docs: remove write-then-readback constraint from lark-calendar skill

写操作后不再要求等待2秒回查验证，直接信任API返回结果，
减少不必要的耗时。

Change-Id: I2d7e1ecab4450839f8232e65d43bca39e851ae22

.golangci.yml

@@ -29,11 +29,11 @@ linters:
     - unused          # checks for unused constants, variables, functions and types
     - depguard        # blocks forbidden package imports
     - forbidigo       # forbids specific function calls
-    - errorlint       # enforces error wrapping (%w) and errors.Is/As over == and type asserts
 
     # To enable later after fixing existing issues:
     # - errcheck      # checks for unchecked errors
     # - errname       # checks that error types are named XxxError
+    # - errorlint     # checks error wrapping best practices
     # - gosec         # security-oriented linter
     # - misspell      # finds commonly misspelled English words
     # - staticcheck   # comprehensive static analysis
@@ -49,16 +49,9 @@ linters:
           - gocritic
           - depguard
           - forbidigo
-          - errorlint # tests legitimately do identity (==) and concrete type-assert checks
-      # forbidigo runs repo-wide (minus the boundaries below) so errs-no-bare-wrap
-      # has no gap. The framework bans (os/vfs, raw HTTP, fmt.Print, filepath,
-      # log) stay scoped to shortcuts/ + internal/ + config/auth/service via the
-      # next rule; elsewhere only errs-no-bare-wrap fires.
-      - path-except: (shortcuts/|internal/|cmd/|events/)
-        linters:
-          - forbidigo
+      # Paths that run forbidigo. Add an entry when a path joins one of
+      # the rules below.
       - path-except: (shortcuts/|internal/|cmd/auth/|cmd/config/|cmd/service/)
-        text: (vfs|IOStreams|ctx\.Out|shortcuts-no-raw-http|filepath functions|os\.Exit|structured error return)
         linters:
           - forbidigo
       - path: internal/vfs/
@@ -84,14 +77,25 @@ linters:
         text: shortcuts-no-raw-http
         linters:
           - forbidigo
-      # errs-no-bare-wrap enforced across every command/wire boundary by
-      # structural prefix, so any future business domain or command is covered
-      # without editing an allowlist. Genuine intermediate wraps inside these
-      # paths use //nolint:forbidigo with a reason.
-      - path-except: (cmd/|shortcuts/|events/)
+      # errs-typed-only enforced on paths already migrated to errs.NewXxxError.
+      # Add a path when its migration is complete.
+      - path-except: (internal/auth/|internal/errcompat/|internal/errclass/|internal/client/|internal/cmdutil/factory\.go|cmd/auth/|cmd/config/|cmd/service/|shortcuts/common/mcp_client\.go|shortcuts/apps/|shortcuts/base/|shortcuts/calendar/|shortcuts/contact/|shortcuts/doc/|shortcuts/drive/|shortcuts/im/|shortcuts/mail/|shortcuts/markdown/|shortcuts/minutes/|shortcuts/okr/|shortcuts/sheets/|shortcuts/slides/|shortcuts/task/|shortcuts/vc/|shortcuts/whiteboard/|shortcuts/wiki/|internal/event/consume/|cmd/event/|events/|shortcuts/event/)
+        text: errs-typed-only
+        linters:
+          - forbidigo
+      # errs-no-bare-wrap enforced on paths fully migrated to typed final
+      # errors. Scoped separately from errs-typed-only because cmd/auth/,
+      # cmd/config/ still have residual fmt.Errorf and must not be caught.
+      - path-except: (shortcuts/apps/|shortcuts/base/|shortcuts/calendar/|shortcuts/contact/|shortcuts/doc/|shortcuts/drive/|shortcuts/im/|shortcuts/mail/|shortcuts/markdown/|shortcuts/minutes/|shortcuts/okr/|shortcuts/sheets/|shortcuts/slides/|shortcuts/task/|shortcuts/vc/|shortcuts/whiteboard/|shortcuts/wiki/|shortcuts/common/mcp_client\.go|cmd/event/|events/|shortcuts/event/)
         text: errs-no-bare-wrap
         linters:
           - forbidigo
+      # errs-no-legacy-helper enforced on domains whose shared validation/save
+      # helpers have migrated to typed final errors.
+      - path-except: (shortcuts/apps/|shortcuts/base/|shortcuts/calendar/|shortcuts/contact/|shortcuts/doc/|shortcuts/drive/|shortcuts/im/|shortcuts/mail/|shortcuts/markdown/|shortcuts/minutes/|shortcuts/okr/|shortcuts/sheets/|shortcuts/slides/|shortcuts/task/|shortcuts/vc/|shortcuts/whiteboard/|shortcuts/wiki/|cmd/event/|events/|shortcuts/event/)
+        text: errs-no-legacy-helper
+        linters:
+          - forbidigo
 
   settings:
     depguard:
@@ -110,6 +114,22 @@ linters:
                 Use runtime.FileIO() for file operations or runtime.ValidatePath() for path validation.
     forbidigo:
       forbid:
+        # ── legacy output.Err* helpers banned on migrated paths ──
+        # output.ErrBare is intentionally not listed — it is the predicate-
+        # command silent-exit signal, outside the typed envelope contract.
+        - pattern: output\.(ErrValidation|ErrAuth|ErrNetwork|ErrAPI|ErrWithHint|Errorf)\b
+          msg: >-
+            [errs-typed-only] use errs.NewXxxError(...) builder
+            (see errs/types.go).
+        # ── legacy shared error helpers banned on migrated domains ──
+        # These helpers emit legacy output.Err* / bare error shapes or drop
+        # typed metadata such as Param/Cause. Migrated domains must use typed
+        # common replacements or local typed helpers instead.
+        - pattern: (common\.FlagErrorf|common\.RejectDangerousChars|common\.WrapInputStatError|common\.WrapSaveErrorByCategory)\b
+          msg: >-
+            [errs-no-legacy-helper] these shared helpers emit legacy or
+            metadata-poor error shapes. Use typed common replacements, typed
+            errs.NewXxxError builders, or domain-local typed helpers.
         # ── bare error wraps banned on fully-typed paths ──
         - pattern: (fmt\.Errorf|errors\.New)\b
           msg: >-

AGENTS.md

@@ -141,74 +141,3 @@ CLI arguments are untrusted (they come from AI agents). Call `validate.SafeInput
 | Modify shortcut flags/params | Required | If behavior changes |
 | Shortcut bug fix | Required | If regression risk |
 | Internal refactor (no shortcut impact) | Not needed | Not needed |
-
-
-
-## CCM Harness Skill Routing (v2)
-
-When the user's request matches one of these patterns, invoke the corresponding `/ccm-harness:*` skill via the Skill tool. Skills include multi-step workflows, gates, and quality checks that produce more reliable results than ad-hoc answers. When in doubt, invoke the skill — a false positive is cheaper than a false negative.
-
-### 主链路（spec → idl → dev → release）
-
-| 用户表达 | Skill |
-|---------|-------|
-| "新需求 / 这是个新功能 / 开始一个 req / 写 spec / 起 spec / PRD 来了 / 把 PRD 转 spec / 改 spec / 微调 spec / spec 局部更新 / spec 加一个字段" | `/ccm-harness:draft-spec <req-id> [<arg2>] [--force]`（Phase 0 路由器自动决定 init / generate / update capability）|
-| "review spec / 看 spec / 评审 spec / spec 评审" | `/ccm-harness:spec-review <req-id>` |
-| "生成 thrift / 起 idl / 把 spec 转 thrift" | `/ccm-harness:draft-idl` |
-| "推 thrift / 落 contract / Frozen Spec / codegen / 生成框架代码" | `/ccm-harness:codegen-idl <req-id>` |
-| "实现 spec / 写后端 / 后端开发 / 实现这个功能" | `/ccm-harness:backend-dev <req-id>` |
-| "前端怎么改 / 写前端 / 前端开发 / 前端编码" | `/ccm-harness:frontend-coding <req-id>` |
-| "部署 BOE / 上 PPE / 部署到 feature 环境" | `/ccm-harness:deploy <req-id>` |
-| "提 release / 上线 / 发布 / 走 PRE-GRAY-ONLINE" | `/ccm-harness:release <req-id>` |
-| "触发打包 / build / 起 SCM 编译" | `/ccm-harness:build <repo or psm>` |
-
-### 守护与诊断
-
-| 用户表达 | Skill |
-|---------|-------|
-| "工作流到哪一步了 / 下一步咋走 / 我迷路了" | `/ccm-harness:doctor` |
-| "调试 / debug / 这个 bug 怎么排" | `/ccm-harness:debug` |
-| "查 CI 失败 / CI 跑挂了 / pipeline 红了" | `/ccm-harness:check-ci-failure <mr>` |
-| "检查实现是否符合 spec / 蓝图对比" | `/ccm-harness:check-impl-gap` |
-| "spec 跟代码飘了吗 / drift 检查" | `/ccm-harness:spec-review <req-id> --mode drift` |
-| "Hub 知识跟代码一致吗" | `/ccm-harness:check-knowledge-consistency` |
-| "代码 review / 看 MR / cr 一下" | `/ccm-harness:code-review <mr>` |
-| "设计 review / 看技术方案" | `/ccm-harness:design-review <doc>` |
-
-### 工程辅助
-
-| 用户表达 | Skill |
-|---------|-------|
-| "通知 reviewer / 发 review 卡片" | `/ccm-harness:notify-reviewer <mr>` |
-| "自动修 MR / 按 review 改" | `/ccm-harness:autofix-mr <mr>` |
-| "生成测试用例 / 起 case / 筛选可执行 case / E2E 用例 / Playwright 脚本 / 自动化验收" | `/ccm-harness:test`（路由到 `ccm-e2e-check -> exec-e2e`） |
-| "查 idl / 看 thrift 定义" | `/ccm-harness:lookup-idl <psm>` |
-| "看仓库最近改了啥 / 仓库脉搏" | `/ccm-harness:pulse` |
-
-### 元能力（Skill / Prompt 研发）
-
-| 用户表达 | Skill |
-|---------|-------|
-| "起一个新 skill / 设计 skill" | `/ccm-harness:meta-draft-skill` |
-| "做评测集 / 给 skill 出评测数据" | `/ccm-harness:meta-build-evalset` |
-| "跑评测 / Fornax 实验" | `/ccm-harness:meta-run-eval` |
-| "优化 skill / skill 反馈优化" | `/ccm-harness:meta-optimize-skill` |
-
-### 环境与配置
-
-| 用户表达 | Skill |
-|---------|-------|
-| "升级 ccm-harness / 更新插件" | `/ccm-harness:upgrade` |
-| "看遥测 / 最近的反馈" | `/ccm-harness:show-telemetry` |
-| "清遥测 / 重置 telemetry" | `/ccm-harness:clear-telemetry` |
-| "上报问题 / 提 issue" | `/ccm-harness:report-issue` |
-| "看本地教训 / project learnings / 我们踩过啥" | `/ccm-harness:learn` |
-| "反馈 / 评分这次 skill" | `/ccm-harness:feedback` |
-
-### 使用提示
-
-- **入口**：新需求**必从** `/ccm-harness:draft-spec <req-id>` 开始（Phase 0 路由器自动决定建目录 / 带 PRD 一气呵成）。
-- **不跳步**：spec → idl → dev → release 是流水线，不是菜单——按顺序推进，反向走需要 `/ccm-harness:draft-spec <req-id> "<change-desc>"` 局部修（路由进 update capability）。
-- **横切**：任何阶段发现 spec 要局部改 → `/ccm-harness:draft-spec <req-id> "<change-desc>"`；想检测漂移 → `/ccm-harness:spec-review <req-id> --mode drift`；CI 红 → `/ccm-harness:check-ci-failure`；迷路 → `/ccm-harness:doctor`。
-
-完整流程文档：`docs/user-guide/workflow.md`

CHANGELOG.md

@@ -2,29 +2,6 @@
 
 All notable changes to this project will be documented in this file.
 
-## [v1.0.56] - 2026-06-18
-
-### Features
-
-- **apps**: Add `+session-messages-list` for session turn reply messages (#1402)
-
-### Bug Fixes
-
-- **api**: Align API success envelopes (#1489)
-- **base**: Reject out-of-range pagination flags (#1495)
-
-### Refactor
-
-- Retire legacy error envelopes and enforce typed contract (#1449)
-
-### Documentation
-
-- **skills**: Soften lark-doc style guidance (#1463)
-
-### Build
-
-- Add CI quality gate with semantic review
-
 ## [v1.0.55] - 2026-06-16
 
 ### Features
@@ -1212,7 +1189,6 @@ Bundled AI agent skills for intelligent assistance:
 - Bilingual documentation (English & Chinese).
 - CI/CD pipelines: linting, testing, coverage reporting, and automated releases.
 
-[v1.0.56]: https://github.com/larksuite/cli/releases/tag/v1.0.56
 [v1.0.55]: https://github.com/larksuite/cli/releases/tag/v1.0.55
 [v1.0.54]: https://github.com/larksuite/cli/releases/tag/v1.0.54
 [v1.0.53]: https://github.com/larksuite/cli/releases/tag/v1.0.53

CLAUDE.md

@@ -1,69 +0,0 @@
-
-## CCM Harness Skill Routing (v2)
-
-When the user's request matches one of these patterns, invoke the corresponding `/ccm-harness:*` skill via the Skill tool. Skills include multi-step workflows, gates, and quality checks that produce more reliable results than ad-hoc answers. When in doubt, invoke the skill — a false positive is cheaper than a false negative.
-
-### 主链路（spec → idl → dev → release）
-
-| 用户表达 | Skill |
-|---------|-------|
-| "新需求 / 这是个新功能 / 开始一个 req / 写 spec / 起 spec / PRD 来了 / 把 PRD 转 spec / 改 spec / 微调 spec / spec 局部更新 / spec 加一个字段" | `/ccm-harness:draft-spec <req-id> [<arg2>] [--force]`（Phase 0 路由器自动决定 init / generate / update capability）|
-| "review spec / 看 spec / 评审 spec / spec 评审" | `/ccm-harness:spec-review <req-id>` |
-| "生成 thrift / 起 idl / 把 spec 转 thrift" | `/ccm-harness:draft-idl` |
-| "推 thrift / 落 contract / Frozen Spec / codegen / 生成框架代码" | `/ccm-harness:codegen-idl <req-id>` |
-| "实现 spec / 写后端 / 后端开发 / 实现这个功能" | `/ccm-harness:backend-dev <req-id>` |
-| "前端怎么改 / 写前端 / 前端开发 / 前端编码" | `/ccm-harness:frontend-coding <req-id>` |
-| "部署 BOE / 上 PPE / 部署到 feature 环境" | `/ccm-harness:deploy <req-id>` |
-| "提 release / 上线 / 发布 / 走 PRE-GRAY-ONLINE" | `/ccm-harness:release <req-id>` |
-| "触发打包 / build / 起 SCM 编译" | `/ccm-harness:build <repo or psm>` |
-
-### 守护与诊断
-
-| 用户表达 | Skill |
-|---------|-------|
-| "工作流到哪一步了 / 下一步咋走 / 我迷路了" | `/ccm-harness:doctor` |
-| "调试 / debug / 这个 bug 怎么排" | `/ccm-harness:debug` |
-| "查 CI 失败 / CI 跑挂了 / pipeline 红了" | `/ccm-harness:check-ci-failure <mr>` |
-| "检查实现是否符合 spec / 蓝图对比" | `/ccm-harness:check-impl-gap` |
-| "spec 跟代码飘了吗 / drift 检查" | `/ccm-harness:spec-review <req-id> --mode drift` |
-| "Hub 知识跟代码一致吗" | `/ccm-harness:check-knowledge-consistency` |
-| "代码 review / 看 MR / cr 一下" | `/ccm-harness:code-review <mr>` |
-| "设计 review / 看技术方案" | `/ccm-harness:design-review <doc>` |
-
-### 工程辅助
-
-| 用户表达 | Skill |
-|---------|-------|
-| "通知 reviewer / 发 review 卡片" | `/ccm-harness:notify-reviewer <mr>` |
-| "自动修 MR / 按 review 改" | `/ccm-harness:autofix-mr <mr>` |
-| "生成测试用例 / 起 case / 筛选可执行 case / E2E 用例 / Playwright 脚本 / 自动化验收" | `/ccm-harness:test`（路由到 `ccm-e2e-check -> exec-e2e`） |
-| "查 idl / 看 thrift 定义" | `/ccm-harness:lookup-idl <psm>` |
-| "看仓库最近改了啥 / 仓库脉搏" | `/ccm-harness:pulse` |
-
-### 元能力（Skill / Prompt 研发）
-
-| 用户表达 | Skill |
-|---------|-------|
-| "起一个新 skill / 设计 skill" | `/ccm-harness:meta-draft-skill` |
-| "做评测集 / 给 skill 出评测数据" | `/ccm-harness:meta-build-evalset` |
-| "跑评测 / Fornax 实验" | `/ccm-harness:meta-run-eval` |
-| "优化 skill / skill 反馈优化" | `/ccm-harness:meta-optimize-skill` |
-
-### 环境与配置
-
-| 用户表达 | Skill |
-|---------|-------|
-| "升级 ccm-harness / 更新插件" | `/ccm-harness:upgrade` |
-| "看遥测 / 最近的反馈" | `/ccm-harness:show-telemetry` |
-| "清遥测 / 重置 telemetry" | `/ccm-harness:clear-telemetry` |
-| "上报问题 / 提 issue" | `/ccm-harness:report-issue` |
-| "看本地教训 / project learnings / 我们踩过啥" | `/ccm-harness:learn` |
-| "反馈 / 评分这次 skill" | `/ccm-harness:feedback` |
-
-### 使用提示
-
-- **入口**：新需求**必从** `/ccm-harness:draft-spec <req-id>` 开始（Phase 0 路由器自动决定建目录 / 带 PRD 一气呵成）。
-- **不跳步**：spec → idl → dev → release 是流水线，不是菜单——按顺序推进，反向走需要 `/ccm-harness:draft-spec <req-id> "<change-desc>"` 局部修（路由进 update capability）。
-- **横切**：任何阶段发现 spec 要局部改 → `/ccm-harness:draft-spec <req-id> "<change-desc>"`；想检测漂移 → `/ccm-harness:spec-review <req-id> --mode drift`；CI 红 → `/ccm-harness:check-ci-failure`；迷路 → `/ccm-harness:doctor`。
-
-完整流程文档：`docs/user-guide/workflow.md`

cmd/api/api.go

@@ -10,7 +10,6 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/client"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -124,13 +123,7 @@ func buildAPIRequest(opts *APIOptions) (client.RawApiRequest, *cmdutil.FileUploa
 
 	// stdin conflict: --params and --data cannot both read from stdin, regardless of --file.
 	if opts.Params == "-" && opts.Data == "-" {
-		return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
-			"--params and --data cannot both read from stdin (-)").
-			WithHint("pass at most one flag as '-'; give the other inline JSON or @file").
-			WithParams(
-				errs.InvalidParam{Name: "--params", Reason: "reads from stdin (-)"},
-				errs.InvalidParam{Name: "--data", Reason: "reads from stdin (-)"},
-			)
+		return client.RawApiRequest{}, nil, output.ErrValidation("--params and --data cannot both read from stdin (-)")
 	}
 
 	params, err := cmdutil.ParseJSONMap(opts.Params, "--params", stdin, fileIO)
@@ -160,10 +153,7 @@ func buildAPIRequest(opts *APIOptions) (client.RawApiRequest, *cmdutil.FileUploa
 				return client.RawApiRequest{}, nil, err
 			}
 			if _, ok := dataFields.(map[string]any); !ok {
-				return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
-					"--data must be a JSON object when used with --file").
-					WithHint(`with --file, --data carries multipart form fields, e.g. --data '{"image_type":"message"}'`).
-					WithParam("--data")
+				return client.RawApiRequest{}, nil, output.ErrValidation("--data must be a JSON object when used with --file")
 			}
 		}
 
@@ -206,13 +196,7 @@ func apiRun(opts *APIOptions) error {
 	}
 
 	if opts.PageAll && opts.Output != "" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument,
-			"--output and --page-all are mutually exclusive").
-			WithHint("drop --page-all to save a binary response, or drop --output to paginate JSON").
-			WithParams(
-				errs.InvalidParam{Name: "--output", Reason: "conflicts with --page-all"},
-				errs.InvalidParam{Name: "--page-all", Reason: "conflicts with --output"},
-			)
+		return output.ErrValidation("--output and --page-all are mutually exclusive")
 	}
 	if err := output.ValidateJqFlags(opts.JqExpr, opts.Output, opts.Format); err != nil {
 		return err
@@ -259,7 +243,7 @@ func apiRun(opts *APIOptions) error {
 		// pass on *output.ExitError values. Typed *errs.* errors that flow
 		// through here keep their canonical message / hint from BuildAPIError;
 		// MarkRaw is a no-op on those (it only flips a flag on *ExitError).
-		return errs.MarkRaw(err)
+		return output.MarkRaw(err)
 	}
 	err = client.HandleResponse(resp, client.ResponseOptions{
 		OutputPath:  opts.Output,
@@ -279,7 +263,7 @@ func apiRun(opts *APIOptions) error {
 	// MarkRaw: see comment above on the DoAPI path. Skips legacy
 	// *ExitError enrichment; typed errors flow through unchanged.
 	if err != nil {
-		return errs.MarkRaw(err)
+		return output.MarkRaw(err)
 	}
 	return nil
 }
@@ -296,11 +280,11 @@ func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawAp
 	if jqExpr != "" {
 		result, err := ac.PaginateAll(ctx, request, pagOpts)
 		if err != nil {
-			return errs.MarkRaw(err)
+			return output.MarkRaw(err)
 		}
 		if apiErr := ac.CheckResponse(result, pagOpts.Identity); apiErr != nil {
 			output.FormatValue(out, result, output.FormatJSON)
-			return errs.MarkRaw(apiErr)
+			return output.MarkRaw(apiErr)
 		}
 		return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
 			CommandPath: commandPath,
@@ -329,10 +313,10 @@ func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawAp
 			return nil
 		}, pagOpts)
 		if err != nil {
-			return errs.MarkRaw(err)
+			return output.MarkRaw(err)
 		}
 		if apiErr := ac.CheckResponse(result, pagOpts.Identity); apiErr != nil {
-			return errs.MarkRaw(apiErr)
+			return output.MarkRaw(apiErr)
 		}
 		if !hasItems {
 			fmt.Fprintf(errOut, "warning: this API does not return a list, format %q is not supported, falling back to json\n", format)
@@ -347,11 +331,11 @@ func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawAp
 	default:
 		result, err := ac.PaginateAll(ctx, request, pagOpts)
 		if err != nil {
-			return errs.MarkRaw(err)
+			return output.MarkRaw(err)
 		}
 		if apiErr := ac.CheckResponse(result, pagOpts.Identity); apiErr != nil {
 			output.FormatValue(out, result, output.FormatJSON)
-			return errs.MarkRaw(apiErr)
+			return output.MarkRaw(apiErr)
 		}
 		return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
 			CommandPath: commandPath,

cmd/auth/check_test.go

@@ -33,9 +33,12 @@ func TestAuthCheckRun_NotLoggedIn_ExitOneWithStdoutOnly(t *testing.T) {
 	if got := output.ExitCodeOf(err); got != 1 {
 		t.Errorf("exit code = %d, want 1 (predicate 'missing' signal)", got)
 	}
-	var bare *output.BareError
+	var bare *output.ExitError
 	if !errors.As(err, &bare) {
-		t.Fatalf("expected *output.BareError (ErrBare), got %T: %v", err, err)
+		t.Fatalf("expected *output.ExitError (ErrBare), got %T: %v", err, err)
+	}
+	if bare.Detail != nil {
+		t.Errorf("ErrBare must carry no Detail (no envelope), got %+v", bare.Detail)
 	}
 
 	if stderr.Len() != 0 {

cmd/auth/list.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	larkauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -60,7 +59,7 @@ func authListRun(opts *ListOptions) error {
 		// keep the same contract here. We still want the hint to be
 		// workspace-aware, so we pull the message+hint out of
 		// NotConfiguredError() instead of hard-coding it.
-		var cfgErr *errs.ConfigError
+		var cfgErr *core.ConfigError
 		if errors.As(core.NotConfiguredError(), &cfgErr) {
 			fmt.Fprintln(f.IOStreams.ErrOut, cfgErr.Message)
 			if cfgErr.Hint != "" {

cmd/auth/login_test.go

@@ -878,7 +878,7 @@ func TestAuthLoginRun_DeviceCodeTokenNilCleansScopeCache(t *testing.T) {
 // contract that when --json is set and pollDeviceToken returns OK=false,
 // stdout carries the structured authorization_failed event and stderr is
 // NOT polluted with a typed envelope. The returned error is a bare
-// BareError with ExitAuth so the dispatcher only propagates the exit code
+// ExitError with ExitAuth so the dispatcher only propagates the exit code
 // without emitting a second envelope on top of the JSON event.
 func TestAuthLoginRun_JSONAbort_StdoutEventOnly_StderrEmpty(t *testing.T) {
 	keyring.MockInit()
@@ -945,13 +945,16 @@ func TestAuthLoginRun_JSONAbort_StdoutEventOnly_StderrEmpty(t *testing.T) {
 		t.Errorf("stderr should not contain JSON envelope fields, got: %s", stderrStr)
 	}
 
-	// Returned error must be the bare *output.BareError signal (no envelope).
-	var bareErr *output.BareError
-	if !errors.As(err, &bareErr) {
-		t.Fatalf("expected *output.BareError, got %T: %v", err, err)
+	// Returned error must be the bare *output.ExitError signal (no envelope).
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
 	}
-	if bareErr.Code != output.ExitAuth {
-		t.Fatalf("BareError.Code = %d, want %d", bareErr.Code, output.ExitAuth)
+	if exitErr.Code != output.ExitAuth {
+		t.Fatalf("ExitError.Code = %d, want %d", exitErr.Code, output.ExitAuth)
+	}
+	if exitErr.Detail != nil {
+		t.Errorf("ExitError.Detail should be nil for bare signal, got: %+v", exitErr.Detail)
 	}
 }
 

cmd/completion/completion.go

@@ -4,7 +4,8 @@
 package completion
 
 import (
-	"github.com/larksuite/cli/errs"
+	"fmt"
+
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/spf13/cobra"
 )
@@ -31,9 +32,7 @@ func NewCmdCompletion(f *cmdutil.Factory) *cobra.Command {
 			case "powershell":
 				return root.GenPowerShellCompletionWithDesc(out)
 			default:
-				return errs.NewValidationError(errs.SubtypeInvalidArgument,
-					"unsupported shell: %s", args[0]).
-					WithHint("supported shells: bash, zsh, fish, powershell")
+				return fmt.Errorf("unsupported shell: %s", args[0])
 			}
 		},
 	}

cmd/config/bind.go

@@ -212,7 +212,10 @@ func finalizeSource(opts *BindOptions) (string, error) {
 	if opts.IsTUI && !opts.langExplicit {
 		lang, err := promptLangSelection()
 		if err != nil {
-			return "", langSelectionError(err)
+			if err == huh.ErrUserAborted {
+				return "", output.ErrBare(1)
+			}
+			return "", output.Errorf(output.ExitInternal, "internal", "language selection failed: %v", err)
 		}
 		opts.Lang = string(lang)
 		opts.UILang = lang

cmd/config/bind_test.go

@@ -20,29 +20,35 @@ import (
 	"github.com/larksuite/cli/internal/output"
 )
 
-// wantErrDetail is the normalized comparison shape for a typed error's wire
-// fields: Type is the error's Category string ("validation", "config", ...),
-// alongside Message and Hint.
-type wantErrDetail struct {
-	Type    string
-	Message string
-	Hint    string
-}
-
-// assertExitError checks the full structured error in one assertion against a
-// typed error (ValidationError or ConfigError), normalizing its Category /
-// Message / Hint to wantDetail.
-func assertExitError(t *testing.T, err error, wantCode int, wantDetail wantErrDetail) {
+// assertExitError checks the full structured error in one assertion. It
+// accepts both *output.ExitError (used by output.ErrWithHint) and the
+// typed errors (ValidationError, ConfigError) — they normalize to the same
+// wantDetail fields. The wantDetail.Type is matched against the typed error's
+// Category string ("validation", "config", etc.).
+func assertExitError(t *testing.T, err error, wantCode int, wantDetail output.ErrDetail) {
 	t.Helper()
 	if err == nil {
 		t.Fatal("expected error, got nil")
 	}
+	var exitErr *output.ExitError
+	if errors.As(err, &exitErr) {
+		if exitErr.Code != wantCode {
+			t.Errorf("exit code = %d, want %d", exitErr.Code, wantCode)
+		}
+		if exitErr.Detail == nil {
+			t.Fatal("expected non-nil error detail")
+		}
+		if !reflect.DeepEqual(*exitErr.Detail, wantDetail) {
+			t.Errorf("error detail mismatch:\n  got:  %+v\n  want: %+v", *exitErr.Detail, wantDetail)
+		}
+		return
+	}
 	var ve *errs.ValidationError
 	if errors.As(err, &ve) {
 		if got := output.ExitCodeOf(err); got != wantCode {
 			t.Errorf("exit code = %d, want %d", got, wantCode)
 		}
-		gotDetail := wantErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
+		gotDetail := output.ErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
 		if !reflect.DeepEqual(gotDetail, wantDetail) {
 			t.Errorf("validation error mismatch:\n  got:  %+v\n  want: %+v", gotDetail, wantDetail)
 		}
@@ -53,13 +59,13 @@ func assertExitError(t *testing.T, err error, wantCode int, wantDetail wantErrDe
 		if got := output.ExitCodeOf(err); got != wantCode {
 			t.Errorf("exit code = %d, want %d", got, wantCode)
 		}
-		gotDetail := wantErrDetail{Type: string(ce.Category), Message: ce.Message, Hint: ce.Hint}
+		gotDetail := output.ErrDetail{Type: string(ce.Category), Message: ce.Message, Hint: ce.Hint}
 		if !reflect.DeepEqual(gotDetail, wantDetail) {
 			t.Errorf("config error mismatch:\n  got:  %+v\n  want: %+v", gotDetail, wantDetail)
 		}
 		return
 	}
-	t.Fatalf("error type = %T, want *errs.ValidationError / *errs.ConfigError; error = %v", err, err)
+	t.Fatalf("error type = %T, want *output.ExitError or *errs.ValidationError / *errs.ConfigError; error = %v", err, err)
 }
 
 // assertEnvelope decodes stdout and checks it matches want exactly — every key
@@ -173,21 +179,15 @@ func TestConfigBindRun_InvalidLang(t *testing.T) {
 			if err == nil {
 				t.Fatalf("expected validation error for --lang %q, got nil", tc.lang)
 			}
-			var valErr *errs.ValidationError
-			if !errors.As(err, &valErr) {
-				t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+			exitErr, ok := err.(*output.ExitError)
+			if !ok {
+				t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
 			}
-			if valErr.Subtype != errs.SubtypeInvalidArgument {
-				t.Errorf("subtype = %q, want %q", valErr.Subtype, errs.SubtypeInvalidArgument)
+			if exitErr.Code != output.ExitValidation {
+				t.Errorf("exit code = %d, want %d (validation)", exitErr.Code, output.ExitValidation)
 			}
-			if valErr.Param != "--lang" {
-				t.Errorf("param = %q, want %q", valErr.Param, "--lang")
-			}
-			if got := output.ExitCodeOf(err); got != output.ExitValidation {
-				t.Errorf("exit code = %d, want %d (validation)", got, output.ExitValidation)
-			}
-			if !strings.Contains(err.Error(), "invalid --lang") {
-				t.Errorf("error message %q does not contain 'invalid --lang'", err.Error())
+			if !strings.Contains(exitErr.Error(), "invalid --lang") {
+				t.Errorf("error message %q does not contain 'invalid --lang'", exitErr.Error())
 			}
 		})
 	}
@@ -365,7 +365,7 @@ func TestConfigBindRun_InvalidSource(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "invalid"})
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `invalid --source "invalid"; valid values: openclaw, hermes, lark-channel`,
 	})
@@ -382,7 +382,7 @@ func TestConfigBindRun_MissingSourceNonTTY(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	// TestFactory has IsTerminal=false by default
 	err := configBindRun(&BindOptions{Factory: f, Source: ""})
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: "cannot determine Agent source: no --source flag and no Agent environment detected",
 		Hint:    "pass --source openclaw|hermes|lark-channel, or run this command inside the corresponding Agent context",
@@ -421,7 +421,7 @@ func TestConfigBindRun_SourceEnvMismatch_OpenClawFlagInHermesEnv(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `--source "openclaw" does not match detected Agent environment (hermes)`,
 		Hint:    "remove --source to auto-detect, or run this command in the correct Agent context",
@@ -437,7 +437,7 @@ func TestConfigBindRun_SourceEnvMismatch_HermesFlagInOpenClawEnv(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `--source "hermes" does not match detected Agent environment (openclaw)`,
 		Hint:    "remove --source to auto-detect, or run this command in the correct Agent context",
@@ -566,7 +566,7 @@ func TestConfigBindRun_HermesMissingEnvFile(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
 	envPath := filepath.Join(hermesHome, ".env")
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "failed to read Hermes config: open " + envPath + ": no such file or directory",
 		Hint:    "verify Hermes is installed and configured at " + envPath,
@@ -584,7 +584,7 @@ func TestConfigBindRun_OpenClawMissingFile(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
 	configPath := filepath.Join(openclawHome, ".openclaw", "openclaw.json")
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "cannot read " + configPath + ": open " + configPath + ": no such file or directory",
 		Hint:    "verify OpenClaw is installed and configured",
@@ -731,7 +731,7 @@ func TestConfigBindRun_SourceEnvMismatch_LarkChannelFlagInOpenClawEnv(t *testing
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `--source "lark-channel" does not match detected Agent environment (openclaw)`,
 		Hint:    "remove --source to auto-detect, or run this command in the correct Agent context",
@@ -750,7 +750,7 @@ func TestConfigBindRun_LarkChannelMissingFile(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
 	configPath := filepath.Join(fakeHome, ".lark-channel", "config.json")
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "cannot read " + configPath + ": open " + configPath + ": no such file or directory",
 		Hint:    "verify lark-channel-bridge is installed and configured",
@@ -770,7 +770,7 @@ func TestConfigBindRun_LarkChannelEmptyAppID(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "accounts.app.id missing in " + configPath,
 		Hint:    "run lark-channel-bridge's setup to populate the app credential",
@@ -789,7 +789,7 @@ func TestConfigBindRun_LarkChannelEmptySecret(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "accounts.app.secret is empty in " + configPath,
 		Hint:    "run lark-channel-bridge's setup to populate the app credential",
@@ -835,19 +835,17 @@ func TestConfigShowRun_AgentWorkspaceNotBound(t *testing.T) {
 		t.Fatal("expected error for unbound workspace")
 	}
 	// Should be a structured ConfigError suggesting config bind, not config init.
-	var cfgErr *errs.ConfigError
+	var cfgErr *core.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *core.ConfigError", err)
 	}
 	// Config errors share ExitAuth (3); the workspace is detected but no
 	// binding exists yet, which is a config error.
-	if got := output.ExitCodeOf(err); got != output.ExitAuth {
-		t.Errorf("exit code = %d, want %d (config category → ExitAuth)", got, output.ExitAuth)
+	if cfgErr.Code != output.ExitAuth {
+		t.Errorf("exit code = %d, want %d (config category → ExitAuth)", cfgErr.Code, output.ExitAuth)
 	}
-	// The workspace name stays out of the wire subtype; it only appears in
-	// the message.
-	if cfgErr.Subtype != errs.SubtypeNotConfigured {
-		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
+	if cfgErr.Type != "openclaw" {
+		t.Errorf("type = %q, want %q", cfgErr.Type, "openclaw")
 	}
 	if !strings.Contains(cfgErr.Message, "openclaw context detected") {
 		t.Errorf("message missing 'openclaw context detected': %q", cfgErr.Message)
@@ -1189,7 +1187,7 @@ func TestConfigBindRun_OpenClawMultiAccount_TTYFlagMode(t *testing.T) {
 	// iterates a map — ordering is non-deterministic. DeepEqual inline against
 	// each accepted variant so every ErrDetail field (Type, Code, Message,
 	// Hint, ConsoleURL, Detail, and any future addition) is still compared.
-	base := wantErrDetail{
+	base := output.ErrDetail{
 		Type:    "validation",
 		Message: "multiple accounts in openclaw.json; pass --app-id <id>",
 	}
@@ -1205,7 +1203,7 @@ func TestConfigBindRun_OpenClawMultiAccount_TTYFlagMode(t *testing.T) {
 	if !errors.As(err, &ve) {
 		t.Fatalf("error type = %T, want *errs.ValidationError; err = %v", err, err)
 	}
-	got := wantErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
+	got := output.ErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
 	if !reflect.DeepEqual(got, wantWorkFirst) && !reflect.DeepEqual(got, wantPersonalFirst) {
 		t.Errorf("error detail did not match any accepted variant:\n  got:  %+v\n  want: %+v OR %+v",
 			got, wantWorkFirst, wantPersonalFirst)
@@ -1232,7 +1230,7 @@ func TestConfigBindRun_OpenClawMultiAccount_WrongAppID(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw", AppID: "nonexistent"})
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `--app-id "nonexistent" not found in openclaw.json`,
 		Hint:    "available app IDs:\n  cli_only_one",
@@ -1252,7 +1250,7 @@ func TestConfigBindRun_InvalidIdentity(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes", Identity: "invalid"})
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `invalid --identity "invalid"; valid values: bot-only, user-default`,
 	})
@@ -1538,7 +1536,7 @@ func TestConfigBindRun_HermesMissingAppID(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
 	envPath := filepath.Join(hermesHome, ".env")
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "FEISHU_APP_ID not found in " + envPath,
 		Hint:    "run 'hermes setup' to configure Feishu credentials",
@@ -1558,7 +1556,7 @@ func TestConfigBindRun_HermesMissingAppSecret(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
 	envPath := filepath.Join(hermesHome, ".env")
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "FEISHU_APP_SECRET not found in " + envPath,
 		Hint:    "run 'hermes setup' to configure Feishu credentials",
@@ -1584,7 +1582,7 @@ func TestConfigBindRun_OpenClawMissingFeishu(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "openclaw.json missing channels.feishu section",
 		Hint:    "configure Feishu in OpenClaw first",
@@ -1612,7 +1610,7 @@ func TestConfigBindRun_OpenClawEmptyAppSecret(t *testing.T) {
 	openclawPath := filepath.Join(openclawDir, "openclaw.json")
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "appSecret is empty for app cli_no_secret in " + openclawPath,
 		Hint:    "configure channels.feishu.appSecret in openclaw.json",
@@ -1674,7 +1672,7 @@ func TestConfigBindRun_OpenClawDisabledAccount(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "no Feishu app configured in openclaw.json",
 		Hint:    "configure channels.feishu.appId in openclaw.json",

cmd/config/binder_test.go

@@ -51,7 +51,7 @@ func assertCandidate(t *testing.T, got *Candidate, want Candidate) {
 func TestSelectCandidate_ZeroCandidates_OpenClaw(t *testing.T) {
 	b := &fakeBinder{name: "openclaw", path: "/tmp/openclaw.json"}
 	_, err := selectCandidate(b, nil, "", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "no Feishu app configured in openclaw.json",
 		Hint:    "configure channels.feishu.appId in openclaw.json",
@@ -64,7 +64,7 @@ func TestSelectCandidate_ZeroCandidates_GenericSource(t *testing.T) {
 	// even before it has a bespoke error message.
 	b := &fakeBinder{name: "hermes", path: "/tmp/.env"}
 	_, err := selectCandidate(b, nil, "", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitAuth, wantErrDetail{
+	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
 		Type:    "config",
 		Message: "hermes: no app configured",
 	})
@@ -100,7 +100,7 @@ func TestSelectCandidate_AppIDFlag_NoMatch(t *testing.T) {
 		{AppID: "cli_home", Label: "home"},
 	}
 	_, err := selectCandidate(b, candidates, "nonexistent", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `--app-id "nonexistent" not found in openclaw.json`,
 		Hint:    "available app IDs:\n  cli_work (work)\n  cli_home (home)",
@@ -117,7 +117,7 @@ func TestSelectCandidate_MultiCandidate_NoFlag_NonTUI(t *testing.T) {
 		{AppID: "cli_home", Label: "home"},
 	}
 	_, err := selectCandidate(b, candidates, "", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: "multiple accounts in openclaw.json; pass --app-id <id>",
 		Hint:    "available app IDs:\n  cli_work (work)\n  cli_home (home)",
@@ -152,7 +152,7 @@ func TestSelectCandidate_SingleCandidate_WrongFlag(t *testing.T) {
 	b := &fakeBinder{name: "openclaw", path: "/tmp/openclaw.json"}
 	candidates := []Candidate{{AppID: "cli_only"}}
 	_, err := selectCandidate(b, candidates, "nonexistent", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
 		Type:    "validation",
 		Message: `--app-id "nonexistent" not found in openclaw.json`,
 		Hint:    "available app IDs:\n  cli_only",

cmd/config/config_test.go

@@ -12,7 +12,6 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	extcred "github.com/larksuite/cli/extension/credential"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -93,16 +92,16 @@ func TestConfigShowRun_NotConfiguredReturnsStructuredError(t *testing.T) {
 		t.Fatal("expected error")
 	}
 
-	var cfgErr *errs.ConfigError
+	var cfgErr *core.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *core.ConfigError", err)
 	}
 	// Config errors share ExitAuth (3), not ExitValidation.
-	if got := output.ExitCodeOf(err); got != output.ExitAuth {
-		t.Fatalf("exit code = %d, want %d (config category → ExitAuth)", got, output.ExitAuth)
+	if cfgErr.Code != output.ExitAuth {
+		t.Fatalf("exit code = %d, want %d (config category → ExitAuth)", cfgErr.Code, output.ExitAuth)
 	}
-	if cfgErr.Subtype != errs.SubtypeNotConfigured || cfgErr.Message != "not configured" {
-		t.Fatalf("detail = %+v, want not_configured/not configured", cfgErr)
+	if cfgErr.Type != "config" || cfgErr.Message != "not configured" {
+		t.Fatalf("detail = %+v, want config/not configured", cfgErr)
 	}
 }
 
@@ -234,21 +233,15 @@ func TestConfigInitCmd_InvalidLang(t *testing.T) {
 			if err == nil {
 				t.Fatalf("expected validation error for --lang %q, got nil", tc.lang)
 			}
-			var valErr *errs.ValidationError
-			if !errors.As(err, &valErr) {
-				t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+			exitErr, ok := err.(*output.ExitError)
+			if !ok {
+				t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
 			}
-			if valErr.Subtype != errs.SubtypeInvalidArgument {
-				t.Errorf("subtype = %q, want %q", valErr.Subtype, errs.SubtypeInvalidArgument)
+			if exitErr.Code != output.ExitValidation {
+				t.Errorf("exit code = %d, want %d (validation)", exitErr.Code, output.ExitValidation)
 			}
-			if valErr.Param != "--lang" {
-				t.Errorf("param = %q, want %q", valErr.Param, "--lang")
-			}
-			if got := output.ExitCodeOf(err); got != output.ExitValidation {
-				t.Errorf("exit code = %d, want %d (validation)", got, output.ExitValidation)
-			}
-			if !strings.Contains(err.Error(), "invalid --lang") {
-				t.Errorf("error message %q does not contain 'invalid --lang'", err.Error())
+			if !strings.Contains(exitErr.Error(), "invalid --lang") {
+				t.Errorf("error message %q does not contain 'invalid --lang'", exitErr.Error())
 			}
 		})
 	}
@@ -392,38 +385,8 @@ func TestSaveAsProfile_RejectsProfileNameCollisionWithExistingAppID(t *testing.T
 	if err == nil {
 		t.Fatal("expected conflict error")
 	}
-	// A name/appId conflict is user input — a typed validation error naming the
-	// offending flag, not a system storage failure.
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("error type = %T, want *errs.ValidationError; err=%v", err, err)
-	}
-	if verr.Subtype != errs.SubtypeInvalidArgument {
-		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
-	}
-	if verr.Param != "--name" {
-		t.Errorf("param = %q, want --name", verr.Param)
-	}
-	if output.ExitCodeOf(err) != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (validation)", output.ExitCodeOf(err), output.ExitValidation)
-	}
-	if !strings.Contains(verr.Message, "conflicts with existing appId") {
-		t.Errorf("message = %q, want conflict description", verr.Message)
-	}
-}
-
-// TestWrapSaveConfigError_PassesTypedValidationThrough pins that a user-input
-// validation error (e.g. the --name conflict) is not reclassified as an
-// internal storage failure on its way up through the save call sites.
-func TestWrapSaveConfigError_PassesTypedValidationThrough(t *testing.T) {
-	conflict := errs.NewValidationError(errs.SubtypeInvalidArgument, "name conflict").WithParam("--name")
-	var verr *errs.ValidationError
-	if !errors.As(wrapSaveConfigError(conflict), &verr) {
-		t.Fatalf("typed validation must pass through unchanged, got %T", wrapSaveConfigError(conflict))
-	}
-	var ierr *errs.InternalError
-	if !errors.As(wrapSaveConfigError(errors.New("disk full")), &ierr) || ierr.Subtype != errs.SubtypeStorage {
-		t.Fatalf("untyped failure must become internal/storage")
+	if !strings.Contains(err.Error(), "conflicts with existing appId") {
+		t.Fatalf("error = %v, want conflict with existing appId", err)
 	}
 }
 

cmd/config/init.go

@@ -6,11 +6,13 @@ package config
 import (
 	"bufio"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"os"
 	"strings"
 
+	"github.com/charmbracelet/huh"
 	"github.com/spf13/cobra"
 
 	"github.com/larksuite/cli/errs"
@@ -125,9 +127,12 @@ func guardAgentWorkspace(opts *ConfigInitOptions) error {
 	if ws.IsLocal() {
 		return nil
 	}
-	return errs.NewConfigError(errs.SubtypeNotConfigured,
-		"config init is refused inside %s context (would create a parallel app and shadow the existing %s binding)", ws.Display(), ws.Display()).
-		WithHint("see `lark-cli config bind --help` to bind lark-cli to the Agent's existing app instead. Pass --force-init only if the user explicitly wants a separate app in this workspace.")
+	return &core.ConfigError{
+		Code:    2,
+		Type:    ws.Display(),
+		Message: fmt.Sprintf("config init is refused inside %s context (would create a parallel app and shadow the existing %s binding)", ws.Display(), ws.Display()),
+		Hint:    "see `lark-cli config bind --help` to bind lark-cli to the Agent's existing app instead. Pass --force-init only if the user explicitly wants a separate app in this workspace.",
+	}
 }
 
 // hasAnyNonInteractiveFlag returns true if any non-interactive flag is set.
@@ -178,20 +183,6 @@ func saveInitConfig(profileName string, existing *core.MultiAppConfig, f *cmduti
 	return saveAsOnlyApp(appId, secret, brand, string(preferredLang(i18n.Lang(lang), prior)))
 }
 
-// wrapSaveConfigError passes an already-typed error (e.g. the --name conflict
-// validation error from saveAsProfile) through unchanged, and classifies any
-// other failure as an internal storage error. Without the passthrough a user
-// input error would surface to agents as a system storage failure.
-func wrapSaveConfigError(err error) error {
-	if err == nil {
-		return nil
-	}
-	if _, ok := errs.ProblemOf(err); ok {
-		return err
-	}
-	return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
-}
-
 // saveAsProfile appends or updates a named profile in the config.
 // If a profile with the same name exists, it updates it; otherwise appends.
 // When updating, cleans up old keychain secrets if AppId changed.
@@ -216,9 +207,7 @@ func saveAsProfile(existing *core.MultiAppConfig, kc keychain.KeychainAccess, pr
 		multi.Apps[idx].Lang = preferredLang(i18n.Lang(lang), multi.Apps[idx].Lang)
 	} else {
 		if findAppIndexByAppID(multi, profileName) >= 0 {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument,
-				"profile name %q conflicts with existing appId", profileName).
-				WithParam("--name")
+			return fmt.Errorf("profile name %q conflicts with existing appId", profileName)
 		}
 		// Append new profile
 		multi.Apps = append(multi.Apps, core.AppConfig{
@@ -260,8 +249,8 @@ func findAppIndexByAppID(multi *core.MultiAppConfig, appID string) int {
 // wrapUpdateExistingProfileErr classifies the error returned by
 // updateExistingProfileWithoutSecret. Typed errors (e.g. *errs.ValidationError
 // for blank-input) pass through unchanged so their exit code semantics
-// survive; everything else (filesystem, keychain, etc.) is wrapped as
-// InternalError.
+// survive; legacy *output.ExitError also passes through; everything else
+// (filesystem, keychain, etc.) is wrapped as InternalError.
 func wrapUpdateExistingProfileErr(err error) error {
 	if err == nil {
 		return nil
@@ -269,6 +258,10 @@ func wrapUpdateExistingProfileErr(err error) error {
 	if errs.IsTyped(err) {
 		return err
 	}
+	var exitErr *output.ExitError
+	if errors.As(err, &exitErr) {
+		return err
+	}
 	return errs.NewInternalError(errs.SubtypeSDKError, "failed to save config: %v", err).WithCause(err)
 }
 
