fix(slides): align SVGlide native role classifier

shortcuts/slides/shortcuts.go

@@ -9,6 +9,7 @@ import "github.com/larksuite/cli/shortcuts/common"
 func Shortcuts() []common.Shortcut {
 	return []common.Shortcut{
 		SlidesCreate,
+		SlidesCreateSVG,
 		SlidesMediaUpload,
 		SlidesReplaceSlide,
 	}

shortcuts/slides/slides_create.go

@@ -121,35 +121,19 @@ var SlidesCreate = common.Shortcut{
 	},
 	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
 		title := effectiveTitle(runtime.Str("title"))
-		content := buildPresentationXML(title)
 		slidesStr := runtime.Str("slides")
 
-		// Step 1: Create presentation
-		data, err := runtime.CallAPI(
-			"POST",
-			"/open-apis/slides_ai/v1/xml_presentations",
-			nil,
-			map[string]interface{}{
-				"xml_presentation": map[string]interface{}{
-					"content": content,
-				},
-			},
-		)
+		presentationID, revisionID, err := createEmptyPresentation(runtime, title)
 		if err != nil {
 			return err
 		}
 
-		presentationID := common.GetString(data, "xml_presentation_id")
-		if presentationID == "" {
-			return output.Errorf(output.ExitAPI, "api_error", "slides create returned no xml_presentation_id")
-		}
-
 		result := map[string]interface{}{
 			"xml_presentation_id": presentationID,
 			"title":               title,
 		}
-		if revisionID := common.GetFloat(data, "revision_id"); revisionID > 0 {
-			result["revision_id"] = int(revisionID)
+		if revisionID > 0 {
+			result["revision_id"] = revisionID
 		}
 
 		// Step 2: Add slides if provided
@@ -198,6 +182,9 @@ var SlidesCreate = common.Shortcut{
 					if sid := common.GetString(slideData, "slide_id"); sid != "" {
 						slideIDs = append(slideIDs, sid)
 					}
+					if latest := common.GetFloat(slideData, "revision_id"); latest > 0 {
+						result["revision_id"] = int(latest)
+					}
 				}
 
 				result["slide_ids"] = slideIDs
@@ -205,34 +192,7 @@ var SlidesCreate = common.Shortcut{
 			}
 		}
 
-		// Fetch presentation URL via drive meta (best-effort)
-		if metaData, err := runtime.CallAPI(
-			"POST",
-			"/open-apis/drive/v1/metas/batch_query",
-			nil,
-			map[string]interface{}{
-				"request_docs": []map[string]interface{}{
-					{
-						"doc_token": presentationID,
-						"doc_type":  "slides",
-					},
-				},
-				"with_url": true,
-			},
-		); err == nil {
-			metas := common.GetSlice(metaData, "metas")
-			if len(metas) > 0 {
-				if meta, ok := metas[0].(map[string]interface{}); ok {
-					if url := common.GetString(meta, "url"); url != "" {
-						result["url"] = url
-					}
-				}
-			}
-		}
-
-		if grant := common.AutoGrantCurrentUserDrivePermission(runtime, presentationID, "slides"); grant != nil {
-			result["permission_grant"] = grant
-		}
+		fillPresentationResult(runtime, presentationID, result)
 
 		runtime.Out(result, nil)
 		return nil
@@ -259,6 +219,41 @@ func buildPresentationXML(title string) string {
 	)
 }
 
+func createEmptyPresentation(runtime *common.RuntimeContext, title string) (string, int, error) {
+	data, err := runtime.CallAPI(
+		"POST",
+		"/open-apis/slides_ai/v1/xml_presentations",
+		nil,
+		map[string]interface{}{
+			"xml_presentation": map[string]interface{}{
+				"content": buildPresentationXML(title),
+			},
+		},
+	)
+	if err != nil {
+		return "", 0, err
+	}
+
+	presentationID := common.GetString(data, "xml_presentation_id")
+	if presentationID == "" {
+		return "", 0, output.Errorf(output.ExitAPI, "api_error", "slides create returned no xml_presentation_id")
+	}
+	revisionID := 0
+	if rev := common.GetFloat(data, "revision_id"); rev > 0 {
+		revisionID = int(rev)
+	}
+	return presentationID, revisionID, nil
+}
+
+func fillPresentationResult(runtime *common.RuntimeContext, presentationID string, result map[string]interface{}) {
+	if url, err := common.FetchDriveMetaURL(runtime, presentationID, "slides"); err == nil && url != "" {
+		result["url"] = url
+	}
+	if grant := common.AutoGrantCurrentUserDrivePermission(runtime, presentationID, "slides"); grant != nil {
+		result["permission_grant"] = grant
+	}
+}
+
 // uploadSlidesPlaceholders uploads each unique placeholder path against the
 // presentation and returns the path→file_token map. The second return value is
 // the number of files successfully uploaded before any error, so callers can