@@ -343,7 +336,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 			return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 		}
 		if err := saveInitConfig(opts.ProfileName, existing, f, opts.AppID, secret, brand, opts.Lang); err != nil {
-			return wrapSaveConfigError(err)
+			return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 		}
 		output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Configuration saved to %s", core.GetConfigPath()))
 		printLangPreferenceConfirmation(opts)
@@ -360,7 +353,10 @@ func configInitRun(opts *ConfigInitOptions) error {
 	if f.IOStreams.IsTerminal && !opts.langExplicit && !opts.hasAnyNonInteractiveFlag() {
 		lang, err := promptLangSelection()
 		if err != nil {
-			return langSelectionError(err)
+			if err == huh.ErrUserAborted {
+				return output.ErrBare(1)
+			}
+			return output.Errorf(output.ExitInternal, "internal", "language selection failed: %v", err)
 		}
 		opts.Lang = string(lang)
 		opts.UILang = lang
@@ -383,7 +379,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 			return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 		}
 		if err := saveInitConfig(opts.ProfileName, existing, f, result.AppID, secret, result.Brand, opts.Lang); err != nil {
-			return wrapSaveConfigError(err)
+			return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 		}
 		printLangPreferenceConfirmation(opts)
 		output.PrintJson(f.IOStreams.Out, map[string]interface{}{"appId": result.AppID, "appSecret": "****", "brand": result.Brand})
@@ -413,7 +409,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 				return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 			}
 			if err := saveInitConfig(opts.ProfileName, existing, f, result.AppID, secret, result.Brand, opts.Lang); err != nil {
-				return wrapSaveConfigError(err)
+				return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 			}
 		} else if result.Mode == "existing" && result.AppID != "" {
 			// Existing app with unchanged secret — update app ID and brand only
@@ -518,7 +514,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 		return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 	}
 	if err := saveInitConfig(opts.ProfileName, existing, f, resolvedAppId, storedSecret, parseBrand(resolvedBrand), opts.Lang); err != nil {
-		return wrapSaveConfigError(err)
+		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 	}
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Configuration saved to %s", core.GetConfigPath()))
 	printLangPreferenceConfirmation(opts)

cmd/config/init_guard_test.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/core"
 )
 
 func TestGuardAgentWorkspace_LocalAllows(t *testing.T) {
@@ -26,15 +26,12 @@ func TestGuardAgentWorkspace_OpenClawRefuses(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected refusal in OpenClaw context, got nil")
 	}
-	var cfgErr *errs.ConfigError
+	var cfgErr *core.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *core.ConfigError", err)
 	}
-	if cfgErr.Subtype != errs.SubtypeNotConfigured {
-		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
-	}
-	if !strings.Contains(cfgErr.Message, "openclaw") {
-		t.Errorf("message must name the openclaw workspace; got %q", cfgErr.Message)
+	if cfgErr.Type != "openclaw" {
+		t.Errorf("type = %q, want %q", cfgErr.Type, "openclaw")
 	}
 	if !strings.Contains(cfgErr.Hint, "config bind --help") {
 		t.Errorf("hint must point to config bind --help; got %q", cfgErr.Hint)
@@ -51,15 +48,12 @@ func TestGuardAgentWorkspace_HermesRefuses(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected refusal in Hermes context, got nil")
 	}
-	var cfgErr *errs.ConfigError
+	var cfgErr *core.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *core.ConfigError", err)
 	}
-	if cfgErr.Subtype != errs.SubtypeNotConfigured {
-		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
-	}
-	if !strings.Contains(cfgErr.Message, "hermes") {
-		t.Errorf("message must name the hermes workspace; got %q", cfgErr.Message)
+	if cfgErr.Type != "hermes" {
+		t.Errorf("type = %q, want %q", cfgErr.Type, "hermes")
 	}
 }
 

cmd/config/init_messages.go

@@ -4,14 +4,10 @@
 package config
 
 import (
-	"errors"
-
 	"github.com/charmbracelet/huh"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/i18n"
-	"github.com/larksuite/cli/internal/output"
 )
 
 type initMsg struct {
@@ -101,12 +97,3 @@ func promptLangSelection() (i18n.Lang, error) {
 	}
 	return lang, nil
 }
-
-// langSelectionError maps a promptLangSelection failure to its exit surface:
-// user abort exits bare with code 1; any other failure is internal.
-func langSelectionError(err error) error {
-	if errors.Is(err, huh.ErrUserAborted) {
-		return output.ErrBare(1)
-	}
-	return errs.NewInternalError(errs.SubtypeUnknown, "language selection failed: %v", err).WithCause(err)
-}

cmd/config/init_test.go

@@ -65,8 +65,8 @@ func TestUpdateExistingProfileWithoutSecret_AppIdMismatch_EmitsValidationError(t
 
 // wrapUpdateExistingProfileErr is the caller-side classifier for the error
 // returned by updateExistingProfileWithoutSecret. It must preserve typed-error
-// exit semantics: a typed ValidationError must keep ExitValidation rather than
-// being downgraded to InternalError.
+// exit semantics (regression: typed ValidationError was being downgraded to
+// InternalError by the legacy *output.ExitError-only passthrough).
 
 func TestWrapUpdateExistingProfileErr_NilPassesThrough(t *testing.T) {
 	if got := wrapUpdateExistingProfileErr(nil); got != nil {
@@ -90,6 +90,18 @@ func TestWrapUpdateExistingProfileErr_TypedValidationErrorPreserved(t *testing.T
 	}
 }
 
+func TestWrapUpdateExistingProfileErr_LegacyExitErrorPreserved(t *testing.T) {
+	in := &output.ExitError{Code: 7, Err: errors.New("legacy")}
+	got := wrapUpdateExistingProfileErr(in)
+	var exitErr *output.ExitError
+	if !errors.As(got, &exitErr) {
+		t.Fatalf("expected *output.ExitError to pass through, got %T: %v", got, got)
+	}
+	if exitErr.Code != 7 {
+		t.Errorf("Code = %d, want 7", exitErr.Code)
+	}
+}
+
 func TestWrapUpdateExistingProfileErr_UntypedErrorBecomesInternal(t *testing.T) {
 	in := fmt.Errorf("disk full")
 	got := wrapUpdateExistingProfileErr(in)

cmd/doctor/doctor.go

@@ -14,7 +14,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -95,7 +94,7 @@ func doctorRun(opts *DoctorOptions) error {
 		// underlying problem is still visible.
 		msg, hint := err.Error(), ""
 		if errors.Is(err, os.ErrNotExist) {
-			var cfgErr *errs.ConfigError
+			var cfgErr *core.ConfigError
 			if errors.As(core.NotConfiguredError(), &cfgErr) {
 				msg, hint = cfgErr.Message, cfgErr.Hint
 			}
@@ -109,7 +108,7 @@ func doctorRun(opts *DoctorOptions) error {
 	cfg, err := f.Config()
 	if err != nil {
 		hint := ""
-		var cfgErr *errs.ConfigError
+		var cfgErr *core.ConfigError
 		if errors.As(err, &cfgErr) {
 			hint = cfgErr.Hint
 		}

cmd/error_auth_hint.go

@@ -15,6 +15,7 @@ import (
 	internalauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/shortcuts"
 	shortcutcommon "github.com/larksuite/cli/shortcuts/common"
@@ -48,6 +49,32 @@ func applyNeedAuthorizationHint(f *cmdutil.Factory, err error) {
 	authErr.Hint += "\n" + scopeHint
 }
 
+// enrichMissingScopeError appends a "current command requires scope(s): X"
+// hint to a legacy *output.ExitError when the underlying error carries the
+// need_user_authorization marker AND the current command declares scopes
+// locally.
+//
+// Deprecated: enrichment for the legacy envelope; the typed path is
+// applyNeedAuthorizationHint above.
+func enrichMissingScopeError(f *cmdutil.Factory, exitErr *output.ExitError) {
+	if exitErr == nil || exitErr.Detail == nil {
+		return
+	}
+	if !internalauth.IsNeedUserAuthorizationError(exitErr) {
+		return
+	}
+	scopes := resolveDeclaredScopesForCurrentCommand(f)
+	if len(scopes) == 0 {
+		return
+	}
+	scopeHint := fmt.Sprintf("current command requires scope(s): %s", strings.Join(scopes, ", "))
+	if exitErr.Detail.Hint == "" {
+		exitErr.Detail.Hint = scopeHint
+		return
+	}
+	exitErr.Detail.Hint += "\n" + scopeHint
+}
+
 // resolveDeclaredScopesForCurrentCommand returns the scopes declared by the
 // current command for the resolved identity, checking shortcuts first and then
 // service methods from local registry metadata.

cmd/event/consume.go

@@ -386,9 +386,9 @@ func resolveTenantToken(ctx context.Context, f *cmdutil.Factory, appID string) (
 
 // Sentinels for errors.Is checks; call sites wrap them as typed ValidationError causes.
 var (
-	errInvalidParamFormat = errors.New("invalid --param format")                    //nolint:forbidigo // sentinel, typed at call sites
-	errOutputDirTilde     = errors.New("--output-dir does not support ~ expansion") //nolint:forbidigo // sentinel, typed at call sites
-	errOutputDirUnsafe    = errors.New("unsafe --output-dir")                       //nolint:forbidigo // sentinel, typed at call sites
+	errInvalidParamFormat = errors.New("invalid --param format")
+	errOutputDirTilde     = errors.New("--output-dir does not support ~ expansion")
+	errOutputDirUnsafe    = errors.New("unsafe --output-dir")
 )
 
 func parseParams(raw []string) (map[string]string, error) {

cmd/event/format_helpers_test.go

@@ -270,15 +270,15 @@ func TestExitForOrphan(t *testing.T) {
 	if err == nil {
 		t.Fatal("flag on + orphan → expected error, got nil")
 	}
-	var exit *output.BareError
+	var exit *output.ExitError
 	if !errorAs(err, &exit) || exit.Code != output.ExitValidation {
 		t.Errorf("exit code = %v, want ExitValidation", err)
 	}
 }
 
 func errorAs(err error, target interface{}) bool {
-	if e, ok := err.(*output.BareError); ok {
-		if t, ok := target.(**output.BareError); ok {
+	if e, ok := err.(*output.ExitError); ok {
+		if t, ok := target.(**output.ExitError); ok {
 			*t = e
 			return true
 		}

cmd/event/status_fail_on_orphan_test.go

@@ -19,12 +19,12 @@ func TestExitForOrphan_Orphan(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected error when failOnOrphan=true and orphan present")
 	}
-	var bareErr *output.BareError
-	if !errors.As(err, &bareErr) {
-		t.Fatalf("expected *output.BareError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	if bareErr.Code != output.ExitValidation {
-		t.Errorf("Code = %d, want %d", bareErr.Code, output.ExitValidation)
+	if exitErr.Code != output.ExitValidation {
+		t.Errorf("Code = %d, want %d", exitErr.Code, output.ExitValidation)
 	}
 }
 

cmd/flag_suggest_test.go

@@ -5,10 +5,10 @@ package cmd
 
 import (
 	"errors"
+	"slices"
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/spf13/cobra"
 )
@@ -40,65 +40,31 @@ func TestFlagDidYouMean_UnknownFlagSuggestsAndListsValid(t *testing.T) {
 	c.Flags().Bool("dry-run", false, "")
 
 	err := flagDidYouMean(c, errors.New("unknown flag: --rang")) // typo of --range
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	if verr.Subtype != errs.SubtypeInvalidArgument {
-		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
+	if exitErr.Detail.Type != "unknown_flag" {
+		t.Errorf("type = %q, want unknown_flag", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	if !strings.Contains(exitErr.Detail.Hint, "--range") {
+		t.Errorf("hint should suggest --range, got %q", exitErr.Detail.Hint)
 	}
-	// The offending flag is carried structurally on Params (replaces the
-	// legacy detail map) and named in the message.
-	if len(verr.Params) != 1 || verr.Params[0].Name != "--rang" {
-		t.Errorf("Params = %v, want one entry named --rang", verr.Params)
-	}
-	if len(verr.Params) == 1 && verr.Params[0].Reason == "" {
-		t.Error("Params[0].Reason must explain the rejection")
-	}
-	if !strings.Contains(verr.Message, "--rang") {
-		t.Errorf("message should name the offending flag, got %q", verr.Message)
-	}
-	// The ranked candidate rides on the param as a machine-readable suggestion
-	// so an agent can retry without parsing prose.
-	if len(verr.Params) == 1 {
-		found := false
-		for _, s := range verr.Params[0].Suggestions {
-			if s == "--range" {
-				found = true
-			}
-		}
-		if !found {
-			t.Errorf("Params[0].Suggestions should include --range, got %v", verr.Params[0].Suggestions)
-		}
-	}
-	// The same candidate is also carried in the human-facing hint.
-	if !strings.Contains(verr.Hint, "--range") {
-		t.Errorf("hint should suggest --range, got %q", verr.Hint)
+	detail, _ := exitErr.Detail.Detail.(map[string]any)
+	valid, _ := detail["valid_flags"].([]string)
+	if !slices.Contains(valid, "find") || !slices.Contains(valid, "range") {
+		t.Errorf("valid_flags should list find & range, got %v", valid)
 	}
 }
 
 func TestFlagDidYouMean_OtherErrorStaysGeneric(t *testing.T) {
 	c := &cobra.Command{Use: "demo"}
 	err := flagDidYouMean(c, errors.New("flag needs an argument: --find"))
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	// Non-unknown-flag errors stay generic: invalid_argument subtype, no
-	// structured param, generic --help hint (no "did you mean" suggestion).
-	if verr.Subtype != errs.SubtypeInvalidArgument {
-		t.Errorf("subtype = %q, want invalid_argument (non-unknown-flag errors stay generic)", verr.Subtype)
-	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	if verr.Param != "" || len(verr.Params) != 0 {
-		t.Errorf("Param=%q Params=%v, want both empty for generic flag error", verr.Param, verr.Params)
-	}
-	if strings.Contains(verr.Hint, "did you mean") {
-		t.Errorf("generic flag error must not produce a did-you-mean hint, got %q", verr.Hint)
+	if exitErr.Detail.Type != "flag_error" {
+		t.Errorf("type = %q, want flag_error (non-unknown-flag errors stay generic)", exitErr.Detail.Type)
 	}
 }

cmd/platform_bootstrap_test.go

@@ -9,12 +9,10 @@ import (
 	"errors"
 	"os"
 	"path/filepath"
-	"strings"
 	"testing"
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -104,7 +102,7 @@ func findLeaf(t *testing.T, parent *cobra.Command, names ...string) *cobra.Comma
 }
 
 // Happy path: a valid policy.yml denies one specific command. The denied
-// command's RunE returns a typed error envelope; allowed commands are
+// command's RunE returns a typed ExitError envelope; allowed commands are
 // untouched.
 func TestApplyUserPolicyPruning_appliesValidPolicy(t *testing.T) {
 	cfgDir := tmpHome(t)
@@ -129,27 +127,13 @@ max_risk: write
 	if err == nil {
 		t.Fatalf("+delete-doc RunE should return an error")
 	}
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil || exitErr.Detail.Type != "command_denied" {
+		t.Fatalf("expected command_denied ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
-	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	// The denial taxonomy (reason_code, layer, rule) is preserved on the
-	// wrapped *platform.CommandDeniedError cause and folded into the hint.
-	var cd *platform.CommandDeniedError
-	if !errors.As(err, &cd) {
-		t.Fatalf("error chain should expose *platform.CommandDeniedError")
-	}
-	if cd.ReasonCode != "command_denylisted" {
-		t.Errorf("CommandDeniedError.ReasonCode = %q, want command_denylisted", cd.ReasonCode)
-	}
-	if !strings.Contains(verr.Hint, "command_denylisted") {
-		t.Errorf("hint should surface reason_code command_denylisted, got %q", verr.Hint)
+	detail, ok := exitErr.Detail.Detail.(map[string]any)
+	if !ok || detail["reason_code"] != "command_denylisted" {
+		t.Errorf("reason_code = %v, want command_denylisted", detail["reason_code"])
 	}
 
 	// im/+send must be denied (domain not in Allow).

cmd/platform_guards.go

@@ -8,9 +8,9 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/hook"
+	"github.com/larksuite/cli/internal/output"
 	internalplatform "github.com/larksuite/cli/internal/platform"
 )
 
@@ -34,8 +34,16 @@ import (
 // lands directly on their RunE, which now carries the guard.
 //
 // makeErr is called for every guarded dispatch; it must return a fresh
-// typed error each time.
-func installFatalGuard(rootCmd *cobra.Command, makeErr func() error) {
+// *output.ExitError each time (the envelope writer mutates a few fields
+// as it serialises).
+// Deprecated: installFatalGuard accepts a *output.ExitError-producing lambda,
+// which is part of the legacy error surface that predates the typed error
+// contract introduced by errs/. New code MUST NOT add new callers — the
+// platform-extension fatal-guard plumbing will switch to typed errs.* errors
+// when the platform-extension framework migrates. This wrapper is retained
+// only for the existing in-tree call sites; it will be removed once they
+// have moved to the typed surface.
+func installFatalGuard(rootCmd *cobra.Command, makeErr func() *output.ExitError) {
 	// Two cobra subcommands are injected lazily at Execute() time and
 	// would otherwise slip past walkGuard. We pre-register both so
 	// walkGuard catches them.
@@ -72,65 +80,120 @@ func installFatalGuard(rootCmd *cobra.Command, makeErr func() error) {
 }
 
 // installPluginInstallErrorGuard surfaces a FailClosed plugin install
-// failure as a typed validation error (failed_precondition) before any
-// command runs.
+// failure as a structured plugin_install envelope before any command
+// runs.
+// Deprecated: installPluginInstallErrorGuard produces a legacy
+// *output.ExitError via its internal makeErr lambda. New code MUST NOT add
+// such producers — plugin install failures should surface as a typed
+// *errs.XxxError once the platform-extension framework migrates. This
+// helper is retained only while existing call sites are migrated; it will
+// be removed once they have moved to the typed surface.
 func installPluginInstallErrorGuard(rootCmd *cobra.Command, installErr error) {
-	makeErr := func() error {
+	makeErr := func() *output.ExitError {
 		var pi *internalplatform.PluginInstallError
 		if errors.As(installErr, &pi) {
-			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", pi.Error()).
-				WithHint("plugin %q failed to install (reason_code %s); fix or remove the plugin before running commands", pi.PluginName, pi.ReasonCode).
-				WithCause(installErr)
+			return &output.ExitError{
+				Code: output.ExitValidation,
+				Detail: &output.ErrDetail{
+					Type:    "plugin_install",
+					Message: pi.Error(),
+					Detail: map[string]any{
+						"plugin":      pi.PluginName,
+						"reason_code": pi.ReasonCode,
+						"reason":      pi.Reason,
+					},
+				},
+				Err: installErr,
+			}
+		}
+		return &output.ExitError{
+			Code: output.ExitValidation,
+			Detail: &output.ErrDetail{
+				Type:    "plugin_install",
+				Message: installErr.Error(),
+				Detail: map[string]any{
+					"reason_code": internalplatform.ReasonInstallFailed,
+				},
+			},
+			Err: installErr,
 		}
-		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", installErr.Error()).
-			WithHint("a plugin failed to install (reason_code %s); fix or remove the plugin before running commands", internalplatform.ReasonInstallFailed).
-			WithCause(installErr)
 	}
 	installFatalGuard(rootCmd, makeErr)
 }
 
 // installPluginConflictGuard surfaces a Plugin.Restrict() configuration
 // error (single plugin invalid Rule or multiple plugins each contributing
-// Restrict). The hint separates the two failure modes by reason code:
+// Restrict). The design separates the envelope type:
 //
-//   - "invalid_rule"              - single bad rule
-//   - "multiple_restrict_plugins" - multiple Restrict plugins conflict
+//   - "plugin_install" with reason_code "invalid_rule"           - single bad rule
+//   - "plugin_conflict" with reason_code "multiple_restrict_plugins" - multi
 //
 // Either way the CLI must NOT silently continue with a broken policy.
+// Deprecated: installPluginConflictGuard produces a legacy *output.ExitError
+// via its internal makeErr lambda. New code MUST NOT add such producers —
+// plugin conflict failures should surface as a typed *errs.XxxError once the
+// platform-extension framework migrates. This helper is retained only while
+// existing call sites are migrated; it will be removed once they have moved
+// to the typed surface.
 func installPluginConflictGuard(rootCmd *cobra.Command, err error) {
-	makeErr := func() error {
+	makeErr := func() *output.ExitError {
+		envelopeType := "plugin_install"
 		reasonCode := internalplatform.ReasonInvalidRule
 		if errors.Is(err, cmdpolicy.ErrMultipleRestricts) {
+			envelopeType = "plugin_conflict"
 			reasonCode = internalplatform.ReasonMultipleRestricts
 		}
-		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", err.Error()).
-			WithHint("plugin policy configuration is broken (reason_code %s); fix the plugin's Restrict rule or remove the conflicting plugin", reasonCode).
-			WithCause(err)
+		return &output.ExitError{
+			Code: output.ExitValidation,
+			Detail: &output.ErrDetail{
+				Type:    envelopeType,
+				Message: err.Error(),
+				Detail: map[string]any{
+					"reason_code": reasonCode,
+				},
+			},
+			Err: err,
+		}
 	}
 	installFatalGuard(rootCmd, makeErr)
 }
 
 // installPluginLifecycleErrorGuard surfaces a Startup lifecycle handler
-// failure as a typed validation error (failed_precondition). The hint's
-// reason code splits returned-error vs panic so consumers (audit /
-// on-call) can tell the two failure modes apart.
+// failure as a plugin_lifecycle envelope. The reason_code splits
+// returned-error vs panic so consumers (audit / on-call) can tell the
+// two failure modes apart.
+// Deprecated: installPluginLifecycleErrorGuard produces a legacy
+// *output.ExitError via its internal makeErr lambda. New code MUST NOT add
+// such producers — plugin lifecycle failures should surface as a typed
+// *errs.XxxError once the platform-extension framework migrates. This
+// helper is retained only while existing call sites are migrated; it will
+// be removed once they have moved to the typed surface.
 func installPluginLifecycleErrorGuard(rootCmd *cobra.Command, err error) {
-	makeErr := func() error {
+	makeErr := func() *output.ExitError {
 		reasonCode := "lifecycle_failed"
-		hookName := ""
+		detail := map[string]any{
+			"reason_code": reasonCode,
+		}
 		var le *hook.LifecycleError
 		if errors.As(err, &le) {
 			if le.Panic {
 				reasonCode = "lifecycle_panic"
 			}
-			hookName = le.HookName
+			detail = map[string]any{
+				"reason_code": reasonCode,
+				"hook_name":   le.HookName,
+				"event":       "startup",
+			}
 		}
-		typed := errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", err.Error()).
-			WithCause(err)
-		if hookName != "" {
-			return typed.WithHint("plugin startup hook %q failed (reason_code %s); fix or remove the plugin before running commands", hookName, reasonCode)
+		return &output.ExitError{
+			Code: output.ExitValidation,
+			Detail: &output.ErrDetail{
+				Type:    "plugin_lifecycle",
+				Message: err.Error(),
+				Detail:  detail,
+			},
+			Err: err,
 		}
-		return typed.WithHint("a plugin startup hook failed (reason_code %s); fix or remove the plugin before running commands", reasonCode)
 	}
 	installFatalGuard(rootCmd, makeErr)
 }
@@ -156,7 +219,14 @@ func installPluginLifecycleErrorGuard(rootCmd *cobra.Command, err error) {
 //
 // This way the very first non-nil step in cobra's chain is always our
 // guard, regardless of which leaf the user invoked.
-func walkGuard(cmd *cobra.Command, makeErr func() error) {
+// Deprecated: walkGuard accepts a *output.ExitError-producing lambda, part
+// of the legacy error surface that predates the typed error contract
+// introduced by errs/. New code MUST NOT add new callers — the platform-
+// extension guard plumbing will switch to typed errs.* errors when the
+// platform-extension framework migrates. This wrapper is retained only for
+// the existing in-tree call sites; it will be removed once they have moved
+// to the typed surface.
+func walkGuard(cmd *cobra.Command, makeErr func() *output.ExitError) {
 	if cmd == nil {
 		return
 	}

cmd/platform_guards_test.go

@@ -6,14 +6,12 @@ package cmd
 import (
 	"context"
 	"errors"
-	"strings"
 	"sync"
 	"testing"
 	"time"
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/hook"
 	"github.com/larksuite/cli/internal/output"
@@ -34,7 +32,7 @@ func (failClosedAbortingPlugin) Install(platform.Registrar) error {
 }
 
 // When a FailClosed plugin fails to install, buildInternal must
-// install a PersistentPreRunE that returns a typed *errs.ValidationError.
+// install a PersistentPreRunE that returns a structured *output.ExitError.
 // The user must NEVER see a silent partial-install state.
 //
 // This pins the build.go fix for codex's NEW ISSUE about
@@ -95,31 +93,26 @@ func TestBuildInternal_failClosedAbortsCLI(t *testing.T) {
 	checkGuardError(t, leaf.RunE(leaf, nil))
 }
 
-// checkGuardError asserts that err is the typed validation error the
-// install guard produces: a failed_precondition *errs.ValidationError
-// (exit 2) whose message + hint preserve the plugin name and the
-// install_failed reason code (the recovery info that lived in the legacy
-// detail map).
+// checkGuardError asserts that err is the structured plugin_install
+// ExitError the guard produces.
 func checkGuardError(t *testing.T, err error) {
 	t.Helper()
 	if err == nil {
 		t.Fatalf("PersistentPreRunE must surface the install error, got nil")
 	}
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if exitErr.Detail.Type != "plugin_install" {
+		t.Errorf("envelope type = %q, want plugin_install", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	detail := exitErr.Detail.Detail.(map[string]any)
+	if detail["plugin"] != "policy" {
+		t.Errorf("detail.plugin = %v, want policy", detail["plugin"])
 	}
-	if !strings.Contains(verr.Hint, "policy") {
-		t.Errorf("hint should name the failing plugin %q, got %q", "policy", verr.Hint)
-	}
-	if !strings.Contains(verr.Hint, internalplatform.ReasonInstallFailed) {
-		t.Errorf("hint should surface reason_code %q, got %q", internalplatform.ReasonInstallFailed, verr.Hint)
+	if detail["reason_code"] != internalplatform.ReasonInstallFailed {
+		t.Errorf("detail.reason_code = %v, want install_failed", detail["reason_code"])
 	}
 }
 

cmd/plugin_integration_test.go

@@ -8,13 +8,11 @@ import (
 	"errors"
 	"os"
 	"path/filepath"
-	"strings"
 	"sync/atomic"
 	"testing"
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -158,23 +156,19 @@ func TestPluginPipeline_wrapAbortReachesEnvelope(t *testing.T) {
 	}
 
 	err = leaf.RunE(leaf, nil)
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if exitErr.Detail.Type != "hook" {
+		t.Errorf("envelope type = %q, want hook", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	detail := exitErr.Detail.Detail.(map[string]any)
+	if detail["reason_code"] != "aborted" {
+		t.Errorf("detail.reason_code = %v, want aborted", detail["reason_code"])
 	}
-	// The namespaced hook name and the abort semantics are preserved in the
-	// message so a caller can identify which plugin hook rejected the call.
-	if !strings.Contains(verr.Message, "policy-plugin.policy") {
-		t.Errorf("message should name the aborting hook policy-plugin.policy, got %q", verr.Message)
-	}
-	if !strings.Contains(verr.Message, "aborted") {
-		t.Errorf("message should describe the abort, got %q", verr.Message)
+	if detail["hook_name"] != "policy-plugin.policy" {
+		t.Errorf("detail.hook_name = %v, want policy-plugin.policy", detail["hook_name"])
 	}
 
 	// errors.As must still reach the original AbortError so consumers
@@ -415,20 +409,15 @@ func TestPluginConflictGuard_MultipleRestrictAbortsCLI(t *testing.T) {
 		t.Fatalf("no runnable leaf in command tree")
 	}
 	err := leaf.RunE(leaf, nil)
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if exitErr.Detail.Type != "plugin_conflict" {
+		t.Errorf("envelope type = %q, want plugin_conflict", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	// reason_code multiple_restrict_plugins is folded into the hint so the
-	// operator can distinguish a multi-Restrict conflict from a bad rule.
-	if !strings.Contains(verr.Hint, "multiple_restrict_plugins") {
-		t.Errorf("hint should surface reason_code multiple_restrict_plugins, got %q", verr.Hint)
+	if rc := exitErr.Detail.Detail.(map[string]any)["reason_code"]; rc != "multiple_restrict_plugins" {
+		t.Errorf("reason_code = %v, want multiple_restrict_plugins", rc)
 	}
 }
 
@@ -458,20 +447,15 @@ func TestPluginConflictGuard_InvalidRuleAbortsCLI(t *testing.T) {
 		t.Fatalf("no runnable leaf in command tree")
 	}
 	err := leaf.RunE(leaf, nil)
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if exitErr.Detail.Type != "plugin_install" {
+		t.Errorf("envelope type = %q, want plugin_install", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	// reason_code invalid_rule is folded into the hint, distinct from the
-	// multiple_restrict_plugins conflict path.
-	if !strings.Contains(verr.Hint, "invalid_rule") {
-		t.Errorf("hint should surface reason_code invalid_rule, got %q", verr.Hint)
+	if rc := exitErr.Detail.Detail.(map[string]any)["reason_code"]; rc != "invalid_rule" {
+		t.Errorf("reason_code = %v, want invalid_rule", rc)
 	}
 }
 
@@ -500,24 +484,19 @@ func TestPluginLifecycleGuard_StartupErrorAbortsCLI(t *testing.T) {
 
 	leaf := findRunnableLeaf(root)
 	err := leaf.RunE(leaf, nil)
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if exitErr.Detail.Type != "plugin_lifecycle" {
+		t.Errorf("envelope type = %q, want plugin_lifecycle", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	d := exitErr.Detail.Detail.(map[string]any)
+	if d["reason_code"] != "lifecycle_failed" {
+		t.Errorf("reason_code = %v, want lifecycle_failed", d["reason_code"])
 	}
-	// reason_code lifecycle_failed (vs lifecycle_panic) and the failing
-	// hook name are folded into the hint so audit / on-call can tell the
-	// failure mode and which hook failed.
-	if !strings.Contains(verr.Hint, "lifecycle_failed") {
-		t.Errorf("hint should surface reason_code lifecycle_failed, got %q", verr.Hint)
-	}
-	if !strings.Contains(verr.Hint, "lc.start") {
-		t.Errorf("hint should name the failing hook lc.start, got %q", verr.Hint)
+	if d["hook_name"] != "lc.start" {
+		t.Errorf("hook_name = %v, want lc.start", d["hook_name"])
 	}
 }
 
@@ -541,20 +520,12 @@ func TestPluginLifecycleGuard_StartupPanicAbortsCLI(t *testing.T) {
 	}
 	leaf := findRunnableLeaf(root)
 	err := leaf.RunE(leaf, nil)
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
-	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	// A panicking startup hook is distinguished from a returned error by
-	// reason_code lifecycle_panic in the hint.
-	if !strings.Contains(verr.Hint, "lifecycle_panic") {
-		t.Errorf("hint should surface reason_code lifecycle_panic, got %q", verr.Hint)
+	if rc := exitErr.Detail.Detail.(map[string]any)["reason_code"]; rc != "lifecycle_panic" {
+		t.Errorf("reason_code = %v, want lifecycle_panic", rc)
 	}
 }
 
@@ -608,24 +579,19 @@ func TestWrapperPanic_BecomesHookPanicEnvelope(t *testing.T) {
 	}()
 
 	err = leaf.RunE(leaf, nil)
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if exitErr.Detail.Type != "hook" {
+		t.Errorf("envelope type = %q, want hook", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	d := exitErr.Detail.Detail.(map[string]any)
+	if d["reason_code"] != "panic" {
+		t.Errorf("reason_code = %v, want panic", d["reason_code"])
 	}
-	// The recovered panic surfaces as a structured error naming the
-	// namespaced hook (p.boom) and describing the panic, so the process
-	// never crashes and the caller can attribute the failure.
-	if !strings.Contains(verr.Message, "p.boom") {
-		t.Errorf("message should name the namespaced hook p.boom, got %q", verr.Message)
-	}
-	if !strings.Contains(verr.Message, "panic") {
-		t.Errorf("message should describe the panic, got %q", verr.Message)
+	if d["hook_name"] != "p.boom" {
+		t.Errorf("hook_name = %v, want p.boom (namespaced)", d["hook_name"])
 	}
 }
 
@@ -687,24 +653,19 @@ func TestWrapperFactoryPanic_BecomesHookPanicEnvelope(t *testing.T) {
 	}()
 
 	err = leaf.RunE(leaf, nil)
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if exitErr.Detail.Type != "hook" {
+		t.Errorf("envelope type = %q, want hook", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	d := exitErr.Detail.Detail.(map[string]any)
+	if d["reason_code"] != "panic" {
+		t.Errorf("reason_code = %v, want panic", d["reason_code"])
 	}
-	// A panic in the wrapper FACTORY (not just the inner handler) is
-	// recovered into the same structured panic error, naming the
-	// namespaced hook fac.bad-factory.
-	if !strings.Contains(verr.Message, "fac.bad-factory") {
-		t.Errorf("message should name the namespaced hook fac.bad-factory, got %q", verr.Message)
-	}
-	if !strings.Contains(verr.Message, "panic") {
-		t.Errorf("message should describe the panic, got %q", verr.Message)
+	if d["hook_name"] != "fac.bad-factory" {
+		t.Errorf("hook_name = %v, want fac.bad-factory (namespaced)", d["hook_name"])
 	}
 }
 

cmd/profile/add.go

@@ -12,7 +12,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/i18n"
@@ -54,9 +53,7 @@ func NewCmdProfileAdd(f *cmdutil.Factory) *cobra.Command {
 
 func profileAddRun(f *cmdutil.Factory, name, appID string, appSecretStdin bool, brand, lang string, useAfter bool) error {
 	if err := core.ValidateProfileName(name); err != nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%v", err).
-			WithCause(err).
-			WithParam("--name")
+		return output.ErrValidation("%v", err)
 	}
 
 	langPref, err := cmdutil.ParseLangFlag(lang)
@@ -67,57 +64,46 @@ func profileAddRun(f *cmdutil.Factory, name, appID string, appSecretStdin bool,
 
 	// Read secret from stdin
 	if !appSecretStdin {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "app secret must be provided via stdin").
-			WithHint("use --app-secret-stdin and pipe the secret").
-			WithParam("--app-secret-stdin")
+		return output.ErrValidation("app secret must be provided via stdin: use --app-secret-stdin and pipe the secret")
 	}
 	scanner := bufio.NewScanner(f.IOStreams.In)
 	if !scanner.Scan() {
 		if err := scanner.Err(); err != nil {
-			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "failed to read secret from stdin: %v", err).
-				WithCause(err).
-				WithParam("--app-secret-stdin")
+			return output.ErrValidation("failed to read secret from stdin: %v", err)
 		}
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "stdin is empty, expected app secret").
-			WithHint("pipe the app secret to stdin").
-			WithParam("--app-secret-stdin")
+		return output.ErrValidation("stdin is empty, expected app secret")
 	}
 	appSecret := strings.TrimSpace(scanner.Text())
 	if appSecret == "" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "app secret read from stdin is empty").
-			WithHint("pipe a non-empty app secret to stdin").
-			WithParam("--app-secret-stdin")
+		return output.ErrValidation("app secret read from stdin is empty")
 	}
 
 	// Load or create config
 	multi, err := core.LoadMultiAppConfig()
 	if err != nil {
 		if !errors.Is(err, os.ErrNotExist) {
-			return errs.NewInternalError(errs.SubtypeFileIO, "failed to load config: %v", err).WithCause(err)
+			return output.Errorf(output.ExitInternal, "internal", "failed to load config: %v", err)
 		}
 		multi = &core.MultiAppConfig{}
 	}
 
 	// Check name uniqueness
 	if multi.FindApp(name) != nil {
-		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "profile %q already exists", name).
-			WithHint("choose a different name, or remove the existing profile first").
-			WithParam("--name")
+		return output.ErrValidation("profile %q already exists", name)
 	}
 
 	// Check app-id uniqueness — keychain stores secrets by appId, so
 	// multiple profiles sharing the same appId would collide on credentials.
 	for _, a := range multi.Apps {
 		if a.AppId == appID {
-			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "app-id %q is already used by profile %q; each profile must have a unique app-id", appID, a.ProfileName()).
-				WithParam("--app-id")
+			return output.ErrValidation("app-id %q is already used by profile %q; each profile must have a unique app-id", appID, a.ProfileName())
 		}
 	}
 
 	// Store secret securely
 	secret, err := core.ForStorage(appID, core.PlainSecret(appSecret), f.Keychain)
 	if err != nil {
-		return errs.NewInternalError(errs.SubtypeStorage, "%v", err).WithCause(err)
+		return output.Errorf(output.ExitInternal, "internal", "%v", err)
 	}
 
 	parsedBrand := core.ParseBrand(brand)
@@ -148,7 +134,7 @@ func profileAddRun(f *cmdutil.Factory, name, appID string, appSecretStdin bool,
 	}
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
 	}
 
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Profile %q added (%s, %s)", name, appID, parsedBrand))

cmd/profile/list.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	larkauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -46,7 +45,7 @@ func profileListRun(f *cmdutil.Factory) error {
 			output.PrintJson(f.IOStreams.Out, []profileListItem{})
 			return nil
 		}
-		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "failed to load config: %v", err).WithCause(err)
+		return output.Errorf(output.ExitValidation, "config", "failed to load config: %v", err)
 	}
 	if multi == nil || len(multi.Apps) == 0 {
 		output.PrintJson(f.IOStreams.Out, []profileListItem{})

cmd/profile/profile_test.go

@@ -11,7 +11,6 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/i18n"
@@ -51,16 +50,6 @@ func TestProfileAddRun_InvalidExistingConfigReturnsError(t *testing.T) {
 	if !strings.Contains(err.Error(), "failed to load config") {
 		t.Fatalf("error = %v, want failed to load config", err)
 	}
-	var internalErr *errs.InternalError
-	if !errors.As(err, &internalErr) {
-		t.Fatalf("error type = %T, want *errs.InternalError; err=%v", err, err)
-	}
-	if internalErr.Subtype != errs.SubtypeFileIO {
-		t.Fatalf("subtype = %q, want %q", internalErr.Subtype, errs.SubtypeFileIO)
-	}
-	if code := output.ExitCodeOf(err); code != output.ExitInternal {
-		t.Fatalf("exit code = %d, want %d (ExitInternal)", code, output.ExitInternal)
-	}
 }
 
 // TestProfileAddRun_Lang covers the unified --lang contract on profile add:
@@ -106,9 +95,9 @@ func TestProfileAddRun_Lang(t *testing.T) {
 		if err == nil {
 			t.Fatal("expected validation error for --lang ZH, got nil")
 		}
-		var valErr *errs.ValidationError
-		if !errors.As(err, &valErr) || output.ExitCodeOf(err) != output.ExitValidation {
-			t.Fatalf("expected typed validation error with ExitValidation, got %T: %v", err, err)
+		exitErr, ok := err.(*output.ExitError)
+		if !ok || exitErr.Code != output.ExitValidation {
+			t.Fatalf("expected ExitValidation, got %T: %v", err, err)
 		}
 	})
 }
@@ -417,226 +406,17 @@ func TestProfileUseRun_SaveFailureReturnsStructuredError(t *testing.T) {
 func assertInternalExitError(t *testing.T, err error, wantMsg string) {
 	t.Helper()
 
-	var internalErr *errs.InternalError
-	if !errors.As(err, &internalErr) {
-		t.Fatalf("error type = %T, want *errs.InternalError; err=%v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("error type = %T, want *output.ExitError; err=%v", err, err)
 	}
-	if internalErr.Subtype != errs.SubtypeStorage {
-		t.Fatalf("subtype = %q, want %q", internalErr.Subtype, errs.SubtypeStorage)
+	if exitErr.Code != output.ExitInternal {
+		t.Fatalf("exit code = %d, want %d", exitErr.Code, output.ExitInternal)
 	}
-	if internalErr.Cause == nil {
-		t.Fatalf("cause = nil, want wrapped underlying error")
+	if exitErr.Detail == nil || exitErr.Detail.Type != "internal" {
+		t.Fatalf("detail = %#v, want internal detail", exitErr.Detail)
 	}
-	if !strings.Contains(internalErr.Message, wantMsg) {
-		t.Fatalf("message = %q, want contains %q", internalErr.Message, wantMsg)
-	}
-	if code := output.ExitCodeOf(err); code != output.ExitInternal {
-		t.Fatalf("exit code = %d, want %d (ExitInternal)", code, output.ExitInternal)
-	}
-}
-
-// assertValidationError asserts err is a typed *errs.ValidationError with the
-// given subtype, message fragment, and exit code 2.
-func assertValidationError(t *testing.T, err error, wantSubtype errs.Subtype, wantMsg string) *errs.ValidationError {
-	t.Helper()
-
-	if err == nil {
-		t.Fatal("expected error, got nil")
-	}
-	var valErr *errs.ValidationError
-	if !errors.As(err, &valErr) {
-		t.Fatalf("error type = %T, want *errs.ValidationError; err=%v", err, err)
-	}
-	if valErr.Subtype != wantSubtype {
-		t.Fatalf("subtype = %q, want %q", valErr.Subtype, wantSubtype)
-	}
-	if !strings.Contains(valErr.Message, wantMsg) {
-		t.Fatalf("message = %q, want contains %q", valErr.Message, wantMsg)
-	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Fatalf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	return valErr
-}
-
-func saveTwoProfiles(t *testing.T) {
-	t.Helper()
-	multi := &core.MultiAppConfig{
-		CurrentApp: "default",
-		Apps: []core.AppConfig{
-			{Name: "default", AppId: "app-default", AppSecret: core.PlainSecret("secret-default"), Brand: core.BrandFeishu},
-			{Name: "target", AppId: "app-target", AppSecret: core.PlainSecret("secret-target"), Brand: core.BrandLark},
-		},
-	}
-	if err := core.SaveMultiAppConfig(multi); err != nil {
-		t.Fatalf("SaveMultiAppConfig() error = %v", err)
-	}
-}
-
-func TestProfileAddRun_ValidationErrors(t *testing.T) {
-	t.Run("invalid profile name", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		f.IOStreams.In = strings.NewReader("secret\n")
-		err := profileAddRun(f, "bad name!", "app-x", true, "feishu", "", false)
-		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "")
-		if valErr.Param != "--name" {
-			t.Fatalf("param = %q, want %q", valErr.Param, "--name")
-		}
-		if valErr.Cause == nil {
-			t.Fatal("cause = nil, want wrapped validation error")
-		}
-	})
-
-	t.Run("missing app-secret-stdin flag", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileAddRun(f, "p", "app-x", false, "feishu", "", false)
-		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "app secret must be provided via stdin")
-		if valErr.Param != "--app-secret-stdin" {
-			t.Fatalf("param = %q, want %q", valErr.Param, "--app-secret-stdin")
-		}
-		if valErr.Hint == "" {
-			t.Fatal("hint is empty, want actionable hint")
-		}
-	})
-
-	t.Run("empty stdin", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		f.IOStreams.In = strings.NewReader("")
-		err := profileAddRun(f, "p", "app-x", true, "feishu", "", false)
-		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "stdin is empty")
-		if valErr.Param != "--app-secret-stdin" {
-			t.Fatalf("param = %q, want %q", valErr.Param, "--app-secret-stdin")
-		}
-	})
-
-	t.Run("blank secret on stdin", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		f.IOStreams.In = strings.NewReader("   \n")
-		err := profileAddRun(f, "p", "app-x", true, "feishu", "", false)
-		assertValidationError(t, err, errs.SubtypeInvalidArgument, "app secret read from stdin is empty")
-	})
-
-	t.Run("duplicate profile name", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		f.IOStreams.In = strings.NewReader("secret\n")
-		err := profileAddRun(f, "default", "app-new", true, "feishu", "", false)
-		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, `profile "default" already exists`)
-		if valErr.Param != "--name" {
-			t.Fatalf("param = %q, want %q", valErr.Param, "--name")
-		}
-	})
-
-	t.Run("duplicate app-id", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		f.IOStreams.In = strings.NewReader("secret\n")
-		err := profileAddRun(f, "fresh", "app-default", true, "feishu", "", false)
-		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "already used by profile")
-		if valErr.Param != "--app-id" {
-			t.Fatalf("param = %q, want %q", valErr.Param, "--app-id")
-		}
-	})
-}
-
-func TestProfileUseRun_ValidationErrors(t *testing.T) {
-	t.Run("no previous profile for toggle", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileUseRun(f, "-")
-		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "no previous profile to switch back to")
-		if valErr.Hint == "" {
-			t.Fatal("hint is empty, want actionable hint")
-		}
-	})
-
-	t.Run("profile not found", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileUseRun(f, "ghost")
-		assertValidationError(t, err, errs.SubtypeInvalidArgument, `profile "ghost" not found`)
-	})
-}
-
-func TestProfileRenameRun_ValidationErrors(t *testing.T) {
-	t.Run("invalid new name", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileRenameRun(f, "default", "bad name!")
-		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "")
-		if valErr.Cause == nil {
-			t.Fatal("cause = nil, want wrapped validation error")
-		}
-	})
-
-	t.Run("old profile not found", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileRenameRun(f, "ghost", "fresh")
-		assertValidationError(t, err, errs.SubtypeInvalidArgument, `profile "ghost" not found`)
-	})
-
-	t.Run("new name already exists", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileRenameRun(f, "default", "target")
-		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, `profile "target" already exists`)
-		if valErr.Hint == "" {
-			t.Fatal("hint is empty, want actionable hint")
-		}
-	})
-}
-
-func TestProfileRemoveRun_ValidationErrors(t *testing.T) {
-	t.Run("profile not found", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		saveTwoProfiles(t)
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileRemoveRun(f, "ghost")
-		assertValidationError(t, err, errs.SubtypeInvalidArgument, `profile "ghost" not found`)
-	})
-
-	t.Run("cannot remove the only profile", func(t *testing.T) {
-		setupProfileConfigDir(t)
-		multi := &core.MultiAppConfig{
-			CurrentApp: "solo",
-			Apps: []core.AppConfig{
-				{Name: "solo", AppId: "app-solo", AppSecret: core.PlainSecret("secret-solo"), Brand: core.BrandFeishu},
-			},
-		}
-		if err := core.SaveMultiAppConfig(multi); err != nil {
-			t.Fatalf("SaveMultiAppConfig() error = %v", err)
-		}
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		err := profileRemoveRun(f, "solo")
-		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "cannot remove the only profile")
-		if valErr.Hint == "" {
-			t.Fatal("hint is empty, want actionable hint")
-		}
-	})
-}
-
-func TestProfileListRun_InvalidConfigReturnsValidationError(t *testing.T) {
-	dir := setupProfileConfigDir(t)
-	if err := os.WriteFile(filepath.Join(dir, "config.json"), []byte("{invalid json"), 0600); err != nil {
-		t.Fatalf("WriteFile() error = %v", err)
-	}
-
-	f, _, _, _ := cmdutil.TestFactory(t, nil)
-	err := profileListRun(f)
-	valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "failed to load config")
-	if valErr.Cause == nil {
-		t.Fatal("cause = nil, want wrapped load error")
+	if !strings.Contains(exitErr.Detail.Message, wantMsg) {
+		t.Fatalf("message = %q, want contains %q", exitErr.Detail.Message, wantMsg)
 	}
 }

cmd/profile/remove.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	larkauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -41,12 +40,11 @@ func profileRemoveRun(f *cmdutil.Factory, name string) error {
 
 	idx := multi.FindAppIndex(name)
 	if idx < 0 {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
+		return output.ErrValidation("profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
 	}
 
 	if len(multi.Apps) == 1 {
-		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "cannot remove the only profile").
-			WithHint("add another profile first: lark-cli profile add")
+		return output.ErrValidation("cannot remove the only profile")
 	}
 
 	app := &multi.Apps[idx]
@@ -67,7 +65,7 @@ func profileRemoveRun(f *cmdutil.Factory, name string) error {
 	}
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
 	}
 
 	// Best-effort credential cleanup after config commit

cmd/profile/rename.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
@@ -31,7 +30,7 @@ func NewCmdProfileRename(f *cmdutil.Factory) *cobra.Command {
 
 func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 	if err := core.ValidateProfileName(newName); err != nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%v", err).WithCause(err)
+		return output.ErrValidation("%v", err)
 	}
 
 	multi, err := core.LoadOrNotConfigured()
@@ -41,7 +40,7 @@ func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 
 	idx := multi.FindAppIndex(oldName)
 	if idx < 0 {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "profile %q not found, available profiles: %s", oldName, strings.Join(multi.ProfileNames(), ", "))
+		return output.ErrValidation("profile %q not found, available profiles: %s", oldName, strings.Join(multi.ProfileNames(), ", "))
 	}
 
 	// Check new name uniqueness across other profiles, allowing renames to this
@@ -51,8 +50,7 @@ func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 			continue
 		}
 		if multi.Apps[i].Name == newName || multi.Apps[i].AppId == newName {
-			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "profile %q already exists", newName).
-				WithHint("choose a different name")
+			return output.ErrValidation("profile %q already exists", newName)
 		}
 	}
 
@@ -68,7 +66,7 @@ func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 	}
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
 	}
 
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Profile renamed: %q -> %q", oldProfileName, newName))

cmd/profile/use.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
@@ -41,15 +40,14 @@ func profileUseRun(f *cmdutil.Factory, name string) error {
 	// Handle "-" for toggle-back
 	if name == "-" {
 		if multi.PreviousApp == "" {
-			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "no previous profile to switch back to").
-				WithHint("switch to a profile by name first: lark-cli profile use <name>")
+			return output.ErrValidation("no previous profile to switch back to")
 		}
 		name = multi.PreviousApp
 	}
 
 	app := multi.FindApp(name)
 	if app == nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
+		return output.ErrValidation("profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
 	}
 
 	targetName := app.ProfileName()
@@ -68,7 +66,7 @@ func profileUseRun(f *cmdutil.Factory, name string) error {
 	multi.CurrentApp = targetName
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
 	}
 
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Switched to profile %q (%s, %s)", targetName, app.AppId, app.Brand))

cmd/prune.go

@@ -9,10 +9,10 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/output"
 )
 
 // pruneForStrictMode removes commands incompatible with the active strict mode.
@@ -65,10 +65,10 @@ func strictModeStubFrom(child *cobra.Command, mode core.StrictMode) *cobra.Comma
 	//     pick auth's instead of our denial. A leaf-level no-op makes
 	//     cobra stop here and proceed to the wrapped RunE.
 	//
-	// strict-mode keeps its short Message + independent Hint and wraps
-	// the CommandDeniedError as the Cause by hand; BuildDenialError
-	// would override Message with the CommandDeniedError.Error() long
-	// form.
+	// strict-mode keeps its short Message + independent Hint and
+	// composes the shared detail.* / wrapped-CommandDeniedError shape
+	// by hand; BuildDenialError would override Message with the
+	// CommandDeniedError.Error() long form.
 	stubMessage := fmt.Sprintf(
 		"strict mode is %q, only %s-identity commands are available",
 		mode, mode.ForcedIdentity())
@@ -105,9 +105,20 @@ func strictModeStubFrom(child *cobra.Command, mode core.StrictMode) *cobra.Comma
 		},
 		RunE: func(c *cobra.Command, _ []string) error {
 			cd := cmdpolicy.CommandDeniedFromDenial(cmdpolicy.CanonicalPath(c), denial)
-			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", stubMessage).
-				WithHint("denied by %s policy (reason_code %s); %s", cd.Layer, cd.ReasonCode, stubHint).
-				WithCause(cd)
+			// Legacy *output.ExitError producer: this literal predates the
+			// typed error contract introduced by errs/. New denial sites MUST
+			// NOT construct *output.ExitError directly — they should return a
+			// typed *errs.XxxError once the cmdpolicy framework migrates.
+			return &output.ExitError{
+				Code: output.ExitValidation,
+				Detail: &output.ErrDetail{
+					Type:    "command_denied",
+					Message: stubMessage,
+					Hint:    stubHint,
+					Detail:  cmdpolicy.DenialDetailMap(cd),
+				},
+				Err: cd,
+			}
 		},
 	}
 }

cmd/prune_test.go

@@ -8,7 +8,6 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -248,12 +247,9 @@ func TestStrictModeStub_BypassesArgsValidator(t *testing.T) {
 	}
 }
 
-// Pins the strict-mode typed envelope: a failed_precondition
-// *errs.ValidationError (exit 2) carrying the short historical Message,
-// a Hint that still surfaces the policy layer + reason code (the
-// safety-critical recovery info that lived in the legacy detail map),
-// and the wrapped *platform.CommandDeniedError so external agents can
-// still inspect the structured denial taxonomy via errors.As.
+// Pins the strict-mode envelope shape: structured detail.* / wrapped
+// CommandDeniedError for external agents, AND the historical short
+// Message + independent Hint for existing consumers.
 func TestStrictModeStub_StructuredEnvelope(t *testing.T) {
 	root := newTestTree()
 	pruneForStrictMode(root, core.StrictModeBot)
@@ -266,33 +262,30 @@ func TestStrictModeStub_StructuredEnvelope(t *testing.T) {
 		t.Fatalf("strict-mode stub RunE should return error")
 	}
 
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("err is not *errs.ValidationError: %T", err)
+	var ee *output.ExitError
+	if !errors.As(err, &ee) {
+		t.Fatalf("err is not *output.ExitError: %T", err)
 	}
-	if verr.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	if ee.Detail == nil {
+		t.Fatalf("ExitError.Detail is nil; envelope writer cannot emit JSON")
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	if ee.Detail.Type != "command_denied" {
+		t.Errorf("Detail.Type = %q, want command_denied", ee.Detail.Type)
 	}
-	// Short historical Message is preserved verbatim.
-	if verr.Message != `strict mode is "bot", only bot-identity commands are available` {
-		t.Errorf("Message = %q, want short historical form", verr.Message)
+	dm, ok := ee.Detail.Detail.(map[string]any)
+	if !ok {
+		t.Fatalf("Detail.Detail = %T, want map[string]any", ee.Detail.Detail)
 	}
-	// The denial layer + reason code remain user-readable in the hint, and
-	// the historical switch-policy guidance is still appended.
-	if !strings.Contains(verr.Hint, cmdpolicy.LayerStrictMode) {
-		t.Errorf("Hint = %q, want substring %q (policy layer)", verr.Hint, cmdpolicy.LayerStrictMode)
+	if got, _ := dm["layer"].(string); got != cmdpolicy.LayerStrictMode {
+		t.Errorf("Detail.Detail[layer] = %q, want %q", got, cmdpolicy.LayerStrictMode)
 	}
-	if !strings.Contains(verr.Hint, "identity_not_supported") {
-		t.Errorf("Hint = %q, want substring identity_not_supported (reason code)", verr.Hint)
+	if got, _ := dm["reason_code"].(string); got != "identity_not_supported" {
+		t.Errorf("Detail.Detail[reason_code] = %q, want identity_not_supported", got)
 	}
-	if !strings.Contains(verr.Hint, "if the user explicitly wants to switch policy") {
-		t.Errorf("Hint = %q, want historical switch-policy guidance", verr.Hint)
+	if got, _ := dm["policy_source"].(string); got != "strict-mode" {
+		t.Errorf("Detail.Detail[policy_source] = %q, want strict-mode", got)
 	}
 
-	// The structured denial taxonomy survives on the wrapped cause.
 	var cd *platform.CommandDeniedError
 	if !errors.As(err, &cd) {
 		t.Fatalf("err does not unwrap to *platform.CommandDeniedError")
@@ -303,12 +296,15 @@ func TestStrictModeStub_StructuredEnvelope(t *testing.T) {
 	if cd.ReasonCode != "identity_not_supported" {
 		t.Errorf("CommandDeniedError.ReasonCode = %q, want identity_not_supported", cd.ReasonCode)
 	}
-	if cd.PolicySource != "strict-mode" {
-		t.Errorf("CommandDeniedError.PolicySource = %q, want strict-mode", cd.PolicySource)
-	}
 	if !strings.Contains(cd.Reason, `strict mode is "bot"`) {
 		t.Errorf("CommandDeniedError.Reason = %q, want substring 'strict mode is \"bot\"'", cd.Reason)
 	}
+	if ee.Detail.Message != `strict mode is "bot", only bot-identity commands are available` {
+		t.Errorf("Detail.Message = %q, want short historical form", ee.Detail.Message)
+	}
+	if !strings.HasPrefix(ee.Detail.Hint, "if the user explicitly wants to switch policy") {
+		t.Errorf("Detail.Hint = %q, want historical hint", ee.Detail.Hint)
+	}
 }
 
 // strictModeStubFrom must write the denial annotations so the hook

cmd/root.go

@@ -13,12 +13,17 @@ import (
 
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
+	internalauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/deprecation"
+	"github.com/larksuite/cli/internal/errclass"
+	"github.com/larksuite/cli/internal/errcompat"
 	"github.com/larksuite/cli/internal/hook"
 	"github.com/larksuite/cli/internal/output"
+	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/internal/skillscheck"
 	"github.com/larksuite/cli/internal/suggest"
 	"github.com/larksuite/cli/internal/update"
@@ -212,37 +217,56 @@ func configureFlagCompletions(args []string) {
 // and returns the process exit code.
 //
 // Dispatch order:
-//  1. Typed errors from errs/ (e.g. *errs.PermissionError, *errs.APIError,
-//     *errs.SecurityPolicyError, *errs.AuthenticationError, *errs.ConfigError):
-//     render via the typed envelope writer, which lifts extension fields
-//     (missing_scopes, console_url, challenge_url, ...) to the top level.
-//     Routed by errs.CategoryOf via ExitCodeOf. Auth and config errors are
-//     constructed typed at their origin (internal/auth, internal/core), so the
-//     dispatcher no longer promotes any legacy shape here.
-//  2. PartialFailure / BareError signals: the result envelope is already on
-//     stdout; honor the exit code and write nothing to stderr.
-//  3. Residual cobra usage errors (missing required flag, unknown command,
-//     argument validation): typed as an invalid_argument envelope (exit 2),
-//     matching the explicit flag/subcommand guards. Flag parse errors are
-//     already typed upstream by the root FlagErrorFunc.
+//  1. Legacy shapes (*core.ConfigError, *internalauth.NeedAuthorizationError)
+//     are promoted via errcompat to their typed errs/ counterparts, with the
+//     original preserved in the Cause chain.
+//  2. Typed errors from errs/ (e.g. *errs.PermissionError, *errs.APIError,
+//     *errs.SecurityPolicyError, *errs.AuthenticationError): render via the
+//     typed envelope writer, which lifts extension fields (missing_scopes,
+//     console_url, challenge_url, ...) to the top level. Routed by
+//     errs.CategoryOf via ExitCodeOf.
+//  3. Legacy *output.ExitError: asExitError adapts it to the legacy
+//     envelope, written via WriteErrorEnvelope.
+//  4. Cobra errors (required flags, unknown commands, etc.): plain text.
 func handleRootError(f *cmdutil.Factory, err error) int {
 	errOut := f.IOStreams.ErrOut
 
+	// Promote legacy error shapes into typed errs/ before envelope marshal.
+	// NeedAuthorizationError check is first because it is the more specific
+	// shape; *core.ConfigError check follows. errors.As preserves the original
+	// in the Cause chain, so external errors.As(&core.ConfigError{}) consumers
+	// (cmd/auth/list.go, cmd/doctor/doctor.go, ...) still match.
+	//
+	// Outer-typed short-circuit: if err is already a typed *errs.* error,
+	// skip PromoteXxxError so the producer's Subtype / Hint / extension
+	// fields are not overwritten by a coarser promoted shape derived from a
+	// legacy error buried in its Cause chain. Promotion is only for legacy
+	// untyped entry points.
+	if !isOuterTypedError(err) {
+		var needAuthErr *internalauth.NeedAuthorizationError
+		if errors.As(err, &needAuthErr) {
+			err = errcompat.PromoteAuthError(needAuthErr)
+		} else {
+			var cfgErr *core.ConfigError
+			if errors.As(err, &cfgErr) {
+				err = errcompat.PromoteConfigError(cfgErr)
+			}
+		}
+	}
+
 	// When the typed error is a need_user_authorization signal, fold in the
 	// current command's declared scopes as a Hint so the user/AI sees the
 	// concrete scope(s) to re-auth with. The hint is computed on the fly from
 	// local shortcut/service metadata — it never depends on server state.
-	if !errs.IsRaw(err) {
-		applyNeedAuthorizationHint(f, err)
-	}
+	applyNeedAuthorizationHint(f, err)
 
 	// Staged dispatch: capture the typed exit code BEFORE attempting the
 	// envelope write. WriteTypedErrorEnvelope is best-effort on the wire
 	// (partial-write still returns true) so the exit code we read here is
 	// preserved even if stderr is torn — torn stderr must not downgrade
-	// typed exits 3/4/6/10 to the plain "Error:" path with exit 1.
+	// typed exits 3/4/6/10 to the legacy "Error:" path with exit 1.
 	// WriteTypedErrorEnvelope still returns false when err carries no
-	// Problem; in that case we fall through to the signal / plain-text paths.
+	// Problem; in that case we fall through to the legacy bridge below.
 	typedExit := output.ExitCodeOf(err)
 	if output.WriteTypedErrorEnvelope(errOut, err, string(f.ResolvedIdentity)) {
 		return typedExit
@@ -255,63 +279,58 @@ func handleRootError(f *cmdutil.Factory, err error) int {
 		return pfErr.Code
 	}
 
-	// Silent-exit signal (e.g. `auth check` predicate, or `update --json`):
-	// stdout already carries the result; honor the requested exit code and
-	// write nothing to stderr.
-	var bareErr *output.BareError
-	if errors.As(err, &bareErr) {
-		return bareErr.Code
-	}
-
-	// Errors reaching here are untyped: every RunE returns a typed errs.* error
-	// and flag-parse errors are typed by the root FlagErrorFunc. The remainder
-	// is either a cobra usage mistake (missing required flag, unknown command,
-	// wrong arg count), which cobra surfaces as a plain error identified by its
-	// stable text — the same external contract unknownFlagName relies on — or an
-	// untyped error that leaked past the typed boundary. Classify the former as
-	// invalid_argument (exit 2, like the explicit guards); treat the latter as an
-	// internal fault (exit 5) rather than blaming the user's input. The message
-	// is preserved either way, and the typed envelope still carries any pending
-	// deprecation notice.
-	var fallback error
-	if isCobraUsageError(err) {
-		fallback = errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err.Error())
-	} else {
-		fallback = errs.NewInternalError(errs.SubtypeUnknown, "%s", err.Error()).WithCause(err)
-	}
-	output.WriteTypedErrorEnvelope(errOut, fallback, string(f.ResolvedIdentity))
-	return output.ExitCodeOf(fallback)
-}
-
-// cobraUsageErrorMarkers are the stable error-text fragments cobra / pflag
-// (pinned at v1.10.2) emit for usage mistakes — missing required flag, unknown
-// command / flag, wrong argument count. Cobra surfaces these as plain errors,
-// not a typed value we can match on, so the dispatcher recognizes them by text;
-// this is the same external contract unknownFlagName already depends on. A
-// residual error matching none of these has leaked the typed boundary and is
-// treated as an internal fault, not a user error.
-var cobraUsageErrorMarkers = []string{
-	"unknown command ",
-	"unknown flag: ",
-	"unknown shorthand",
-	"required flag(s) ",
-	"flag needs an argument",
-	"bad flag syntax:",
-	"no such flag ",
-	"invalid argument ",
-	"arg(s), ", // accepts / requires N arg(s), received / only received M
-}
-
-// isCobraUsageError reports whether err is a cobra / pflag usage mistake,
-// identified by the stable error text of the pinned cobra version.
-func isCobraUsageError(err error) bool {
-	msg := err.Error()
-	for _, m := range cobraUsageErrorMarkers {
-		if strings.Contains(msg, m) {
-			return true
+	if exitErr := asExitError(err); exitErr != nil {
+		if !exitErr.Raw {
+			// Raw errors (e.g. from `api` command via output.MarkRaw)
+			// preserve the original API error detail; skip enrichment
+			// which would clear it.
+			enrichMissingScopeError(f, exitErr)
+			enrichPermissionError(f, exitErr)
 		}
+		output.WriteErrorEnvelope(errOut, exitErr, string(f.ResolvedIdentity))
+		return exitErr.Code
 	}
-	return false
+
+	// A backward-compat alias records its deprecation notice in PreRunE, which
+	// runs before cobra's required-flag validation — but a missing required flag
+	// fails before RunE and lands here, where the bare "Error:" line would drop
+	// the notice. When a deprecation is pending, route through the structured
+	// envelope so the migration hint still reaches the caller; all other errors
+	// keep the existing plain output.
+	if deprecation.GetPending() != nil {
+		output.WriteErrorEnvelope(errOut, &output.ExitError{
+			Code:   1,
+			Detail: &output.ErrDetail{Type: "validation", Message: err.Error()},
+		}, string(f.ResolvedIdentity))
+		return 1
+	}
+	fmt.Fprintln(errOut, "Error:", err)
+	return 1
+}
+
+// isOuterTypedError returns true if err is a typed *errs.* error AT THE
+// TOP OF THE CHAIN (not buried inside Unwrap). Used by handleRootError
+// to gate PromoteXxxError so a producer's outer typed envelope is never
+// overwritten by a coarser shape derived from its legacy Cause.
+func isOuterTypedError(err error) bool {
+	_, ok := err.(errs.TypedError)
+	return ok
+}
+
+// asExitError converts known structured error types to *output.ExitError.
+// Returns nil for unrecognized errors (e.g. cobra flag errors).
+//
+// Deprecated: legacy *output.ExitError bridge.
+func asExitError(err error) *output.ExitError {
+	var cfgErr *core.ConfigError
+	if errors.As(err, &cfgErr) {
+		return output.ErrWithHint(cfgErr.Code, cfgErr.Type, cfgErr.Message, cfgErr.Hint)
+	}
+	var exitErr *output.ExitError
+	if errors.As(err, &exitErr) {
+		return exitErr
+	}
+	return nil
 }
 
 // installUnknownSubcommandGuard replaces cobra's silent help fallback on
@@ -342,10 +361,13 @@ func installUnknownSubcommandGuard(cmd *cobra.Command) {
 	}
 }
 
-// unknownSubcommandRunE replaces cobra's silent help fallback on group commands
-// with a typed *errs.ValidationError: a flag that belongs to a missing
-// subcommand, a misplaced subcommand-only flag, or an unknown subcommand name
-// each fail structured (exit 2) instead of degrading to help + exit 0.
+// Deprecated: unknownSubcommandRunE produces a legacy *output.ExitError that
+// predates the typed error contract introduced by errs/. New code MUST NOT
+// add producers of this shape — unknown-subcommand signals should move to
+// a typed *errs.ValidationError (or a dedicated typed error) carrying the
+// agent-protocol metadata as typed extension fields. This helper is retained
+// only while existing dispatch sites are migrated; it will be removed once
+// they have moved to the typed surface.
 func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 	if len(args) == 0 {
 		// A bare group (e.g. `sheets`), or one carrying only group-valid flags
@@ -361,13 +383,28 @@ func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 			return cmd.Help()
 		}
 		if unknown := unknownFlagTokens(cmd, rawInvocationArgs); len(unknown) > 0 {
-			verr := errs.NewValidationError(errs.SubtypeInvalidArgument,
-				"unknown flag %s before a subcommand for %q", strings.Join(unknown, ", "), cmd.CommandPath()).
-				WithHint("flags belong to a subcommand; run `%s --help` to list subcommands and their flags", cmd.CommandPath())
-			for _, flag := range unknown {
-				verr.WithParams(errs.InvalidParam{Name: flag, Reason: "unknown flag before a subcommand"})
+			return &output.ExitError{
+				Code: output.ExitValidation,
+				Detail: &output.ErrDetail{
+					Type:    "unknown_flag",
+					Message: fmt.Sprintf("unknown flag %s before a subcommand for %q", strings.Join(unknown, ", "), cmd.CommandPath()),
+					Hint:    fmt.Sprintf("flags belong to a subcommand; run `%s --help` to list subcommands and their flags", cmd.CommandPath()),
+					Detail: map[string]any{
+						// Keep the same detail keys as flagDidYouMean's unknown_flag
+						// so a consumer keyed on Type can read a stable shape. The
+						// subcommand isn't resolved here, so suggestions/valid_flags
+						// have no meaningful universe to draw from — emit empty
+						// rather than the group's own (misleading) flags. unknown is
+						// the back-compat singular field; unknown_flags carries the
+						// full list when more than one flag was supplied.
+						"unknown":       strings.Join(unknown, ", "),
+						"unknown_flags": unknown,
+						"command_path":  cmd.CommandPath(),
+						"suggestions":   []string{},
+						"valid_flags":   []string{},
+					},
+				},
 			}
-			return verr
 		}
 		// The remaining flags are all defined somewhere in the tree. Those valid
 		// on the group itself or inherited (e.g. the global --profile) do not
@@ -379,13 +416,19 @@ func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 		if len(misplaced) == 0 {
 			return cmd.Help()
 		}
-		verr := errs.NewValidationError(errs.SubtypeInvalidArgument,
-			"missing subcommand for %q; flag %s belongs to a subcommand, not the group", cmd.CommandPath(), strings.Join(misplaced, ", ")).
-			WithHint("run `%s --help` to list subcommands and their flags", cmd.CommandPath())
-		for _, flag := range misplaced {
-			verr.WithParams(errs.InvalidParam{Name: flag, Reason: "flag belongs to a subcommand, not the group"})
+		return &output.ExitError{
+			Code: output.ExitValidation,
+			Detail: &output.ErrDetail{
+				Type:    "missing_subcommand",
+				Message: fmt.Sprintf("missing subcommand for %q; flag %s belongs to a subcommand, not the group", cmd.CommandPath(), strings.Join(misplaced, ", ")),
+				Hint:    fmt.Sprintf("run `%s --help` to list subcommands and their flags", cmd.CommandPath()),
+				Detail: map[string]any{
+					"command_path": cmd.CommandPath(),
+					"flags":        misplaced,
+					"suggestions":  []string{},
+				},
+			},
 		}
-		return verr
 	}
 	unknown := args[0]
 	available, deprecated := availableSubcommandNames(cmd)
@@ -399,12 +442,27 @@ func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 		hint = fmt.Sprintf("did you mean one of: %s? (run `%s --help` for the full list)",
 			strings.Join(suggestions, ", "), cmd.CommandPath())
 	}
-	// Record the offending subcommand and its ranked candidates as a param with
-	// machine-readable Suggestions so an agent can retry without parsing the
-	// hint; the hint carries the same candidates as prose.
-	return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", msg).
-		WithParams(errs.InvalidParam{Name: unknown, Reason: "unknown subcommand", Suggestions: suggestions}).
-		WithHint("%s", hint)
+	detail := map[string]any{
+		"unknown":      unknown,
+		"command_path": cmd.CommandPath(),
+		"suggestions":  suggestions,
+		"available":    available,
+	}
+	// Only services with backward-compat aliases (currently sheets) carry a
+	// deprecated bucket; omit the key elsewhere so every other service's
+	// envelope is unchanged.
+	if len(deprecated) > 0 {
+		detail["deprecated"] = deprecated
+	}
+	return &output.ExitError{
+		Code: output.ExitValidation,
+		Detail: &output.ErrDetail{
+			Type:    "unknown_subcommand",
+			Message: msg,
+			Hint:    hint,
+			Detail:  detail,
+		},
+	}
 }
 
 // flagTokensInArgs returns the flag-like tokens (-x, --foo, --foo=bar) in
@@ -530,34 +588,47 @@ func availableSubcommandNames(cmd *cobra.Command) (available, deprecated []strin
 }
 
 // flagDidYouMean is the root FlagErrorFunc (inherited by all subcommands). It
-// converts cobra's flag-parse errors into a typed validation envelope: an
-// unknown flag gets a focused "did you mean" hint (so agents recover even when
-// the typo is semantic, e.g. --query vs --find, where edit distance alone finds
-// nothing) and the offending flag in `params`. Other flag errors stay typed
-// but generic.
+// converts cobra's flag-parse errors into the structured ErrorEnvelope: an
+// unknown flag gets a focused "did you mean" hint plus the full valid-flag list
+// in detail (so agents recover even when the typo is semantic, e.g. --query vs
+// --find, where edit distance alone finds nothing). Other flag errors stay
+// structured but generic.
 func flagDidYouMean(c *cobra.Command, ferr error) error {
 	name, isUnknown := unknownFlagName(ferr)
 	if !isUnknown {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", ferr.Error()).
-			WithHint("run `%s --help` for valid flags", c.CommandPath())
+		return &output.ExitError{
+			Code: output.ExitValidation,
+			Detail: &output.ErrDetail{
+				Type:    "flag_error",
+				Message: ferr.Error(),
+				Hint:    fmt.Sprintf("run `%s --help` for valid flags", c.CommandPath()),
+			},
+		}
 	}
 	valid := visibleFlagNames(c)
 	suggestions := suggest.Closest(name, valid, 3)
-	for i := range suggestions {
-		suggestions[i] = "--" + suggestions[i]
-	}
 	hint := fmt.Sprintf("run `%s --help` to see valid flags", c.CommandPath())
 	if len(suggestions) > 0 {
+		for i := range suggestions {
+			suggestions[i] = "--" + suggestions[i]
+		}
 		hint = fmt.Sprintf("did you mean %s? (run `%s --help` for all flags)",
 			strings.Join(suggestions, ", "), c.CommandPath())
 	}
-	// The ranked candidates ride on the param as machine-readable Suggestions so
-	// an agent can retry without parsing the hint; the hint carries the same
-	// candidates as prose. The full valid-flag list stays recoverable via --help.
-	return errs.NewValidationError(errs.SubtypeInvalidArgument,
-		"unknown flag %q for %q", "--"+name, c.CommandPath()).
-		WithParams(errs.InvalidParam{Name: "--" + name, Reason: "unknown flag", Suggestions: suggestions}).
-		WithHint("%s", hint)
+	return &output.ExitError{
+		Code: output.ExitValidation,
+		Detail: &output.ErrDetail{
+			Type:    "unknown_flag",
+			Message: fmt.Sprintf("unknown flag %q for %q", "--"+name, c.CommandPath()),
+			Hint:    hint,
+			Detail: map[string]any{
+				"unknown":      "--" + name,
+				"command_path": c.CommandPath(),
+				"suggestions":  suggestions,
+				"valid_flags":  valid,
+			},
+		},
+	}
 }
 
 // unknownFlagName extracts the offending long-flag name from cobra's flag-parse
@@ -627,3 +698,56 @@ func installTipsHelpFunc(root *cobra.Command) {
 		}
 	})
 }
+
+// enrichPermissionError rewrites the legacy *output.ExitError envelope so its
+// Message + Hint match the per-subtype canonical text produced by the typed
+// dispatcher path (errclass.CanonicalPermissionMessage / errclass.PermissionHint).
+// This guarantees a caller observing the wire envelope cannot tell whether
+// the error reached the dispatcher via the legacy *ExitError bridge or via
+// the typed *errs.PermissionError fast path.
+//
+// Deprecated: legacy *output.ExitError enrichment; typed PermissionError
+// values produced by errclass.BuildAPIError already carry MissingScopes +
+// ConsoleURL directly.
+func enrichPermissionError(f *cmdutil.Factory, exitErr *output.ExitError) {
+	if exitErr.Detail == nil {
+		return
+	}
+	// Only the legacy permission-class envelope types route here. "app_status"
+	// covers 99991662 (app_disabled) / 99991673 (app_unavailable); "permission"
+	// covers the four scope-class codes (99991672 / 99991676 / 99991679 / 230027).
+	if exitErr.Detail.Type != "permission" && exitErr.Detail.Type != "app_status" {
+		return
+	}
+
+	larkCode := exitErr.Detail.Code
+	meta, ok := errclass.LookupCodeMeta(larkCode)
+	if !ok || meta.Category != errs.CategoryAuthorization {
+		return
+	}
+
+	// Extract required scopes from API error detail (shared helper). May be
+	// empty for app-status codes — canonical message + hint still apply.
+	missing := registry.ExtractRequiredScopes(exitErr.Detail.Detail)
+
+	cfg, err := f.Config()
+	if err != nil {
+		return
+	}
+
+	// Reuse the same console URL builder as the typed path so both wire
+	// envelopes carry identical console_url values for the same input.
+	consoleURL := errclass.ConsoleURL(string(cfg.Brand), cfg.AppID, missing)
+
+	// Clear raw API detail — useful info is now in message/hint/console_url.
+	exitErr.Detail.Detail = nil
+
+	identity := string(f.ResolvedIdentity)
+	if identity == "" {
+		identity = "user"
+	}
+
+	exitErr.Detail.Message = errclass.CanonicalPermissionMessage(meta.Subtype, cfg.AppID, missing, exitErr.Detail.Message)
+	exitErr.Detail.Hint = errclass.PermissionHint(missing, identity, meta.Subtype, consoleURL)
+	exitErr.Detail.ConsoleURL = consoleURL
+}

cmd/root_integration_test.go

@@ -8,6 +8,7 @@ import (
 	"context"
 	"encoding/json"
 	"os"
+	"reflect"
 	"strings"
 	"testing"
 
@@ -26,12 +27,12 @@ import (
 	"github.com/spf13/cobra"
 )
 
-// Canonical strict-mode envelope messages shared across fixtures. The
-// switch-policy hint text is asserted by substring in
-// assertStrictModeDenialEnvelope.
+// Canonical strict-mode envelope strings shared across fixtures
+// (reflect.DeepEqual pins them; keep in sync with strictModeStubFrom).
 const (
 	strictModeBotMessage  = `strict mode is "bot", only bot-identity commands are available`
 	strictModeUserMessage = `strict mode is "user", only user-identity commands are available`
+	strictModeHint        = "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)"
 )
 
 // buildIntegrationRootCmd creates a root command with api, service, and shortcut
@@ -62,46 +63,37 @@ func executeRootIntegration(t *testing.T, f *cmdutil.Factory, rootCmd *cobra.Com
 	return 0
 }
 
-// typedErrorEnvelope mirrors the typed wire shape produced by
-// WriteTypedErrorEnvelope: the inner error marshals an errs.Problem
-// directly, so "type" is the category, "subtype" is top-level, and there
-// is no nested "detail" object. Recovery info (policy source, reason
-// code, suggestions) is folded into "hint".
-type typedErrorEnvelope struct {
-	OK       bool   `json:"ok"`
-	Identity string `json:"identity,omitempty"`
-	Error    struct {
-		Type    string `json:"type"`
-		Subtype string `json:"subtype"`
-		Message string `json:"message"`
-		Hint    string `json:"hint"`
-		Param   string `json:"param,omitempty"`
-	} `json:"error"`
-}
-
-// parseTypedEnvelope decodes stderr as the typed envelope and fails if the
-// legacy nested "detail" object is present (the migration removed it).
-func parseTypedEnvelope(t *testing.T, stderr *bytes.Buffer) typedErrorEnvelope {
+// parseEnvelope parses stderr bytes into an ErrorEnvelope.
+func parseEnvelope(t *testing.T, stderr *bytes.Buffer) output.ErrorEnvelope {
 	t.Helper()
 	if stderr.Len() == 0 {
 		t.Fatal("expected non-empty stderr, got empty")
 	}
-	var raw map[string]any
-	if err := json.Unmarshal(stderr.Bytes(), &raw); err != nil {
-		t.Fatalf("failed to parse stderr as JSON: %v\nstderr: %s", err, stderr.String())
-	}
-	if errObj, ok := raw["error"].(map[string]any); ok {
-		if _, hasDetail := errObj["detail"]; hasDetail {
-			t.Errorf("typed envelope must not carry a nested 'detail' object, got: %s", stderr.String())
-		}
-	}
-	var env typedErrorEnvelope
+	var env output.ErrorEnvelope
 	if err := json.Unmarshal(stderr.Bytes(), &env); err != nil {
-		t.Fatalf("failed to parse stderr as typed envelope: %v\nstderr: %s", err, stderr.String())
+		t.Fatalf("failed to parse stderr as ErrorEnvelope: %v\nstderr: %s", err, stderr.String())
 	}
 	return env
 }
 
+// assertEnvelope verifies exit code, stdout is empty, and stderr matches the
+// expected ErrorEnvelope exactly via reflect.DeepEqual.
+func assertEnvelope(t *testing.T, code int, wantCode int, stdout *bytes.Buffer, stderr *bytes.Buffer, want output.ErrorEnvelope) {
+	t.Helper()
+	if code != wantCode {
+		t.Errorf("exit code: got %d, want %d", code, wantCode)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	got := parseEnvelope(t, stderr)
+	if !reflect.DeepEqual(got, want) {
+		gotJSON, _ := json.MarshalIndent(got, "", "  ")
+		wantJSON, _ := json.MarshalIndent(want, "", "  ")
+		t.Errorf("stderr envelope mismatch:\ngot:\n%s\nwant:\n%s", gotJSON, wantJSON)
+	}
+}
+
 func buildStrictModeIntegrationRootCmd(t *testing.T, f *cmdutil.Factory) *cobra.Command {
 	t.Helper()
 	rootCmd := &cobra.Command{Use: "lark-cli"}
@@ -213,71 +205,23 @@ func TestIntegration_StrictModeBot_ProfileOverride_DirectAuthLoginReturnsEnvelop
 
 	// auth login is user-only, so it gets pruned in strict-mode-bot and the
 	// stub error fires (not login.go's inline check, which is shadowed by
-	// pruning). The typed envelope is a failed_precondition validation
-	// error (exit 2); the strict-mode layer + reason code are folded into
-	// the hint.
-	if code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	env := parseTypedEnvelope(t, stderr)
-	assertStrictModeDenialEnvelope(t, env, strictModeBotMessage)
-}
-
-// assertStrictModeDenialEnvelope pins the shared strict-mode denial shape:
-// a validation/failed_precondition envelope whose message is the short
-// historical strict-mode line and whose hint still names the strict_mode
-// layer + identity_not_supported reason code (the safety-critical recovery
-// info), plus the historical switch-policy guidance.
-func assertStrictModeDenialEnvelope(t *testing.T, env typedErrorEnvelope, wantMessage string) {
-	t.Helper()
-	if env.OK {
-		t.Errorf("envelope ok = true, want false")
-	}
-	if env.Error.Type != "validation" {
-		t.Errorf("error.type = %q, want validation", env.Error.Type)
-	}
-	if env.Error.Subtype != "failed_precondition" {
-		t.Errorf("error.subtype = %q, want failed_precondition", env.Error.Subtype)
-	}
-	if env.Error.Message != wantMessage {
-		t.Errorf("error.message = %q, want %q", env.Error.Message, wantMessage)
-	}
-	if !strings.Contains(env.Error.Hint, "strict_mode") {
-		t.Errorf("error.hint = %q, want substring strict_mode (policy layer)", env.Error.Hint)
-	}
-	if !strings.Contains(env.Error.Hint, "identity_not_supported") {
-		t.Errorf("error.hint = %q, want substring identity_not_supported (reason code)", env.Error.Hint)
-	}
-	if !strings.Contains(env.Error.Hint, "config strict-mode --help") {
-		t.Errorf("error.hint = %q, want historical switch-policy guidance", env.Error.Hint)
-	}
-}
-
-// assertCheckStrictModeEnvelope pins the typed envelope produced by
-// cmdutil.Factory.CheckStrictMode (the identity-guard path for explicit
-// --as on shortcuts / service methods / api): a *errs.ValidationError with
-// subtype invalid_argument, the canonical strict-mode message, and the
-// switch-policy hint.
-func assertCheckStrictModeEnvelope(t *testing.T, env typedErrorEnvelope, wantMessage string) {
-	t.Helper()
-	if env.OK {
-		t.Errorf("envelope ok = true, want false")
-	}
-	if env.Error.Type != "validation" {
-		t.Errorf("error.type = %q, want validation", env.Error.Type)
-	}
-	if env.Error.Subtype != "invalid_argument" {
-		t.Errorf("error.subtype = %q, want invalid_argument", env.Error.Subtype)
-	}
-	if env.Error.Message != wantMessage {
-		t.Errorf("error.message = %q, want %q", env.Error.Message, wantMessage)
-	}
-	if !strings.Contains(env.Error.Hint, "config strict-mode --help") {
-		t.Errorf("error.hint = %q, want switch-policy guidance", env.Error.Hint)
-	}
+	// pruning).
+	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
+		OK: false,
+		Error: &output.ErrDetail{
+			Type:    "command_denied",
+			Message: strictModeBotMessage,
+			Hint:    strictModeHint,
+			Detail: map[string]any{
+				"path":          "auth/login",
+				"layer":         "strict_mode",
+				"policy_source": "strict-mode",
+				"rule_name":     "",
+				"reason_code":   "identity_not_supported",
+				"reason":        strictModeBotMessage,
+			},
+		},
+	})
 }
 
 func TestIntegration_StrictModeBot_ProfileOverride_DirectUserShortcutReturnsEnvelope(t *testing.T) {
@@ -288,14 +232,22 @@ func TestIntegration_StrictModeBot_ProfileOverride_DirectUserShortcutReturnsEnve
 		"im", "+messages-search", "--chat-id", "oc_xxx", "--query", "hello",
 	})
 
-	if code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	env := parseTypedEnvelope(t, stderr)
-	assertStrictModeDenialEnvelope(t, env, strictModeBotMessage)
+	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
+		OK: false,
+		Error: &output.ErrDetail{
+			Type:    "command_denied",
+			Message: strictModeBotMessage,
+			Hint:    strictModeHint,
+			Detail: map[string]any{
+				"path":          "im/+messages-search",
+				"layer":         "strict_mode",
+				"policy_source": "strict-mode",
+				"rule_name":     "",
+				"reason_code":   "identity_not_supported",
+				"reason":        strictModeBotMessage,
+			},
+		},
+	})
 }
 
 func TestIntegration_StrictModeUser_ProfileOverride_ChatCreateDryRunSucceeds(t *testing.T) {
@@ -325,14 +277,15 @@ func TestIntegration_StrictModeUser_ProfileOverride_ShortcutExplicitBotReturnsEn
 		"im", "+chat-create", "--name", "probe", "--as", "bot", "--dry-run",
 	})
 
-	if code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	env := parseTypedEnvelope(t, stderr)
-	assertCheckStrictModeEnvelope(t, env, strictModeUserMessage)
+	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
+		OK:       false,
+		Identity: "bot",
+		Error: &output.ErrDetail{
+			Type:    "validation",
+			Message: `strict mode is "user", only user-identity commands are available`,
+			Hint:    "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)",
+		},
+	})
 }
 
 func TestIntegration_StrictModeBot_ProfileOverride_ServiceExplicitUserReturnsEnvelope(t *testing.T) {
@@ -343,14 +296,15 @@ func TestIntegration_StrictModeBot_ProfileOverride_ServiceExplicitUserReturnsEnv
 		"im", "chats", "get", "--params", `{"chat_id":"oc_test"}`, "--as", "user", "--dry-run",
 	})
 
-	if code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	env := parseTypedEnvelope(t, stderr)
-	assertCheckStrictModeEnvelope(t, env, strictModeBotMessage)
+	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
+		OK:       false,
+		Identity: "user",
+		Error: &output.ErrDetail{
+			Type:    "validation",
+			Message: `strict mode is "bot", only bot-identity commands are available`,
+			Hint:    "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)",
+		},
+	})
 }
 
 func TestIntegration_StrictModeUser_ProfileOverride_ServiceBotOnlyMethodReturnsEnvelope(t *testing.T) {
@@ -361,14 +315,22 @@ func TestIntegration_StrictModeUser_ProfileOverride_ServiceBotOnlyMethodReturnsE
 		"im", "images", "create", "--data", `{"image_type":"message","image":"x"}`, "--dry-run",
 	})
 
-	if code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	env := parseTypedEnvelope(t, stderr)
-	assertStrictModeDenialEnvelope(t, env, strictModeUserMessage)
+	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
+		OK: false,
+		Error: &output.ErrDetail{
+			Type:    "command_denied",
+			Message: strictModeUserMessage,
+			Hint:    strictModeHint,
+			Detail: map[string]any{
+				"path":          "im/images/create",
+				"layer":         "strict_mode",
+				"policy_source": "strict-mode",
+				"rule_name":     "",
+				"reason_code":   "identity_not_supported",
+				"reason":        strictModeUserMessage,
+			},
+		},
+	})
 }
 
 func TestIntegration_StrictModeBot_ProfileOverride_APIExplicitUserReturnsEnvelope(t *testing.T) {
@@ -379,14 +341,15 @@ func TestIntegration_StrictModeBot_ProfileOverride_APIExplicitUserReturnsEnvelop
 		"api", "--as", "user", "GET", "/open-apis/im/v1/chats/oc_test", "--dry-run",
 	})
 
-	if code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	env := parseTypedEnvelope(t, stderr)
-	assertCheckStrictModeEnvelope(t, env, strictModeBotMessage)
+	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
+		OK:       false,
+		Identity: "user",
+		Error: &output.ErrDetail{
+			Type:    "validation",
+			Message: `strict mode is "bot", only bot-identity commands are available`,
+			Hint:    "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)",
+		},
+	})
 }
 
 // --- shortcut command ---
@@ -409,43 +372,16 @@ func TestIntegration_Shortcut_BusinessError_OutputsEnvelope(t *testing.T) {
 		"im", "+messages-send", "--as", "bot", "--chat-id", "oc_xxx", "--text", "test",
 	})
 
-	// shortcut: typed errs.APIError via the CallAPITyped → BuildAPIError path.
-	if code != output.ExitAPI {
-		t.Errorf("exit code = %d, want %d (ExitAPI)", code, output.ExitAPI)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	if stderr.Len() == 0 {
-		t.Fatal("expected non-empty stderr, got empty")
-	}
-	var raw struct {
-		OK       bool   `json:"ok"`
-		Identity string `json:"identity"`
-		Error    struct {
-			Type    string `json:"type"`
-			Code    int    `json:"code"`
-			Message string `json:"message"`
-		} `json:"error"`
-	}
-	if err := json.Unmarshal(stderr.Bytes(), &raw); err != nil {
-		t.Fatalf("failed to parse typed envelope: %v\nstderr: %s", err, stderr.String())
-	}
-	if raw.OK {
-		t.Errorf("envelope ok = true, want false")
-	}
-	if raw.Identity != "bot" {
-		t.Errorf("identity = %q, want bot", raw.Identity)
-	}
-	if raw.Error.Type != "api" {
-		t.Errorf("error.type = %q, want api", raw.Error.Type)
-	}
-	if raw.Error.Code != 230002 {
-		t.Errorf("error.code = %d, want 230002", raw.Error.Code)
-	}
-	if raw.Error.Message != "Bot/User can NOT be out of the chat." {
-		t.Errorf("error.message = %q, want %q", raw.Error.Message, "Bot/User can NOT be out of the chat.")
-	}
+	// shortcut: typed error via DoAPIJSON path
+	assertEnvelope(t, code, output.ExitAPI, stdout, stderr, output.ErrorEnvelope{
+		OK:       false,
+		Identity: "bot",
+		Error: &output.ErrDetail{
+			Type:    "api",
+			Code:    230002,
+			Message: "Bot/User can NOT be out of the chat.",
+		},
+	})
 }
 
 // TestSetupNotices_ColdStart_NoNotice verifies that missing state

cmd/root_test.go

@@ -137,6 +137,9 @@ func TestIsCompletionCommand(t *testing.T) {
 	}
 }
 
+// TestPromoteConfigError_* lives with the implementation in
+// internal/errcompat/promote_test.go.
+
 // TestHandleRootError_SecurityPolicyCanonicalEnvelope verifies that
 // *errs.SecurityPolicyError flows through the canonical typed envelope
 // (output.WriteTypedErrorEnvelope) — type=policy, numeric code, subtype,
@@ -266,11 +269,12 @@ func (f *failingWriter) Write(p []byte) (int, error) {
 	return len(p), nil
 }
 
-// TestHandleRootError_DeprecatedAliasMissingFlagStructured pins that a
-// backward-compat alias failing on a cobra-level required flag (which
-// short-circuits before RunE) routes through the structured envelope, so the
-// deprecation notice OnInvoke records in PreRunE is carried on the wire instead
-// of being dropped on a plain "Error:" line.
+// TestHandleRootError_DeprecatedAliasMissingFlagStructured pins issue #4: a
+// backward-compat alias that fails on a cobra-level required flag (which
+// short-circuits before RunE) still routes through the structured envelope,
+// because OnInvoke records the deprecation in PreRunE and the legacy fallback
+// switches to WriteErrorEnvelope when a deprecation is pending — so the
+// migration notice is no longer dropped on the plain "Error:" line.
 func TestHandleRootError_DeprecatedAliasMissingFlagStructured(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	t.Cleanup(func() { deprecation.SetPending(nil) })
@@ -282,9 +286,9 @@ func TestHandleRootError_DeprecatedAliasMissingFlagStructured(t *testing.T) {
 	deprecation.SetPending(&deprecation.Notice{
 		Command: "+write", Replacement: "+cells-set", Skill: "lark-sheets",
 	})
-	// The bare error shape cobra's ValidateRequiredFlags produces: not a typed
-	// errs.* error, so it reaches the deprecation fallback.
-	exit := handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
+	// The bare error shape cobra's ValidateRequiredFlags produces: neither typed
+	// nor an *output.ExitError, so it reaches the legacy fallback.
+	handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
 
 	out := errOut.String()
 	if strings.HasPrefix(strings.TrimSpace(out), "Error:") {
@@ -293,96 +297,12 @@ func TestHandleRootError_DeprecatedAliasMissingFlagStructured(t *testing.T) {
 	if !strings.Contains(out, `"message"`) || !strings.Contains(out, "values") {
 		t.Errorf("expected a JSON error envelope carrying the failure message; got:\n%s", out)
 	}
-	// The envelope is typed validation, so the exit code must derive from that
-	// category (2) — the wire type and the exit code must not disagree.
-	if exit != int(output.ExitValidation) {
-		t.Errorf("exit = %d, want %d (validation envelope → category-derived exit)", exit, int(output.ExitValidation))
-	}
 }
 
-// TestHandleRootError_AuthConfigWireGolden is the wire-consistency regression
-// baseline for auth/config errors: it pins the typed envelope and exit code the
-// dispatcher produces for the two source-of-truth shapes, which are constructed
-// typed at their origin in internal/auth and internal/core.
-func TestHandleRootError_AuthConfigWireGolden(t *testing.T) {
-	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
-
-	t.Run("token missing exits 3 with token_missing authentication envelope", func(t *testing.T) {
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		errOut := &bytes.Buffer{}
-		f.IOStreams.ErrOut = errOut
-
-		exit := handleRootError(f, internalauth.NewNeedUserAuthorizationError("u_golden"))
-		if exit != int(output.ExitAuth) {
-			t.Errorf("exit = %d, want %d (ExitAuth)", exit, int(output.ExitAuth))
-		}
-
-		errObj := decodeErrorEnvelope(t, errOut.Bytes())
-		if got := errObj["type"]; got != "authentication" {
-			t.Errorf("error.type = %v, want %q", got, "authentication")
-		}
-		if got := errObj["subtype"]; got != "token_missing" {
-			t.Errorf("error.subtype = %v, want %q", got, "token_missing")
-		}
-		if got, _ := errObj["message"].(string); !strings.Contains(got, "need_user_authorization") {
-			t.Errorf("error.message = %q, must keep the need_user_authorization marker", got)
-		}
-		if got, _ := errObj["message"].(string); !strings.Contains(got, "u_golden") {
-			t.Errorf("error.message = %q, must carry the user open id", got)
-		}
-		if got, _ := errObj["hint"].(string); !strings.Contains(got, "auth login") {
-			t.Errorf("error.hint = %q, must point at auth login", got)
-		}
-		if got := errObj["user_open_id"]; got != "u_golden" {
-			t.Errorf("error.user_open_id = %v, want %q", got, "u_golden")
-		}
-	})
-
-	t.Run("not configured exits 3 with not_configured config envelope", func(t *testing.T) {
-		f, _, _, _ := cmdutil.TestFactory(t, nil)
-		errOut := &bytes.Buffer{}
-		f.IOStreams.ErrOut = errOut
-
-		exit := handleRootError(f, core.NotConfiguredError())
-		if exit != int(output.ExitAuth) {
-			t.Errorf("exit = %d, want %d (config shares ExitAuth)", exit, int(output.ExitAuth))
-		}
-
-		errObj := decodeErrorEnvelope(t, errOut.Bytes())
-		if got := errObj["type"]; got != "config" {
-			t.Errorf("error.type = %v, want %q", got, "config")
-		}
-		if got := errObj["subtype"]; got != "not_configured" {
-			t.Errorf("error.subtype = %v, want %q", got, "not_configured")
-		}
-		if got, _ := errObj["message"].(string); !strings.Contains(got, "not configured") {
-			t.Errorf("error.message = %q, want the not-configured message", got)
-		}
-		if got, _ := errObj["hint"].(string); !strings.Contains(got, "config init") {
-			t.Errorf("error.hint = %q, must point at config init", got)
-		}
-	})
-}
-
-// decodeErrorEnvelope unmarshals a typed error envelope and returns its
-// top-level "error" object, failing the test if the shape is unexpected.
-func decodeErrorEnvelope(t *testing.T, raw []byte) map[string]any {
-	t.Helper()
-	var env map[string]any
-	if err := json.Unmarshal(raw, &env); err != nil {
-		t.Fatalf("envelope is not valid JSON: %v\n%s", err, raw)
-	}
-	errObj, ok := env["error"].(map[string]any)
-	if !ok {
-		t.Fatalf("envelope missing top-level error object: %s", raw)
-	}
-	return errObj
-}
-
-// TestHandleRootError_NoDeprecationTypesUsageError pins that a residual cobra
-// usage error (missing required flag) is typed as invalid_argument with exit 2
-// even with no deprecation pending — never cobra's plain "Error:" line.
-func TestHandleRootError_NoDeprecationTypesUsageError(t *testing.T) {
+// TestHandleRootError_NoDeprecationKeepsPlainError pins the other half: with no
+// deprecation pending, the legacy fallback stays a plain "Error:" line, so the
+// fix does not reshape every unrecognized cobra error.
+func TestHandleRootError_NoDeprecationKeepsPlainError(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	t.Cleanup(func() { deprecation.SetPending(nil) })
 	deprecation.SetPending(nil)
@@ -391,45 +311,9 @@ func TestHandleRootError_NoDeprecationTypesUsageError(t *testing.T) {
 	errOut := &bytes.Buffer{}
 	f.IOStreams.ErrOut = errOut
 
-	exit := handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
-
-	out := errOut.String()
-	if strings.HasPrefix(strings.TrimSpace(out), "Error:") {
-		t.Fatalf("want a structured envelope, got a plain Error: line:\n%s", out)
-	}
-	errObj := decodeErrorEnvelope(t, errOut.Bytes())
-	if got := errObj["type"]; got != "validation" {
-		t.Errorf("error.type = %v, want %q", got, "validation")
-	}
-	if got, _ := errObj["message"].(string); !strings.Contains(got, "values") {
-		t.Errorf("error.message = %q, must carry the failing flag name", got)
-	}
-	if exit != int(output.ExitValidation) {
-		t.Errorf("exit = %d, want %d (validation envelope → category-derived exit)", exit, int(output.ExitValidation))
-	}
-}
-
-// TestHandleRootError_LeakedUntypedErrorBecomesInternal pins that an untyped
-// error that does NOT match a cobra usage shape (i.e. one that leaked past the
-// typed boundary from a helper) is classified as an internal fault (exit 5),
-// not blamed on the user's input as a validation error.
-func TestHandleRootError_LeakedUntypedErrorBecomesInternal(t *testing.T) {
-	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
-	t.Cleanup(func() { deprecation.SetPending(nil) })
-	deprecation.SetPending(nil)
-
-	f, _, _, _ := cmdutil.TestFactory(t, nil)
-	errOut := &bytes.Buffer{}
-	f.IOStreams.ErrOut = errOut
-
-	exit := handleRootError(f, fmt.Errorf("upstream helper exploded: %w", io.ErrUnexpectedEOF))
-
-	errObj := decodeErrorEnvelope(t, errOut.Bytes())
-	if got := errObj["type"]; got != "internal" {
-		t.Errorf("error.type = %v, want %q (leaked untyped error must not be mislabeled validation)", got, "internal")
-	}
-	if exit != int(output.ExitInternal) {
-		t.Errorf("exit = %d, want %d (internal envelope → category-derived exit)", exit, int(output.ExitInternal))
+	handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
+	if !strings.HasPrefix(errOut.String(), "Error:") {
+		t.Errorf("no deprecation pending: want a plain 'Error:' line, got:\n%s", errOut.String())
 	}
 }
 
@@ -453,32 +337,12 @@ func TestHandleRootError_PartialWritePreservesExitCode(t *testing.T) {
 	}
 }
 
-// TestHandleRootError_BareErrorExitCodeNoStderr pins the silent-exit
-// contract: a *output.BareError is honored for its exit code while stderr stays
-// empty (stdout already carries the result, so the dispatcher must not layer a
-// second envelope on top).
-func TestHandleRootError_BareErrorExitCodeNoStderr(t *testing.T) {
-	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
-
-	f, _, _, _ := cmdutil.TestFactory(t, nil)
-	errOut := &bytes.Buffer{}
-	f.IOStreams.ErrOut = errOut
-
-	exit := handleRootError(f, output.ErrBare(output.ExitAuth))
-	if exit != int(output.ExitAuth) {
-		t.Errorf("exit = %d, want %d (BareError code propagated)", exit, int(output.ExitAuth))
-	}
-	if errOut.Len() != 0 {
-		t.Errorf("stderr must stay empty for a bare predicate signal, got:\n%s", errOut.String())
-	}
-}
-
-// TestHandleRootError_TypedAuthErrorWithLegacyCausePreserved pins that a typed
-// *errs.AuthenticationError carrying a legacy *NeedAuthorizationError in its
-// Cause chain renders the producer's TokenExpired subtype + custom hint
-// verbatim — the legacy sentinel in the Cause chain never coarsens the wire
-// shape.
-func TestHandleRootError_TypedAuthErrorWithLegacyCausePreserved(t *testing.T) {
+// TestHandleRootError_TypedOuterShortCircuitsPromote pins that when a typed
+// *errs.AuthenticationError carries a legacy *NeedAuthorizationError in its
+// Cause chain, the dispatcher does NOT run PromoteAuthError — doing so
+// would replace the producer's TokenExpired subtype + custom hint with the
+// promoted shape's TokenMissing.
+func TestHandleRootError_TypedOuterShortCircuitsPromote(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
@@ -630,3 +494,136 @@ func TestApplyNeedAuthorizationHint_AppendsExistingHint(t *testing.T) {
 		t.Errorf("expected appended hint %q, got %q", want, authErr.Hint)
 	}
 }
+
+// TestEnrichPermissionError_CanonicalConvergence pins that the legacy
+// *output.ExitError dispatch path produces the same canonical Message + Hint
+// + ConsoleURL as the typed *errs.PermissionError dispatch path. Both paths
+// share errclass.CanonicalPermissionMessage / errclass.PermissionHint /
+// errclass.ConsoleURL — so a wire consumer cannot tell which path produced
+// the envelope.
+func TestEnrichPermissionError_CanonicalConvergence(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	cases := []struct {
+		name            string
+		larkCode        int
+		legacyErrType   string
+		wantMsgSubstrs  []string
+		wantHintSubstrs []string
+		wantConsoleURL  bool
+		wantNoAuthLogin bool // hint must not suggest `auth login`
+	}{
+		{
+			name:            "99991672 app_scope_not_applied",
+			larkCode:        99991672,
+			legacyErrType:   "permission",
+			wantMsgSubstrs:  []string{"access denied", "app cli_test", "drive:drive:read"},
+			wantHintSubstrs: []string{"developer console", "open.feishu.cn"},
+			wantConsoleURL:  true,
+			wantNoAuthLogin: true,
+		},
+		{
+			name:            "99991679 missing_scope",
+			larkCode:        99991679,
+			legacyErrType:   "permission",
+			wantMsgSubstrs:  []string{"unauthorized", "user authorization"},
+			wantHintSubstrs: []string{"lark-cli auth login"},
+		},
+		{
+			name:            "99991673 app_unavailable",
+			larkCode:        99991673,
+			legacyErrType:   "app_status",
+			wantMsgSubstrs:  []string{"unauthorized app", "app cli_test", "not properly installed"},
+			wantHintSubstrs: []string{"tenant admin", "install status"},
+		},
+		{
+			name:            "99991662 app_disabled",
+			larkCode:        99991662,
+			legacyErrType:   "app_status",
+			wantMsgSubstrs:  []string{"app cli_test", "not in use", "currently disabled"},
+			wantHintSubstrs: []string{"tenant admin", "re-enable"},
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+				AppID: "cli_test", AppSecret: "s", Brand: core.BrandFeishu,
+			})
+			f.ResolvedIdentity = core.AsUser
+
+			// Mimic the wire shape ErrAPI produces: legacy *ExitError with
+			// Detail.Type populated by ClassifyLarkError, Detail.Detail
+			// carrying the permission_violations block so ExtractRequiredScopes
+			// can recover the missing scope.
+			scopeForDetail := "drive:drive:read"
+			exitErr := &output.ExitError{
+				Code: output.ExitAPI,
+				Detail: &output.ErrDetail{
+					Type:    tc.legacyErrType,
+					Code:    tc.larkCode,
+					Message: "upstream raw message — must be replaced",
+					Detail: map[string]interface{}{
+						"permission_violations": []interface{}{
+							map[string]interface{}{"subject": scopeForDetail},
+						},
+					},
+				},
+			}
+			enrichPermissionError(f, exitErr)
+
+			for _, sub := range tc.wantMsgSubstrs {
+				if !strings.Contains(exitErr.Detail.Message, sub) {
+					t.Errorf("Message %q missing substring %q", exitErr.Detail.Message, sub)
+				}
+			}
+			if exitErr.Detail.Message == "upstream raw message — must be replaced" {
+				t.Errorf("Message must be rewritten to canonical text; got upstream verbatim")
+			}
+			for _, sub := range tc.wantHintSubstrs {
+				if !strings.Contains(exitErr.Detail.Hint, sub) {
+					t.Errorf("Hint %q missing substring %q", exitErr.Detail.Hint, sub)
+				}
+			}
+			if tc.wantNoAuthLogin && strings.Contains(exitErr.Detail.Hint, "auth login") {
+				t.Errorf("Hint must not suggest `auth login` for this subtype; got %q", exitErr.Detail.Hint)
+			}
+			if tc.wantConsoleURL && exitErr.Detail.ConsoleURL == "" {
+				t.Error("ConsoleURL should be populated when missing scopes are present")
+			}
+		})
+	}
+}
+
+// TestEnrichPermissionError_SkipsUnrelatedTypes pins that an ExitError whose
+// Detail.Type is neither "permission" nor "app_status" is left untouched —
+// no Message rewrite, no Hint rewrite, no ConsoleURL injection.
+func TestEnrichPermissionError_SkipsUnrelatedTypes(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "cli_test", AppSecret: "s", Brand: core.BrandFeishu,
+	})
+	f.ResolvedIdentity = core.AsUser
+
+	for _, ty := range []string{"api_error", "validation", "rate_limit", "auth"} {
+		exitErr := &output.ExitError{
+			Code: output.ExitAPI,
+			Detail: &output.ErrDetail{
+				Type:    ty,
+				Code:    99991400,
+				Message: "untouched",
+				Hint:    "original hint",
+			},
+		}
+		enrichPermissionError(f, exitErr)
+		if exitErr.Detail.Message != "untouched" {
+			t.Errorf("type=%q: Message was rewritten unexpectedly: %q", ty, exitErr.Detail.Message)
+		}
+		if exitErr.Detail.Hint != "original hint" {
+			t.Errorf("type=%q: Hint was rewritten unexpectedly: %q", ty, exitErr.Detail.Hint)
+		}
+		if exitErr.Detail.ConsoleURL != "" {
+			t.Errorf("type=%q: ConsoleURL should not be injected; got %q", ty, exitErr.Detail.ConsoleURL)
+		}
+	}
+}

cmd/schema/schema_test.go

@@ -5,11 +5,9 @@ package schema
 
 import (
 	"encoding/json"
-	"errors"
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 )
@@ -211,45 +209,6 @@ func TestSchemaCmd_UnknownService(t *testing.T) {
 	if !strings.Contains(err.Error(), "Unknown service") {
 		t.Errorf("expected 'Unknown service' error, got: %v", err)
 	}
-	var ve *errs.ValidationError
-	if !errors.As(err, &ve) {
-		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
-	}
-	if ve.Subtype != errs.SubtypeInvalidArgument {
-		t.Errorf("Subtype = %q, want %q", ve.Subtype, errs.SubtypeInvalidArgument)
-	}
-	if !strings.Contains(ve.Hint, "Available:") {
-		t.Errorf("expected hint listing available services, got: %q", ve.Hint)
-	}
-}
-
-// TestSchemaCmd_UnknownMethod_TypedValidation pins the typed envelope for the
-// JSON-mode unknown-method path: *errs.ValidationError with
-// subtype invalid_argument and a hint listing the available methods.
-func TestSchemaCmd_UnknownMethod_TypedValidation(t *testing.T) {
-	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
-		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
-	})
-
-	cmd := NewCmdSchema(f, nil)
-	cmd.SetArgs([]string{"calendar.events.nonexistent_method"})
-	err := cmd.Execute()
-	if err == nil {
-		t.Fatal("expected error for unknown method")
-	}
-	var ve *errs.ValidationError
-	if !errors.As(err, &ve) {
-		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
-	}
-	if ve.Subtype != errs.SubtypeInvalidArgument {
-		t.Errorf("Subtype = %q, want %q", ve.Subtype, errs.SubtypeInvalidArgument)
-	}
-	if !strings.Contains(err.Error(), "Unknown method") {
-		t.Errorf("expected 'Unknown method' error, got: %v", err)
-	}
-	if !strings.Contains(ve.Hint, "Available:") {
-		t.Errorf("expected hint listing available methods, got: %q", ve.Hint)
-	}
 }
 
 // Completion candidate generation (dotted + space forms, strict-mode filtering,

cmd/unknown_subcommand_test.go

@@ -11,7 +11,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/output"
 )
@@ -127,20 +126,29 @@ func TestUnknownSubcommandRunE_FlagBeforeSubcommandIsStructured(t *testing.T) {
 		t.Errorf("error = %q, want it to mention an unknown flag", err.Error())
 	}
 
-	// Typed surface: a validation error (exit 2) whose Params carries the
-	// offending flag so an agent can recover the token without parsing prose.
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	// The detail must stay schema-compatible with flagDidYouMean's unknown_flag
+	// (same Type → same keys), so a consumer keyed on Type reads a stable shape.
+	exitErr, ok := err.(*output.ExitError)
+	if !ok || exitErr.Detail == nil {
+		t.Fatalf("expected *output.ExitError with Detail, got %T", err)
 	}
-	if verr.Subtype != errs.SubtypeInvalidArgument {
-		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
+	if exitErr.Detail.Type != "unknown_flag" {
+		t.Errorf("detail.Type = %q, want unknown_flag", exitErr.Detail.Type)
 	}
-	if output.ExitCodeOf(err) != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d", output.ExitCodeOf(err), output.ExitValidation)
+	detail, ok := exitErr.Detail.Detail.(map[string]any)
+	if !ok {
+		t.Fatalf("expected detail to be map[string]any, got %T", exitErr.Detail.Detail)
 	}
-	if len(verr.Params) != 1 || verr.Params[0].Name != "--badflag" {
-		t.Errorf("params = %v, want one entry named --badflag", verr.Params)
+	if detail["unknown"] != "--badflag" {
+		t.Errorf("detail.unknown = %v, want --badflag", detail["unknown"])
+	}
+	if got, _ := detail["unknown_flags"].([]string); len(got) != 1 || got[0] != "--badflag" {
+		t.Errorf("detail.unknown_flags = %v, want [--badflag]", detail["unknown_flags"])
+	}
+	for _, key := range []string{"suggestions", "valid_flags"} {
+		if _, present := detail[key]; !present {
+			t.Errorf("detail.%s missing; must be present (empty) to match the unknown_flag schema", key)
+		}
 	}
 }
 
@@ -164,21 +172,25 @@ func TestUnknownSubcommandRunE_ValidFlagWithoutSubcommandIsStructured(t *testing
 	if err == nil {
 		t.Fatal("expected a structured missing_subcommand error, got nil (help fallthrough)")
 	}
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	if output.ExitCodeOf(err) != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d", output.ExitCodeOf(err), output.ExitValidation)
+	if exitErr.Code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d", exitErr.Code, output.ExitValidation)
 	}
-	if !strings.Contains(verr.Message, "missing subcommand") {
-		t.Errorf("message = %q, want it to mention a missing subcommand", verr.Message)
+	if exitErr.Detail == nil || exitErr.Detail.Type != "missing_subcommand" {
+		t.Fatalf("detail.Type = %v, want missing_subcommand", exitErr.Detail)
 	}
-	if len(verr.Params) != 1 || verr.Params[0].Name != "--query" {
-		t.Errorf("params = %v, want one entry named --query", verr.Params)
+	detail, ok := exitErr.Detail.Detail.(map[string]any)
+	if !ok {
+		t.Fatalf("detail is not a map: %#v", exitErr.Detail.Detail)
 	}
-	if !strings.Contains(verr.Message, "lark-cli drive") {
-		t.Errorf("message = %q, want it to name the group path", verr.Message)
+	if flags, _ := detail["flags"].([]string); len(flags) != 1 || flags[0] != "--query" {
+		t.Errorf("detail.flags = %v, want [--query]", detail["flags"])
+	}
+	if detail["command_path"] != "lark-cli drive" {
+		t.Errorf("detail.command_path = %v, want lark-cli drive", detail["command_path"])
 	}
 }
 
@@ -229,23 +241,45 @@ func TestUnknownSubcommandRunE_UnknownReturnsStructuredError(t *testing.T) {
 		t.Fatal("expected error for unknown subcommand")
 	}
 
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	if output.ExitCodeOf(err) != output.ExitValidation {
-		t.Errorf("expected exit code %d, got %d", output.ExitValidation, output.ExitCodeOf(err))
+	if exitErr.Code != output.ExitValidation {
+		t.Errorf("expected exit code %d, got %d", output.ExitValidation, exitErr.Code)
 	}
-	if !strings.Contains(verr.Message, `"+bogus"`) {
-		t.Errorf("message should echo the unknown token, got %q", verr.Message)
+	if exitErr.Detail == nil {
+		t.Fatal("expected ExitError to carry Detail")
 	}
-	if !strings.Contains(verr.Message, "lark-cli drive") {
-		t.Errorf("message should name the group path, got %q", verr.Message)
+	if exitErr.Detail.Type != "unknown_subcommand" {
+		t.Errorf("expected Detail.Type=unknown_subcommand, got %q", exitErr.Detail.Type)
+	}
+	if !strings.Contains(exitErr.Detail.Message, `"+bogus"`) {
+		t.Errorf("message should echo the unknown token, got %q", exitErr.Detail.Message)
 	}
 	// "+bogus" has no close neighbor among drive's subcommands, so the hint falls
-	// back to pointing at --help (suggestions, when present, are folded into hint).
-	if !strings.Contains(verr.Hint, "--help") {
-		t.Errorf("hint should guide to --help when there is no suggestion, got %q", verr.Hint)
+	// back to pointing at --help; the full machine-readable list lives in
+	// detail.available below (which also excludes hidden commands).
+	if !strings.Contains(exitErr.Detail.Hint, "--help") {
+		t.Errorf("hint should guide to --help when there is no suggestion, got %q", exitErr.Detail.Hint)
+	}
+
+	detail, ok := exitErr.Detail.Detail.(map[string]any)
+	if !ok {
+		t.Fatalf("expected Detail.Detail to be map[string]any, got %T", exitErr.Detail.Detail)
+	}
+	if detail["unknown"] != "+bogus" {
+		t.Errorf("detail.unknown should be +bogus, got %v", detail["unknown"])
+	}
+	if detail["command_path"] != "lark-cli drive" {
+		t.Errorf("detail.command_path should be %q, got %v", "lark-cli drive", detail["command_path"])
+	}
+	available, ok := detail["available"].([]string)
+	if !ok {
+		t.Fatalf("detail.available should be []string, got %T", detail["available"])
+	}
+	if len(available) != 3 {
+		t.Errorf("expected 3 available entries (hidden excluded), got %d: %v", len(available), available)
 	}
 }
 
@@ -254,12 +288,13 @@ func TestUnknownSubcommandRunE_NestedResourceGroup(t *testing.T) {
 	installUnknownSubcommandGuard(root)
 
 	err := files.RunE(files, []string{"bogus"})
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError on nested group, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError on nested group, got %T", err)
 	}
-	if !strings.Contains(verr.Message, "lark-cli drive files") {
-		t.Errorf("message should reflect the nested resource path, got %q", verr.Message)
+	if exitErr.Detail.Detail.(map[string]any)["command_path"] != "lark-cli drive files" {
+		t.Errorf("command_path should reflect the nested resource, got %v",
+			exitErr.Detail.Detail.(map[string]any)["command_path"])
 	}
 }
 
@@ -302,10 +337,10 @@ func TestAvailableSubcommandNames_SplitsDeprecatedGroup(t *testing.T) {
 	}
 }
 
-// unknownSubcommandRunE ranks suggestions across both current and deprecated
-// subcommands so a mistyped legacy alias resolves; the closest match is folded
-// into the hint.
-func TestUnknownSubcommandRunE_SuggestsAcrossDeprecatedBucket(t *testing.T) {
+// unknownSubcommandRunE must split current vs deprecated subcommands into
+// separate detail buckets, while suggestions still rank across both so a
+// mistyped legacy alias resolves.
+func TestUnknownSubcommandRunE_SplitsDeprecatedBucket(t *testing.T) {
 	svc := &cobra.Command{Use: "sheets"}
 	svc.AddGroup(&cobra.Group{ID: cmdutil.DeprecatedGroupID, Title: "Deprecated"})
 	svc.AddCommand(
@@ -314,26 +349,31 @@ func TestUnknownSubcommandRunE_SuggestsAcrossDeprecatedBucket(t *testing.T) {
 	)
 
 	err := unknownSubcommandRunE(svc, []string{"+reat"})
-	var verr *errs.ValidationError
-	if !errors.As(err, &verr) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	// "+reat" is closest to the deprecated +read: the candidate must surface
-	// both as a machine-readable param suggestion (for agent retry) and in the
-	// hint, proving ranking spans the deprecated bucket.
-	if len(verr.Params) != 1 || verr.Params[0].Name != "+reat" {
-		t.Fatalf("params = %v, want one entry named +reat (the offending subcommand)", verr.Params)
+	detail, ok := exitErr.Detail.Detail.(map[string]any)
+	if !ok {
+		t.Fatalf("detail is not a map: %#v", exitErr.Detail.Detail)
 	}
-	foundSuggestion := false
-	for _, s := range verr.Params[0].Suggestions {
+
+	if available, _ := detail["available"].([]string); len(available) != 1 || available[0] != "+cells-get" {
+		t.Errorf("available = %v, want [+cells-get]", available)
+	}
+	deprecated, ok := detail["deprecated"].([]string)
+	if !ok || len(deprecated) != 1 || deprecated[0] != "+read" {
+		t.Errorf("deprecated = %v, want [+read]", deprecated)
+	}
+	// suggestions rank across both buckets: "+reat" is closest to +read.
+	suggestions, _ := detail["suggestions"].([]string)
+	found := false
+	for _, s := range suggestions {
 		if s == "+read" {
-			foundSuggestion = true
+			found = true
 		}
 	}
-	if !foundSuggestion {
-		t.Errorf("Params[0].Suggestions should include +read, got %v", verr.Params[0].Suggestions)
-	}
-	if !strings.Contains(verr.Hint, "+read") {
-		t.Errorf("hint %q should suggest +read (typo target across deprecated bucket)", verr.Hint)
+	if !found {
+		t.Errorf("suggestions %v should include +read (typo target)", suggestions)
 	}
 }

cmd/update/update.go

@@ -10,7 +10,6 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/output"
@@ -133,14 +132,12 @@ func updateRun(opts *UpdateOptions) error {
 	// 1. Fetch latest version
 	latest, err := fetchLatest()
 	if err != nil {
-		return reportError(opts, io, "network",
-			errs.NewNetworkError(errs.SubtypeNetworkTransport, "failed to check latest version: %s", err).WithCause(err))
+		return reportError(opts, io, output.ExitNetwork, "network", "failed to check latest version: %s", err)
 	}
 
 	// 2. Validate version format
 	if update.ParseVersion(latest) == nil {
-		return reportError(opts, io, "update_error",
-			errs.NewInternalError(errs.SubtypeInvalidResponse, "invalid version from registry: %s", latest))
+		return reportError(opts, io, output.ExitInternal, "update_error", "invalid version from registry: %s", latest)
 	}
 
 	// 3. Compare versions
@@ -169,18 +166,15 @@ func updateRun(opts *UpdateOptions) error {
 
 // --- Output helpers ---
 
-// reportError emits the failure on the requested surface: JSON mode prints the
-// {ok:false, error:{type, message}} envelope to stdout and signals the typed
-// error's exit code bare; human mode returns the typed error for the
-// dispatcher to render.
-func reportError(opts *UpdateOptions, io *cmdutil.IOStreams, errType string, typedErr errs.TypedError) error {
+func reportError(opts *UpdateOptions, io *cmdutil.IOStreams, exitCode int, errType, format string, args ...interface{}) error {
+	msg := fmt.Sprintf(format, args...)
 	if opts.JSON {
 		output.PrintJson(io.Out, map[string]interface{}{
-			"ok": false, "error": map[string]interface{}{"type": errType, "message": typedErr.ProblemDetail().Message},
+			"ok": false, "error": map[string]interface{}{"type": errType, "message": msg},
 		})
-		return output.ErrBare(output.ExitCodeOf(typedErr))
+		return output.ErrBare(exitCode)
 	}
-	return typedErr
+	return output.Errorf(exitCode, errType, "%s", msg)
 }
 
 func reportCheckResult(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, canAutoUpdate bool) error {
@@ -234,8 +228,7 @@ func doManualUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest stri
 func doNpmUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, updater *selfupdate.Updater) error {
 	restore, err := updater.PrepareSelfReplace()
 	if err != nil {
-		return reportError(opts, io, "update_error",
-			errs.NewAPIError(errs.SubtypeUnknown, "failed to prepare update: %s", err).WithCause(err))
+		return reportError(opts, io, output.ExitAPI, "update_error", "failed to prepare update: %s", err)
 	}
 
 	if !opts.JSON {

cmd/update/update_test.go

@@ -14,7 +14,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
@@ -335,88 +334,13 @@ func TestUpdateFetchError_Human(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected non-nil error, got nil")
 	}
-	var netErr *errs.NetworkError
-	if !errors.As(err, &netErr) {
-		t.Fatalf("expected *errs.NetworkError, got %T: %v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
 	}
-	if netErr.Subtype != errs.SubtypeNetworkTransport {
-		t.Errorf("subtype = %q, want %q", netErr.Subtype, errs.SubtypeNetworkTransport)
+	if exitErr.Code != output.ExitNetwork {
+		t.Errorf("expected ExitNetwork (%d), got %d", output.ExitNetwork, exitErr.Code)
 	}
-	if got := output.ExitCodeOf(err); got != output.ExitNetwork {
-		t.Errorf("expected ExitNetwork (%d), got %d", output.ExitNetwork, got)
-	}
-}
-
-// TestUpdateInvalidVersion_Human verifies a malformed registry version surfaces
-// as a typed internal error in human mode, keeping the legacy exit code 5.
-func TestUpdateInvalidVersion_Human(t *testing.T) {
-	f, _, _ := newTestFactory(t)
-	cmd := NewCmdUpdate(f)
-	cmd.SetArgs([]string{})
-
-	origFetch := fetchLatest
-	fetchLatest = func() (string, error) { return "not-a-version", nil }
-	defer func() { fetchLatest = origFetch }()
-
-	cmd.SilenceErrors = true
-	cmd.SilenceUsage = true
-
-	err := cmd.Execute()
-	if err == nil {
-		t.Fatal("expected non-nil error, got nil")
-	}
-	var intErr *errs.InternalError
-	if !errors.As(err, &intErr) {
-		t.Fatalf("expected *errs.InternalError, got %T: %v", err, err)
-	}
-	if intErr.Subtype != errs.SubtypeInvalidResponse {
-		t.Errorf("subtype = %q, want %q", intErr.Subtype, errs.SubtypeInvalidResponse)
-	}
-	if got := output.ExitCodeOf(err); got != output.ExitInternal {
-		t.Errorf("expected ExitInternal (%d), got %d", output.ExitInternal, got)
-	}
-}
-
-// TestReportError pins reportError's two surfaces after the typed migration:
-// human mode returns the typed error unchanged; JSON mode prints the legacy
-// {ok:false, error:{type, message}} envelope and exits bare with the typed
-// error's exit code (parity with the legacy explicit exit-code argument).
-func TestReportError(t *testing.T) {
-	t.Run("human mode returns the typed error", func(t *testing.T) {
-		f, _, _ := newTestFactory(t)
-		typed := errs.NewAPIError(errs.SubtypeUnknown, "failed to prepare update: disk full")
-		err := reportError(&UpdateOptions{JSON: false}, f.IOStreams, "update_error", typed)
-		var apiErr *errs.APIError
-		if !errors.As(err, &apiErr) {
-			t.Fatalf("expected *errs.APIError, got %T: %v", err, err)
-		}
-		if apiErr != typed {
-			t.Errorf("reportError must return the typed error unchanged")
-		}
-		if got := output.ExitCodeOf(err); got != output.ExitAPI {
-			t.Errorf("exit code = %d, want %d (ExitAPI, legacy parity)", got, output.ExitAPI)
-		}
-	})
-
-	t.Run("json mode prints envelope and exits bare with typed code", func(t *testing.T) {
-		f, stdout, _ := newTestFactory(t)
-		typed := errs.NewNetworkError(errs.SubtypeNetworkTransport, "failed to check latest version: timeout")
-		err := reportError(&UpdateOptions{JSON: true}, f.IOStreams, "network", typed)
-		var bareErr *output.BareError
-		if !errors.As(err, &bareErr) {
-			t.Fatalf("expected bare *output.BareError, got %T: %v", err, err)
-		}
-		if bareErr.Code != output.ExitNetwork {
-			t.Errorf("bare exit code = %d, want %d", bareErr.Code, output.ExitNetwork)
-		}
-		out := stdout.String()
-		if !strings.Contains(out, `"type": "network"`) && !strings.Contains(out, `"type":"network"`) {
-			t.Errorf("JSON envelope missing type, got: %s", out)
-		}
-		if !strings.Contains(out, "failed to check latest version: timeout") {
-			t.Errorf("JSON envelope missing message, got: %s", out)
-		}
-	})
 }
 
 func TestUpdateInvalidVersion_JSON(t *testing.T) {
@@ -579,12 +503,12 @@ func TestUpdateNpmVerifyFail_JSON_NoRestoreHintWhenBackupUnavailable(t *testing.
 	if err == nil {
 		t.Fatal("expected verification failure")
 	}
-	var bareErr *output.BareError
-	if !errors.As(err, &bareErr) {
-		t.Fatalf("expected *output.BareError, got %T: %v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
 	}
-	if bareErr.Code != output.ExitAPI {
-		t.Fatalf("expected ExitAPI (%d), got %d", output.ExitAPI, bareErr.Code)
+	if exitErr.Code != output.ExitAPI {
+		t.Fatalf("expected ExitAPI (%d), got %d", output.ExitAPI, exitErr.Code)
 	}
 
 	out := stdout.String()

docs/specs/sheet-history-revert/spec.md

@@ -1,305 +0,0 @@
----
-req_id: sheet-history-revert
-mode: from-prd
-tracks: [be]
-created_at: 2026-06-23T13:09:08Z
----
-
-> ⚠️ **请勿直接编辑此文档**
-> 修改请通过 `/ccm-harness:draft-spec sheet-history-revert "<变更描述>"`（路由器会进入 update capability）
-> 手改不会被 check-spec-drift 放过，且会破坏 Frozen 快照关联性
-> 本文档由 /ccm-harness:draft-spec 生成于 2026-06-23T13:09:08Z；req-id：sheet-history-revert
-
----
-
-# Sheet 历史版本查询与回滚
-
-<!-- BEGIN generated overview — scripts/render_spec_overview.py 自动生成，勿手改；改 spec 请走 /ccm-harness:draft-spec <req-id> "<变更>"（update） -->
-## 方案概览 / TL;DR
-
-> 本段由机器从下方子任务字段**确定性生成**，供快速把握方案；**权威细节仍以各子任务 `yaml` 块为准**。
-
-- **需求** `sheet-history-revert` ｜ 模式 `from-prd` ｜ 端 BE
-- **规模** 5 BE ｜ **涉及 PSM** `tooling.lark_cli`, `tooling.sheet_skill_spec`, `sheet.facade.agg`, `bear.server.sheet_data` ｜ **Thrift 影响** 无 ×5
-
-| 子任务 | 一句话 | 关键信息 |
-|---|---|---|
-| BE-1 | lark-cli `+history-list` 历史记录列表 shortcut | `tooling.lark_cli` · thrift:无 · `history_list[read]（callTool tools/invoke_read；内部对接 /space/api/v3/sheet/histories）` |
-| BE-2 | lark-cli `+history-revert` 与 `+history-revert-status` 回滚流 shortcut | `tooling.lark_cli` · thrift:无 · `history_revert[write] / history_revert_status[read]（callTool tools/invoke_write\|read；内部对接 /space/api/v2/sheet/recover、/api/v2/sheet/recover/status）` |
-| BE-3 | sheet-skill-spec 上游事实源（skill 正文 + shortcut/flag 定义） | `tooling.sheet_skill_spec` · thrift:无 · `A` |
-| BE-4 | sheet-facade-agg 在现有 ToolsCall 上新增 3 个历史/回滚工具 | `sheet.facade.agg` · thrift:无 · `history_list[read] / history_revert[write] / history_revert_status[read]` |
-| BE-5 | sheet/data 透传 scene 并在 RecoverMsg 上新增 Scene 字段 | `bear.server.sheet_data` · thrift:无 · `RecoverHistory / QueryRecoverStatus（复用）；MQ RecoverMsg 加 Scene 字段` |
-
-> 完整字段见各子任务 `yaml` 块。
-<!-- END generated overview -->
-
-## 概述与范围
-
-为 `lark-cli` 的 lark-sheets 能力补齐**电子表格历史版本查询与回滚**，新增 3 个 shortcut，让 AI / 用户可以列出某张表的历史版本、回滚到指定版本、并查询回滚的异步状态。三个 shortcut 封装的是飞书电子表格已上线的 space 接口（见下表的「前端接口参考」），本需求不新建产品能力，只是把它们包装成稳定、AI 友好的命令面。
-
-| 功能 | shortcut | 前端接口参考（搜索 lark/idl） | 实现差异点 |
-|---|---|---|---|
-| 查历史记录列表 | `+history-list` | `/space/api/v3/sheet/histories` | ① 仅返回 `minor_histories` 列表；② `minor_histories` 的 `id` 字段重命名为 `history_version_id`；③ 每条仅保留 `history_version_id` / `create_time`（序列化成 AI 优化的可读格式）/ `action` / `all_block_revision` 四个字段 |
-| 历史记录回滚 | `+history-revert` | `/space/api/v2/sheet/recover` | 传入 `+history-list` 拿到的 `history_version_id`，回滚到指定版本 |
-| 查询回滚状态 | `+history-revert-status` | `/api/v2/sheet/recover/status` | 查询 `+history-revert` 发起的异步回滚的当前状态 |
-
-**范围内**：
-- `larksuite/cli` 仓新增 3 个 sheets shortcut（含 `+history-list` 的响应裁剪 / 字段重命名 / 时间格式转换逻辑）。
-- `ee/sheet-skill-spec` 上游事实源补 skill 正文与 shortcut/flag 定义，经其工作流 `sync:cli` 同步到 `larksuite/cli` 的 `skills/lark-sheets/` 与 `shortcuts/sheets/data/`。
-- `ee/sheet-facade-agg` **复用现有 `ToolsCall` 接口**，在其上新增 3 个工具（`history_list` / `history_revert` / `history_revert_status`）；并在**回滚消息消费侧**（消费 `sheet/data` 产出的 RecoverMsg）按 scene 给 `memberId` 赋值（doubao=10，lark-cli=11）后构造 recover cs。
-- `sheet/data`（`bear.server.sheet_data`）把 scene 从入口透传到 `RecoverHistory`，并在产出的 `RecoverMsg`（MQ 消息）上**新增 `Scene` 字段**，供 agg 消费时区分场景。
-
-**范围外**：
-- 历史版本的底层存储 / 快照 / 过期清理逻辑、`RecoverHistory` 的回滚业务语义（`bear.server.sheet_data` 已有，本需求仅透传 scene + 加 MQ 字段，不改回滚逻辑本身）。
-- 历史版本 diff、可视化、权限模型变更等产品侧扩展。
-- `doubao-office` 消费方的同步（`sheet-skill-spec` 另有 `sync:doubao`，本需求不涉及）。
-
-## 服务拓扑与 PSM 变更判定表
-
-**调用链路（目标形态）**：
-
-```
-用户 / AI ──> lark-cli (+history-list / +history-revert / +history-revert-status)
-                   │  callTool → POST /open-apis/sheet_ai/v2/.../tools/invoke_read|write（scene 随入口确定）
-                   ▼
-        sheet.facade.agg  ToolsCall（复用现有接口，新增 3 个工具:
-                          history_list[read] / history_revert[write] / history_revert_status[read]）
-        ├─ history_list      ──> 拉历史列表（裁剪 minor_histories / 4 字段 / AI 时间格式）
-        ├─ history_revert ───scene(ctx 透传)──> bear.server.sheet_data: RecoverHistory
-        │                                          │ service.RecoverHistory → SendRecoverMsg
-        │                                          ▼
-        │                                   MQ: RecoverMsg（新增 Scene 字段）
-        │                                          ▼
-        │   sheet.facade.agg  RecoverMsg 消费者 ── 读 Scene → memberId(doubao=10/lark-cli=11)
-        │                                          → 构造 recover cs → 调既有 recover 下游
-        └─ history_revert_status ──> bear.server.sheet_data: QueryRecoverStatus(transactionID)
-```
-
-`lark-cli` 现有 sheets shortcut 统一通过 `callTool`（`shortcuts/sheets/sheet_ai_api.go`）走 One-OpenAPI 的 `tools/invoke_read|write` 入口（`ToolKindRead` / `ToolKindWrite`），由 `sheet.facade.agg` 的 `OpenAPIToolCallRead/Write`（`biz/handler/lark_cli.go`，底层复用 `aiService.ToolsCall`）按 `tool_name` 分发。本需求的 3 个 shortcut 即按此路径新增 3 个工具，而非直连 space 接口或新增独立 OpenAPI 路由。
-
-**回滚为异步两段式**：`history_revert` 工具调 `sheet/data` 的 `RecoverHistory`（`biz/history/service/recover.go`），后者通过 `SendRecoverMsg`（`infra/mq/producer/recover.go` 的 `RecoverMsg`）投递回滚消息并返回 `transactionID`；agg 侧的 RecoverMsg 消费者真正构造 recover cs，并在此时按 scene 给 `memberId` 赋值。`history_revert_status` 工具走 `sheet/data` 的 `QueryRecoverStatus(transactionID)` 查询异步结果。scene 从 ToolsCall 入口经 **ctx 透传**（沿用既有 `utils.WithSceneDoubao(ctx)` 范式）到 `RecoverHistory`，再写入 `RecoverMsg.Scene` 字段，使 agg 消费时可区分 doubao / lark-cli。
-
-**PSM 变更判定表**：
-
-| PSM | 需要代码变更？ | 变更内容 | 不变更原因 |
-|---|---|---|---|
-| `tooling.lark_cli`（`larksuite/cli`，无服务 PSM） | 是 | 新增 3 个 shortcut + `+history-list` 响应 transform | — |
-| `tooling.sheet_skill_spec`（`ee/sheet-skill-spec`，无服务 PSM） | 是 | 新增 lark-sheets skill 正文 + 3 个 shortcut/flag 定义，生成后同步到 cli | — |
-| `sheet.facade.agg`（`ee/sheet-facade-agg`） | 是 | ① 现有 `ToolsCall` 新增 3 个工具（`history_list[read]` / `history_revert[write]` / `history_revert_status[read]`）；② `history_revert` 工具调 `sheet/data` 时透传 scene（ctx）；③ **RecoverMsg 消费者**读 `Scene` 字段，按 scene 给 `memberId` 赋值后构造 recover cs。**无新 thrift**（工具按 `tool_name`+JSON 注册，scene 走 ctx baggage） | — |
-| `bear.server.sheet_data`（`sheet/data`） | 是 | scene 从入口透传到 `RecoverHistory`（`biz/history/service/recover.go`），并在 `RecoverMsg`（`infra/mq/producer/recover.go`）上**新增 `Scene` 字段**随消息投递。`RecoverMsg` 是 JSON Go struct，加字段**非 thrift**；scene 透传走 ctx baggage | 回滚 / 快照业务语义不变（`RestoreHistorySnapshot` / `QueryRecoverStatus` 等复用） |
-
-> **`memberId` 按 scene 赋值（实现硬约束，跨 sheet/data + agg）**：scene 区分 doubao 与 lark-cli（沿用既有 `utils.WithSceneDoubao(ctx)` 范式）。本需求要求 scene 从 ToolsCall 入口一路透传：
-> 1. agg `history_revert` 工具调用 `sheet/data.RecoverHistory` 时，把 scene 经 ctx 透传；
-> 2. `sheet/data` 在产出的 `RecoverMsg` 上写入 `Scene` 字段，随 MQ 投递；
-> 3. **agg 的 RecoverMsg 消费者**在真正构造 recover cs 时，读 `Scene` 给 `memberId` 赋值——doubao 场景 = `10`，其他（lark-cli）场景 = `11`。
->
-> memberId 赋值发生在 **agg 消费侧**（不是同步 ToolsCall 调用栈，因为回滚是异步消息驱动）。错误的 memberId 会导致回滚归属错误的调用方身份（审计 / 权限相关）。`RecoverMsg.MemberId` 字段已存在，但本需求要求按 scene 正确赋值并据此区分两个消费方。
-
-## 后端 / Tooling 子任务
-
-> 说明：`lark-cli` 与 `sheet-skill-spec` 均属 Tooling，按 ccm-harness 约定建 BE-*，`thrift_impact: 无`。本需求无前端（FE）子任务。
-
-### BE-1: lark-cli `+history-list` 历史记录列表 shortcut
-
-```yaml
-psm: tooling.lark_cli
-repo: larksuite/cli
-module: shortcuts/sheets
-be_deploy_required: false
-thrift_impact: 无
-api: facade-agg ToolsCall::history_list[read]（callTool tools/invoke_read；内部对接 /space/api/v3/sheet/histories）
-depends_on: [BE-4]
-estimate: 1.5d
-```
-
-**调用的下游服务**：经 `callTool(ToolKindRead, "history_list", ...)`（`shortcuts/sheets/sheet_ai_api.go`）走 `tools/invoke_read` 入口，由 facade-agg 的 `history_list` 工具内部对接 `/space/api/v3/sheet/histories`。入参：表格 token（沿用现有 sheets shortcut 的 `--spreadsheet-token` / `--token` 解析）。响应裁剪 / 字段重命名 / 时间格式可在 facade-agg 工具侧或 lark-cli 侧完成（见实现要点；以 AI 友好输出为准）。
-**实现要点（实现差异点落地）**：
-- 仅取响应中的 `minor_histories` 列表，丢弃其余顶层字段（如 major histories）。
-- 将每条 `minor_histories` 的 `id` 字段重命名输出为 `history_version_id`。
-- 每条仅保留 4 个字段：`history_version_id`、`create_time`、`action`、`all_block_revision`。
-- `create_time` 序列化成 AI 优化的可读格式（如本地时区可读时间串），而非裸 unix 时间戳。
-**验收场景**：
-- Given 一张有多个历史版本的电子表格，When 执行 `lark-cli sheets +history-list --token <t>`，Then 返回 JSON 数组，每条恰好含 `history_version_id` / `create_time` / `action` / `all_block_revision` 四个键，且 `create_time` 为可读格式。
-- Given 一张无历史记录的表格，When 执行 `+history-list`，Then 返回空列表且退码 0（不报错）。
-
-### BE-2: lark-cli `+history-revert` 与 `+history-revert-status` 回滚流 shortcut
-
-```yaml
-psm: tooling.lark_cli
-repo: larksuite/cli
-module: shortcuts/sheets
-be_deploy_required: false
-thrift_impact: 无
-api: facade-agg ToolsCall::history_revert[write] / history_revert_status[read]（callTool tools/invoke_write|read；内部对接 /space/api/v2/sheet/recover、/api/v2/sheet/recover/status）
-depends_on: [BE-1, BE-4, BE-5]
-estimate: 1.5d
-```
-
-**调用的下游服务**：
-- `+history-revert` → `callTool(ToolKindWrite, "history_revert", ...)`，agg 工具调 `sheet/data.RecoverHistory`（异步），返回 `transactionID`。
-- `+history-revert-status` → `callTool(ToolKindRead, "history_revert_status", ...)`，agg 工具调 `sheet/data.QueryRecoverStatus(transactionID)` 查异步结果。
-- 注：`memberId` 按 scene 赋值（doubao=10 / lark-cli=11）发生在 agg 的 **RecoverMsg 消费者**侧（见 BE-4 / BE-5），lark-cli 侧不感知；scene 由 callTool 入口（read/write）确定。
-**实现要点**：
-- `+history-revert` 的 `--history-version-id`（命名对齐 BE-1 的输出字段）为必填；缺失时在 Validate 阶段给出可执行错误提示。
-- 回滚为异步操作，`+history-revert` 返回受理结果，`+history-revert-status` 供轮询最终状态（成功 / 进行中 / 失败）。
-**验收场景**：
-- Given 由 `+history-list` 取得的合法 `history_version_id`，When 执行 `+history-revert --token <t> --history-version-id <id>`，Then 后端受理回滚并返回可被 `+history-revert-status` 查询的标识。
-- Given 一次已发起的回滚，When 轮询 `+history-revert-status`，Then 能区分「进行中 / 成功 / 失败」三种状态。
-- Given 缺省 `--history-version-id`，When 执行 `+history-revert`，Then 返回明确的参数缺失错误，不发起请求。
-
-### BE-3: sheet-skill-spec 上游事实源（skill 正文 + shortcut/flag 定义）
-
-```yaml
-psm: tooling.sheet_skill_spec
-repo: ee/sheet-skill-spec
-module: canonical-spec
-be_deploy_required: false
-thrift_impact: 无
-api: N/A
-depends_on: [BE-1, BE-2]
-estimate: 1d
-```
-
-**调用的下游服务**：无（构建期工作流）。
-**实现要点（按 `sheet-skill-spec` README 工作流）**：
-- 在飞书 base 表登记 3 个新 shortcut 的 tool ↔ shortcut 映射与 flag 定义，`npm run sync:tool-shortcut-map` 镜像入仓。
-- 在 `canonical-spec/references/<相关 skill>/cli-reference.md` 补三个 shortcut 的描述 / 示例 / Validate-DryRun-Execute 约束。
-- 跑 `npm run generate:all && npm run check:all` 验证，产出 `generated/lark-cli/skills/lark-sheets/` 与 `generated/lark-cli/data/{flag-defs.json,flag-schemas.json}`。
-- 跑 `npm run sync:cli` 把 generated 同步到 `larksuite/cli` 的 `skills/lark-sheets/`（mirror）与 `shortcuts/sheets/data/`（mirror），在 cli 仓作为 PR 提交。
-**边界**：skill 命名 / 切分 / 正文 / flag 定义一律先落 `sheet-skill-spec`，禁止直接改 cli 仓的 `generated`/`skills/lark-sheets/` 产物（README「对齐原则」）。
-**验收场景**：
-- Given 在 `sheet-skill-spec` 完成上述编辑，When 跑 `npm run check:all`，Then 全部门禁通过（generated 与 canonical 一致、map 与 base 表一致）。
-- Given 跑 `npm run sync:cli`，Then cli 仓 `skills/lark-sheets/` 与 `shortcuts/sheets/data/` 出现对应 3 个 shortcut 的 skill 正文与 flag 定义。
-
-### BE-4: sheet-facade-agg 在现有 ToolsCall 上新增 3 个历史/回滚工具
-
-```yaml
-psm: sheet.facade.agg
-repo: ee/sheet-facade-agg
-module: biz/handler
-be_deploy_required: true
-thrift_impact: 无
-api: ToolsCall::history_list[read] / history_revert[write] / history_revert_status[read]
-depends_on: []
-estimate: 1.5d
-```
-
-**调用的下游服务**：`sheet/data` 的 `RecoverHistory` / `QueryRecoverStatus`（见 BE-5）+ 既有历史查询；agg 的 RecoverMsg 消费者复用既有 recover 下游（`biz/service/spreadsheet.go::ProcessRecoverCs`、`model.RecoverParam`），不新增 thrift。
-**实现要点**：
-- **ToolsCall 扩展**：在现有 `ToolsCall` 框架（`biz/handler/handler.go::ToolsCall` / `biz/handler/lark_cli.go::OpenAPIToolCallRead|Write`）注册 3 个新工具：`history_list`（read）、`history_revert`（write）、`history_revert_status`（read），按 `constants.IsReadTool` / `IsWriteTool` 归类，从 `tools/invoke_read` / `invoke_write` 入口可达。
-- **scene 透传**：`history_revert` / `history_revert_status` 工具调 `sheet/data` 时，把 scene 经 ctx（沿用 `utils.WithSceneDoubao` 范式）透传下去，使 `sheet/data` 能写入 `RecoverMsg.Scene`。
-- **RecoverMsg 消费者按 scene 赋 memberId（硬约束）**：agg 消费 `sheet/data` 投递的 `RecoverMsg`、构造真正 recover cs 时，读 `RecoverMsg.Scene` 给 `memberId` 赋值——doubao = `10`，lark-cli = `11`。这是异步消费侧逻辑，不在同步 ToolsCall 调用栈。
-- `history_list` 工具对接历史列表查询；响应裁剪（仅 `minor_histories`、`id`→`history_version_id`、4 字段、`create_time` AI 友好格式）建议落在此工具侧（两个消费方共享，避免 lark-cli / doubao 双实现漂移）。
-**边界**：只在 ToolsCall 上加工具 + 改 RecoverMsg 消费者；不新增独立 OpenAPI 路由、不改 `ai.ToolsCallRequest` thrift 契约、不改 `RecoverHistory` 回滚业务语义。
-**验收场景**：
-- Given lark-cli 经 `tools/invoke_read` 调用 `history_list`，Then 返回裁剪后的 `minor_histories`（4 字段，`history_version_id` 命名）。
-- Given lark-cli（scene=lark-cli）经 `history_revert` 发起回滚，When agg 消费对应 RecoverMsg，Then 构造的 recover cs 中 `memberId == 11`；doubao 场景下同一路径 `memberId == 10`。
-- Given 已发起回滚，When 调用 `history_revert_status`，Then 经 `QueryRecoverStatus` 返回可区分的回滚状态。
-
-### BE-5: sheet/data 透传 scene 并在 RecoverMsg 上新增 Scene 字段
-
-```yaml
-psm: bear.server.sheet_data
-repo: sheet/data
-module: biz/history
-be_deploy_required: true
-thrift_impact: 无
-api: bear.server.sheet_data::RecoverHistory / QueryRecoverStatus（复用）；MQ RecoverMsg 加 Scene 字段
-depends_on: []
-estimate: 1d
-```
-
-**调用的下游服务**：复用既有回滚链路（`biz/history/service/recover.go::RecoverHistory` → `infra/mq/producer/recover.go::SendRecoverMsg`）。
-**实现要点**：
-- **scene 透传**：把 agg 经 ctx 传入的 scene 接住，贯穿 `RecoverHistory`（`biz/history/service/recover.go`）到 `RecoverMsg` 构造处。
-- **RecoverMsg 加 `Scene` 字段**：在 `infra/mq/producer/recover.go` 的 `RecoverMsg` struct 上新增 `Scene` 字段并在投递时赋值。`RecoverMsg` 是 JSON Go struct（`recoverProducer.NewMessage`），**加字段非 thrift**——`thrift_impact: 无`。
-- `QueryRecoverStatus` 与回滚业务语义保持不变，仅承载 scene 透传。
-**边界**：不改回滚 / 历史快照业务逻辑；只加 scene 透传与 `RecoverMsg.Scene` 字段。
-**scene 透传方式（已定）**：经 **ctx baggage**（`metainfo` / 沿用既有 `utils.WithSceneDoubao(ctx)` 范式）从 agg 透传到 `RecoverHistory`，**不**在 `RecoverHistoryReq` thrift 上加字段 → 零 IDL 变更，`thrift_impact: 无`。
-**验收场景**：
-- Given agg 以 scene=lark-cli 调 `RecoverHistory`，Then 投递的 `RecoverMsg.Scene` 标识 lark-cli；doubao 同理。
-- Given 回滚已发起，When `QueryRecoverStatus(transactionID)`，Then 返回回滚状态（语义与现状一致）。
-- Given lark-cli（scene=lark-cli）经 `tools/invoke_write` 调用 `history_revert`，Then 构造的 recover cs 中 `memberId == 11`；doubao 场景下同一工具 `memberId == 10`。
-- Given 已发起回滚，When 调用 `history_revert_status`，Then 返回可区分的回滚状态。
-
-## API 契约引用
-
-本需求三个接口均为飞书电子表格已上线 space 接口，契约以各仓库最新 master 为准；对应 thrift 定义按 PRD 提示在 `lark/idl` 中搜索确认（实现阶段补全精确路径）：
-
-- 查列表：`/space/api/v3/sheet/histories`（取 `minor_histories`）
-- 回滚：`/space/api/v2/sheet/recover`
-- 回滚状态：`/api/v2/sheet/recover/status`
-
-> 契约本体不进本 spec 正文；精确 `lark/idl/...thrift::Service::Method` 路径在实现阶段确认并回填到对应 BE-* 的 `api` 字段说明。
-
-## 验收场景（汇总）
-
-- 列表：`+history-list` 仅返回 `minor_histories`，每条恰好 4 个字段，`id` 重命名为 `history_version_id`，`create_time` 为 AI 优化可读格式。
-- 回滚：`+history-revert` → agg `history_revert` → `sheet/data.RecoverHistory`（异步），受理后返回可查询标识。
-- memberId/scene：agg 消费 `RecoverMsg` 构造 recover cs 时，按 `RecoverMsg.Scene` 赋 `memberId`——lark-cli=11、doubao=10（facade-agg 侧单测断言）。
-- 状态：`+history-revert-status` → `QueryRecoverStatus` 能查询并区分回滚的进行中 / 成功 / 失败。
-- skill 同步：`sheet-skill-spec` 生成产物经 `sync:cli` 落地到 cli 仓，`check:all` 全绿。
-- 三个 shortcut 在 cli 中遵循统一的 Validate / DryRun / Execute 三段约定与现有 sheets shortcut 一致。
-
-## 非功能要求与约束
-
-- **复用既有模式**：3 个 shortcut 必须沿用 `shortcuts/sheets` 现有的 token 解析（`--spreadsheet-token` / `--token` 别名）、错误封装（`errs`）、`callTool`（`tools/invoke_read|write`）调用与 DryRun 渲染范式，不另起调用框架。facade-agg 侧必须复用现有 `ToolsCall` 接口扩展工具，不新增独立 OpenAPI 路由。
-- **AI 友好输出**：`+history-list` 的字段裁剪与 `create_time` 可读格式是硬约束（PRD「实现差异点」），目的是降低 AI 消费成本。
-- **工作流约束**：skill 内容与 flag 定义的唯一事实源是 `ee/sheet-skill-spec`；cli 仓的 `skills/lark-sheets/` 与 `shortcuts/sheets/data/` 为同步产物，不手改。
-- **回滚为异步**：`+history-revert` 与 `+history-revert-status` 分离，调用方需理解「发起 → 轮询」两步语义。
-- **事实基准**：所有外部仓库事实（space 接口、facade-agg 路由、sheet_data 能力）以各仓库最新 master 为准。
-
-## 安全设计
-
-- security_knowledge_ref: UNCONFIGURED
-- 风险判断依据: 未配置安全知识库，待安全侧补齐。需关注点（供安全侧复核）：`+history-revert` 是**写 / 不可逆**操作（覆盖当前表格内容到历史版本），必须校验操作者对目标表格具备编辑 / 回滚权限；历史版本列表可能暴露协作者操作痕迹（`action` 字段），需确认读权限边界。
-- 身份归属风险（memberId/scene）: `memberId` 须按 scene 正确赋值（lark-cli=11 / doubao=10）。错配会使回滚操作归属错误的调用方身份，影响审计与权限判定——属安全/审计相关，须在 agg RecoverMsg 消费侧保证赋值正确。
-- 需要安全侧补充: 回滚操作的权限校验口径、历史 `action` 字段的可见性范围是否需脱敏、memberId 与真实操作者身份的映射是否需对齐审计要求。
-
-## Codegen Delivery Plan
-
-applicable: true
-
-### A. Branch Plan
-
-| `key` | value |
-|---|---|
-| `psm` | `sheet.facade.agg` |
-| `business_branch` | `feat/sheet-history-revert` |
-| `generated_branch` | `N/A` |
-| `idl_branch` | `N/A` |
-| `kitex_branch` | `N/A` |
-
-### B. Delivery Targets
-
-| repo | required | branch | artifact_paths | reason |
-|---|---|---|---|---|
-| larksuite/cli | yes | feat/sheet-history-revert | shortcuts/sheets/ , skills/lark-sheets/ | 3 个 shortcut 实现 + 同步落地的 skill 正文与 flag 数据 |
-| ee/sheet-skill-spec | yes | feat/sheet-history-revert | canonical-spec/references/ , generated/lark-cli/ | skill / flag 上游事实源，生成后 sync 到 cli |
-| ee/sheet-facade-agg | yes | feat/sheet-history-revert | biz/handler/ | 现有 ToolsCall 新增 3 个工具 + scene 透传 + RecoverMsg 消费者按 scene 赋 memberId |
-| sheet/data | yes | feat/sheet-history-revert | biz/history/ , infra/mq/producer/ | RecoverHistory 透传 scene + RecoverMsg 新增 Scene 字段（JSON，非 thrift） |
-
-### C. Generation Decision
-
-| `key` | value |
-|---|---|
-| `needs_kitex_gen` | no |
-| `needs_apacana` | no |
-| `needs_kite_via_sdp` | no |
-| `decision_basis` | facade-agg 复用现有 ToolsCall 框架按 tool_name 注册 3 个工具（JSON input，不动 ai.ToolsCallRequest thrift）；sheet/data 仅在 RecoverMsg（JSON Go struct）加 Scene 字段 + 经 ctx baggage 透传 scene，复用既有 RecoverHistory/QueryRecoverStatus，均非 thrift；lark-cli 经现有 callTool 包装。scene 已定走 ctx baggage（不加 RecoverHistoryReq thrift 字段），无新增/修改 kitex/apacana/SDP 契约 |
-
-### D. Branch Naming Rule
-
-业务分支统一用 `feat/sheet-history-revert`；本需求无 codegen，故 `generated_branch` / `idl_branch` / `kitex_branch` 均为 `N/A`。
-
-## thrift 变更需求清单
-
-无（按推荐实现路径）。三个接口的能力已存在；本需求的新增内容是：facade-agg 在 ToolsCall 上注册 3 个工具（`tool_name`+JSON，不动 `ai.ToolsCallRequest`）、sheet/data 在 `RecoverMsg`（JSON Go struct）上加 `Scene` 字段、scene 经 **ctx baggage** 透传——均不涉及 thrift。
-
-**scene 透传方式：已定为 ctx baggage**（`metainfo` / 沿用既有 `utils.WithSceneDoubao(ctx)` 范式），明确**不**在 `bear.server.sheet_data` 的 `RecoverHistoryReq` thrift 上加字段。故本需求确无任何 thrift struct / RPC method / enum 的新增或修改，Generation Decision 三路保持 `no`、无 codegen。
-
-## N. AI Capability Manifest
-
-applicable: false
-
-本需求为确定性 CLI 命令封装，不含 LLM / prompt 驱动的 AI 能力。`+history-list` 中「`create_time` 序列化成 AI 优化格式」仅指对机器/AI 更易读的时间字符串格式化，属确定性数据转换，非 AI capability。

errs/ERROR_CONTRACT.md

@@ -6,16 +6,25 @@ envelope on stderr; **protocol adapters** mapping CLI errors into MCP /
 OAuth shapes; and **framework + business code** producing errors. This file
 is the single source of truth for all three.
 
-Something off in production? See **Troubleshooting**.
+This document describes the **typed authoring target**. The refactor lands
+in stages; some boundaries (e.g. `client.WrapDoAPIError`) still operate on
+legacy shapes today — see **Migration** for what is live in each stage.
+
+Migrating an `*output.ExitError` call site? See **Migration**. Something off
+in production? See **Troubleshooting**.
 
 ## Invariants
 
 1. Every error belongs to exactly one **Category**. The set is closed
    (`errs/category.go`); adding a member requires deliberate review.
-2. Every typed error has a **Subtype** — a stable
+2. Every **newly constructed** typed error has a **Subtype** — a stable
    lowercase-with-underscores identifier declared in `errs/subtypes*.go`.
-   Undeclared subtypes fail CI. Every error path constructs a typed
-   `*errs.*` error at its origin, so the constraint applies uniformly.
+   Undeclared subtypes fail CI. The constraint applies only to typed
+   `*errs.*` literals; stage-1 legacy `*core.ConfigError` flows via the
+   dispatcher's `asExitError` → legacy envelope path (not the typed
+   taxonomy) and is unaffected. `errcompat.PromoteConfigError` is a
+   stage-1 passthrough; its stage-2+ typed migration will subject the
+   promoted typed error to this Subtype constraint at that time.
 3. **`Category` + `Subtype`** are wire-stable identifiers consumers may
    branch on. Renaming either is a breaking change.
 4. `Code` is the upstream numeric code when known (e.g. Lark API code).
@@ -26,10 +35,11 @@ Something off in production? See **Troubleshooting**.
    unchanged across the `errors.As` / `errors.Unwrap` chain.
 7. For the typed-envelope path, exit codes derive from `Category` only
    via `output.ExitCodeForCategory` — including `SecurityPolicyError`,
-   which exits `6` via `CategoryPolicy`. `output.ErrBare(code)` is the
-   exception: it constructs an `*output.BareError`, a deliberate
-   silent-exit signal (stdout already carries the answer) that bypasses
-   the envelope (see **Predicate commands** below).
+   which exits `6` via `CategoryPolicy`. Unmigrated `*output.ExitError`
+   producers still carry a hand-set `Code` until they finish migrating.
+   `output.ErrBare(code)` is the lone exception: a deliberate
+   predicate-command signal that bypasses the envelope (see
+   **Predicate commands** below).
 
 ## Wire format
 
@@ -63,14 +73,13 @@ Typed errors render to **stderr** as one JSON object per process exit:
 | `error.hint` | informational | actionable recovery guidance |
 | `error.log_id` | informational | upstream request id (server-side trace) |
 | `error.retryable` | wire-stable | `true` when present; omitted when `false` |
-| `error.param` | per-Subtype-stable | single offending parameter (`ValidationError`); see **Validation parameters** |
-| `error.params` | per-Subtype-stable | per-parameter validation detail array (`ValidationError`); see **Validation parameters** |
 | per-Subtype extension fields | per-Subtype-stable | e.g. `missing_scopes`, `console_url`, `challenge_url` |
 
 `SecurityPolicyError` renders through the same typed envelope as every
 other category. `error.type` is `"policy"`, `error.subtype` is one of
 `challenge_required` / `access_denied`, and process exit is `6` via
-`CategoryPolicy`.
+`CategoryPolicy`. The legacy `auth_error` envelope at exit `1` has been
+retired.
 
 ## Categories
 
@@ -110,21 +119,20 @@ Canonical mapping: `internal/output/exitcode.go` `ExitCodeForCategory`.
      │
      ▼
   cmd/root.go handleRootError dispatches:
+     ├─ output.ErrBare(code)      → no envelope (stdout already written); exit = code
      ├─ typed (errs.ProblemOf)    → typed JSON envelope; exit = ExitCodeOf(err)
-     │     (includes *errs.SecurityPolicyError → policy envelope, exit 6;
-     │      *errs.ConfigError, constructed typed at origin)
-     ├─ *output.PartialFailureError → no stderr envelope (ok:false result already on stdout); exit = code
-     ├─ *output.BareError         → no envelope (stdout already written); exit = code
-     └─ Cobra usage error         → typed validation envelope (invalid_argument); exit 2
+     │     (includes *errs.SecurityPolicyError → policy envelope, exit 6)
+     ├─ *core.ConfigError         → promoted to typed via errcompat ↑
+     ├─ *output.ExitError         → legacy JSON envelope; exit = exitErr.Code
+     └─ untyped / Cobra error     → plain "Error: <msg>" (no envelope); exit 1
 ```
 
-The dispatcher emits a JSON envelope on stderr for both the typed branch and
-residual Cobra usage errors (missing required flag, unknown command,
-argument validation): the latter are classified into a typed validation
-envelope (`invalid_argument`) and exit `2`, matching the explicit flag and
-subcommand guards.
+Only the typed and `*output.ExitError` branches emit a JSON envelope on
+stderr. Untyped errors (including Cobra's "required flag missing" / unknown
+subcommand messages) print plain text and exit `1` — consumers must
+tolerate that fallback.
 
-### Predicate commands (`output.BareError`)
+### Predicate commands (`output.ErrBare`)
 
 A small class of commands is **predicates**: they answer a yes/no
 question and signal the answer through the shell exit code so callers
@@ -134,27 +142,19 @@ example — its `README` contract is `exit 0 = ok, 1 = missing`.
 These commands deliberately:
 
 1. write a structured JSON answer to **stdout** themselves, and
-2. return `output.ErrBare(exitCode)` — an `*output.BareError` — to
-   communicate the exit code to the dispatcher without producing a
-   `stderr` envelope.
+2. return `output.ErrBare(exitCode)` to communicate the exit code to
+   the dispatcher without producing a `stderr` envelope.
 
-`*output.BareError` is **not** an error in the typed-envelope sense — it
-carries no category, subtype, or message, only an exit code. It is a
-one-bit output-control signal that lives outside the contract for the
-same reason `grep -q` / `diff` / `systemctl is-active` set non-zero exit
-codes without printing anything to stderr: pollution of stderr by a
+`output.ErrBare` is **not** an error in the typed-envelope sense — it
+carries no category, subtype, or message. It is a one-bit output-
+control signal that lives outside the contract for the same reason
+`grep -q` / `diff` / `systemctl is-active` set non-zero exit codes
+without printing anything to stderr: pollution of stderr by a
 predicate's negative answer would break `2>/dev/null` log hygiene in
 caller scripts.
 
-A second class also uses `ErrBare`: a command that emits its own complete
-structured result envelope on **stdout** under `--json` (e.g. `update`, whose
-`{ok:false, error:{type, message}}` is its established output shape) and needs
-only the exit code conveyed, with no `stderr` envelope. Like a predicate, its
-answer is already on stdout; `ErrBare` carries the exit code alone.
-
-New code should not reach for `ErrBare` unless the command's full answer is
-already on stdout — a predicate's yes/no, or a self-contained result envelope
-as above. Anything whose error content must reach the caller on `stderr`
+New code should not reach for `ErrBare` unless the command is
+genuinely a predicate. Anything carrying recoverable error content
 belongs in a typed `*errs.XxxError` — or, for a batch result, in the
 partial-failure outcome below.
 
@@ -214,7 +214,7 @@ exitCode := output.ExitCodeOf(err) // ExitInternal for non-typed errors
 out=$(lark-cli ... 2>&1)
 code=$?
 
-# Defensive guard: tolerate any non-JSON output before parsing with jq.
+# Untyped / Cobra errors print plain text — guard before jq.
 if ! jq -e . >/dev/null 2>&1 <<<"$out"; then
     printf '%s\n' "$out" >&2
     exit "$code"
@@ -303,10 +303,9 @@ Do not pick exit codes by hand in new typed producers — `ExitCodeForCategory`
 maps `Category` to the shell code. A new exit-code requirement means a
 new `Category`, not a one-off override at the call site.
 
-(The only exits not derived from `Category` are the
-`*output.BareError` and the `*output.PartialFailureError` signals, which
-carry their own code by design and sit outside the typed-envelope contract —
-see **Predicate commands**.)
+(Legacy `*output.ExitError` retains hand-set codes until removal;
+`SecurityPolicyError` retains a hand-set code on main until the framework
+migration PR retires the carve-out — see **Migration**.)
 
 #### Split `Message`, `Hint`, and `Cause`
 
@@ -341,54 +340,15 @@ Message: fmt.Sprintf("request failed: %v — retry later", ioErr)
 // conflates what + what-to-do + cause into one string
 ```
 
-#### Validation parameters: `Param` and `Params`
+#### `ValidationError.Param` uses the `--flag` form
 
-`ValidationError` carries two additive parameter fields. Both are
-optional; a producer sets whichever fits the failure.
+When a `*ValidationError` originates from a flag value, `Param` holds the
+flag name with leading dashes (`"--priority"`, not `"priority"`). AI
+agents grep this field literally to surface "the bad flag was `--X`".
 
-**`Param string` (wire `param`)** — the single offending parameter. When a
-`*ValidationError` originates from a flag value, `Param` holds the flag
-name with leading dashes (`"--priority"`, not `"priority"`). AI agents
-grep this field literally to surface "the bad flag was `--X`". For
-positional arguments, use the canonical name without dashes
+For positional arguments, use the canonical name without dashes
 (`"target_user_id"`).
 
-**`Params []InvalidParam` (wire `params`)** — per-parameter validation
-detail, for failures that need to report *which* parameters failed and
-*why*, one entry each. Each `errs.InvalidParam` is
-`{Name, Reason string, Suggestions []string}`: `Name` identifies the
-parameter, `Reason` states why it failed, and the optional `Suggestions`
-(wire `suggestions`, omitted when empty) carries ranked candidate
-corrections an agent can retry with — the did-you-mean candidates for an
-unknown flag or subcommand — without parsing the human-facing `hint`. This
-is the CLI's rendering of the RFC 7807 `invalid-params` extension member
-(RFC 7807 §3.1). The wire key is `params`, not `invalid_params`: the
-enclosing envelope already carries `type:"validation"`, so the `invalid_`
-qualifier would be redundant on the wire.
-
-`Param` and `Params` are independent additive fields, not alternates of a
-single representation. Use `Param` for the common single-parameter error;
-use `Params` when one failure spans several parameters or needs a
-per-parameter reason. Set with `.WithParam("--flag")` / `.WithParams(...)`.
-
-A `params` wire example (multiple parameters each carrying a reason):
-
-```json
-{
-  "ok": false,
-  "identity": "user",
-  "error": {
-    "type": "validation",
-    "subtype": "invalid_argument",
-    "message": "2 parameters failed validation",
-    "params": [
-      { "name": "--start", "reason": "expected RFC3339, got \"yesterday\"" },
-      { "name": "--end", "reason": "must be after --start" }
-    ]
-  }
-}
-```
-
 ### Constructing typed errors
 
 Prefer the **builder API**. The constructor pins `Category` + `Subtype` +
@@ -418,11 +378,44 @@ them on the dynamic dispatch path where a `Problem` value is composed
 once and wrapped per Category branch. Outside that pattern, new code
 should reach for the builder.
 
-When the validation logic outgrows a single range check — multiple flags,
-format parsing, conditional rules — extract it into a helper that also returns
-the typed `*errs.ValidationError`; the helper, not `Execute`, sets `Param` (a
-helper bound to one shortcut is normal in this codebase; see `parseTimeRange`
-in `shortcuts/calendar/calendar_agenda.go`).
+Legacy helpers (`output.ErrValidation`, `output.ErrAuth`, `output.ErrNetwork`)
+remain callable during migration but are `// Deprecated:` — new code goes
+through the builder.
+
+#### Shortcut `Execute` walkthrough
+
+Adapted from `shortcuts/calendar/calendar_suggestion.go:222`, whose legacy
+form is `output.ErrValidation("--duration-minutes must be between 1 and
+1440")`. The typed migration target (builder form):
+
+```go
+Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
+    duration := runtime.Int("duration-minutes")
+    if duration < 1 || duration > 1440 {
+        return errs.NewValidationError(errs.SubtypeInvalidArgument,
+            "--duration-minutes must be between 1 and 1440, got %d", duration).
+            WithHint("pass a value in [1, 1440]").
+            WithParam("--duration-minutes")
+    }
+
+    _, err := runtime.DoAPI(req, opts)
+    if err != nil {
+        return err // already typed by the framework boundary; propagate
+    }
+    return nil
+}
+```
+
+Two patterns visible: a producer site (the typed `*errs.ValidationError`
+above) and a propagation site (the `return err` after `runtime.DoAPI`,
+applying [Propagate typed errors unchanged](#propagate-typed-errors-unchanged)).
+
+When the validation logic outgrows a single range check — multiple
+flags, format parsing, conditional rules — extract it into a helper that
+also returns the typed `*errs.ValidationError`. The helper, not
+`Execute`, sets `Param` (a helper bound to one shortcut is normal in
+this codebase; see `parseTimeRange` in
+`shortcuts/calendar/calendar_agenda.go:144`).
 
 ### Wrapping upstream errors
 
@@ -486,7 +479,7 @@ Rare; the existing structs cover the 9 Categories with room. If you must:
 
 1. In `errs/types.go`, add a new section with: the struct embedding `errs.Problem`, a nil-receiver-safe `Unwrap()` if it carries `Cause`, a `NewXxxError(subtype, format, args...)` constructor, and one chained `WithX` setter per extension field.
 2. Add an `IsXxx` predicate in `errs/predicates.go`.
-3. Add a wire-format pin in `errs/marshal_test.go` and a builder-chain pin in `errs/types_test.go`.
+3. Add a wire-format pin in `errs/marshal_test.go` and a builder-chain pin in `errs/types_builder_test.go`.
 
 `CheckProblemEmbed` enforces the `Problem` embed at lint time. New
 top-level wire fields are forbidden — per-Subtype data goes into the
@@ -495,33 +488,19 @@ top level.
 
 ## CI guards
 
-Two golangci-lint rules and the custom `errscontract` AST module enforce the
-contract; CI runs all three on every PR.
+| Check | Enforces | Where |
+|-------|----------|-------|
+| forbidigo | business path (`shortcuts/**`, `cmd/service/**`) must not call legacy `output.*` error constructors — route through the typed classifier | `.golangci.yml` |
+| `CheckProblemEmbed` | every exported `*Error` embeds `errs.Problem` | `lint/errscontract/` AST |
+| `CheckNoRegistrar` | no `mergeCodeMeta` / `RegisterServiceMap` from service code | `lint/errscontract/` AST |
+| `CheckAdHocSubtype` | `ad_hoc_*` Subtypes labeled for promotion (warn) | `lint/errscontract/` AST |
+| `CheckDeclaredSubtype` | every `Subtype:` value is a declared constant or `ad_hoc_*` | `lint/errscontract/` AST |
+| `CheckTypedErrorCompleteness` | every `*errs.<X>Error{Problem: errs.Problem{...}}` literal must set `Category`, `Subtype`, and `Message` | `lint/errscontract/` AST |
 
-**golangci-lint** — scopes are defined in `.golangci.yml` (not duplicated here,
-so this spec cannot drift from the lint config):
-
-| Rule | Enforces |
-|------|----------|
-| forbidigo `errs-no-bare-wrap` | a command / wire-boundary final error must be typed (`errs.NewXxxError`), never a bare `fmt.Errorf` / `errors.New`; a genuine intermediate wrap opts out with `//nolint:forbidigo` + a reason |
-| errorlint | every error wrap uses `%w` and every comparison uses `errors.Is` / `errors.As` — interior wraps stay legal but cannot break the `errors.Unwrap` chain the typed boundary relies on |
-
-**errscontract** (`lint/errscontract/`, a separate Go module so its
-`golang.org/x/tools` dependency stays out of the shipped binary; run locally
-with `go run -C lint . ..`):
-
-| Check | Enforces |
-|-------|----------|
-| `CheckNoLegacyEnvelopeLiteral` / `CheckNoLegacyCommonHelperCall` / `CheckNoLegacyRuntimeAPICall` | the removed `output.*` legacy error surface cannot be reintroduced anywhere |
-| `CheckProblemEmbed` | every exported `*Error` embeds `errs.Problem` |
-| `CheckDeclaredSubtype` | every `Subtype:` value is a declared constant (or `ad_hoc_*`) |
-| `CheckTypedErrorCompleteness` | every typed-error struct literal sets `Category`, `Subtype`, and `Message` |
-| `CheckAdHocSubtype` | `ad_hoc_*` Subtypes flagged for promotion (warning) |
-| `CheckNoRegistrar` | no `mergeCodeMeta` / `RegisterServiceMap` from service code |
-
-`errscontract` also carries framework-internal invariants (nil-safe `Unwrap`,
-builder immutability, unwrap symmetry); see `lint/errscontract/` for the full
-set and `lint/README.md` for adding a new lint domain.
+CI runs `lint/` on every PR. Locally: `go run -C lint . ..`. The
+lintcheck CLI lives in its own Go module so its `golang.org/x/tools`
+dependency stays out of the shipped `lark-cli` binary's module graph;
+see `lint/README.md` for how to add a new lint domain.
 
 ## Stability
 
@@ -531,13 +510,67 @@ set and `lint/README.md` for adding a new lint domain.
 | Additive | new Category, new declared Subtype, new extension field on an existing struct | minor release; consumers ignore unknown fields by contract |
 | Experimental | `ad_hoc_*` Subtypes; fields documented as such in `errs/types.go` | may change or be promoted/removed within one release |
 
+The deprecated `*output.ExitError` surface is outside these tiers — it
+will be removed once business migration completes.
+
+## Migration
+
+**Strategy shift (2026-05-26).** The original plan (`docs/design/errors-refactor/spec.md` v2.12 §9) was a centrally-driven 4-PR rollout — framework → auth domain → multi-pilot → full-repo + legacy removal. That plan is **superseded** by a hybrid model: framework owner ships framework-level hardening (including a typed `*errs.*Error` migration of `internal/**`) as one focused PR; business-domain typed migration is **self-service** via [`docs/errors-guide.md`](../docs/errors-guide.md) and the builder API, with no central sweep timeline.
+
+Why the shift: 800+ legacy call sites split across 8+ business domains do not all share a single reviewer's bandwidth, and the contract is now expressive enough that each domain owner can migrate their own code from the guide without coordinating with framework owner.
+
+### Current state
+
+1. **Framework slice — ✅ shipped (PR #984).** The `errs/` typed taxonomy, classifier (`internal/errclass`), promotion stub (`internal/errcompat`, passthrough), dispatcher hook (`WriteTypedErrorEnvelope`), and the `lint/errscontract` AST guards. Wire shapes preserved byte-for-byte versus pre-PR, with **one intentional semantic fix**: config-class errors (`*core.ConfigError`) now exit `3` instead of `2`, aligning with `ExitCodeForCategory` (config errors share the auth exit slot per the taxonomy). The classifier and promote helpers are *shipped but unused* in production paths — they exist so framework migration can plug in without re-architecting.
+
+2. **Builder API — ✅ shipped (this branch).** `errs/types.go` adds the canonical producer surface (`errs.NewXxxError(subtype, format, args...).WithX(...)`) for all 10 typed types, alongside each struct declaration. Constructor signature pins `Category` (via function name) and `Subtype` + `Message` (positional), so the producer cannot mis-specify any of the three identity fields. Optional fields chain through `.WithX(...)` setters that preserve the concrete pointer type.
+
+### Next: framework migration PR (planned)
+
+A single PR consolidates the work the original §9 spec split across PRs 2–4 — restricted to framework code, no business sweep:
+
+- **Migrate `internal/**` typed construction to the builder API.** ~16 call sites in `internal/errclass/classify.go` (BuildAPIError fanout), `internal/auth/transport.go` (SecurityPolicy), `internal/auth/uat_client.go`, `internal/errcompat/promote*.go`, `internal/client/client.go`, `internal/client/api_errors.go`.
+- **Land the framework-side semantic changes** previously scoped to spec §9 PR 2: `SecurityPolicyError` exit `1→6`, `WrapDoAPIError` typed (`*NetworkError` with subtype timeout/tls/dns/server_error/transport, `*InternalError` for JSON-decode), `WrapJSONResponseParseError` typed, `errcompat.PromoteConfigError` real Type routing, `PromoteAuthError` helper + dispatcher wiring, 10 credential Lark codes registered in codeMeta, 99991543 config classification, `resolveAccessToken` typed `*AuthenticationError`, `BuildAPIError` filling `*PermissionError.MissingScopes` / `Identity` / `ConsoleURL`, deletion of `scopeAwareChecker`.
+- **Add `forbidigo` rule** banning `output.Err*` constructors in `shortcuts/**` and `cmd/**` (mirrors the contract that new business code must use the builder).
+- **CHANGELOG** lists the resulting ~10 shell-exit-code shifts in one release entry (vs the spec §1 spread of 11 — the remaining one site lives in `task` business code).
+
+### Business-domain migration (self-service, no central timeline)
+
+Each business package migrates its own `output.Err*` call sites to the builder when convenient — typically batched within one domain. The guide at [`docs/errors-guide.md`](../docs/errors-guide.md) walks owners through the 8 typical error modes (validation / authorization / authentication / config / network / api / internal / policy) with real `file:line` examples from main. The three-layer extension model (add Subtype / add field / add Category) handles cases the existing taxonomy does not cover.
+
+Helper assertions accept both shapes during migration (see `shortcuts/mail/mail_shortcut_validation_test.go` `assertValidationError`) so domain migrations stay green incrementally.
+
+### Legacy removal
+
+Deferred until business migration completion approaches the asymptote. `Errorf`, `ErrAPI`, `ErrAuth`, `ErrWithHint`, `ErrBare`, `ClassifyLarkError`, `ErrDetail`, `ExitError`, and `ErrorEnvelope` are `// Deprecated:` today and stay callable. No fixed removal date.
+
+### Before / after at a call site
+
+```go
+// before (legacy)
+return output.ErrAPI(larkCode, "create event failed", resp.RawBody())
+
+// after (typed) — cc carries Brand / AppID / Identity from the caller's context
+return errclass.BuildAPIError(parsedResp, cc)
+```
+
+```go
+// before (legacy validation)
+return output.ErrValidation("--duration-minutes must be between 1 and 1440")
+
+// after (builder)
+return errs.NewValidationError(errs.SubtypeInvalidArgument,
+    "--duration-minutes must be between 1 and 1440, got %d", duration).
+    WithParam("--duration-minutes")
+```
+
 ## Troubleshooting
 
 **Envelope shows `type=api subtype=unknown` for what should be a more
 specific category.** The Lark code is unknown to `LookupCodeMeta` and fell
 through to the generic bucket (`internal/errclass/classify.go`). Add the
 code to `internal/errclass/codemeta_<service>.go` with the right Category
-and Subtype, plus a dispatch test in `internal/errclass/classify_test.go`.
+and Subtype, plus a dispatch test in `classify_test.go`.
 
 **Envelope shows `type=internal subtype=sdk_error`.** Origin is
 `client.WrapDoAPIError` taking the non-transport branch
@@ -580,6 +613,8 @@ string cannot be classified retroactively.
 - *Add a new condition?* → **Add a Subtype**
 - *Consume from a shell script?* → **Consumers / Shell / AI**
 - *Understand or fix a CI failure?* → **CI guards**
+- *Migrate a legacy `ExitError` call site?* → **Migration** + the
+  Deprecated note on the symbol being replaced.
 - *Read source.* → `errs/doc.go` → `errs/category.go` → `errs/types.go`
   → `errs/predicates.go` → `internal/errclass/` →
   `cmd/root.go` `handleRootError`.

errs/raw.go

@@ -1,29 +0,0 @@
-// Copyright (c) 2026 Lark Technologies Pte. Ltd.
-// SPDX-License-Identifier: MIT
-
-package errs
-
-import "errors"
-
-// rawPassthrough marks an error as raw passthrough: the dispatcher must not
-// rewrite its message or hint with local enrichment. Raw is
-// dispatcher-internal routing state, not a wire field. It is deliberately not
-// a typed taxonomy error (no embedded Problem) — it only wraps one.
-type rawPassthrough struct{ err error }
-
-func (e *rawPassthrough) Error() string { return e.err.Error() }
-func (e *rawPassthrough) Unwrap() error { return e.err }
-
-// MarkRaw wraps err as raw passthrough. MarkRaw(nil) returns nil.
-func MarkRaw(err error) error {
-	if err == nil {
-		return nil
-	}
-	return &rawPassthrough{err: err}
-}
-
-// IsRaw reports whether err or any error in its chain is marked raw.
-func IsRaw(err error) bool {
-	var raw *rawPassthrough
-	return errors.As(err, &raw)
-}

errs/raw_test.go

@@ -1,96 +0,0 @@
-// Copyright (c) 2026 Lark Technologies Pte. Ltd.
-// SPDX-License-Identifier: MIT
-
-package errs_test
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"testing"
-
-	"github.com/larksuite/cli/errs"
-)
-
-func TestMarkRawNilReturnsNil(t *testing.T) {
-	if got := errs.MarkRaw(nil); got != nil {
-		t.Fatalf("MarkRaw(nil) = %v, want nil", got)
-	}
-}
-
-func TestIsRaw(t *testing.T) {
-	base := fmt.Errorf("boom")
-
-	if !errs.IsRaw(errs.MarkRaw(base)) {
-		t.Errorf("IsRaw(MarkRaw(err)) = false, want true")
-	}
-	if errs.IsRaw(base) {
-		t.Errorf("IsRaw(bare err) = true, want false")
-	}
-	if errs.IsRaw(nil) {
-		t.Errorf("IsRaw(nil) = true, want false")
-	}
-
-	// Raw marking survives further wrapping above it in the chain.
-	wrapped := fmt.Errorf("outer: %w", errs.MarkRaw(base))
-	if !errs.IsRaw(wrapped) {
-		t.Errorf("IsRaw(wrap(MarkRaw(err))) = false, want true")
-	}
-}
-
-func TestMarkRawPreservesErrorMessage(t *testing.T) {
-	base := fmt.Errorf("boom")
-	if got := errs.MarkRaw(base).Error(); got != "boom" {
-		t.Fatalf("MarkRaw(err).Error() = %q, want %q", got, "boom")
-	}
-}
-
-func TestMarkRawPreservesErrorsIsChain(t *testing.T) {
-	sentinel := errors.New("sentinel")
-	wrapped := fmt.Errorf("ctx: %w", sentinel)
-
-	if !errors.Is(errs.MarkRaw(wrapped), sentinel) {
-		t.Fatalf("errors.Is(MarkRaw(err), sentinel) = false, want true")
-	}
-}
-
-func TestProblemOfPunchesThroughMarkRaw(t *testing.T) {
-	typed := errs.NewValidationError(errs.SubtypeInvalidArgument, "bad flag")
-	raw := errs.MarkRaw(typed)
-
-	p, ok := errs.ProblemOf(raw)
-	if !ok {
-		t.Fatalf("ProblemOf(MarkRaw(typed)) ok = false, want true")
-	}
-	if p.Category != errs.CategoryValidation {
-		t.Errorf("ProblemOf(MarkRaw(typed)).Category = %v, want %v", p.Category, errs.CategoryValidation)
-	}
-
-	// errors.As still finds the concrete typed error through the raw wrapper.
-	var ve *errs.ValidationError
-	if !errors.As(raw, &ve) {
-		t.Errorf("errors.As(MarkRaw(typed), *ValidationError) = false, want true")
-	}
-}
-
-// TestMarkRawUnwrapsToInnerTypedError pins the envelope-serialization
-// contract: UnwrapTypedError must return the inner concrete typed error,
-// not the rawPassthrough wrapper. The wrapper has no exported fields, so if it
-// were returned the JSON envelope would marshal to an empty "{}" error.
-func TestMarkRawUnwrapsToInnerTypedError(t *testing.T) {
-	base := errs.NewValidationError(errs.SubtypeInvalidArgument, "bad flag")
-	typed, ok := errs.UnwrapTypedError(errs.MarkRaw(base))
-	if !ok {
-		t.Fatal("UnwrapTypedError(MarkRaw(typed)) must find a typed error")
-	}
-	out, err := json.Marshal(typed)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if string(out) == "{}" {
-		t.Fatalf("UnwrapTypedError returned the opaque rawPassthrough wrapper; envelope would be empty: %s", out)
-	}
-	if got := errs.CategoryOf(typed); got != errs.CategoryValidation {
-		t.Fatalf("unwrapped category = %q, want validation", got)
-	}
-}

errs/types.go

@@ -77,10 +77,6 @@ type ValidationError struct {
 type InvalidParam struct {
 	Name   string `json:"name"`
 	Reason string `json:"reason"`
-	// Suggestions holds machine-readable, ranked candidate corrections for this
-	// parameter (e.g. did-you-mean flags or subcommands), so an agent can retry
-	// without parsing the human-facing hint. Omitted when there are none.
-	Suggestions []string `json:"suggestions,omitempty"`
 }
 
 // Unwrap exposes the wrapped cause so errors.Unwrap / errors.Is can traverse

errs/types_test.go

@@ -101,9 +101,9 @@ func TestSecurityPolicyErrorUnwrap(t *testing.T) {
 // interface would panic when the root dispatcher or any caller walks the
 // errors.Is / errors.Unwrap chain.
 //
-// The doc comments on these types claim "nil-receiver safe"; this test
-// pins that claim so the behavioral comment cannot silently drift from the
-// implementation.
+// The doc comments on these types claim "nil-receiver safe" but until this
+// test landed nothing actually pinned that claim — exactly the
+// behavioral-comment-without-test footgun caught in PR #984 review.
 func TestTypedErrors_UnwrapNilReceiver(t *testing.T) {
 	t.Helper()
 	checks := []struct {

events/im/message_receive.go

@@ -23,7 +23,7 @@ type ImMessageReceiveOutput struct {
 	ChatType    string `json:"chat_type,omitempty"    desc:"Conversation type"                                                                                                                                                                   enum:"p2p,group"`
 	MessageType string `json:"message_type,omitempty" desc:"Message type"`
 	SenderID    string `json:"sender_id,omitempty"    desc:"Sender open_id; prefixed with ou_"                                                                                                                                                   kind:"open_id"`
-	Content     string `json:"content,omitempty"      desc:"Message content. For most types (text/post/image/file/audio, etc.) this is pre-rendered human-readable text."`
+	Content     string `json:"content,omitempty"      desc:"Message content. For most types (text/post/image/file/audio, etc.) this is pre-rendered human-readable text. For interactive (cards) it stays as the raw JSON string and callers must fromjson to parse it."`
 }
 
 func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.RawEvent, _ map[string]string) (json.RawMessage, error) {
@@ -55,10 +55,8 @@ func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.Ra
 	}
 
 	msg := envelope.Event.Message
-	var content string
-	if msg.MessageType == "interactive" {
-		content = convertlib.ConvertInteractiveEventContent(msg.Content, msg.Mentions)
-	} else {
+	content := msg.Content
+	if msg.MessageType != "interactive" {
 		content = convertlib.ConvertBodyContent(msg.MessageType, &convertlib.ConvertContext{
 			RawContent: msg.Content,
 			MentionMap: convertlib.BuildMentionKeyMap(msg.Mentions),

extension/platform/abort.go

@@ -7,8 +7,8 @@ import "fmt"
 
 // AbortError is returned by a Wrapper that wants to short-circuit the
 // command chain (instead of calling next). The framework converts it
-// to a typed errs.* error so the JSON envelope carries the structured
-// fields agents expect.
+// to an *output.ExitError with type "hook" so the JSON envelope carries
+// the structured fields agents expect.
 //
 // HookName is the framework-namespaced name ("secaudit.approval"); the
 // Registrar adds the plugin-name prefix automatically.

extension/platform/errors.go

@@ -7,9 +7,9 @@ import "fmt"
 
 // CommandDeniedError is the structured error returned by a denyStub. Every
 // pruned-command execution path -- direct invocation, alias expansion,
-// internal call -- returns this exact type. The dispatcher converts it to a
-// typed errs.* error; the Layer field carries the denial layer for the
-// envelope.
+// internal call -- returns this exact type. It is wire-compatible with the
+// output.ExitError envelope via the Layer (== error.type) field and the
+// detail map produced by ExitError().
 //
 // Layer values:
 //

go.mod

@@ -27,8 +27,6 @@ require (
 	gopkg.in/yaml.v3 v3.0.1
 )
 
-require github.com/apache/arrow/go/v17 v17.0.0
-
 require (
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
@@ -44,17 +42,13 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
-	github.com/goccy/go-json v0.10.3 // indirect
 	github.com/godbus/dbus/v5 v5.2.2 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/google/flatbuffers v24.3.25+incompatible // indirect
 	github.com/gopherjs/gopherjs v1.17.2 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/itchyny/timefmt-go v0.1.6 // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
-	github.com/klauspost/compress v1.17.9 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
@@ -63,16 +57,10 @@ require (
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/termenv v0.16.0 // indirect
-	github.com/pierrec/lz4/v4 v4.1.21 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/smarty/assertions v1.15.0 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.0 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
-	github.com/zeebo/xxh3 v1.0.2 // indirect
-	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 // indirect
-	golang.org/x/mod v0.18.0 // indirect
-	golang.org/x/tools v0.22.0 // indirect
-	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
 )

go.sum

@@ -2,8 +2,6 @@ github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ
 github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
 github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
 github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
-github.com/apache/arrow/go/v17 v17.0.0 h1:RRR2bdqKcdbss9Gxy2NS/hK8i4LDMh23L6BbkN5+F54=
-github.com/apache/arrow/go/v17 v17.0.0/go.mod h1:jR7QHkODl15PfYyjM2nU+yTLScZ/qfj7OSUZmJ8putc=
 github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
 github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
@@ -54,16 +52,12 @@ github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkp
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4=
 github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
-github.com/goccy/go-json v0.10.3 h1:KZ5WoDbxAIgm2HNbYckL0se1fHD6rz5j4ywS6ebzDqA=
-github.com/goccy/go-json v0.10.3/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
 github.com/godbus/dbus/v5 v5.2.2 h1:TUR3TgtSVDmjiXOgAAyaZbYmIeP3DPkld3jgKGV8mXQ=
 github.com/godbus/dbus/v5 v5.2.2/go.mod h1:3AAv2+hPq5rdnr5txxxRwiGjPXamgoIHgz9FPBfOp3c=
 github.com/gofrs/flock v0.8.1 h1:+gYjHKf32LDeiEEFhQaotPbLuUXjY5ZqxKgXy7n59aw=
 github.com/gofrs/flock v0.8.1/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
-github.com/google/flatbuffers v24.3.25+incompatible h1:CX395cjN9Kke9mmalRoL3d81AtFUxJM+yDthflgJGkI=
-github.com/google/flatbuffers v24.3.25+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25dO0g=
@@ -80,16 +74,11 @@ github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA=
-github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
-github.com/klauspost/cpuid/v2 v2.2.8 h1:+StwCXwm9PdpiEkPyzBXIy+M9KUb4ODm0Zarf1kS5BM=
-github.com/klauspost/cpuid/v2 v2.2.8/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
-github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/larksuite/oapi-sdk-go/v3 v3.5.4 h1:U2S9x9LrfH++ZqJ+YAiUlqzCWJmVXhFdS8Z7rIBH8H0=
 github.com/larksuite/oapi-sdk-go/v3 v3.5.4/go.mod h1:ZEplY+kwuIrj/nqw5uSCINNATcH3KdxSN7y+UxYY5fI=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
@@ -108,8 +97,6 @@ github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELU
 github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo=
 github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
 github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
-github.com/pierrec/lz4/v4 v4.1.21 h1:yOVMLb6qSIDP67pl/5F7RepeKYu/VmTyEXvuMI5d9mQ=
-github.com/pierrec/lz4/v4 v4.1.21/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
@@ -146,20 +133,14 @@ github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/zalando/go-keyring v0.2.8 h1:6sD/Ucpl7jNq10rM2pgqTs0sZ9V3qMrqfIIy5YPccHs=
 github.com/zalando/go-keyring v0.2.8/go.mod h1:tsMo+VpRq5NGyKfxoBVjCuMrG47yj8cmakZDO5QGii0=
-github.com/zeebo/assert v1.3.0 h1:g7C04CbJuIDKNPFHmsk4hwZDO5O+kntRxzaUoNXj+IQ=
-github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
-github.com/zeebo/xxh3 v1.0.2 h1:xZmwmqxHZA8AI603jOQ0tMqmBr9lPeFwGg6d+xy9DC0=
-github.com/zeebo/xxh3 v1.0.2/go.mod h1:5NWz9Sef7zIDm2JHfFlcQvNekmcEl9ekUZQQKCYaDcA=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 h1:LfspQV/FYTatPTr/3HzIcmiUFH7PGP+OQ6mgDYo3yuQ=
-golang.org/x/exp v0.0.0-20240222234643-814bf88cf225/go.mod h1:CxmFvTBINI24O/j8iY7H1xHzx2i4OsyguNBmN/uPtqc=
+golang.org/x/exp v0.0.0-20231006140011-7918f672742d h1:jtJma62tbqLibJ5sFQz8bKtEM8rJBtfilJ2qTU199MI=
+golang.org/x/exp v0.0.0-20231006140011-7918f672742d/go.mod h1:ldy0pHrwJyGW56pPQzzkH36rKxoZW1tw7ZJpeKx+hdo=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
-golang.org/x/mod v0.18.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -175,7 +156,6 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
@@ -189,16 +169,10 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.22.0 h1:gqSGLZqv+AI9lIQzniJ0nZDRG5GBPsSi+DRNHWNz6yA=
-golang.org/x/tools v0.22.0/go.mod h1:aCwcsjqvq7Yqt6TNyX7QMU2enbQ/Gt0bo6krSeEri+c=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 h1:+cNy6SZtPcJQH3LJVLOSmiC7MMxXNOb3PU/VUEz+EhU=
-golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90=
-gonum.org/v1/gonum v0.15.0 h1:2lYxjRbTYyxkJxlhC+LvJIx3SsANPdRybu1tGj9/OrQ=
-gonum.org/v1/gonum v0.15.0/go.mod h1:xzZVBJBtS+Mz4q0Yl2LJTk+OxOg4jiXZ7qBoM0uISGo=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

internal/auth/errors.go

@@ -6,6 +6,7 @@ package auth
 import (
 	"errors"
 	"fmt"
+	"strings"
 
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/output"
@@ -21,10 +22,7 @@ var TokenRetryCodes = map[int]bool{
 	output.LarkErrTokenExpired: true,
 }
 
-// NeedAuthorizationError is the sentinel preserved in the Cause chain of the
-// typed missing-UAT error so existing errors.As(&NeedAuthorizationError{})
-// consumers keep matching after the construction site moved to the typed
-// taxonomy. It is never surfaced on the wire on its own.
+// NeedAuthorizationError is thrown when no valid UAT exists.
 type NeedAuthorizationError struct {
 	UserOpenId string
 }
@@ -34,31 +32,24 @@ func (e *NeedAuthorizationError) Error() string {
 	return fmt.Sprintf("%s (user: %s)", needUserAuthorizationMarker, e.UserOpenId)
 }
 
-// NewNeedUserAuthorizationError builds the typed *errs.AuthenticationError
-// returned when no valid UAT exists for userOpenID. The Message keeps the
-// need_user_authorization marker, the Hint converges on the same auth-login
-// recovery vocabulary as the token-missing surface in internal/client, and the
-// legacy *NeedAuthorizationError sentinel is preserved in the Cause chain for
-// errors.As / errors.Is traversal.
-func NewNeedUserAuthorizationError(userOpenID string) *errs.AuthenticationError {
-	return errs.NewAuthenticationError(errs.SubtypeTokenMissing,
-		"%s (user: %s)", needUserAuthorizationMarker, userOpenID).
-		WithUserOpenID(userOpenID).
-		WithHint("run: lark-cli auth login to re-authorize").
-		WithCause(&NeedAuthorizationError{UserOpenId: userOpenID})
-}
-
 // IsNeedUserAuthorizationError reports whether err represents a missing-UAT
-// failure. It matches the legacy *NeedAuthorizationError sentinel, which is
-// preserved in the Cause chain of the typed missing-UAT error, so errors.As
-// traverses into the typed *errs.AuthenticationError as well.
+// failure, either as the original auth error or as a wrapped ExitError.
 func IsNeedUserAuthorizationError(err error) bool {
 	if err == nil {
 		return false
 	}
 
 	var needAuthErr *NeedAuthorizationError
-	return errors.As(err, &needAuthErr)
+	if errors.As(err, &needAuthErr) {
+		return true
+	}
+
+	// Deprecated: legacy *output.ExitError / string-match branches; removed after typed migration.
+	var exitErr *output.ExitError
+	if errors.As(err, &exitErr) && exitErr.Detail != nil {
+		return strings.Contains(exitErr.Detail.Message, needUserAuthorizationMarker)
+	}
+	return strings.Contains(err.Error(), needUserAuthorizationMarker)
 }
 
 // SecurityPolicyError is preserved as a Go type alias so existing

internal/auth/errors_test.go

@@ -6,7 +6,7 @@ package auth
 import (
 	"testing"
 
-	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/output"
 )
 
 func TestIsNeedUserAuthorizationError(t *testing.T) {
@@ -22,16 +22,15 @@ func TestIsNeedUserAuthorizationError(t *testing.T) {
 		}
 	})
 
-	t.Run("typed missing-UAT error carries sentinel in cause", func(t *testing.T) {
-		// The typed constructor preserves the legacy sentinel in the Cause
-		// chain, so errors.As traverses into it.
-		if !IsNeedUserAuthorizationError(NewNeedUserAuthorizationError("u_1")) {
-			t.Fatal("expected typed missing-UAT error to match via its cause chain")
+	t.Run("wrapped exit error", func(t *testing.T) {
+		err := output.ErrNetwork("API call failed: %s", &NeedAuthorizationError{})
+		if !IsNeedUserAuthorizationError(err) {
+			t.Fatal("expected wrapped ExitError to match")
 		}
 	})
 
 	t.Run("other error", func(t *testing.T) {
-		err := errs.NewNetworkError(errs.SubtypeNetworkTransport, "API call failed: timeout")
+		err := output.ErrNetwork("API call failed: timeout")
 		if IsNeedUserAuthorizationError(err) {
 			t.Fatal("expected unrelated error not to match")
 		}

internal/auth/uat_client.go

@@ -71,7 +71,7 @@ var refreshLocks sync.Map
 func GetValidAccessToken(httpClient *http.Client, opts UATCallOptions) (string, error) {
 	stored := GetStoredToken(opts.AppId, opts.UserOpenId)
 	if stored == nil {
-		return "", NewNeedUserAuthorizationError(opts.UserOpenId)
+		return "", &NeedAuthorizationError{UserOpenId: opts.UserOpenId}
 	}
 
 	status := TokenStatus(stored)
@@ -86,7 +86,7 @@ func GetValidAccessToken(httpClient *http.Client, opts UATCallOptions) (string,
 			return "", err
 		}
 		if refreshed == nil {
-			return "", NewNeedUserAuthorizationError(opts.UserOpenId)
+			return "", &NeedAuthorizationError{UserOpenId: opts.UserOpenId}
 		}
 		return refreshed.AccessToken, nil
 	}
@@ -99,7 +99,7 @@ func GetValidAccessToken(httpClient *http.Client, opts UATCallOptions) (string,
 			fmt.Fprintf(os.Stderr, "[lark-cli] [WARN] uat-client: failed to remove token: %v\n", err)
 		}
 	}
-	return "", NewNeedUserAuthorizationError(opts.UserOpenId)
+	return "", &NeedAuthorizationError{UserOpenId: opts.UserOpenId}
 }
 
 // refreshWithLock acquires a file lock before attempting to refresh the token.

internal/client/api_errors_test.go

@@ -16,6 +16,7 @@ import (
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 
 	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/output"
 )
 
 // ─────────────────────────────────────────────────────────────────────────────
@@ -263,16 +264,19 @@ func TestWrapJSONResponseParseError_Nil(t *testing.T) {
 // Cross-cutting: existing tests already in this file (kept and adjusted below).
 // ─────────────────────────────────────────────────────────────────────────────
 
-// TestWrapDoAPIError_UntypedErrorRoutesToNetwork pins that a plain untyped
-// error (no embedded Problem, no JSON-decode chain) is NOT pass-through —
-// only typed *errs.* values are. It routes to the network branch with the
-// fallback transport subtype.
-func TestWrapDoAPIError_UntypedErrorRoutesToNetwork(t *testing.T) {
-	got := WrapDoAPIError(errors.New("no access token available for user"))
+// TestWrapDoAPIError_LegacyExitErrorNoLongerPassesThrough pins that legacy
+// *output.ExitError (auth/validation/api flavours) is NOT a problemCarrier
+// and is therefore not pass-through — only typed *errs.* values are.
+// Legacy values fall through to the network/JSON branches based on their
+// inner shape.
+func TestWrapDoAPIError_LegacyExitErrorNoLongerPassesThrough(t *testing.T) {
+	// An *output.ErrAuth has no embedded Problem and no JSON-decode chain;
+	// it routes to the network branch with the fallback transport subtype.
+	got := WrapDoAPIError(output.ErrAuth("no access token available for user"))
 
 	var ne *errs.NetworkError
 	if !errors.As(got, &ne) {
-		t.Fatalf("expected *errs.NetworkError for an untyped error, got %T (%v)", got, got)
+		t.Fatalf("expected *errs.NetworkError (legacy ExitError no longer pass-through), got %T (%v)", got, got)
 	}
 	// Sanity: not silently re-classified as JSON-decode.
 	var ie *errs.InternalError

internal/client/client.go

@@ -19,9 +19,11 @@ import (
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 
 	"github.com/larksuite/cli/errs"
+	internalauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/credential"
 	"github.com/larksuite/cli/internal/errclass"
+	"github.com/larksuite/cli/internal/errcompat"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/util"
 )
@@ -52,11 +54,16 @@ func (c *APIClient) resolveAccessToken(ctx context.Context, as core.Identity) (s
 		if errors.As(err, &unavailableErr) {
 			return "", newTokenMissingError(as, unavailableErr)
 		}
-		// The credential chain already emits a typed *errs.AuthenticationError
-		// for the missing-UAT case (e.g. UAT refresh returned
-		// need_user_authorization), so it flows through unchanged: the
-		// outer-typed gate in cmd/root.go and the idempotent WrapDoAPIError
-		// both preserve its authentication category and exit 3.
+		// NeedAuthorizationError from the credential chain (e.g. UAT refresh
+		// returned need_user_authorization) must surface as typed
+		// AuthenticationError. Without this, WrapDoAPIError would wrap the
+		// raw err as NetworkError, and cmd/root.go's outer-typed gate would
+		// then skip PromoteAuthError — leaving the user with exit 4 and no
+		// auth-login hint instead of exit 3 typed authentication.
+		var needAuthErr *internalauth.NeedAuthorizationError
+		if errors.As(err, &needAuthErr) {
+			return "", errcompat.PromoteAuthError(needAuthErr)
+		}
 		return "", err
 	}
 	if result.Token == "" {
@@ -113,22 +120,24 @@ func (c *APIClient) buildApiReq(request RawApiRequest) (*larkcore.ApiReq, []lark
 //
 // SDK Do() failures are normalised through WrapDoAPIError so every caller
 // (cmd/api, RuntimeContext, shortcuts) gets the same wire shape without
-// each one remembering to wrap. WrapDoAPIError classifies a raw transport
-// failure into a typed *errs.NetworkError / *errs.InternalError per the
-// contract in errs/ERROR_CONTRACT.md. Errors that arrive already-classified
-// (a typed *errs.* from resolveAccessToken's missing-credential paths or
-// elsewhere) flow through unchanged.
+// each one remembering to wrap. Today that wire shape is still the legacy
+// *output.ExitError envelope (network / api_error); future framework-
+// boundary migration flips WrapDoAPIError to typed *errs.NetworkError /
+// *errs.InternalError per the contract in errs/ERROR_CONTRACT.md.
+// Errors that arrive already-classified (legacy *output.ExitError from
+// resolveAccessToken's missing-credential paths, or a typed *errs.*) flow
+// through unchanged.
 func (c *APIClient) DoSDKRequest(ctx context.Context, req *larkcore.ApiReq, as core.Identity, extraOpts ...larkcore.RequestOptionFunc) (*larkcore.ApiResp, error) {
 	var opts []larkcore.RequestOptionFunc
 
 	token, err := c.resolveAccessToken(ctx, as)
 	if err != nil {
 		// WrapDoAPIError is idempotent on already-classified errors:
-		// the typed *errs.AuthenticationError that resolveAccessToken returns
-		// for missing tokens passes through with its auth category and exit 3
-		// intact, and any other typed *errs.* error from the credential chain
-		// survives the same way. Only stray untyped errors (raw fmt.Errorf)
-		// get the transport-or-internal fallback.
+		// the *output.ExitError that resolveAccessToken returns for missing
+		// tokens (via output.ErrAuth) passes through with its auth category
+		// and exit 3 intact, and any future typed *errs.* error from the
+		// credential chain survives the same way. Only stray untyped errors
+		// (raw fmt.Errorf) get the transport-or-internal fallback.
 		return nil, WrapDoAPIError(err)
 	}
 	if as.IsBot() {
@@ -153,7 +162,7 @@ func (c *APIClient) DoSDKRequest(ctx context.Context, req *larkcore.ApiReq, as c
 // Auth is resolved via Credential (same as DoSDKRequest). Security headers and
 // any extra headers from opts are applied automatically.
 // HTTP errors (status >= 400) are handled internally: the body is read (up to 4 KB),
-// closed, and returned as a typed *errs.NetworkError — callers only receive successful responses.
+// closed, and returned as an output.ErrNetwork — callers only receive successful responses.
 func (c *APIClient) DoStream(ctx context.Context, req *larkcore.ApiReq, as core.Identity, opts ...Option) (*http.Response, error) {
 	cfg := buildConfig(opts)
 
@@ -323,10 +332,10 @@ func (c *APIClient) DoAPI(ctx context.Context, request RawApiRequest) (*larkcore
 //
 // JSON parse failures are wrapped via WrapJSONResponseParseError so callers
 // (notably the pagination loop and --page-all paths in cmd/api / cmd/service)
-// see a typed *errs.InternalError (invalid_response) instead of a bare
-// fmt.Errorf — otherwise an empty or malformed page body would surface to the
-// root handler as a plain-text "Error: ..." line and bypass the JSON stderr
-// envelope contract.
+// see an *output.ExitError envelope (api_error for malformed JSON, network
+// for everything else) instead of a bare fmt.Errorf — otherwise an empty
+// or malformed page body would surface to the root handler as a plain-text
+// "Error: ..." line and bypass the JSON stderr envelope contract.
 func (c *APIClient) CallAPI(ctx context.Context, request RawApiRequest) (interface{}, error) {
 	resp, err := c.DoAPI(ctx, request)
 	if err != nil {

internal/client/client_test.go

@@ -528,7 +528,8 @@ func (f *failingTokenResolver) ResolveToken(_ context.Context, spec credential.T
 
 // TestResolveAccessToken_NoToken_ReturnsTypedAuthenticationError pins that
 // the missing-token path of resolveAccessToken returns the typed
-// *errs.AuthenticationError{Subtype: TokenMissing}.
+// *errs.AuthenticationError{Subtype: TokenMissing} rather than the legacy
+// *output.ExitError envelope.
 func TestResolveAccessToken_NoToken_ReturnsTypedAuthenticationError(t *testing.T) {
 	ac := &APIClient{
 		HTTP:       &http.Client{},
@@ -553,22 +554,24 @@ func TestResolveAccessToken_NoToken_ReturnsTypedAuthenticationError(t *testing.T
 	}
 }
 
-// needAuthTokenResolver mirrors the production credential chain: the
-// missing-UAT case is constructed typed at the source (internal/auth) and
-// carries the legacy *NeedAuthorizationError sentinel in its Cause chain. It
-// must surface as a typed AuthenticationError and flow through resolveAccessToken
-// and WrapDoAPIError unchanged (never mis-classified as NetworkError).
+// needAuthTokenResolver returns *internalauth.NeedAuthorizationError to
+// exercise the P1 regression path: a credential chain that signals
+// "user must re-authorize" must surface as typed AuthenticationError, not
+// fall through to the generic err return which WrapDoAPIError would then
+// wrap as NetworkError (the outer-typed dispatcher gate would then skip
+// PromoteAuthError and the user would see exit 4 with no auth-login hint).
 type needAuthTokenResolver struct {
 	userOpenID string
 }
 
 func (f *needAuthTokenResolver) ResolveToken(_ context.Context, _ credential.TokenSpec) (*credential.TokenResult, error) {
-	return nil, internalauth.NewNeedUserAuthorizationError(f.userOpenID)
+	return nil, &internalauth.NeedAuthorizationError{UserOpenId: f.userOpenID}
 }
 
 // TestResolveAccessToken_NeedAuthorization_SurfacesAsTypedAuthentication
-// pins that the typed missing-UAT error from the credential chain reaches the
-// caller as a typed AuthenticationError with the marker and sentinel intact.
+// is the codex P1 regression test: without this branch, the credential
+// chain's NeedAuthorizationError would propagate raw and WrapDoAPIError
+// would mis-classify it as NetworkError.
 func TestResolveAccessToken_NeedAuthorization_SurfacesAsTypedAuthentication(t *testing.T) {
 	ac := &APIClient{
 		HTTP:       &http.Client{},
@@ -674,7 +677,7 @@ func TestDoSDKRequest_TransportFailureWrapsAsNetwork(t *testing.T) {
 // *errs.InternalError{Subtype: invalid_response} with the rawAPIJSONHint
 // preserved on Problem.Hint. Pagination / cmd/api / cmd/service callers see
 // the typed JSON stderr envelope (exit 5/internal) — wire `type` is
-// "internal".
+// "internal", not the legacy "api_error".
 func TestCallAPI_ParseJSONFailureWrapsAsAPI(t *testing.T) {
 	rt := roundTripFunc(func(_ *http.Request) (*http.Response, error) {
 		return &http.Response{

internal/client/response.go

@@ -41,26 +41,6 @@ type ResponseOptions struct {
 	CheckError func(result interface{}, identity core.Identity) error
 }
 
-// httpStatusError classifies an HTTP error response by status when the body
-// carries no usable business error: 5xx → NetworkError (server tier), 404 →
-// APIError/not_found, any other 4xx → APIError/unknown. Used wherever a
-// status >= 400 must not be swallowed — a non-JSON body, an unparseable body,
-// or a JSON body whose business code is 0.
-func httpStatusError(status int, rawBody []byte) error {
-	body := util.TruncateStrWithEllipsis(strings.TrimSpace(string(rawBody)), 500)
-	if status >= 500 {
-		return errs.NewNetworkError(errs.SubtypeNetworkServer,
-			"HTTP %d: %s", status, body).
-			WithCode(status)
-	}
-	subtype := errs.SubtypeUnknown
-	if status == 404 {
-		subtype = errs.SubtypeNotFound
-	}
-	return errs.NewAPIError(subtype, "HTTP %d: %s", status, body).
-		WithCode(status)
-}
-
 // HandleResponse routes a raw *larkcore.ApiResp to the appropriate output:
 //  1. If Content-Type is JSON, check for business errors first (even with --output).
 //  2. If --output is set and response is not a JSON error, save to file.
@@ -82,33 +62,33 @@ func HandleResponse(resp *larkcore.ApiResp, opts ResponseOptions) error {
 		}
 	}
 
-	// Non-JSON error responses (e.g. 404 text/plain from gateway): return error
-	// directly instead of falling through to the binary-save path.
+	// Non-JSON error responses (e.g. 404 text/plain from gateway): return error directly
+	// instead of falling through to the binary-save path.
+	// 5xx → typed NetworkError (server/transport tier); 4xx → typed APIError (client error).
 	if resp.StatusCode >= 400 && !IsJSONContentType(ct) && ct != "" {
-		return httpStatusError(resp.StatusCode, resp.RawBody)
+		body := util.TruncateStrWithEllipsis(strings.TrimSpace(string(resp.RawBody)), 500)
+		if resp.StatusCode >= 500 {
+			return errs.NewNetworkError(errs.SubtypeNetworkServer,
+				"HTTP %d: %s", resp.StatusCode, body).
+				WithCode(resp.StatusCode)
+		}
+		subtype := errs.SubtypeUnknown
+		if resp.StatusCode == 404 {
+			subtype = errs.SubtypeNotFound
+		}
+		return errs.NewAPIError(subtype, "HTTP %d: %s", resp.StatusCode, body).
+			WithCode(resp.StatusCode)
 	}
 
 	// JSON responses: always check for business errors before saving.
 	if IsJSONContentType(ct) || ct == "" {
 		result, err := ParseJSONResponse(resp)
 		if err != nil {
-			// An unparseable / empty body on an HTTP error (common with a
-			// missing Content-Type) must be classified by status, not reported
-			// as an internal decode failure, matching the non-JSON branch above.
-			if resp.StatusCode >= 400 {
-				return httpStatusError(resp.StatusCode, resp.RawBody)
-			}
 			return WrapJSONResponseParseError(err, resp.RawBody)
 		}
 		if apiErr := check(result, identity); apiErr != nil {
 			return apiErr
 		}
-		// CheckResponse treats business code 0 as success, so a 4xx/5xx whose
-		// JSON body omits a non-zero code would otherwise be served as a
-		// successful result. Classify by HTTP status so it is never swallowed.
-		if resp.StatusCode >= 400 {
-			return httpStatusError(resp.StatusCode, resp.RawBody)
-		}
 		if opts.OutputPath != "" {
 			// File downloads keep the existing raw-response scan path because the
 			// saved payload is the API response body, not the success envelope.

internal/client/response_test.go

@@ -372,76 +372,6 @@ func TestHandleResponse_NonJSONError_502(t *testing.T) {
 	}
 }
 
-// TestHandleResponse_JSONErrorWithZeroBodyCodeNotSwallowed pins that an HTTP
-// status error whose JSON body omits a non-zero business code (e.g. 400 +
-// {"code":0,...}) still surfaces a typed error. CheckResponse treats code 0 as
-// success, so without the HTTP-status fallback a 4xx would be served as a
-// successful result and exit 0.
-func TestHandleResponse_JSONErrorWithZeroBodyCodeNotSwallowed(t *testing.T) {
-	resp := newApiRespWithStatus(400, []byte(`{"code":0,"msg":"bad request"}`),
-		map[string]string{"Content-Type": "application/json"})
-
-	var out, errOut bytes.Buffer
-	err := HandleResponse(resp, ResponseOptions{Out: &out, ErrOut: &errOut, FileIO: &localfileio.LocalFileIO{}})
-	if err == nil {
-		t.Fatalf("HTTP 400 with code:0 body must not be swallowed; got out=%q err=nil", out.String())
-	}
-	var apiErr *errs.APIError
-	if !errors.As(err, &apiErr) {
-		t.Errorf("expected *errs.APIError, got %T", err)
-	}
-	if !strings.Contains(err.Error(), "HTTP 400") {
-		t.Errorf("expected 'HTTP 400' in error, got: %s", err.Error())
-	}
-	if output.ExitCodeOf(err) != output.ExitAPI {
-		t.Errorf("expected ExitAPI (%d), got %d", output.ExitAPI, output.ExitCodeOf(err))
-	}
-}
-
-// TestHandleResponse_NoContentTypeError_404 pins that a 404 with an empty body
-// and no Content-Type header — which falls into the JSON branch and fails to
-// parse — is classified by HTTP status (api/not_found), not reported as an
-// internal decode failure.
-func TestHandleResponse_NoContentTypeError_404(t *testing.T) {
-	resp := newApiRespWithStatus(404, []byte(""), nil)
-
-	var out, errOut bytes.Buffer
-	err := HandleResponse(resp, ResponseOptions{Out: &out, ErrOut: &errOut, FileIO: &localfileio.LocalFileIO{}})
-	if err == nil {
-		t.Fatal("expected error for 404 with empty body and no Content-Type")
-	}
-	var apiErr *errs.APIError
-	if !errors.As(err, &apiErr) {
-		t.Errorf("expected *errs.APIError, got %T", err)
-	}
-	if apiErr != nil && apiErr.Subtype != errs.SubtypeNotFound {
-		t.Errorf("subtype = %q, want not_found", apiErr.Subtype)
-	}
-	if output.ExitCodeOf(err) != output.ExitAPI {
-		t.Errorf("expected ExitAPI (%d), got %d", output.ExitAPI, output.ExitCodeOf(err))
-	}
-}
-
-// TestHandleResponse_NoContentTypeError_502 pins that a 5xx with a non-JSON
-// body and no Content-Type is classified as a NetworkError by status, not an
-// internal decode failure.
-func TestHandleResponse_NoContentTypeError_502(t *testing.T) {
-	resp := newApiRespWithStatus(502, []byte("<html>Bad Gateway</html>"), nil)
-
-	var out, errOut bytes.Buffer
-	err := HandleResponse(resp, ResponseOptions{Out: &out, ErrOut: &errOut, FileIO: &localfileio.LocalFileIO{}})
-	if err == nil {
-		t.Fatal("expected error for 502 with non-JSON body and no Content-Type")
-	}
-	var netErr *errs.NetworkError
-	if !errors.As(err, &netErr) {
-		t.Errorf("expected *errs.NetworkError, got %T", err)
-	}
-	if output.ExitCodeOf(err) != output.ExitNetwork {
-		t.Errorf("expected ExitNetwork (%d) for 5xx, got %d", output.ExitNetwork, output.ExitCodeOf(err))
-	}
-}
-
 func TestHandleResponse_200TextPlain_SavesFile(t *testing.T) {
 	dir := t.TempDir()
 	origWd, _ := os.Getwd()

internal/cmdpolicy/aggregation_test.go

@@ -4,13 +4,13 @@
 package cmdpolicy_test
 
 import (
+	"encoding/json"
 	"errors"
 	"strings"
 	"testing"
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -168,15 +168,10 @@ func TestBuildDeniedByPath_hybridParentOwnAllowedKeepsAlive(t *testing.T) {
 	}
 }
 
-// Apply returns a typed *errs.ValidationError that exposes BOTH paths
-// consumers rely on:
-//  1. cmd/root.go's envelope writer (errs.ProblemOf / failed_precondition
-//     subtype + exit code 2)
-//  2. in-process consumers extracting the platform.CommandDeniedError as
-//     the typed error's Cause via errors.As
-//
-// The policy metadata (layer / policy_source / rule_name / reason_code)
-// is folded into the Hint text rather than a separate detail map.
+// Apply with the wrapped *output.ExitError exposes BOTH paths consumers
+// rely on:
+//  1. cmd/root.go's envelope writer (errors.As on *output.ExitError)
+//  2. in-process consumers extracting the platform.CommandDeniedError
 func TestApply_runEReturnsExitErrorAndCommandDeniedError(t *testing.T) {
 	root := buildTree()
 	denied := map[string]cmdpolicy.Denial{
@@ -196,33 +191,31 @@ func TestApply_runEReturnsExitErrorAndCommandDeniedError(t *testing.T) {
 		t.Fatalf("denied command should return error")
 	}
 
-	// Path 1: typed-envelope view. The denial is a failed_precondition
-	// ValidationError so cmd/root.go renders the structured envelope and
-	// the process exits 2 (ExitValidation).
-	var ve *errs.ValidationError
-	if !errors.As(err, &ve) {
-		t.Fatalf("error chain must contain *errs.ValidationError, got %T", err)
+	// Path 1: envelope-writer view.
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("error chain must contain *output.ExitError, got %T", err)
 	}
-	if ve.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want %q", ve.Subtype, errs.SubtypeFailedPrecondition)
+	if exitErr.Detail == nil {
+		t.Fatalf("ExitError.Detail required for envelope to render")
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want ExitValidation (%d)", code, output.ExitValidation)
+	if exitErr.Detail.Type != "command_denied" {
+		t.Errorf("envelope error.type = %q, want command_denied", exitErr.Detail.Type)
 	}
-	// The policy metadata is folded into the Hint text: reason_code,
-	// policy_source, and rule_name must all be discoverable there.
-	if !strings.Contains(ve.Hint, "write_not_allowed") {
-		t.Errorf("hint must carry reason_code write_not_allowed, got %q", ve.Hint)
+	// JSON envelope shape: detail.reason_code must be present and
+	// match the closed enum.
+	detailMap, ok := exitErr.Detail.Detail.(map[string]any)
+	if !ok {
+		t.Fatalf("envelope detail should be map[string]any, got %T", exitErr.Detail.Detail)
 	}
-	if !strings.Contains(ve.Hint, "plugin:secaudit") {
-		t.Errorf("hint must carry policy_source plugin:secaudit, got %q", ve.Hint)
+	if detailMap["reason_code"] != "write_not_allowed" {
+		t.Errorf("detail.reason_code = %v, want write_not_allowed", detailMap["reason_code"])
 	}
-	if !strings.Contains(ve.Hint, "secaudit-policy") {
-		t.Errorf("hint must carry rule_name secaudit-policy, got %q", ve.Hint)
+	if detailMap["policy_source"] != "plugin:secaudit" {
+		t.Errorf("detail.policy_source = %v, want plugin:secaudit", detailMap["policy_source"])
 	}
 
-	// Path 2: in-process typed-error view -- the *platform.CommandDeniedError
-	// is preserved as the Cause so errors.As still reaches it.
+	// Path 2: in-process typed-error view.
 	var cd *platform.CommandDeniedError
 	if !errors.As(err, &cd) {
 		t.Fatalf("error chain must expose *platform.CommandDeniedError")
@@ -230,6 +223,21 @@ func TestApply_runEReturnsExitErrorAndCommandDeniedError(t *testing.T) {
 	if cd.Path != "docs/+update" || cd.ReasonCode != "write_not_allowed" {
 		t.Errorf("CommandDeniedError = %+v", cd)
 	}
+
+	// Envelope round-trip sanity (the actual JSON cmd/root.go would emit).
+	var buf strings.Builder
+	output.WriteErrorEnvelope(&buf, exitErr, "user")
+	if !strings.Contains(buf.String(), `"type": "command_denied"`) {
+		t.Errorf("envelope JSON missing type=command_denied, got:\n%s", buf.String())
+	}
+	if !strings.Contains(buf.String(), `"reason_code": "write_not_allowed"`) {
+		t.Errorf("envelope JSON missing reason_code, got:\n%s", buf.String())
+	}
+	// Round-trip parse to verify it's well-formed JSON.
+	var parsed map[string]any
+	if err := json.Unmarshal([]byte(buf.String()), &parsed); err != nil {
+		t.Fatalf("envelope JSON malformed: %v\n%s", err, buf.String())
+	}
 }
 
 // Regression: a pure parent group carrying AnnotationPureGroup must be

internal/cmdpolicy/apply.go

@@ -6,8 +6,8 @@ package cmdpolicy
 import (
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
+	"github.com/larksuite/cli/internal/output"
 )
 
 // Apply walks the command tree and installs denyStubs for every path in
@@ -24,11 +24,12 @@ import (
 //     cobra would intercept the call
 //     with "missing required flag"
 //     before we can return our error
-//  3. cmd.RunE = denyStub(denial)      -- returns a typed
-//     *errs.ValidationError so
+//  3. cmd.RunE = denyStub(denial)      -- returns *output.ExitError so
 //     cmd/root.go's envelope writer
-//     emits structured JSON; the
-//     wrapped error chain still
+//     emits structured JSON (with
+//     error.type = denial.Layer and
+//     detail.reason_code = ReasonCode);
+//     the wrapped error chain still
 //     exposes *platform.CommandDeniedError
 //     via errors.As for in-process
 //     consumers
@@ -111,17 +112,42 @@ func CommandDeniedFromDenial(path string, d Denial) *platform.CommandDeniedError
 	}
 }
 
-// BuildDenialError is the default typed error for user-layer denials:
-// Message comes from CommandDeniedError.Error(); the policy layer, source,
-// rule name, and reason code are folded into the Hint. The
-// *platform.CommandDeniedError is preserved as the Cause so errors.As
-// works for in-process consumers.
-func BuildDenialError(path string, d Denial) *errs.ValidationError {
+// DenialDetailMap is the canonical detail.* shape every `command_denied`
+// envelope shares (see docs/extension/reason-codes.md). Use it as
+// ErrDetail.Detail when constructing an envelope outside BuildDenialError.
+func DenialDetailMap(cd *platform.CommandDeniedError) map[string]any {
+	return map[string]any{
+		"path":          cd.Path,
+		"layer":         cd.Layer,
+		"policy_source": cd.PolicySource,
+		"rule_name":     cd.RuleName,
+		"reason_code":   cd.ReasonCode,
+		"reason":        cd.Reason,
+	}
+}
+
+// BuildDenialError is the default envelope for user-layer denials:
+// Message comes from CommandDeniedError.Error(), no Hint. Callers that
+// need a custom Message or an independent Hint (strict-mode) should
+// compose CommandDeniedFromDenial + DenialDetailMap themselves.
+//
+// Deprecated: BuildDenialError produces a legacy *output.ExitError that
+// predates the typed error contract introduced by errs/. New code MUST NOT
+// use it — denial signals should move to a typed *errs.XxxError (a dedicated
+// typed Error for policy denial is tracked for the cmdpolicy migration PR).
+// This helper is retained only while existing call sites are migrated; it
+// will be removed once they have moved to the typed surface.
+func BuildDenialError(path string, d Denial) *output.ExitError {
 	cd := CommandDeniedFromDenial(path, d)
-	return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", cd.Error()).
-		WithHint("denied by %s policy (source %s, rule %q, reason_code %s); adjust the policy configuration to allow this command",
-			cd.Layer, cd.PolicySource, cd.RuleName, cd.ReasonCode).
-		WithCause(cd)
+	return &output.ExitError{
+		Code: output.ExitValidation,
+		Detail: &output.ErrDetail{
+			Type:    "command_denied",
+			Message: cd.Error(),
+			Detail:  DenialDetailMap(cd),
+		},
+		Err: cd,
+	}
 }
 
 // installDenyStub mutates a cobra.Command in place. Unlike cmd/prune.go
@@ -195,9 +221,9 @@ func installDenyStub(cmd *cobra.Command, path string, d Denial) bool {
 
 	denial := d // capture by value for the closure
 	cmd.RunE = func(c *cobra.Command, args []string) error {
-		// The typed message carries the user-facing semantic ("a command
-		// was denied"); the hint carries the layer / source / rule
-		// distinction ("policy" vs "strict_mode") for debugging.
+		// error.type is the user-facing semantic ("a command was denied by
+		// policy"). detail.layer carries the implementation distinction
+		// ("policy" vs "strict_mode") for debugging.
 		return BuildDenialError(path, denial)
 	}
 	// Clear any pre-existing Run hook: cobra prefers RunE when both are

internal/cmdpolicy/engine.go

@@ -9,9 +9,9 @@
 // aggregation), which the Apply step consumes to install denyStubs.
 //
 // This package only implements the user-layer half. Strict-mode is handled
-// by cmd/prune.go, which produces typed validation errors of the same shape
-// (failed_precondition, *platform.CommandDeniedError preserved as Cause) so
-// external agents see a uniform envelope regardless of which layer rejected
+// by cmd/prune.go, which produces command_denied envelopes of the same
+// shape via BuildDenialError so external agents can dispatch on
+// detail.layer / reason_code uniformly regardless of which layer rejected
 // the call.
 package cmdpolicy
 

internal/cmdpolicy/source_label_test.go

@@ -10,9 +10,9 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
+	"github.com/larksuite/cli/internal/output"
 )
 
 // The envelope's policy_source must never leak the absolute home path.
@@ -39,26 +39,25 @@ func TestEnvelope_yamlPolicySourceDoesNotLeakHomePath(t *testing.T) {
 	cmdpolicy.Apply(root, denied)
 	err := leaf.RunE(leaf, nil)
 
-	var ve *errs.ValidationError
-	if !errors.As(err, &ve) {
-		t.Fatalf("expected denial *errs.ValidationError, got %T %v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected denial ExitError, got %v", err)
 	}
-	// The policy source is folded into the Hint as "yaml" -- the bare
-	// kind, never the absolute path.
-	if !strings.Contains(ve.Hint, "source yaml") {
-		t.Errorf("hint must carry policy_source %q (no path leak), got %q", "yaml", ve.Hint)
+	detail := exitErr.Detail.Detail.(map[string]any)
+	src, _ := detail["policy_source"].(string)
+	if src != "yaml" {
+		t.Errorf("policy_source = %q, want %q (no path leak)", src, "yaml")
 	}
 	// rule_name carries the disambiguating identifier.
-	if !strings.Contains(ve.Hint, "my-readonly-rule") {
-		t.Errorf("hint must carry rule_name my-readonly-rule, got %q", ve.Hint)
+	if detail["rule_name"] != "my-readonly-rule" {
+		t.Errorf("rule_name = %v, want my-readonly-rule", detail["rule_name"])
 	}
-	// Direct privacy probe: the absolute home path must not appear
-	// anywhere in the user-facing message OR hint text.
-	if strings.Contains(ve.Message, "/Users/alice") {
-		t.Errorf("error message must not leak '/Users/alice', got %q", ve.Message)
-	}
-	if strings.Contains(ve.Hint, "/Users/alice") {
-		t.Errorf("error hint must not leak '/Users/alice', got %q", ve.Hint)
+	// Direct probe: the absolute path must not appear anywhere in the
+	// envelope detail (key OR value).
+	for k, v := range detail {
+		if strings.Contains(k, "/Users/alice") || strings.Contains(asString(v), "/Users/alice") {
+			t.Errorf("envelope detail must not leak '/Users/alice', found in %s = %v", k, v)
+		}
 	}
 }
 
@@ -81,14 +80,17 @@ func TestEnvelope_pluginPolicySourceCarriesName(t *testing.T) {
 	cmdpolicy.Apply(root, denied)
 
 	err := leaf.RunE(leaf, nil)
-	var ve *errs.ValidationError
-	if !errors.As(err, &ve) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected ExitError")
 	}
-	// The plugin name IS surfaced (in-binary, part of the contract): it
-	// must appear in the Hint so an integrator debugging a denial knows
-	// which plugin fired.
-	if !strings.Contains(ve.Hint, "plugin:secaudit") {
-		t.Errorf("hint must carry policy_source plugin:secaudit, got %q", ve.Hint)
+	detail := exitErr.Detail.Detail.(map[string]any)
+	if detail["policy_source"] != "plugin:secaudit" {
+		t.Errorf("policy_source = %v, want plugin:secaudit", detail["policy_source"])
 	}
 }
+
+func asString(v any) string {
+	s, _ := v.(string)
+	return s
+}

internal/cmdutil/confirm.go

@@ -4,22 +4,39 @@
 package cmdutil
 
 import (
-	"github.com/larksuite/cli/errs"
+	"fmt"
+
+	"github.com/larksuite/cli/internal/output"
 )
 
-// RequireConfirmation constructs a typed *errs.ConfirmationRequiredError
-// (exit code ExitConfirmationRequired) carrying the risk level and action as
-// typed extension fields. Used by both shortcut and service command execution
-// paths when a statically high-risk-write operation has not been confirmed
-// with --yes.
+// RequireConfirmation constructs a confirmation_required error with exit code
+// ExitConfirmationRequired and a structured Risk envelope. Used by both
+// shortcut and service command execution paths when a statically
+// high-risk-write operation has not been confirmed with --yes.
 //
 // action identifies the operation for the agent (e.g. "mail +send",
 // "drive.files.delete"). The envelope does not carry a pre-built retry
 // command: agents already know their original invocation and only need to
 // append --yes per the hint, which keeps the protocol free of shell-quoting
 // pitfalls.
+// Deprecated: RequireConfirmation produces a legacy *output.ExitError that
+// predates the typed error contract introduced by errs/. New code MUST NOT
+// use it — confirmation-required signals should move to typed
+// *errs.ConfirmationRequiredError carrying the same agent-protocol metadata
+// (level/action) as typed extension fields. This helper is retained only
+// while existing call sites are migrated; it will be removed once they have
+// moved to the typed surface.
 func RequireConfirmation(action string) error {
-	return errs.NewConfirmationRequiredError(errs.RiskHighRiskWrite, action,
-		"%s requires confirmation", action).
-		WithHint("add --yes to confirm")
+	return &output.ExitError{
+		Code: output.ExitConfirmationRequired,
+		Detail: &output.ErrDetail{
+			Type:    "confirmation_required",
+			Message: fmt.Sprintf("%s requires confirmation", action),
+			Hint:    "add --yes to confirm",
+			Risk: &output.RiskDetail{
+				Level:  RiskHighRiskWrite,
+				Action: action,
+			},
+		},
+	}
 }

internal/cmdutil/confirm_test.go

@@ -9,50 +9,53 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/output"
 )
 
-func TestRequireConfirmation_TypedShape(t *testing.T) {
+func TestRequireConfirmation_EnvelopeShape(t *testing.T) {
 	err := RequireConfirmation("drive +delete")
 	if err == nil {
 		t.Fatal("expected non-nil error")
 	}
 
-	var cre *errs.ConfirmationRequiredError
-	if !errors.As(err, &cre) {
-		t.Fatalf("expected *errs.ConfirmationRequiredError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	if cre.Category != errs.CategoryConfirmation {
-		t.Errorf("Category = %q, want %q", cre.Category, errs.CategoryConfirmation)
+	if exitErr.Code != output.ExitConfirmationRequired {
+		t.Errorf("Code = %d, want %d", exitErr.Code, output.ExitConfirmationRequired)
 	}
-	if cre.Subtype != errs.SubtypeConfirmationRequired {
-		t.Errorf("Subtype = %q, want %q", cre.Subtype, errs.SubtypeConfirmationRequired)
+	if exitErr.Detail == nil {
+		t.Fatal("Detail is nil")
 	}
-	if got := output.ExitCodeOf(err); got != output.ExitConfirmationRequired {
-		t.Errorf("ExitCodeOf = %d, want %d", got, output.ExitConfirmationRequired)
+	d := exitErr.Detail
+	if d.Type != "confirmation_required" {
+		t.Errorf("Type = %q, want confirmation_required", d.Type)
 	}
-	if !strings.Contains(cre.Message, "drive +delete") || !strings.Contains(cre.Message, "requires confirmation") {
-		t.Errorf("Message = %q, want it to mention action and 'requires confirmation'", cre.Message)
+	if !strings.Contains(d.Message, "drive +delete") || !strings.Contains(d.Message, "requires confirmation") {
+		t.Errorf("Message = %q, want it to mention action and 'requires confirmation'", d.Message)
 	}
-	if cre.Hint != "add --yes to confirm" {
-		t.Errorf("Hint = %q, want 'add --yes to confirm'", cre.Hint)
+	if d.Hint != "add --yes to confirm" {
+		t.Errorf("Hint = %q, want 'add --yes to confirm'", d.Hint)
 	}
-	if cre.Risk != errs.RiskHighRiskWrite {
-		t.Errorf("Risk = %q, want %q", cre.Risk, errs.RiskHighRiskWrite)
+	if d.Risk == nil {
+		t.Fatal("Risk is nil")
 	}
-	if cre.Action != "drive +delete" {
-		t.Errorf("Action = %q, want drive +delete", cre.Action)
+	if d.Risk.Level != "high-risk-write" {
+		t.Errorf("Risk.Level = %q, want high-risk-write", d.Risk.Level)
+	}
+	if d.Risk.Action != "drive +delete" {
+		t.Errorf("Risk.Action = %q, want drive +delete", d.Risk.Action)
 	}
 }
 
 func TestRequireConfirmation_JSONShape(t *testing.T) {
 	err := RequireConfirmation("mail +send")
-	var cre *errs.ConfirmationRequiredError
-	if !errors.As(err, &cre) {
-		t.Fatalf("expected *errs.ConfirmationRequiredError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("expected *output.ExitError, got %T", err)
 	}
-	raw, mErr := json.Marshal(cre)
+	raw, mErr := json.Marshal(exitErr.Detail)
 	if mErr != nil {
 		t.Fatalf("marshal: %v", mErr)
 	}
@@ -67,14 +70,18 @@ func TestRequireConfirmation_JSONShape(t *testing.T) {
 		t.Errorf("unexpected fix_command present in JSON: %s", raw)
 	}
 
-	if back["risk"] != "high-risk-write" {
-		t.Errorf("risk in JSON = %v", back["risk"])
+	risk, ok := back["risk"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("risk block missing in JSON: %s", raw)
 	}
-	if back["action"] != "mail +send" {
-		t.Errorf("action in JSON = %v", back["action"])
+	if risk["level"] != "high-risk-write" {
+		t.Errorf("risk.level in JSON = %v", risk["level"])
+	}
+	if risk["action"] != "mail +send" {
+		t.Errorf("risk.action in JSON = %v", risk["action"])
 	}
 	// Action-only protocol: no UpgradedBy / fix_command / upgraded_by leak.
-	if _, has := back["upgraded_by"]; has {
+	if _, has := risk["upgraded_by"]; has {
 		t.Errorf("unexpected upgraded_by present in JSON: %s", raw)
 	}
 }

internal/cmdutil/factory_default_test.go

@@ -8,7 +8,6 @@ import (
 	"errors"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	_ "github.com/larksuite/cli/extension/credential/env"
 	"github.com/larksuite/cli/extension/fileio"
 	"github.com/larksuite/cli/internal/core"
@@ -108,9 +107,9 @@ func TestNewDefault_InvocationProfileMissingSticksAcrossEarlyStrictMode(t *testi
 	if err == nil {
 		t.Fatal("Config() error = nil, want non-nil")
 	}
-	var cfgErr *errs.ConfigError
+	var cfgErr *core.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("Config() error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("Config() error type = %T, want *core.ConfigError", err)
 	}
 	if cfgErr.Message != `profile "missing" not found` {
 		t.Fatalf("Config() error message = %q, want %q", cfgErr.Message, `profile "missing" not found`)

internal/cmdutil/fileupload.go

@@ -10,8 +10,8 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/fileio"
+	"github.com/larksuite/cli/internal/output"
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 )
 
@@ -42,41 +42,26 @@ func ValidateFileFlag(file, params, data, outputPath string, pageAll bool, httpM
 
 	_, filePath, isStdin := ParseFileFlag(file, "file")
 	if !isStdin && filePath == "" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file: empty file path").
-			WithParam("--file")
+		return output.ErrValidation("--file: empty file path")
 	}
 
 	if outputPath != "" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file and --output are mutually exclusive").WithParams(
-			errs.InvalidParam{Name: "--file", Reason: "mutually exclusive with --output"},
-			errs.InvalidParam{Name: "--output", Reason: "mutually exclusive with --file"},
-		)
+		return output.ErrValidation("--file and --output are mutually exclusive")
 	}
 	if pageAll {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file and --page-all are mutually exclusive").WithParams(
-			errs.InvalidParam{Name: "--file", Reason: "mutually exclusive with --page-all"},
-			errs.InvalidParam{Name: "--page-all", Reason: "mutually exclusive with --file"},
-		)
+		return output.ErrValidation("--file and --page-all are mutually exclusive")
 	}
 	if isStdin && data == "-" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file and --data cannot both read from stdin").WithParams(
-			errs.InvalidParam{Name: "--file", Reason: "only one flag may read from stdin"},
-			errs.InvalidParam{Name: "--data", Reason: "only one flag may read from stdin"},
-		)
+		return output.ErrValidation("--file and --data cannot both read from stdin")
 	}
 	if isStdin && params == "-" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file and --params cannot both read from stdin").WithParams(
-			errs.InvalidParam{Name: "--file", Reason: "only one flag may read from stdin"},
-			errs.InvalidParam{Name: "--params", Reason: "only one flag may read from stdin"},
-		)
+		return output.ErrValidation("--file and --params cannot both read from stdin")
 	}
 
 	switch httpMethod {
 	case "POST", "PUT", "PATCH", "DELETE":
 	default:
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file requires POST, PUT, PATCH, or DELETE method").
-			WithParam("--file").
-			WithHint("file upload only applies to write methods; remove --file for read methods")
+		return output.ErrValidation("--file requires POST, PUT, PATCH, or DELETE method")
 	}
 
 	return nil
@@ -98,35 +83,25 @@ func BuildFormdata(fileIO fileio.FileIO, fieldName, filePath string, isStdin boo
 
 	if isStdin {
 		if stdin == nil {
-			return nil, errs.NewValidationError(errs.SubtypeFailedPrecondition, "--file: stdin is not available").
-				WithParam("--file").
-				WithHint("pipe the file content to stdin, or pass a file path instead of \"-\"")
+			return nil, output.ErrValidation("--file: stdin is not available")
 		}
 		data, err := io.ReadAll(stdin)
 		if err != nil {
-			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "--file: failed to read stdin: %v", err).
-				WithParam("--file").
-				WithCause(err)
+			return nil, output.ErrValidation("--file: failed to read stdin: %v", err)
 		}
 		if len(data) == 0 {
-			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "--file: stdin is empty").
-				WithParam("--file").
-				WithHint("pipe non-empty file content to stdin")
+			return nil, output.ErrValidation("--file: stdin is empty")
 		}
 		fd.AddFile(fieldName, bytes.NewReader(data))
 	} else {
 		f, err := fileIO.Open(filePath)
 		if err != nil {
-			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "cannot open file: %s", filePath).
-				WithParam("--file").
-				WithCause(err)
+			return nil, output.ErrValidation("cannot open file: %s", filePath)
 		}
 		defer f.Close()
 		data, err := io.ReadAll(f)
 		if err != nil {
-			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "--file: failed to read %s: %v", filePath, err).
-				WithParam("--file").
-				WithCause(err)
+			return nil, output.ErrValidation("--file: failed to read %s: %v", filePath, err)
 		}
 		fd.AddFile(fieldName, bytes.NewReader(data))
 	}

internal/cmdutil/fileupload_test.go

@@ -5,49 +5,14 @@ package cmdutil
 
 import (
 	"bytes"
-	"errors"
 	"os"
 	"path/filepath"
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
-	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/vfs/localfileio"
 )
 
-// failingReader always errors on Read, to exercise stdin read-failure paths.
-type failingReader struct{ err error }
-
-func (r *failingReader) Read([]byte) (int, error) { return 0, r.err }
-
-// requireFileValidationError asserts err is a typed *errs.ValidationError with
-// the expected subtype, exit code 2 (legacy ErrValidation parity), and a
-// param diagnostic referencing --file (either Param or one of Params).
-func requireFileValidationError(t *testing.T, err error, wantSubtype errs.Subtype) *errs.ValidationError {
-	t.Helper()
-	var valErr *errs.ValidationError
-	if !errors.As(err, &valErr) {
-		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
-	}
-	if valErr.Subtype != wantSubtype {
-		t.Errorf("subtype = %q, want %q", valErr.Subtype, wantSubtype)
-	}
-	if got := output.ExitCodeOf(err); got != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation, legacy parity)", got, output.ExitValidation)
-	}
-	mentionsFile := valErr.Param == "--file"
-	for _, p := range valErr.Params {
-		if p.Name == "--file" {
-			mentionsFile = true
-		}
-	}
-	if !mentionsFile {
-		t.Errorf("expected --file in Param/Params, got Param=%q Params=%v", valErr.Param, valErr.Params)
-	}
-	return valErr
-}
-
 func TestParseFileFlag(t *testing.T) {
 	tests := []struct {
 		name         string
@@ -257,7 +222,6 @@ func TestValidateFileFlag(t *testing.T) {
 			if !strings.Contains(err.Error(), tt.wantErr) {
 				t.Errorf("error = %q, want containing %q", err.Error(), tt.wantErr)
 			}
-			requireFileValidationError(t, err, errs.SubtypeInvalidArgument)
 		})
 	}
 }
@@ -284,19 +248,6 @@ func TestBuildFormdata(t *testing.T) {
 		if !strings.Contains(err.Error(), "stdin is not available") {
 			t.Errorf("error = %q, want containing %q", err.Error(), "stdin is not available")
 		}
-		requireFileValidationError(t, err, errs.SubtypeFailedPrecondition)
-	})
-
-	t.Run("stdin read failure", func(t *testing.T) {
-		readErr := errors.New("pipe closed")
-		_, err := BuildFormdata(fio, "file", "", true, &failingReader{err: readErr}, nil)
-		if err == nil {
-			t.Fatal("expected error for failing stdin reader")
-		}
-		requireFileValidationError(t, err, errs.SubtypeInvalidArgument)
-		if !errors.Is(err, readErr) {
-			t.Error("underlying read error not reachable via errors.Is; WithCause missing")
-		}
 	})
 
 	t.Run("stdin empty", func(t *testing.T) {
@@ -308,7 +259,6 @@ func TestBuildFormdata(t *testing.T) {
 		if !strings.Contains(err.Error(), "stdin is empty") {
 			t.Errorf("error = %q, want containing %q", err.Error(), "stdin is empty")
 		}
-		requireFileValidationError(t, err, errs.SubtypeInvalidArgument)
 	})
 
 	t.Run("file open success", func(t *testing.T) {
@@ -339,10 +289,6 @@ func TestBuildFormdata(t *testing.T) {
 		if !strings.Contains(err.Error(), "cannot open file:") {
 			t.Errorf("error = %q, want containing %q", err.Error(), "cannot open file:")
 		}
-		valErr := requireFileValidationError(t, err, errs.SubtypeInvalidArgument)
-		if valErr.Cause == nil {
-			t.Error("expected the os open error attached as Cause")
-		}
 	})
 
 	t.Run("dataJSON fields added", func(t *testing.T) {

internal/cmdutil/json.go

@@ -7,8 +7,8 @@ import (
 	"encoding/json"
 	"io"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/fileio"
+	"github.com/larksuite/cli/internal/output"
 )
 
 // ParseOptionalBody parses --data JSON for methods that accept a request body.
@@ -22,18 +22,14 @@ func ParseOptionalBody(httpMethod, data string, stdin io.Reader, fileIO fileio.F
 	}
 	resolved, err := ResolveInput(data, stdin, fileIO)
 	if err != nil {
-		return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "--data: %s", err).
-			WithParam("--data").
-			WithCause(err)
+		return nil, output.ErrValidation("--data: %s", err)
 	}
 	if resolved == "" {
 		return nil, nil
 	}
 	var body interface{}
 	if err := json.Unmarshal([]byte(resolved), &body); err != nil {
-		return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "--data invalid JSON format").
-			WithParam("--data").
-			WithCause(err)
+		return nil, output.ErrValidation("--data invalid JSON format")
 	}
 	return body, nil
 }
@@ -45,18 +41,14 @@ func ParseOptionalBody(httpMethod, data string, stdin io.Reader, fileIO fileio.F
 func ParseJSONMap(input, label string, stdin io.Reader, fileIO fileio.FileIO) (map[string]any, error) {
 	resolved, err := ResolveInput(input, stdin, fileIO)
 	if err != nil {
-		return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "%s: %s", label, err).
-			WithParam(label).
-			WithCause(err)
+		return nil, output.ErrValidation("%s: %s", label, err)
 	}
 	if resolved == "" {
 		return map[string]any{}, nil
 	}
 	var result map[string]any
 	if err := json.Unmarshal([]byte(resolved), &result); err != nil {
-		return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "%s invalid format, expected JSON object", label).
-			WithParam(label).
-			WithCause(err)
+		return nil, output.ErrValidation("%s invalid format, expected JSON object", label)
 	}
 	if result == nil {
 		// `null` unmarshals into a nil map without error; normalize it so the

internal/cmdutil/json_test.go

@@ -3,40 +3,9 @@
 
 package cmdutil
 
-import (
-	"errors"
-	"testing"
-
-	"github.com/larksuite/cli/errs"
-	"github.com/larksuite/cli/internal/output"
-	"github.com/larksuite/cli/internal/vfs/localfileio"
-)
-
-// requireJSONInputValidationError asserts err is a typed *errs.ValidationError
-// with subtype invalid_argument, exit code 2 (legacy ErrValidation parity),
-// and the offending flag recorded as Param.
-func requireJSONInputValidationError(t *testing.T, err error, wantParam string) {
-	t.Helper()
-	var valErr *errs.ValidationError
-	if !errors.As(err, &valErr) {
-		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
-	}
-	if valErr.Subtype != errs.SubtypeInvalidArgument {
-		t.Errorf("subtype = %q, want %q", valErr.Subtype, errs.SubtypeInvalidArgument)
-	}
-	if valErr.Param != wantParam {
-		t.Errorf("param = %q, want %q", valErr.Param, wantParam)
-	}
-	if got := output.ExitCodeOf(err); got != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d (ExitValidation, legacy parity)", got, output.ExitValidation)
-	}
-	if valErr.Cause == nil {
-		t.Error("expected the underlying parse/resolve error attached as Cause")
-	}
-}
+import "testing"
 
 func TestParseOptionalBody(t *testing.T) {
-	fio := &localfileio.LocalFileIO{}
 	tests := []struct {
 		name    string
 		method  string
@@ -51,23 +20,18 @@ func TestParseOptionalBody(t *testing.T) {
 		{"PATCH valid", "PATCH", `"hello"`, false, false},
 		{"DELETE valid", "DELETE", `{"id":"1"}`, false, false},
 		{"POST invalid json", "POST", `{bad}`, true, true},
-		{"POST unreadable @file", "POST", "@/nonexistent/body.json", true, true},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got, err := ParseOptionalBody(tt.method, tt.data, nil, fio)
+			got, err := ParseOptionalBody(tt.method, tt.data, nil, nil)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("ParseOptionalBody() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if tt.wantErr {
-				requireJSONInputValidationError(t, err, "--data")
-				return
-			}
 			if tt.wantNil && got != nil {
 				t.Errorf("ParseOptionalBody() = %v, want nil", got)
 			}
-			if !tt.wantNil && got == nil {
+			if !tt.wantNil && !tt.wantErr && got == nil {
 				t.Error("ParseOptionalBody() = nil, want non-nil")
 			}
 		})
@@ -75,7 +39,6 @@ func TestParseOptionalBody(t *testing.T) {
 }
 
 func TestParseJSONMap(t *testing.T) {
-	fio := &localfileio.LocalFileIO{}
 	tests := []struct {
 		name    string
 		input   string
@@ -88,20 +51,15 @@ func TestParseJSONMap(t *testing.T) {
 		{"valid json", `{"a":"1","b":"2"}`, "--params", 2, false},
 		{"invalid json", `{bad}`, "--params", 0, true},
 		{"json array", `[1,2]`, "--data", 0, true},
-		{"unreadable @file", "@/nonexistent/params.json", "--params", 0, true},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got, err := ParseJSONMap(tt.input, tt.label, nil, fio)
+			got, err := ParseJSONMap(tt.input, tt.label, nil, nil)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("ParseJSONMap() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if tt.wantErr {
-				requireJSONInputValidationError(t, err, tt.label)
-				return
-			}
-			if len(got) != tt.wantLen {
+			if !tt.wantErr && len(got) != tt.wantLen {
 				t.Errorf("ParseJSONMap() returned map with %d keys, want %d", len(got), tt.wantLen)
 			}
 			// A successful parse must yield a non-nil, writable map: callers

internal/cmdutil/lang.go

@@ -6,8 +6,8 @@ package cmdutil
 import (
 	"strings"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/i18n"
+	"github.com/larksuite/cli/internal/output"
 )
 
 // ParseLangFlag validates and canonicalizes a --lang value, shared by config
@@ -19,10 +19,9 @@ func ParseLangFlag(raw string) (i18n.Lang, error) {
 	}
 	lang, ok := i18n.Parse(raw)
 	if !ok {
-		return "", errs.NewValidationError(errs.SubtypeInvalidArgument,
+		return "", output.ErrValidation(
 			"invalid --lang %q; valid values: %s",
-			raw, strings.Join(i18n.Codes(), ", ")).
-			WithParam("--lang")
+			raw, strings.Join(i18n.Codes(), ", "))
 	}
 	return lang, nil
 }

internal/core/config.go

@@ -11,9 +11,9 @@ import (
 	"strings"
 	"unicode/utf8"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/i18n"
 	"github.com/larksuite/cli/internal/keychain"
+	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/validate"
 	"github.com/larksuite/cli/internal/vfs"
 )
@@ -187,12 +187,6 @@ func GetConfigPath() string {
 	return filepath.Join(GetConfigDir(), "config.json")
 }
 
-// ErrMalformedConfig marks a config-load failure caused by malformed file
-// content (unparseable JSON, structurally empty) rather than a missing or
-// unreadable file. Callers classify with errors.Is rather than sniffing the
-// message text.
-var ErrMalformedConfig = errors.New("malformed config")
-
 // LoadMultiAppConfig loads multi-app config from disk.
 func LoadMultiAppConfig() (*MultiAppConfig, error) {
 	data, err := vfs.ReadFile(GetConfigPath())
@@ -202,10 +196,10 @@ func LoadMultiAppConfig() (*MultiAppConfig, error) {
 
 	var multi MultiAppConfig
 	if err := json.Unmarshal(data, &multi); err != nil {
-		return nil, fmt.Errorf("invalid config format: %w: %w", ErrMalformedConfig, err)
+		return nil, fmt.Errorf("invalid config format: %w", err)
 	}
 	if len(multi.Apps) == 0 {
-		return nil, fmt.Errorf("invalid config format: no apps: %w", ErrMalformedConfig)
+		return nil, fmt.Errorf("invalid config format: no apps")
 	}
 	return &multi, nil
 }
@@ -243,26 +237,28 @@ func RequireConfigForProfile(kc keychain.KeychainAccess, profileOverride string)
 func ResolveConfigFromMulti(raw *MultiAppConfig, kc keychain.KeychainAccess, profileOverride string) (*CliConfig, error) {
 	app := raw.CurrentAppConfig(profileOverride)
 	if app == nil {
-		return nil, errs.NewConfigError(errs.SubtypeNotConfigured, "profile %q not found", profileOverride).
-			WithHint("available profiles: %s", formatProfileNames(raw.ProfileNames()))
+		return nil, &ConfigError{
+			Code:    3,
+			Type:    "config",
+			Message: fmt.Sprintf("profile %q not found", profileOverride),
+			Hint:    fmt.Sprintf("available profiles: %s", formatProfileNames(raw.ProfileNames())),
+		}
 	}
 
 	if err := ValidateSecretKeyMatch(app.AppId, app.AppSecret); err != nil {
-		return nil, errs.NewConfigError(errs.SubtypeNotConfigured, "appId and appSecret keychain key are out of sync").
-			WithHint("%s", err.Error()).
-			WithCause(err)
+		return nil, &ConfigError{Code: 3, Type: "config",
+			Message: "appId and appSecret keychain key are out of sync",
+			Hint:    err.Error()}
 	}
 
 	secret, err := ResolveSecretInput(app.AppSecret, kc)
 	if err != nil {
-		if errs.IsTyped(err) {
-			return nil, err
+		// Deprecated: legacy *output.ExitError passthrough; removed after typed migration.
+		var exitErr *output.ExitError
+		if errors.As(err, &exitErr) {
+			return nil, exitErr
 		}
-		subtype := errs.SubtypeNotConfigured
-		if isMalformedConfigError(err) {
-			subtype = errs.SubtypeInvalidConfig
-		}
-		return nil, errs.NewConfigError(subtype, "%s", err.Error()).WithCause(err)
+		return nil, &ConfigError{Code: 3, Type: "config", Message: err.Error()}
 	}
 	cfg := &CliConfig{
 		ProfileName: app.ProfileName(),
@@ -291,8 +287,7 @@ func RequireAuthForProfile(kc keychain.KeychainAccess, profileOverride string) (
 		return nil, err
 	}
 	if cfg.UserOpenId == "" {
-		return nil, errs.NewAuthenticationError(errs.SubtypeTokenMissing, "not logged in").
-			WithHint("run `lark-cli auth login` in the background. It blocks and outputs a verification URL — retrieve the URL and open it in a browser to complete login.")
+		return nil, &ConfigError{Code: 3, Type: "auth", Message: "not logged in", Hint: "run `lark-cli auth login` in the background. It blocks and outputs a verification URL — retrieve the URL and open it in a browser to complete login."}
 	}
 	return cfg, nil
 }

internal/core/config_test.go

@@ -8,7 +8,6 @@ import (
 	"errors"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/keychain"
 )
 
@@ -104,7 +103,7 @@ func TestResolveConfigFromMulti_RejectsSecretKeyMismatch(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected error for mismatched appId and appSecret keychain key")
 	}
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
 		t.Fatalf("expected ConfigError, got %T: %v", err, err)
 	}
@@ -178,7 +177,7 @@ func TestResolveConfigFromMulti_MatchingKeychainRefPassesValidation(t *testing.T
 		t.Fatal("expected error (keychain entry not found), got nil")
 	}
 	// The error should come from keychain resolution, NOT from our mismatch check.
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if errors.As(err, &cfgErr) {
 		if cfgErr.Message == "appId and appSecret keychain key are out of sync" {
 			t.Fatal("error came from mismatch check, but keys should match")

internal/core/errors.go

@@ -0,0 +1,22 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package core
+
+import "fmt"
+
+// ConfigError is a structured error from config resolution.
+// It carries enough information for main.go to convert it into an output.ExitError.
+type ConfigError struct {
+	Code    int    // exit code: 3 (config errors share the auth exit code)
+	Type    string // "config" or "auth"
+	Message string
+	Hint    string
+}
+
+func (e *ConfigError) Error() string {
+	if e.Hint != "" {
+		return fmt.Sprintf("%s\n  %s", e.Message, e.Hint)
+	}
+	return e.Message
+}

internal/core/notconfigured.go

@@ -5,20 +5,10 @@ package core
 
 import (
 	"errors"
+	"fmt"
 	"os"
-
-	"github.com/larksuite/cli/errs"
 )
 
-// isMalformedConfigError reports whether a config load failure indicates a
-// malformed file (unparseable / structurally empty) rather than an absent or
-// inaccessible one. Malformed files map to the invalid_config subtype so the
-// user is told to fix the file instead of re-running init. Detection is by
-// ErrMalformedConfig sentinel, not message text.
-func isMalformedConfigError(err error) bool {
-	return errors.Is(err, ErrMalformedConfig)
-}
-
 // LoadOrNotConfigured wraps LoadMultiAppConfig with the standard "not yet
 // configured vs. couldn't read" disambiguation that every config-required
 // command should use:
@@ -37,15 +27,14 @@ func LoadOrNotConfigured() (*MultiAppConfig, error) {
 			return nil, NotConfiguredError()
 		}
 		// Surface the real cause (parse error, permission denied, etc.)
-		// so the user can fix the broken file. A malformed file is
-		// invalid_config; anything else (permission denied, etc.) is
-		// not_configured. Both stay on the typed structured-envelope path
-		// at the root command's error sink.
-		subtype := errs.SubtypeNotConfigured
-		if isMalformedConfigError(err) {
-			subtype = errs.SubtypeInvalidConfig
+		// so the user can fix the broken file. Wrapping as ConfigError
+		// keeps it on the standard structured-envelope path at the root
+		// command's error sink.
+		return nil, &ConfigError{
+			Code:    3,
+			Type:    "config",
+			Message: fmt.Sprintf("failed to load config: %v", err),
 		}
-		return nil, errs.NewConfigError(subtype, "failed to load config: %v", err).WithCause(err)
 	}
 	if multi == nil || len(multi.Apps) == 0 {
 		return nil, NotConfiguredError()
@@ -81,14 +70,19 @@ const (
 func NotConfiguredError() error {
 	ws := CurrentWorkspace()
 	if ws.IsLocal() {
-		return errs.NewConfigError(errs.SubtypeNotConfigured, "not configured").
-			WithHint("%s", localInitHint)
+		return &ConfigError{
+			Code:    3,
+			Type:    "config",
+			Message: "not configured",
+			Hint:    localInitHint,
+		}
+	}
+	return &ConfigError{
+		Code:    3,
+		Type:    ws.Display(),
+		Message: fmt.Sprintf("%s context detected but lark-cli is not bound to it", ws.Display()),
+		Hint:    agentBindHint,
 	}
-	// Agent workspace: the workspace name appears only in the message, never
-	// in the wire subtype, which stays not_configured.
-	return errs.NewConfigError(errs.SubtypeNotConfigured,
-		"%s context detected but lark-cli is not bound to it", ws.Display()).
-		WithHint("%s", agentBindHint)
 }
 
 // reconfigureHint returns the workspace-aware "fix it from scratch" hint
@@ -110,10 +104,17 @@ func reconfigureHint() string {
 func NoActiveProfileError() error {
 	ws := CurrentWorkspace()
 	if ws.IsLocal() {
-		return errs.NewConfigError(errs.SubtypeNotConfigured, "no active profile").
-			WithHint("%s", localInitHint)
+		return &ConfigError{
+			Code:    3,
+			Type:    "config",
+			Message: "no active profile",
+			Hint:    localInitHint,
+		}
+	}
+	return &ConfigError{
+		Code:    3,
+		Type:    ws.Display(),
+		Message: fmt.Sprintf("no active profile in %s workspace", ws.Display()),
+		Hint:    agentBindHint,
 	}
-	return errs.NewConfigError(errs.SubtypeNotConfigured,
-		"no active profile in %s workspace", ws.Display()).
-		WithHint("%s", agentBindHint)
 }

internal/core/notconfigured_test.go

@@ -8,8 +8,6 @@ import (
 	"os"
 	"strings"
 	"testing"
-
-	"github.com/larksuite/cli/errs"
 )
 
 // saveAndRestoreWorkspace ensures package-level currentWorkspace is reset
@@ -26,15 +24,12 @@ func TestNotConfiguredError_Local(t *testing.T) {
 	SetCurrentWorkspace(WorkspaceLocal)
 
 	err := NotConfiguredError()
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *ConfigError", err)
 	}
-	if cfgErr.Category != errs.CategoryConfig || cfgErr.Subtype != errs.SubtypeNotConfigured {
-		t.Errorf("category/subtype = %q/%q, want config/not_configured", cfgErr.Category, cfgErr.Subtype)
-	}
-	if cfgErr.Message != "not configured" {
-		t.Errorf("message = %q, want %q", cfgErr.Message, "not configured")
+	if cfgErr.Type != "config" || cfgErr.Message != "not configured" {
+		t.Errorf("unexpected detail: %+v", cfgErr)
 	}
 	if !strings.Contains(cfgErr.Hint, "config init --new") {
 		t.Errorf("local hint should suggest config init --new; got %q", cfgErr.Hint)
@@ -49,17 +44,12 @@ func TestNotConfiguredError_OpenClaw(t *testing.T) {
 	SetCurrentWorkspace(WorkspaceOpenClaw)
 
 	err := NotConfiguredError()
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *ConfigError", err)
 	}
-	// The wire subtype stays not_configured; the workspace name only appears
-	// in the message, never in the typed taxonomy.
-	if cfgErr.Subtype != errs.SubtypeNotConfigured {
-		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
-	}
-	if !strings.Contains(cfgErr.Message, "openclaw") {
-		t.Errorf("message must name the openclaw workspace; got %q", cfgErr.Message)
+	if cfgErr.Type != "openclaw" {
+		t.Errorf("type = %q, want %q", cfgErr.Type, "openclaw")
 	}
 	// Hint must point at --help (read first, confirm with user, then bind),
 	// NOT a directly-executable bind command — binding is policy-laden
@@ -77,15 +67,12 @@ func TestNotConfiguredError_Hermes(t *testing.T) {
 	SetCurrentWorkspace(WorkspaceHermes)
 
 	err := NotConfiguredError()
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *ConfigError", err)
 	}
-	if cfgErr.Subtype != errs.SubtypeNotConfigured {
-		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
-	}
-	if !strings.Contains(cfgErr.Message, "hermes") {
-		t.Errorf("message must name the hermes workspace; got %q", cfgErr.Message)
+	if cfgErr.Type != "hermes" {
+		t.Errorf("type = %q, want %q", cfgErr.Type, "hermes")
 	}
 	if !strings.Contains(cfgErr.Hint, "config bind --help") {
 		t.Errorf("hermes hint must point to `config bind --help`; got %q", cfgErr.Hint)
@@ -97,9 +84,9 @@ func TestNoActiveProfileError_Local(t *testing.T) {
 	SetCurrentWorkspace(WorkspaceLocal)
 
 	err := NoActiveProfileError()
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *ConfigError", err)
 	}
 	if cfgErr.Message != "no active profile" {
 		t.Errorf("message = %q, want %q", cfgErr.Message, "no active profile")
@@ -111,9 +98,9 @@ func TestNoActiveProfileError_AgentSuggestsBind(t *testing.T) {
 	SetCurrentWorkspace(WorkspaceOpenClaw)
 
 	err := NoActiveProfileError()
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
+		t.Fatalf("error type = %T, want *ConfigError", err)
 	}
 	if !strings.Contains(cfgErr.Hint, "config bind --help") {
 		t.Errorf("agent hint must point to `config bind --help`; got %q", cfgErr.Hint)
@@ -149,12 +136,9 @@ func TestLoadOrNotConfigured_FileMissing_ReturnsNotConfigured(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected error")
 	}
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
-	}
-	if cfgErr.Subtype != errs.SubtypeNotConfigured {
-		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
+		t.Fatalf("error type = %T, want *ConfigError", err)
 	}
 	if cfgErr.Message != "not configured" {
 		t.Errorf("message = %q, want \"not configured\"", cfgErr.Message)
@@ -180,13 +164,9 @@ func TestLoadOrNotConfigured_CorruptFile_PreservesCause(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected error for corrupt config")
 	}
-	var cfgErr *errs.ConfigError
+	var cfgErr *ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *errs.ConfigError", err)
-	}
-	// A malformed file maps to invalid_config, not not_configured.
-	if cfgErr.Subtype != errs.SubtypeInvalidConfig {
-		t.Errorf("subtype = %q, want invalid_config", cfgErr.Subtype)
+		t.Fatalf("error type = %T, want *ConfigError", err)
 	}
 	if !strings.Contains(cfgErr.Message, "failed to load config") {
 		t.Errorf("corrupt-file message must say 'failed to load config'; got %q", cfgErr.Message)
@@ -198,8 +178,4 @@ func TestLoadOrNotConfigured_CorruptFile_PreservesCause(t *testing.T) {
 	if strings.Contains(cfgErr.Hint, "config init") || strings.Contains(cfgErr.Hint, "config bind") {
 		t.Errorf("corrupt-file hint must not redirect to init/bind; got %q", cfgErr.Hint)
 	}
-	// The underlying parse failure stays reachable through the unwrap chain.
-	if cfgErr.Cause == nil {
-		t.Error("Cause must wrap the underlying load error for errors.Is/Unwrap")
-	}
 }

internal/errcompat/promote.go

@@ -0,0 +1,48 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package errcompat provides boundary helpers that bridge legacy error types
+// to the typed errs/ taxonomy. These helpers run at the dispatcher boundary
+// (cmd/root.go.handleRootError) before the typed envelope writer, converting
+// pre-typed-taxonomy errors (*core.ConfigError, *internalauth.NeedAuthorizationError)
+// into typed *errs.* errors while preserving the original error in the Cause
+// chain so existing `errors.As` callers continue to match.
+package errcompat
+
+import (
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/core"
+)
+
+// PromoteConfigError converts a legacy *core.ConfigError into the matching
+// typed errs.*Error based on cfgErr.Type. Called from cmd/root.go.handleRootError
+// before the typed envelope writer. The original *core.ConfigError is preserved
+// in the Cause chain so external `errors.As(&core.ConfigError{})` callers
+// (cmd/auth/list.go, cmd/doctor/doctor.go, etc.) still match.
+func PromoteConfigError(cfgErr *core.ConfigError) error {
+	if cfgErr == nil {
+		return nil
+	}
+	switch cfgErr.Type {
+	case "auth":
+		return errs.NewAuthenticationError(errs.SubtypeTokenMissing, "%s", cfgErr.Message).
+			WithHint("%s", cfgErr.Hint).
+			WithCause(cfgErr)
+	case "config":
+		subtype := errs.SubtypeNotConfigured
+		lower := strings.ToLower(cfgErr.Message)
+		if strings.Contains(lower, "parse") || strings.Contains(lower, "invalid") {
+			subtype = errs.SubtypeInvalidConfig
+		}
+		return errs.NewConfigError(subtype, "%s", cfgErr.Message).
+			WithHint("%s", cfgErr.Hint).
+			WithCause(cfgErr)
+	default:
+		// dynamic Type (e.g. workspace name like "bind"/"hermes"/"openclaw") → NotConfigured
+		return errs.NewConfigError(errs.SubtypeNotConfigured, "%s", cfgErr.Message).
+			WithHint("%s", cfgErr.Hint).
+			WithCause(cfgErr)
+	}
+}

internal/errcompat/promote_auth.go

@@ -0,0 +1,32 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package errcompat
+
+import (
+	"github.com/larksuite/cli/errs"
+	internalauth "github.com/larksuite/cli/internal/auth"
+)
+
+// PromoteAuthError converts a legacy *internalauth.NeedAuthorizationError into
+// *errs.AuthenticationError{Subtype: TokenMissing}. The Message field MUST
+// contain "need_user_authorization" so the marker invariant guardrail in
+// cmd/root_test.go and internal/auth/errors_test.go still holds.
+//
+// Hint mirrors newTokenMissingError in internal/client/client.go so both
+// token-missing surfaces converge on the same recovery vocabulary. cmd's
+// applyNeedAuthorizationHint appends per-command scopes onto this Hint with
+// a "\n" join, so the action prompt is preserved even when scopes are added.
+//
+// Called from cmd/root.go.handleRootError when errors.As matches
+// *NeedAuthorizationError, before WriteTypedErrorEnvelope.
+func PromoteAuthError(err *internalauth.NeedAuthorizationError) error {
+	if err == nil {
+		return nil
+	}
+	return errs.NewAuthenticationError(errs.SubtypeTokenMissing,
+		"need_user_authorization (user: %s)", err.UserOpenId).
+		WithUserOpenID(err.UserOpenId).
+		WithHint("run: lark-cli auth login to re-authorize").
+		WithCause(err)
+}

internal/errcompat/promote_auth_test.go

@@ -0,0 +1,79 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package errcompat
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	internalauth "github.com/larksuite/cli/internal/auth"
+)
+
+func TestPromoteAuthError_PromotesNeedAuthorizationError(t *testing.T) {
+	needAuth := &internalauth.NeedAuthorizationError{UserOpenId: "u_xxx"}
+	got := PromoteAuthError(needAuth)
+
+	var authErr *errs.AuthenticationError
+	if !errors.As(got, &authErr) {
+		t.Fatalf("expected *errs.AuthenticationError, got %T", got)
+	}
+	if authErr.Subtype != errs.SubtypeTokenMissing {
+		t.Errorf("subtype = %v, want %v", authErr.Subtype, errs.SubtypeTokenMissing)
+	}
+
+	// Cause chain must preserve original *NeedAuthorizationError so legacy
+	// consumers (auth.IsNeedUserAuthorizationError + errors.As pattern in
+	// internal/auth/errors.go:42) still match.
+	var preserved *internalauth.NeedAuthorizationError
+	if !errors.As(got, &preserved) {
+		t.Error("Unwrap chain lost *NeedAuthorizationError — breaks auth.IsNeedUserAuthorizationError consumer")
+	}
+}
+
+func TestPromoteAuthError_PreservesNeedUserAuthorizationMarker(t *testing.T) {
+	needAuth := &internalauth.NeedAuthorizationError{UserOpenId: "u_xxx"}
+	got := PromoteAuthError(needAuth)
+	if !strings.Contains(got.Error(), "need_user_authorization") {
+		t.Errorf("Message must contain need_user_authorization marker, got: %q", got.Error())
+	}
+}
+
+func TestPromoteAuthError_PreservesUserOpenID(t *testing.T) {
+	needAuth := &internalauth.NeedAuthorizationError{UserOpenId: "u_test_open_id"}
+	got := PromoteAuthError(needAuth)
+
+	var authErr *errs.AuthenticationError
+	if !errors.As(got, &authErr) {
+		t.Fatalf("expected *errs.AuthenticationError, got %T", got)
+	}
+	if authErr.UserOpenID != "u_test_open_id" {
+		t.Errorf("UserOpenID = %q, want preserved", authErr.UserOpenID)
+	}
+}
+
+// TestPromoteAuthError_CarriesAuthLoginHint pins that the recovery action
+// prompt is attached at promotion time — without this Hint, downstream
+// consumers see authentication/token_missing but no "run: lark-cli auth login"
+// guidance, mirroring the pre-typed UX failure when NeedAuthorizationError
+// surfaced as a bare network error. cmd's applyNeedAuthorizationHint relies
+// on this Hint being non-empty so scope enrichment appends instead of
+// overwrites the recovery prompt.
+func TestPromoteAuthError_CarriesAuthLoginHint(t *testing.T) {
+	got := PromoteAuthError(&internalauth.NeedAuthorizationError{UserOpenId: "u_xxx"})
+	var authErr *errs.AuthenticationError
+	if !errors.As(got, &authErr) {
+		t.Fatalf("expected *errs.AuthenticationError, got %T", got)
+	}
+	if !strings.Contains(authErr.Hint, "lark-cli auth login") {
+		t.Errorf("Hint must guide user to re-authorize, got: %q", authErr.Hint)
+	}
+}
+
+func TestPromoteAuthError_Nil_ReturnsNil(t *testing.T) {
+	if got := PromoteAuthError(nil); got != nil {
+		t.Errorf("nil input should return nil, got %v", got)
+	}
+}

internal/errcompat/promote_test.go

@@ -0,0 +1,105 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package errcompat_test
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/errcompat"
+)
+
+func TestPromoteConfigError_TypeAuth_PromotesToAuthenticationError(t *testing.T) {
+	cfg := &core.ConfigError{
+		Type:    "auth",
+		Code:    3,
+		Message: "not logged in",
+		Hint:    "run: lark-cli auth login",
+	}
+	got := errcompat.PromoteConfigError(cfg)
+
+	var authErr *errs.AuthenticationError
+	if !errors.As(got, &authErr) {
+		t.Fatalf("expected *errs.AuthenticationError, got %T", got)
+	}
+	if authErr.Subtype != errs.SubtypeTokenMissing {
+		t.Errorf("subtype = %v, want %v", authErr.Subtype, errs.SubtypeTokenMissing)
+	}
+	// Cause chain must preserve original *core.ConfigError for errors.As compat.
+	var cfgPreserved *core.ConfigError
+	if !errors.As(got, &cfgPreserved) {
+		t.Error("Unwrap chain lost *core.ConfigError — breaks cmd/auth/list.go consumer")
+	}
+}
+
+func TestPromoteConfigError_TypeConfig_PromotesToConfigError(t *testing.T) {
+	cases := []struct {
+		name        string
+		msg         string
+		wantSubtype errs.Subtype
+	}{
+		{"not_configured", "not configured", errs.SubtypeNotConfigured},
+		{"invalid_config_parse", "failed to parse config", errs.SubtypeInvalidConfig},
+		{"invalid_config_keyword", "invalid config file", errs.SubtypeInvalidConfig},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			cfg := &core.ConfigError{Type: "config", Code: 3, Message: tc.msg}
+			got := errcompat.PromoteConfigError(cfg)
+
+			var ce *errs.ConfigError
+			if !errors.As(got, &ce) {
+				t.Fatalf("expected *errs.ConfigError, got %T", got)
+			}
+			if ce.Subtype != tc.wantSubtype {
+				t.Errorf("subtype = %v, want %v", ce.Subtype, tc.wantSubtype)
+			}
+		})
+	}
+}
+
+func TestPromoteConfigError_TypeDynamic_PromotesToConfigError(t *testing.T) {
+	for _, wsName := range []string{"openclaw", "hermes", "bind"} {
+		t.Run(wsName, func(t *testing.T) {
+			cfg := &core.ConfigError{Type: wsName, Code: 3, Message: "not configured"}
+			got := errcompat.PromoteConfigError(cfg)
+
+			var ce *errs.ConfigError
+			if !errors.As(got, &ce) {
+				t.Fatalf("expected *errs.ConfigError, got %T", got)
+			}
+			if ce.Subtype != errs.SubtypeNotConfigured {
+				t.Errorf("subtype = %v, want %v", ce.Subtype, errs.SubtypeNotConfigured)
+			}
+		})
+	}
+}
+
+func TestPromoteConfigError_Nil_ReturnsNil(t *testing.T) {
+	if got := errcompat.PromoteConfigError(nil); got != nil {
+		t.Errorf("nil input should return nil, got %v", got)
+	}
+}
+
+func TestPromoteConfigError_PreservesMessageHint(t *testing.T) {
+	cfg := &core.ConfigError{
+		Type:    "auth",
+		Message: "session expired (user: u_xxx)",
+		Hint:    "re-authenticate",
+	}
+	got := errcompat.PromoteConfigError(cfg)
+	if !strings.Contains(got.Error(), "session expired") {
+		t.Errorf("message lost in promotion: %v", got)
+	}
+	var authErr *errs.AuthenticationError
+	if !errors.As(got, &authErr) {
+		t.Fatalf("expected *errs.AuthenticationError, got %T", got)
+	}
+	if authErr.Hint != "re-authenticate" {
+		t.Errorf("hint = %q, want preserved", authErr.Hint)
+	}
+}

internal/hook/install.go

@@ -10,8 +10,8 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
+	"github.com/larksuite/cli/internal/output"
 )
 
 // Install wraps every runnable command's RunE so the hook chain fires
@@ -31,9 +31,8 @@ import (
 //     call), but Wrap is physically out of the path.
 //
 //   - **After observers always fire**, even when RunE returned an
-//     error. Wrap short-circuits via AbortError get converted to a
-//     typed *errs.ValidationError so cmd/root.go emits the right
-//     envelope.
+//     error. Wrap short-circuits via AbortError get converted to
+//     *output.ExitError so cmd/root.go emits the right envelope.
 //
 //   - **Denial layer / source are populated from cobra annotations
 //     before any hook fires.** populateInvocationDenial reads the
@@ -84,8 +83,8 @@ func wrapRunE(cmd *cobra.Command, reg *Registry, snapshot CommandViewSource) {
 		inv := newInvocation(view, args)
 
 		// Detect denial: a denied command's original RunE was already
-		// replaced by cmdpolicy.Apply with a denyStub that returns a
-		// typed error wrapping *platform.CommandDeniedError. We
+		// replaced by cmdpolicy.Apply with a denyStub that returns
+		// *output.ExitError wrapping *platform.CommandDeniedError. We
 		// invoke originalRunE once with a probe-only context (no args
 		// matter because DisableFlagParsing is set on denied commands)
 		// to extract its CommandDeniedError, but for V1 we use a
@@ -136,8 +135,8 @@ func wrapRunE(cmd *cobra.Command, reg *Registry, snapshot CommandViewSource) {
 			err = finalHandler(ctx, inv)
 		}
 
-		// Convert AbortError -> typed *errs.ValidationError so the
-		// envelope writer renders the structured envelope.
+		// Convert AbortError -> *output.ExitError so the envelope writer
+		// renders the structured "hook" type.
 		err = wrapAbortError(err)
 
 		inv.setErr(err)
@@ -196,13 +195,17 @@ func runObserverSafe(ctx context.Context, obs ObserverEntry, inv platform.Invoca
 	obs.Fn(ctx, inv)
 }
 
-// wrapAbortError converts *platform.AbortError into a typed
-// *errs.ValidationError (failed_precondition) so cmd/root.go's typed
-// envelope writer emits the structured JSON envelope. Non-AbortError
-// values pass through unchanged.
+// wrapAbortError converts *platform.AbortError into the equivalent
+// *output.ExitError so cmd/root.go's envelope writer emits the right
+// JSON structure (type="hook"). Non-AbortError values pass through
+// unchanged.
 //
-// The AbortError is preserved as the Cause so errors.As consumers can
-// still extract HookName / Reason / Detail in process.
+// Deprecated: wrapAbortError converts to a legacy *output.ExitError that
+// predates the typed error contract introduced by errs/. New code MUST NOT
+// add producers of this shape — hook abort signals should move to a typed
+// *errs.XxxError (typed hook error is tracked for the hook framework
+// migration PR). This helper is retained only while existing call sites are
+// migrated; it will be removed once they have moved to the typed surface.
 func wrapAbortError(err error) error {
 	if err == nil {
 		return nil
@@ -211,16 +214,27 @@ func wrapAbortError(err error) error {
 	if !errors.As(err, &ab) {
 		return err
 	}
-	return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", ab.Error()).
-		WithHint("plugin hook %q aborted this command; adjust the request to satisfy the hook's policy, or remove the plugin", ab.HookName).
-		WithCause(ab)
+	return &output.ExitError{
+		Code: output.ExitValidation,
+		Detail: &output.ErrDetail{
+			Type:    "hook",
+			Message: ab.Error(),
+			Detail: map[string]any{
+				"hook_name":   ab.HookName,
+				"reason":      ab.Reason,
+				"reason_code": "aborted",
+				"detail":      ab.Detail,
+			},
+		},
+		Err: ab,
+	}
 }
 
 // recoverWrap wraps a Wrapper so any panic anywhere in the plugin's
 // implementation -- including the wrapper FACTORY call (the
 // `func(next Handler) Handler` step) and the inner Handler call -- is
-// recovered and surfaced as a typed *errs.ValidationError
-// (failed_precondition). Without this guard, a panicking
+// recovered and surfaced as a structured *output.ExitError with
+// type="hook" and reason_code="panic". Without this guard, a panicking
 // plugin would crash the entire CLI process and break the structured-
 // error contract (downstream automation cannot parse a stack trace).
 //
@@ -255,17 +269,19 @@ func recoverWrap(fullName string, w platform.Wrapper) platform.Wrapper {
 		return func(ctx context.Context, inv platform.Invocation) (returned error) {
 			defer func() {
 				if r := recover(); r != nil {
-					// Preserve the panic value's error identity in the cause
-					// chain when it is an error, so errors.Is/As can still reach
-					// it; fall back to %v formatting for non-error panics.
-					cause := fmt.Errorf("hook %q panic: %v", fullName, r)
-					if e, ok := r.(error); ok {
-						cause = fmt.Errorf("hook %q panic: %w", fullName, e)
+					returned = &output.ExitError{
+						Code: output.ExitValidation,
+						Detail: &output.ErrDetail{
+							Type:    "hook",
+							Message: fmt.Sprintf("hook %q panicked: %v", fullName, r),
+							Detail: map[string]any{
+								"hook_name":   fullName,
+								"reason_code": "panic",
+								"reason":      fmt.Sprintf("%v", r),
+							},
+						},
+						Err: fmt.Errorf("hook %q panic: %v", fullName, r),
 					}
-					returned = errs.NewValidationError(errs.SubtypeFailedPrecondition,
-						"hook %q panicked: %v", fullName, r).
-						WithHint("plugin hook %q crashed while handling this command; report the panic to the plugin author or remove the plugin", fullName).
-						WithCause(cause)
 				}
 			}()
 			// Construct AFTER the recover is armed so a panicking

internal/hook/install_test.go

@@ -8,12 +8,10 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"strings"
 	"testing"
 
 	"github.com/spf13/cobra"
 
-	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/hook"
 	"github.com/larksuite/cli/internal/output"
@@ -210,10 +208,8 @@ func TestInstall_observerPanicIsolated(t *testing.T) {
 	}
 }
 
-// A Wrapper returning AbortError surfaces as a typed
-// *errs.ValidationError (failed_precondition, exit 2) so cmd/root.go's
-// envelope writer can serialise it. The original AbortError is preserved
-// as the Cause so errors.As consumers still reach HookName / Reason.
+// A Wrapper returning AbortError surfaces as *output.ExitError with
+// type="hook" so cmd/root.go's envelope writer can serialise it.
 func TestInstall_abortErrorBecomesExitError(t *testing.T) {
 	root := &cobra.Command{Use: "lark-cli"}
 	leaf := makeLeaf("+x")
@@ -238,28 +234,21 @@ func TestInstall_abortErrorBecomesExitError(t *testing.T) {
 	if err == nil {
 		t.Fatalf("Wrap aborted; expected error")
 	}
-	var ve *errs.ValidationError
-	if !errors.As(err, &ve) {
-		t.Fatalf("AbortError must convert to *errs.ValidationError, got %T %+v", err, err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("AbortError must convert to *output.ExitError, got %T %+v", err, err)
 	}
-	if ve.Subtype != errs.SubtypeFailedPrecondition {
-		t.Errorf("subtype = %q, want %q", ve.Subtype, errs.SubtypeFailedPrecondition)
+	if exitErr.Detail.Type != "hook" {
+		t.Errorf("envelope type = %q, want hook", exitErr.Detail.Type)
 	}
-	if code := output.ExitCodeOf(err); code != output.ExitValidation {
-		t.Errorf("exit code = %d, want ExitValidation (%d)", code, output.ExitValidation)
+	detail := exitErr.Detail.Detail.(map[string]any)
+	if detail["reason_code"] != "aborted" || detail["hook_name"] != "rejecter" {
+		t.Errorf("detail = %+v", detail)
 	}
-	// The hook name must be discoverable in the user-facing hint.
-	if !strings.Contains(ve.Hint, "rejecter") {
-		t.Errorf("hint must carry hook name rejecter, got %q", ve.Hint)
-	}
-	// The original AbortError must still be reachable via errors.As, with
-	// its attribution intact.
+	// The original AbortError must still be reachable via errors.As.
 	var ab *platform.AbortError
 	if !errors.As(err, &ab) {
-		t.Fatalf("error chain should expose *platform.AbortError")
-	}
-	if ab.HookName != "rejecter" || ab.Reason != "policy says no" {
-		t.Errorf("AbortError = %+v, want HookName=rejecter Reason=%q", ab, "policy says no")
+		t.Errorf("error chain should expose *platform.AbortError")
 	}
 }
 
@@ -328,19 +317,13 @@ func (fakeViewSourceByPath) View(c *cobra.Command) platform.CommandView {
 
 func checkHookName(t *testing.T, err error, want string) {
 	t.Helper()
-	// The abort surfaces as a typed *errs.ValidationError; the original
-	// (namespaced copy of the) AbortError is preserved as its Cause, so
-	// errors.As reaches the attribution the framework wrote.
-	var ve *errs.ValidationError
-	if !errors.As(err, &ve) {
-		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	var exitErr *output.ExitError
+	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
+		t.Fatalf("expected ExitError, got %T", err)
 	}
-	var ab *platform.AbortError
-	if !errors.As(err, &ab) {
-		t.Fatalf("error chain should expose *platform.AbortError, got %T", err)
-	}
-	if ab.HookName != want {
-		t.Errorf("hook_name = %v, want %v", ab.HookName, want)
+	detail := exitErr.Detail.Detail.(map[string]any)
+	if detail["hook_name"] != want {
+		t.Errorf("hook_name = %v, want %v", detail["hook_name"], want)
 	}
 }
 

internal/keychain/keychain.go

@@ -9,7 +9,7 @@ import (
 	"errors"
 	"fmt"
 
-	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/output"
 )
 
 var (
@@ -28,9 +28,8 @@ const (
 	LarkCliService = "lark-cli"
 )
 
-// wrapError wraps underlying keychain failures into a typed *errs.APIError
-// (exit code 1) carrying a hint for troubleshooting keychain access issues.
-// nil and ErrNotFound pass through unchanged.
+// wrapError is a helper to wrap underlying errors into output.ExitError.
+// It formats the error message and provides a hint for troubleshooting keychain access issues.
 func wrapError(op string, err error) error {
 	if err == nil || errors.Is(err, ErrNotFound) {
 		return err
@@ -49,9 +48,7 @@ func wrapError(op string, err error) error {
 		LogAuthError("keychain", op, fmt.Errorf("keychain %s error: %w", op, err))
 	}()
 
-	return errs.NewAPIError(errs.SubtypeUnknown, "%s", msg).
-		WithHint("%s", hint).
-		WithCause(err)
+	return output.ErrWithHint(output.ExitAPI, "config", msg, hint)
 }
 
 // KeychainAccess abstracts keychain Get/Set/Remove for dependency injection.

internal/keychain/keychain_darwin_test.go

@@ -13,7 +13,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/output"
 	"github.com/zalando/go-keyring"
 )
 
@@ -367,7 +367,7 @@ func TestPlatformGetSurfacesKeychainBlocked(t *testing.T) {
 // the blocked path used an anonymous errors.New string, so the extraHint
 // `errors.Is` check (only matched errNotInitialized) couldn't recognize it.
 //
-// Asserts the full wrapError → typed APIError hint pipeline:
+// Asserts the full wrapError → ExitError.Detail.Hint pipeline:
 //   - errKeychainBlocked + errNotInitialized → hint mentions keychain-downgrade
 //   - "keychain is corrupted" (downgrade would re-read the same bad bytes) → no mention
 //   - generic errors → no mention
@@ -388,13 +388,13 @@ func TestWrapErrorHintMentionsDowngradeForRecoverableCases(t *testing.T) {
 	for _, tc := range cases {
 		t.Run(tc.name, func(t *testing.T) {
 			err := wrapError("Get", tc.err)
-			var apiErr *errs.APIError
-			if !errors.As(err, &apiErr) {
-				t.Fatalf("wrapError returned %#v; expected *errs.APIError", err)
+			var ee *output.ExitError
+			if !errors.As(err, &ee) || ee.Detail == nil {
+				t.Fatalf("wrapError returned %#v; expected *output.ExitError with Detail", err)
 			}
-			got := strings.Contains(apiErr.Hint, "keychain-downgrade")
+			got := strings.Contains(ee.Detail.Hint, "keychain-downgrade")
 			if got != tc.wantHint {
-				t.Fatalf("hint mentions keychain-downgrade = %v, want %v\n  full hint: %q", got, tc.wantHint, apiErr.Hint)
+				t.Fatalf("hint mentions keychain-downgrade = %v, want %v\n  full hint: %q", got, tc.wantHint, ee.Detail.Hint)
 			}
 		})
 	}

internal/keychain/keychain_typed_error_test.go

@@ -1,58 +0,0 @@
-// Copyright (c) 2026 Lark Technologies Pte. Ltd.
-// SPDX-License-Identifier: MIT
-
-package keychain
-
-import (
-	"errors"
-	"strings"
-	"testing"
-
-	"github.com/larksuite/cli/errs"
-	"github.com/larksuite/cli/internal/output"
-)
-
-// TestWrapErrorEmitsTypedAPIError pins the wrapError contract after the typed
-// errs migration: keychain failures surface as *errs.APIError with subtype
-// "unknown", exit code 1 (ExitAPI, unchanged from the legacy behavior), a
-// non-empty troubleshooting hint, and the underlying error reachable via
-// errors.Unwrap.
-func TestWrapErrorEmitsTypedAPIError(t *testing.T) {
-	underlying := errors.New("keyring backend exploded")
-	err := wrapError("Set", underlying)
-
-	var apiErr *errs.APIError
-	if !errors.As(err, &apiErr) {
-		t.Fatalf("wrapError returned %T (%v); expected *errs.APIError", err, err)
-	}
-	if apiErr.Subtype != errs.SubtypeUnknown {
-		t.Errorf("subtype = %q, want %q", apiErr.Subtype, errs.SubtypeUnknown)
-	}
-	if got := output.ExitCodeOf(err); got != output.ExitAPI {
-		t.Errorf("exit code = %d, want %d (ExitAPI, legacy parity)", got, output.ExitAPI)
-	}
-	if !strings.Contains(apiErr.Message, "keychain Set failed") {
-		t.Errorf("message = %q, want it to contain %q", apiErr.Message, "keychain Set failed")
-	}
-	if apiErr.Hint == "" {
-		t.Error("hint is empty; wrapError must carry a troubleshooting hint")
-	}
-	if !errors.Is(err, underlying) {
-		t.Error("underlying error not reachable via errors.Is; WithCause missing")
-	}
-}
-
-// TestWrapErrorPassthrough pins the non-wrapping paths: nil stays nil and
-// ErrNotFound is forwarded untouched so callers can keep using errors.Is.
-func TestWrapErrorPassthrough(t *testing.T) {
-	if err := wrapError("Get", nil); err != nil {
-		t.Errorf("wrapError(nil) = %v, want nil", err)
-	}
-	if err := wrapError("Get", ErrNotFound); !errors.Is(err, ErrNotFound) {
-		t.Errorf("wrapError(ErrNotFound) = %v, want ErrNotFound passthrough", err)
-	}
-	var apiErr *errs.APIError
-	if err := wrapError("Get", ErrNotFound); errors.As(err, &apiErr) {
-		t.Errorf("wrapError(ErrNotFound) wrapped into %T; want passthrough", apiErr)
-	}
-}

internal/output/bare.go

@@ -1,19 +0,0 @@
-// Copyright (c) 2026 Lark Technologies Pte. Ltd.
-// SPDX-License-Identifier: MIT
-
-package output
-
-import "fmt"
-
-// BareError is the silent-exit signal for commands whose stdout already
-// carries the complete answer and that only need the matching exit code
-// without a stderr envelope. Two cases use it: a predicate writing its yes/no
-// JSON (e.g. `auth check` exiting non-zero on a no-token state), and a command
-// emitting its own structured result envelope under `--json` (e.g. `update`).
-// Deliberately outside the typed-envelope contract.
-type BareError struct{ Code int }
-
-func (e *BareError) Error() string { return fmt.Sprintf("bare exit %d", e.Code) }
-
-// ErrBare builds the silent-exit signal with the given code.
-func ErrBare(code int) *BareError { return &BareError{Code: code} }

internal/output/bare_test.go

@@ -1,23 +0,0 @@
-// Copyright (c) 2026 Lark Technologies Pte. Ltd.
-// SPDX-License-Identifier: MIT
-
-package output_test
-
-import (
-	"testing"
-
-	"github.com/larksuite/cli/internal/output"
-)
-
-func TestExitCodeOfBareError(t *testing.T) {
-	if got := output.ExitCodeOf(output.ErrBare(3)); got != 3 {
-		t.Errorf("ExitCodeOf(ErrBare(3)) = %d, want 3", got)
-	}
-}
-
-// TestErrBareReturnsBareError pins that the silent-exit signal is the
-// dedicated *output.BareError type, keeping that contract on its own
-// narrow signal type.
-func TestErrBareReturnsBareError(t *testing.T) {
-	var _ *output.BareError = output.ErrBare(1)
-}

internal/output/emit_test.go

@@ -80,9 +80,6 @@ func TestScanForSafety_ModeBlock_WithAlert(t *testing.T) {
 	if safetyErr.Category != errs.CategoryPolicy || safetyErr.Subtype != errs.SubtypeContentSafety {
 		t.Errorf("problem = %s/%s, want %s/%s", safetyErr.Category, safetyErr.Subtype, errs.CategoryPolicy, errs.SubtypeContentSafety)
 	}
-	if got := ExitCodeOf(result.BlockErr); got != ExitContentSafety {
-		t.Errorf("exit code = %d, want %d", got, ExitContentSafety)
-	}
 	if len(safetyErr.Rules) != 1 || safetyErr.Rules[0] != "r1" {
 		t.Errorf("rules = %v, want [r1]", safetyErr.Rules)
 	}

internal/output/envelope.go

@@ -13,6 +13,58 @@ type Envelope struct {
 	Notice             map[string]interface{} `json:"_notice,omitempty"`
 }
 
+// ErrorEnvelope is the standard error response wrapper.
+//
+// Deprecated: ErrorEnvelope belongs to the legacy *output.ExitError surface
+// that predates the typed error contract introduced by errs/. New code MUST
+// NOT use it — the typed envelope shape is owned by
+// internal/output.WriteTypedErrorEnvelope which marshals typed errs.* errors
+// directly via JSON reflection (no wrapper struct needed). This struct is
+// retained only while existing *ExitError call sites are migrated; it will
+// be removed once they have moved to the typed surface.
+type ErrorEnvelope struct {
+	OK       bool                   `json:"ok"`
+	Identity string                 `json:"identity,omitempty"`
+	Error    *ErrDetail             `json:"error"`
+	Meta     *Meta                  `json:"meta,omitempty"`
+	Notice   map[string]interface{} `json:"_notice,omitempty"`
+}
+
+// ErrDetail describes a structured error.
+//
+// Deprecated: ErrDetail belongs to the legacy *output.ExitError surface that
+// predates the typed error contract introduced by errs/. New code MUST NOT
+// use it — typed errs.* structs embed errs.Problem and own their wire shape
+// via JSON tags (Category, Subtype, Hint, etc. promote to the top level).
+// This struct is retained only while existing *ExitError call sites are
+// migrated; it will be removed once they have moved to the typed surface.
+type ErrDetail struct {
+	Type       string      `json:"type"`
+	Code       int         `json:"code,omitempty"`
+	Message    string      `json:"message"`
+	Hint       string      `json:"hint,omitempty"`
+	ConsoleURL string      `json:"console_url,omitempty"`
+	Risk       *RiskDetail `json:"risk,omitempty"`
+	Detail     interface{} `json:"detail,omitempty"`
+}
+
+// RiskDetail carries agent-protocol risk information alongside
+// confirmation_required errors. Level is one of "read" | "write" |
+// "high-risk-write". Action identifies the command for the agent (e.g.
+// "mail +send", "drive.files.delete").
+//
+// Deprecated: RiskDetail is reachable only via *output.ExitError.Detail.Risk,
+// part of the legacy envelope surface that predates the typed error contract
+// introduced by errs/. New code MUST NOT use it — confirmation-required
+// signals belong on *errs.ConfirmationRequiredError (its own typed extension
+// fields can carry agent-protocol metadata directly). This struct is
+// retained only while existing *ExitError call sites are migrated; it will
+// be removed once they have moved to the typed surface.
+type RiskDetail struct {
+	Level  string `json:"level"`
+	Action string `json:"action"`
+}
+
 // Meta carries optional metadata in envelope responses.
 type Meta struct {
 	Count    int    `json:"count,omitempty"`

internal/output/errors.go

@@ -6,19 +6,177 @@ package output
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 
 	"github.com/larksuite/cli/errs"
 )
 
+// ExitError is a structured error that carries an exit code and optional detail.
+// It is propagated up the call chain and handled by main.go to produce
+// a JSON error envelope on stderr and the correct exit code.
+//
+// Deprecated: legacy error type. Return a typed *errs.XxxError instead
+// (see errs/types.go).
+type ExitError struct {
+	Code   int
+	Detail *ErrDetail
+	Err    error
+	Raw    bool // when true, the dispatcher skips enrichment (e.g. enrichPermissionError) and preserves the original error detail
+}
+
+func (e *ExitError) Error() string {
+	if e.Detail != nil {
+		return e.Detail.Message
+	}
+	if e.Err != nil {
+		return e.Err.Error()
+	}
+	return fmt.Sprintf("exit %d", e.Code)
+}
+
+func (e *ExitError) Unwrap() error {
+	return e.Err
+}
+
+// MarkRaw sets Raw=true on an ExitError so that the dispatcher skips
+// enrichment (e.g. enrichPermissionError, enrichMissingScopeError) and
+// preserves the upstream message verbatim. Returns the original error
+// unchanged if it is not (or does not wrap) an ExitError.
+//
+// Used by `cmd/api` and other "passthrough" call sites where the caller
+// wants the original Lark response wording rather than the enriched
+// message/hint variant.
+func MarkRaw(err error) error {
+	var exitErr *ExitError
+	if errors.As(err, &exitErr) {
+		exitErr.Raw = true
+	}
+	return err
+}
+
+// WriteErrorEnvelope writes a JSON error envelope for the given ExitError to w.
+//
+// Deprecated: legacy envelope writer. Typed errors are dispatched by
+// cmd/root.go through WriteTypedErrorEnvelope.
+func WriteErrorEnvelope(w io.Writer, err *ExitError, identity string) {
+	if err.Detail == nil {
+		return
+	}
+	env := &ErrorEnvelope{
+		OK:       false,
+		Identity: identity,
+		Error:    err.Detail,
+		Notice:   GetNotice(),
+	}
+	var buf bytes.Buffer
+	enc := json.NewEncoder(&buf)
+	enc.SetEscapeHTML(false)
+	enc.SetIndent("", "  ")
+	if err := enc.Encode(env); err != nil {
+		return
+	}
+	// Encode appends a trailing newline; write directly.
+	buf.WriteTo(w)
+}
+
+// --- Convenience constructors ---
+
+// Errorf creates an ExitError with the given code, type, and formatted message.
+//
+// Deprecated: construct a typed *errs.XxxError directly
+// (e.g. errs.NewValidationError, errs.NewInternalError).
+func Errorf(code int, errType, format string, args ...any) *ExitError {
+	var err error
+	for _, arg := range args {
+		if e, ok := arg.(error); ok {
+			err = e
+			break
+		}
+	}
+	return &ExitError{
+		Code:   code,
+		Detail: &ErrDetail{Type: errType, Message: fmt.Sprintf(format, args...)},
+		Err:    err,
+	}
+}
+
+// ErrValidation creates a validation ExitError (exit 2, wire type
+// "validation"). The legacy envelope emits only `type`+`message`; for
+// `subtype` / `param` extension fields, construct a typed
+// *errs.ValidationError directly.
+func ErrValidation(format string, args ...any) *ExitError {
+	return Errorf(ExitValidation, "validation", format, args...)
+}
+
+// ErrAuth creates an authentication ExitError (exit 3, wire type "auth").
+//
+// New code should construct a typed *errs.AuthenticationError directly;
+// the typed envelope emits the canonical `type: "authentication"`.
+// Migrating an existing call site flips a user-visible wire field.
+func ErrAuth(format string, args ...any) *ExitError {
+	return Errorf(ExitAuth, "auth", format, args...)
+}
+
+// ErrNetwork creates a network ExitError (exit 4, wire type "network").
+// The legacy envelope emits only `type`+`message`; for `subtype`
+// ("transport" / "timeout" / "tls" / "dns") and retryable hint extension
+// fields, construct a typed *errs.NetworkError directly.
+func ErrNetwork(format string, args ...any) *ExitError {
+	return Errorf(ExitNetwork, "network", format, args...)
+}
+
+// ErrAPI creates an API ExitError using ClassifyLarkError.
+// For permission errors, uses a concise message; the raw API response is preserved in Detail.
+//
+// Deprecated: route through errclass.BuildAPIError, which emits typed
+// *errs.PermissionError / *errs.AuthenticationError / etc. with
+// MissingScopes, ConsoleURL, and Identity at the source.
+func ErrAPI(larkCode int, msg string, detail any) *ExitError {
+	exitCode, errType, hint := ClassifyLarkError(larkCode, msg)
+	if errType == "permission" {
+		msg = fmt.Sprintf("Permission denied [%d]", larkCode)
+	}
+	return &ExitError{
+		Code: exitCode,
+		Detail: &ErrDetail{
+			Type:    errType,
+			Code:    larkCode,
+			Message: msg,
+			Hint:    hint,
+			Detail:  detail,
+		},
+	}
+}
+
+// ErrWithHint creates an ExitError with a hint string.
+//
+// Deprecated: construct a typed *errs.XxxError directly and set its Hint
+// field; the typed envelope promotes Problem.Hint to the wire.
+func ErrWithHint(code int, errType, msg, hint string) *ExitError {
+	return &ExitError{
+		Code:   code,
+		Detail: &ErrDetail{Type: errType, Message: msg, Hint: hint},
+	}
+}
+
+// ErrBare creates an ExitError with only an exit code and no envelope.
+// The predicate-command silent-exit signal: stdout has already been
+// written and the caller wants the matching exit code without a stderr
+// envelope (e.g. `auth check` emitting its JSON result and then exiting
+// non-zero on a no-token state). Outside the typed-envelope contract.
+func ErrBare(code int) *ExitError {
+	return &ExitError{Code: code}
+}
+
 // PartialFailureError is the exit signal for a batch / multi-status command that
 // has already written an ok:false result envelope to stdout. The per-item
 // outcomes are the primary, machine-readable output and live on stdout, so the
 // dispatcher sets only the exit code and writes nothing to stderr.
 //
-// It is deliberately distinct from ErrBare (the stdout-carries-the-answer
-// silent-exit signal) so that contract stays narrow, and from a typed *errs.XxxError
+// It is deliberately distinct from ErrBare (the predicate silent-exit signal)
+// so the predicate contract stays narrow, and from a typed *errs.XxxError
 // (which owns the stderr error envelope): a partial failure is a result, not an
 // error envelope.
 type PartialFailureError struct {
@@ -43,8 +201,8 @@ func PartialFailure(code int) *PartialFailureError {
 // Two-stage write:
 //
 //  1. Serialize the envelope into an in-memory buffer. If serialization
-//     fails, return false so the dispatcher handles it via its signal /
-//     usage-error branches; nothing is written to w.
+//     fails, return false so the dispatcher falls back to the legacy
+//     envelope path; nothing is written to w.
 //  2. Best-effort write of the serialized bytes to w. A partial write is
 //     accepted (return value still true): the typed exit code has already
 //     been determined upstream by handleRootError calling ExitCodeOf(err)
@@ -53,8 +211,8 @@ func PartialFailure(code int) *PartialFailureError {
 //     parse-or-skip on malformed JSON.
 //
 // Returns true when err was a typed error and serialization succeeded.
-// Returns false only when err carries no Problem (the dispatcher then handles
-// it via its signal / usage-error branches) or when JSON encoding itself failed.
+// Returns false only when err carries no Problem (caller should fall back
+// to WriteErrorEnvelope) or when JSON encoding itself failed.
 func WriteTypedErrorEnvelope(w io.Writer, err error, identity string) bool {
 	typed, ok := errs.UnwrapTypedError(err)
 	if !ok {
@@ -71,8 +229,8 @@ func WriteTypedErrorEnvelope(w io.Writer, err error, identity string) bool {
 	enc.SetEscapeHTML(false)
 	enc.SetIndent("", "  ")
 	if encErr := enc.Encode(env); encErr != nil {
-		// Encoding failed — emit nothing here; the dispatcher's fall-through
-		// branches still surface the error, so stderr is never blank.
+		// Encoding failed — emit nothing here and let the dispatcher fall
+		// back to the legacy envelope writer so stderr is never blank.
 		return false
 	}
 	// Best-effort write. Partial-write does not downgrade the success status:
@@ -85,7 +243,7 @@ func WriteTypedErrorEnvelope(w io.Writer, err error, identity string) bool {
 
 // typedEnvelope wraps a typed error for wire emission. Error is `error` so the
 // underlying typed error's own json tags determine the inner shape via
-// encoding/json reflection; Notice mirrors the success Envelope's notice (see
+// encoding/json reflection; Notice mirrors the existing ErrorEnvelope (see
 // GetNotice in envelope.go).
 type typedEnvelope struct {
 	OK       bool                   `json:"ok"`

internal/output/errors_test.go

@@ -4,6 +4,9 @@
 package output
 
 import (
+	"bytes"
+	"encoding/json"
+	"errors"
 	"io"
 	"testing"
 
@@ -33,9 +36,10 @@ func (f *failingWriter) Write(p []byte) (int, error) {
 
 // TestWriteTypedErrorEnvelope_PartialWritePreservesSuccessStatus pins that
 // when serialization succeeds but the underlying write fails mid-envelope,
-// WriteTypedErrorEnvelope returns true so the dispatcher honors the typed
-// exit code instead of reclassifying the error. Exit code is preserved
-// separately by handleRootError computing ExitCodeOf(err) before the write.
+// WriteTypedErrorEnvelope returns true so the dispatcher does NOT fall
+// through to the legacy "Error:" path and clobber the typed exit code with
+// 1. Exit code is preserved separately by handleRootError computing
+// ExitCodeOf(err) before the write.
 func TestWriteTypedErrorEnvelope_PartialWritePreservesSuccessStatus(t *testing.T) {
 	err := errs.NewAuthenticationError(errs.SubtypeTokenExpired, "token expired")
 	w := &failingWriter{limit: 20} // dies mid-envelope
@@ -44,6 +48,89 @@ func TestWriteTypedErrorEnvelope_PartialWritePreservesSuccessStatus(t *testing.T
 	}
 }
 
+func TestWriteErrorEnvelope_WithNotice(t *testing.T) {
+	// Set up PendingNotice
+	origNotice := PendingNotice
+	PendingNotice = func() map[string]interface{} {
+		return map[string]interface{}{
+			"update": map[string]interface{}{
+				"current": "1.0.0",
+				"latest":  "2.0.0",
+			},
+		}
+	}
+	defer func() { PendingNotice = origNotice }()
+
+	exitErr := &ExitError{
+		Code:   1,
+		Detail: &ErrDetail{Type: "api_error", Message: "something failed"},
+	}
+
+	var buf bytes.Buffer
+	WriteErrorEnvelope(&buf, exitErr, "user")
+
+	var env map[string]interface{}
+	if err := json.Unmarshal(buf.Bytes(), &env); err != nil {
+		t.Fatalf("failed to parse output: %v", err)
+	}
+
+	// Verify _notice is present
+	notice, ok := env["_notice"].(map[string]interface{})
+	if !ok {
+		t.Fatal("expected _notice field in output")
+	}
+	update, ok := notice["update"].(map[string]interface{})
+	if !ok {
+		t.Fatal("expected _notice.update field")
+	}
+	if update["latest"] != "2.0.0" {
+		t.Errorf("expected latest=2.0.0, got %v", update["latest"])
+	}
+
+	// Verify standard fields
+	if env["ok"] != false {
+		t.Error("expected ok=false")
+	}
+	if env["identity"] != "user" {
+		t.Errorf("expected identity=user, got %v", env["identity"])
+	}
+}
+
+func TestWriteErrorEnvelope_WithoutNotice(t *testing.T) {
+	// Ensure PendingNotice is nil
+	origNotice := PendingNotice
+	PendingNotice = nil
+	defer func() { PendingNotice = origNotice }()
+
+	exitErr := &ExitError{
+		Code:   1,
+		Detail: &ErrDetail{Type: "api_error", Message: "something failed"},
+	}
+
+	var buf bytes.Buffer
+	WriteErrorEnvelope(&buf, exitErr, "bot")
+
+	var env map[string]interface{}
+	if err := json.Unmarshal(buf.Bytes(), &env); err != nil {
+		t.Fatalf("failed to parse output: %v", err)
+	}
+
+	if _, ok := env["_notice"]; ok {
+		t.Error("expected no _notice field when PendingNotice is nil")
+	}
+}
+
+func TestWriteErrorEnvelope_NilDetail(t *testing.T) {
+	exitErr := &ExitError{Code: 1}
+
+	var buf bytes.Buffer
+	WriteErrorEnvelope(&buf, exitErr, "user")
+
+	if buf.Len() != 0 {
+		t.Errorf("expected no output for nil Detail, got: %s", buf.String())
+	}
+}
+
 func TestGetNotice(t *testing.T) {
 	// Nil PendingNotice → nil
 	origNotice := PendingNotice
@@ -69,3 +156,89 @@ func TestGetNotice(t *testing.T) {
 
 	PendingNotice = origNotice
 }
+
+// TestErrValidation_LegacyExitErrorShape pins the wire contract for
+// output.ErrValidation: the helper MUST return *output.ExitError (so
+// callers using errors.As(&exitErr) continue to work), with wire fields
+// restricted to type+message — no `subtype` emission. Typed
+// *errs.ValidationError carries the extension fields when needed.
+func TestErrValidation_LegacyExitErrorShape(t *testing.T) {
+	err := ErrValidation("bad arg: %s", "x")
+
+	var exitErr *ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("ErrValidation must return *ExitError, got %T", err)
+	}
+	if exitErr.Code != ExitValidation {
+		t.Errorf("Code = %d, want ExitValidation (%d)", exitErr.Code, ExitValidation)
+	}
+	if exitErr.Detail == nil {
+		t.Fatal("Detail must be populated")
+	}
+	if exitErr.Detail.Type != "validation" {
+		t.Errorf("Detail.Type = %q, want %q", exitErr.Detail.Type, "validation")
+	}
+	if exitErr.Detail.Message != "bad arg: x" {
+		t.Errorf("Detail.Message = %q, want %q", exitErr.Detail.Message, "bad arg: x")
+	}
+
+	// Wire envelope must have only type+message — no subtype field.
+	var buf bytes.Buffer
+	WriteErrorEnvelope(&buf, exitErr, "user")
+	var wire map[string]any
+	if err := json.Unmarshal(buf.Bytes(), &wire); err != nil {
+		t.Fatalf("envelope JSON parse failed: %v\nraw: %s", err, buf.String())
+	}
+	errObj, ok := wire["error"].(map[string]any)
+	if !ok {
+		t.Fatalf("envelope missing 'error' object; got: %s", buf.String())
+	}
+	if _, hasSubtype := errObj["subtype"]; hasSubtype {
+		t.Errorf("legacy ErrValidation envelope must NOT emit `subtype`; got: %s", buf.String())
+	}
+	if errObj["type"] != "validation" {
+		t.Errorf("envelope error.type = %v, want \"validation\"", errObj["type"])
+	}
+}
+
+// TestErrNetwork_LegacyExitErrorShape pins the wire contract for
+// output.ErrNetwork: same legacy *output.ExitError shape as ErrValidation —
+// no subtype field, errors.As(&exitErr) must succeed, exit code ExitNetwork.
+func TestErrNetwork_LegacyExitErrorShape(t *testing.T) {
+	err := ErrNetwork("conn refused: %s", "10.0.0.1")
+
+	var exitErr *ExitError
+	if !errors.As(err, &exitErr) {
+		t.Fatalf("ErrNetwork must return *ExitError, got %T", err)
+	}
+	if exitErr.Code != ExitNetwork {
+		t.Errorf("Code = %d, want ExitNetwork (%d)", exitErr.Code, ExitNetwork)
+	}
+	if exitErr.Detail == nil {
+		t.Fatal("Detail must be populated")
+	}
+	if exitErr.Detail.Type != "network" {
+		t.Errorf("Detail.Type = %q, want %q", exitErr.Detail.Type, "network")
+	}
+	if exitErr.Detail.Message != "conn refused: 10.0.0.1" {
+		t.Errorf("Detail.Message = %q, want %q", exitErr.Detail.Message, "conn refused: 10.0.0.1")
+	}
+
+	// Wire envelope must have only type+message — no subtype field.
+	var buf bytes.Buffer
+	WriteErrorEnvelope(&buf, exitErr, "user")
+	var wire map[string]any
+	if err := json.Unmarshal(buf.Bytes(), &wire); err != nil {
+		t.Fatalf("envelope JSON parse failed: %v\nraw: %s", err, buf.String())
+	}
+	errObj, ok := wire["error"].(map[string]any)
+	if !ok {
+		t.Fatalf("envelope missing 'error' object; got: %s", buf.String())
+	}
+	if _, hasSubtype := errObj["subtype"]; hasSubtype {
+		t.Errorf("legacy ErrNetwork envelope must NOT emit `subtype`; got: %s", buf.String())
+	}
+	if errObj["type"] != "network" {
+		t.Errorf("envelope error.type = %v, want \"network\"", errObj["type"])
+	}
+}

internal/output/exitcode.go

@@ -47,9 +47,12 @@ func ExitCodeForCategory(cat errs.Category) int {
 }
 
 // ExitCodeOf returns the shell exit code for any error.
-//   - typed errors (*errs.PermissionError, *errs.APIError, *errs.ConfigError,
-//     *errs.AuthenticationError, ...) → routed by Category
-//   - *PartialFailureError / *BareError signals → their own Code field
+//   - typed errors (*errs.PermissionError, *errs.APIError, ...) → routed by Category
+//   - legacy *output.ExitError → uses its own Code field
+//   - *core.ConfigError → reaches the dispatcher as a legacy
+//     *output.ExitError via cmd/root asExitError (stage 1); the typed
+//     promotion path through internal/errcompat.PromoteConfigError is
+//     reserved for stage 2+.
 //   - untyped → ExitInternal
 func ExitCodeOf(err error) int {
 	if err == nil {
@@ -62,9 +65,9 @@ func ExitCodeOf(err error) int {
 	if errors.As(err, &pfErr) {
 		return pfErr.Code
 	}
-	var bare *BareError
-	if errors.As(err, &bare) {
-		return bare.Code
+	var exitErr *ExitError
+	if errors.As(err, &exitErr) {
+		return exitErr.Code
 	}
 	return ExitInternal
 }

internal/output/jq.go

@@ -10,8 +10,6 @@ import (
 	"math/big"
 
 	"github.com/itchyny/gojq"
-
-	"github.com/larksuite/cli/errs"
 )
 
 // JqFilter applies a jq expression to data and writes the results to w.
@@ -33,11 +31,11 @@ func JqFilterRaw(w io.Writer, data interface{}, expr string) error {
 func jqFilter(w io.Writer, data interface{}, expr string, raw bool) error {
 	query, err := gojq.Parse(expr)
 	if err != nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "invalid jq expression: %s", err).WithCause(err)
+		return ErrValidation("invalid jq expression: %s", err)
 	}
 	code, err := gojq.Compile(query)
 	if err != nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "invalid jq expression: %s", err).WithCause(err)
+		return ErrValidation("invalid jq expression: %s", err)
 	}
 
 	// Normalize data through toGeneric so typed structs become map[string]any.
@@ -52,7 +50,7 @@ func jqFilter(w io.Writer, data interface{}, expr string, raw bool) error {
 			break
 		}
 		if err, isErr := v.(error); isErr {
-			return errs.NewAPIError(errs.SubtypeUnknown, "jq error: %s", err).WithCause(err)
+			return Errorf(ExitAPI, "jq_error", "jq error: %s", err)
 		}
 		if err := writeJqValue(w, v, raw); err != nil {
 			return err
@@ -68,10 +66,10 @@ func ValidateJqFlags(jqExpr, outputFlag, format string) error {
 		return nil
 	}
 	if outputFlag != "" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--jq and --output are mutually exclusive")
+		return ErrValidation("--jq and --output are mutually exclusive")
 	}
 	if format != "" && format != "json" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--jq and --format %s are mutually exclusive", format)
+		return ErrValidation("--jq and --format %s are mutually exclusive", format)
 	}
 	return ValidateJqExpression(jqExpr)
 }
@@ -80,11 +78,11 @@ func ValidateJqFlags(jqExpr, outputFlag, format string) error {
 func ValidateJqExpression(expr string) error {
 	query, err := gojq.Parse(expr)
 	if err != nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "invalid jq expression: %s", err).WithCause(err)
+		return ErrValidation("invalid jq expression: %s", err)
 	}
 	_, err = gojq.Compile(query)
 	if err != nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "invalid jq expression: %s", err).WithCause(err)
+		return ErrValidation("invalid jq expression: %s", err)
 	}
 	return nil
 }
@@ -116,13 +114,13 @@ func writeJqValue(w io.Writer, v interface{}, raw bool) error {
 			enc.SetEscapeHTML(false)
 			enc.SetIndent("", "  ")
 			if err := enc.Encode(v); err != nil {
-				return errs.NewInternalError(errs.SubtypeSDKError, "failed to marshal jq result: %s", err).WithCause(err)
+				return Errorf(ExitInternal, "jq_error", "failed to marshal jq result: %s", err)
 			}
 			return nil
 		}
 		b, err := json.MarshalIndent(v, "", "  ")
 		if err != nil {
-			return errs.NewInternalError(errs.SubtypeSDKError, "failed to marshal jq result: %s", err).WithCause(err)
+			return Errorf(ExitInternal, "jq_error", "failed to marshal jq result: %s", err)
 		}
 		fmt.Fprintln(w, string(b))
 	}

internal/output/lark_errors.go

@@ -3,13 +3,19 @@
 
 package output
 
+import (
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/errclass"
+)
+
 // Lark API generic error code constants.
 // ref: https://open.feishu.cn/document/server-docs/api-call-guide/generic-error-code
 //
 // Kept as exported identifiers because external shortcut packages reference
 // them by name (e.g. LarkErrOwnershipMismatch). The canonical Category /
 // Subtype / Retryable metadata for each code lives in internal/errclass and
-// must remain the single source of truth.
+// must remain the single source of truth — ClassifyLarkError below resolves
+// classification through errclass.LookupCodeMeta.
 const (
 	// Auth: token missing / invalid / expired.
 	LarkErrTokenMissing = 99991661 // Authorization header missing or empty
@@ -72,8 +78,7 @@ const (
 	// Mail send: account / mailbox-level failures returned by
 	// POST /open-apis/mail/v1/user_mailboxes/:user_mailbox_id/drafts/:draft_id/send.
 	// Mail v1 uses service-scoped 123xxxx codes; keep the full upstream code
-	// because the typed envelope preserves Problem.Code exactly as returned by
-	// the server.
+	// because ErrAPI preserves Detail.Code exactly as returned by the server.
 	// These codes indicate the entire batch will keep failing identically and
 	// are consumed by shortcuts/mail.isFatalSendErr to abort early.
 	LarkErrMailboxNotFound        = 1234013 // mailbox not found or not active
@@ -83,3 +88,147 @@ const (
 	LarkErrMailQuota              = 1236010 // mail quota limit
 	LarkErrTenantStorageLimit     = 1236013 // tenant storage limit exceeded
 )
+
+// legacyHints supplies the per-code actionable hint string for the legacy
+// (exitCode, errType, hint) tuple returned by ClassifyLarkError. Hint
+// composition is not yet centralized in errclass (the canonical
+// PermissionHint lives there but the long-form per-code hints below are
+// still wire-stable strings), so this small lookup remains here. Codes
+// absent from this map fall back to "".
+var legacyHints = map[int]string{
+	LarkErrTokenMissing: "run: lark-cli auth login to re-authorize",
+	LarkErrTokenBadFmt:  "run: lark-cli auth login to re-authorize",
+	LarkErrTokenInvalid: "run: lark-cli auth login to re-authorize",
+	LarkErrATInvalid:    "run: lark-cli auth login to re-authorize",
+	LarkErrTokenExpired: "run: lark-cli auth login to re-authorize",
+
+	LarkErrAppScopeNotEnabled:    "the app developer must apply for the required scope(s) at the developer console",
+	LarkErrTokenNoPermission:     "check the token's granted scopes; run `lark-cli auth login` to refresh if the scope was added after the token was issued",
+	LarkErrUserScopeInsufficient: "run `lark-cli auth login` to re-authorize the user with the updated scope set",
+	LarkErrUserNotAuthorized:     "run `lark-cli auth login` to re-authorize this user; if re-auth does not help, the operation may be blocked by external-chat or admin policy",
+
+	LarkErrAppCredInvalid:   "run `lark-cli config init` to set valid app_id and app_secret",
+	LarkErrTATInvalidSecret: "run `lark-cli config init` to set valid app_id and app_secret",
+	LarkErrAppNotInUse:      "ask the tenant admin to re-enable the app in the Lark admin console",
+	LarkErrAppUnauthorized:  "ask the tenant admin to check the app's install status in the Lark admin console",
+
+	LarkErrRateLimit:               "please try again later",
+	LarkErrDriveResourceContention: "please retry later and avoid concurrent duplicate requests",
+	LarkErrWikiLockContention:      "wiki write lock contention on this parent node; retry with exponential backoff or serialize sibling-node writes",
+	LarkErrDriveCrossTenantUnit:    "operate on source and target within the same tenant and region/unit",
+	LarkErrDriveCrossBrand:         "operate on source and target within the same brand environment",
+	LarkErrSheetsFloatImageInvalidDims: "check --width / --height / --offset-x / --offset-y: " +
+		"width/height must be >= 20 px; offsets must be >= 0 and less than the anchor cell's width/height",
+	LarkErrDrivePermApplyRateLimit:     "permission-apply quota reached: each user may request access on the same document at most 5 times per day; wait or ask the owner directly",
+	LarkErrDrivePermApplyNotApplicable: "this document does not accept a permission-apply request (common causes: the document is configured to disallow access requests, the caller already holds the permission, or the target type does not support apply); contact the owner directly",
+}
+
+// ClassifyLarkError maps a Lark API error code + message to the legacy
+// (exitCode, errType, hint) tuple consumed by the *ExitError path.
+//
+// Classification is sourced from errclass.LookupCodeMeta (the single source
+// of truth). exitCode follows legacyExitCode below, which differs from
+// ExitCodeForCategory in two preserved-legacy quirks: Authorization +
+// permission subtypes return ExitAPI (legacy treated "permission" as
+// exit 1), and Config returns ExitAuth (legacy bundled "check
+// app_id/secret" under exit 3). errType maps to a legacy short string;
+// unknown subtypes fall back to "api_error". Unknown codes classify as
+// (ExitAPI, "api_error", "").
+//
+// Deprecated: route Lark API responses through errclass.BuildAPIError,
+// which emits a typed *errs.XxxError with Category, Subtype, and
+// identity-aware extension fields populated at the source.
+func ClassifyLarkError(code int, msg string) (int, string, string) {
+	meta, ok := errclass.LookupCodeMeta(code)
+	if !ok {
+		return ExitAPI, "api_error", ""
+	}
+	exitCode := legacyExitCode(meta.Category, meta.Subtype)
+	errType := legacyErrType(meta.Category, meta.Subtype)
+	hint := legacyHints[code]
+	// IM ownership mismatch keeps its dynamic recovery hint.
+	if code == LarkErrOwnershipMismatch {
+		hint = buildOwnershipRecoveryHint()
+	}
+	return exitCode, errType, hint
+}
+
+// legacyExitCode maps (Category, Subtype) to the legacy *ExitError exit
+// code. It diverges from ExitCodeForCategory in two places to preserve the
+// historic wire:
+//
+//   - CategoryAuthorization with a "permission" subtype (missing_scope,
+//     app_scope_not_enabled, token_no_permission) → ExitAPI (1), not
+//     ExitAuth (3). Legacy considered permission failures a generic API
+//     refusal.
+//   - CategoryConfig → ExitAuth (3). Legacy bundled "check app_id/secret"
+//     under the auth bucket.
+func legacyExitCode(cat errs.Category, sub errs.Subtype) int {
+	switch cat {
+	case errs.CategoryAuthentication:
+		return ExitAuth
+	case errs.CategoryAuthorization:
+		switch sub {
+		case errs.SubtypeMissingScope,
+			errs.SubtypeUserUnauthorized,
+			errs.SubtypeAppScopeNotApplied,
+			errs.SubtypeTokenScopeInsufficient:
+			return ExitAPI
+		case errs.SubtypeAppUnavailable,
+			errs.SubtypeAppDisabled:
+			return ExitAuth
+		}
+		return ExitAPI
+	case errs.CategoryConfig:
+		return ExitAuth
+	}
+	return ExitAPI
+}
+
+// legacyErrType maps (Category, Subtype) to the legacy *ExitError errType
+// string (e.g. "permission", "rate_limit"). Subtypes outside the
+// historically-classified set fall back to "api_error", matching the prior
+// default-case behavior.
+func legacyErrType(cat errs.Category, sub errs.Subtype) string {
+	switch cat {
+	case errs.CategoryAuthentication:
+		return "auth"
+	case errs.CategoryAuthorization:
+		switch sub {
+		case errs.SubtypeMissingScope,
+			errs.SubtypeUserUnauthorized,
+			errs.SubtypeAppScopeNotApplied,
+			errs.SubtypeTokenScopeInsufficient:
+			return "permission"
+		case errs.SubtypeAppUnavailable,
+			errs.SubtypeAppDisabled:
+			return "app_status"
+		}
+		return "permission"
+	case errs.CategoryConfig:
+		switch sub {
+		case errs.SubtypeInvalidClient,
+			errs.SubtypeNotConfigured,
+			errs.SubtypeInvalidConfig:
+			return "config"
+		}
+		return "config"
+	case errs.CategoryAPI:
+		switch sub {
+		case errs.SubtypeRateLimit:
+			return "rate_limit"
+		case errs.SubtypeConflict:
+			return "conflict"
+		case errs.SubtypeCrossTenant:
+			return "cross_tenant"
+		case errs.SubtypeCrossBrand:
+			return "cross_brand"
+		case errs.SubtypeInvalidParameters:
+			return "invalid_parameters"
+		case errs.SubtypeOwnershipMismatch:
+			return "ownership_mismatch"
+		}
+		return "api_error"
+	}
+	return "api_error"
+}

internal/output/lark_errors_test.go

@@ -4,9 +4,93 @@
 package output
 
 import (
+	"strings"
 	"testing"
 )
 
+// TestClassifyLarkError_DriveCreateShortcutConstraints verifies known Drive shortcut errors map to actionable hints.
+func TestClassifyLarkError_DriveCreateShortcutConstraints(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name         string
+		code         int
+		wantExitCode int
+		wantType     string
+		wantHint     string
+	}{
+		{
+			name:         "resource contention",
+			code:         LarkErrDriveResourceContention,
+			wantExitCode: ExitAPI,
+			wantType:     "conflict",
+			wantHint:     "avoid concurrent duplicate requests",
+		},
+		{
+			name:         "cross tenant unit",
+			code:         LarkErrDriveCrossTenantUnit,
+			wantExitCode: ExitAPI,
+			wantType:     "cross_tenant",
+			wantHint:     "same tenant and region/unit",
+		},
+		{
+			name:         "cross brand",
+			code:         LarkErrDriveCrossBrand,
+			wantExitCode: ExitAPI,
+			wantType:     "cross_brand",
+			wantHint:     "same brand environment",
+		},
+		{
+			name:         "sheets float image invalid dims",
+			code:         LarkErrSheetsFloatImageInvalidDims,
+			wantExitCode: ExitAPI,
+			wantType:     "invalid_parameters",
+			wantHint:     "--width / --height / --offset-x / --offset-y",
+		},
+		{
+			name:         "drive permission apply rate limit",
+			code:         LarkErrDrivePermApplyRateLimit,
+			wantExitCode: ExitAPI,
+			wantType:     "rate_limit",
+			wantHint:     "5 times per day",
+		},
+		{
+			name:         "drive permission apply not applicable",
+			code:         LarkErrDrivePermApplyNotApplicable,
+			wantExitCode: ExitAPI,
+			wantType:     "invalid_parameters",
+			wantHint:     "does not accept a permission-apply request",
+		},
+		{
+			name:         "ownership mismatch",
+			code:         LarkErrOwnershipMismatch,
+			wantExitCode: ExitAPI,
+			wantType:     "ownership_mismatch",
+			wantHint:     "messages-resources-download",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			gotExitCode, gotType, gotHint := ClassifyLarkError(tt.code, "raw msg")
+			if gotExitCode != tt.wantExitCode {
+				t.Fatalf("exitCode=%d, want %d", gotExitCode, tt.wantExitCode)
+			}
+			if gotType != tt.wantType {
+				t.Fatalf("type=%q, want %q", gotType, tt.wantType)
+			}
+			if gotHint == "" {
+				t.Fatal("expected non-empty hint")
+			}
+			if !strings.Contains(gotHint, tt.wantHint) {
+				t.Fatalf("hint=%q, want substring %q", gotHint, tt.wantHint)
+			}
+		})
+	}
+}
+
 func TestMailSendErrorConstantsUseServiceScopedCodes(t *testing.T) {
 	t.Parallel()
 
@@ -32,3 +116,24 @@ func TestMailSendErrorConstantsUseServiceScopedCodes(t *testing.T) {
 		})
 	}
 }
+
+// TestClassifyLarkError_WikiLockContention verifies the wiki write-lock
+// contention error (131009) maps to an actionable retry hint instead of
+// a generic "api_error". Surfaces during concurrent wiki +node-create
+// against the same parent (see larksuite/cli#1012).
+func TestClassifyLarkError_WikiLockContention(t *testing.T) {
+	t.Parallel()
+	gotExitCode, gotType, gotHint := ClassifyLarkError(LarkErrWikiLockContention, "raw msg")
+	if gotExitCode != ExitAPI {
+		t.Fatalf("exitCode=%d, want %d", gotExitCode, ExitAPI)
+	}
+	if gotType != "conflict" {
+		t.Fatalf("type=%q, want %q", gotType, "conflict")
+	}
+	if !strings.Contains(gotHint, "wiki write lock") {
+		t.Fatalf("hint=%q, want substring %q", gotHint, "wiki write lock")
+	}
+	if !strings.Contains(gotHint, "backoff") {
+		t.Fatalf("hint=%q, want substring %q", gotHint, "backoff")
+	}
+}

internal/output/ownership_recovery.go

@@ -0,0 +1,8 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package output
+
+func buildOwnershipRecoveryHint() string {
+	return "This resource belongs to another user — you can't send it directly. Download it with 'im +messages-resources-download --output <output_path>', then send the local file via 'im +send..'. For post or interactive, upload first and use the new image_key or file_key."
+}

internal/output/ownership_recovery_test.go

@@ -0,0 +1,71 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package output
+
+import (
+	"strings"
+	"testing"
+)
+
+func checkOwnershipRecoveryHint(t *testing.T, hint string) {
+	t.Helper()
+
+	for _, part := range []string{
+		"im +messages-resources-download",
+		"--output <output_path>",
+		"This resource belongs to another user",
+		"download",
+		"send",
+		"image_key",
+		"file_key",
+	} {
+		if !strings.Contains(hint, part) {
+			t.Fatalf("hint %q missing %q", hint, part)
+		}
+	}
+	if len(hint) > 360 {
+		t.Fatalf("hint is too long: %d bytes", len(hint))
+	}
+	for _, noisy := range []string{
+		"Step 1",
+		"Step 2",
+		"Step 3",
+		"--message-id <message_id>",
+		"--file-key <resource_key>",
+		"--type <image|file>",
+		"identity",
+		"do not keep retrying alternative download methods",
+		"POST /open-apis",
+	} {
+		if strings.Contains(hint, noisy) {
+			t.Fatalf("hint %q should not contain noisy phrase %q", hint, noisy)
+		}
+	}
+}
+
+func TestBuildOwnershipRecoveryHint(t *testing.T) {
+	checkOwnershipRecoveryHint(t, buildOwnershipRecoveryHint())
+}
+
+func TestErrAPI_OwnershipMismatch(t *testing.T) {
+	upstreamMessage := "Bot or User is NOT the owner of the uat resource."
+	err := ErrAPI(LarkErrOwnershipMismatch, upstreamMessage, map[string]any{"log_id": "test-log"})
+
+	if err.Code != ExitAPI {
+		t.Fatalf("exit code = %d, want %d", err.Code, ExitAPI)
+	}
+	if err.Detail == nil {
+		t.Fatal("expected detail")
+	}
+	if err.Detail.Type != "ownership_mismatch" {
+		t.Fatalf("type = %q, want %q", err.Detail.Type, "ownership_mismatch")
+	}
+	if got, want := err.Detail.Message, upstreamMessage; got != want {
+		t.Fatalf("message = %q, want %q", got, want)
+	}
+	checkOwnershipRecoveryHint(t, err.Detail.Hint)
+	if err.Detail.Detail == nil {
+		t.Fatal("expected upstream detail to be preserved")
+	}
+}

internal/output/print.go

@@ -27,9 +27,9 @@ func PrintJson(w io.Writer, data interface{}) {
 // Only modifies map[string]interface{} values that have an "ok" key
 // (e.g. doctor, auth, config commands that build map envelopes directly).
 //
-// Struct-based envelopes (Envelope, the typed error envelope) are NOT handled
-// here — callers must set the Notice field explicitly via GetNotice().
-// See: shortcuts/common/runner.go Out(), output/errors.go WriteTypedErrorEnvelope().
+// Struct-based envelopes (Envelope, ErrorEnvelope) are NOT handled here —
+// callers must set the Notice field explicitly via GetNotice().
+// See: shortcuts/common/runner.go Out(), output/errors.go WriteErrorEnvelope().
 func injectNotice(data interface{}) {
 	if PendingNotice == nil {
 		return