shortcuts/slides/slides_create_svg.go

@@ -0,0 +1,189 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package slides
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/larksuite/cli/internal/output"
+	"github.com/larksuite/cli/internal/validate"
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+// SlidesCreateSVG creates a new Lark Slides presentation from one or more
+// SVGlide SVG files by adding each page through the existing XML slide route.
+var SlidesCreateSVG = common.Shortcut{
+	Service:     "slides",
+	Command:     "+create-svg",
+	Description: "Create a Lark Slides presentation from SVG",
+	Risk:        "write",
+	AuthTypes:   []string{"user", "bot"},
+	Scopes: []string{
+		"slides:presentation:create",
+		"slides:presentation:write_only",
+		"docs:document.media:upload",
+	},
+	Flags: []common.Flag{
+		{Name: "title", Desc: "presentation title"},
+		{
+			Name:     "file",
+			Type:     "string_array",
+			Required: true,
+			Desc:     "SVG file path; repeat for multiple pages",
+		},
+		{Name: "assets", Desc: "optional assets.json path mapping SVG @path placeholders to uploaded file tokens"},
+	},
+	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		if err := validateSVGFileInputs(runtime, runtime.StrArray("file")); err != nil {
+			return err
+		}
+		return validateSVGAssetsPath(runtime, runtime.Str("assets"))
+	},
+	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
+		title := effectiveTitle(runtime.Str("title"))
+		filePaths := runtime.StrArray("file")
+		svgs, err := readSVGFiles(runtime, filePaths)
+		if err != nil {
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		assets, err := parseSVGAssets(runtime, runtime.Str("assets"))
+		if err != nil {
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		classified, err := classifySVGlideSVGPages(filePaths, svgs)
+		if err != nil {
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		rewriteResult, uploadPaths, err := dryRunRewriteClassifiedSVGPages(classified, assets)
+		if err != nil {
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		pages := rewriteResult.Pages
+
+		dry := common.NewDryRunAPI()
+		total := 1 + len(uploadPaths) + len(pages)
+		descSuffix := ""
+		if len(uploadPaths) > 0 {
+			descSuffix = fmt.Sprintf(" + upload %d image(s)", len(uploadPaths))
+		}
+		dry.Desc(fmt.Sprintf("Create presentation from %d SVG page(s)%s", len(pages), descSuffix)).
+			POST("/open-apis/slides_ai/v1/xml_presentations").
+			Desc(fmt.Sprintf("[1/%d] Create presentation", total)).
+			Body(map[string]interface{}{
+				"xml_presentation": map[string]interface{}{"content": buildPresentationXML(title)},
+			})
+
+		for i, path := range uploadPaths {
+			appendSlidesUploadDryRun(dry, path, "<xml_presentation_id>", i+2)
+		}
+
+		slideStepStart := 2 + len(uploadPaths)
+		for i, page := range pages {
+			content, injectErr := injectSVGTransportAssetMetadata(page.Content, page.Tokens)
+			if injectErr != nil {
+				return common.NewDryRunAPI().Set("error", injectErr.Error())
+			}
+			dry.POST("/open-apis/slides_ai/v1/xml_presentations/<xml_presentation_id>/slide").
+				Desc(fmt.Sprintf("[%d/%d] Add SVG page %d", slideStepStart+i, total, i+1)).
+				Params(map[string]interface{}{"revision_id": -1}).
+				Body(buildCreateSVGBody(content))
+		}
+
+		if runtime.IsBot() {
+			dry.Desc("After creation succeeds in bot mode, the CLI will also try to grant the current CLI user full_access (可管理权限) on the new presentation.")
+		}
+		return dry.Set("title", title)
+	},
+	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		title := effectiveTitle(runtime.Str("title"))
+		filePaths := runtime.StrArray("file")
+		svgs, err := readSVGFiles(runtime, filePaths)
+		if err != nil {
+			return err
+		}
+		assets, err := parseSVGAssets(runtime, runtime.Str("assets"))
+		if err != nil {
+			return err
+		}
+		classified, err := classifySVGlideSVGPages(filePaths, svgs)
+		if err != nil {
+			return err
+		}
+		if hasFallbackPages(classified) {
+			if err := svgFallbackRasterizer.CheckAvailable(ctx); err != nil {
+				return err
+			}
+		}
+		renderedFallbacks, err := renderSVGFallbackPages(ctx, classified, svgFallbackRasterizer)
+		if err != nil {
+			return err
+		}
+		defer cleanupRenderedSVGFallbacks(renderedFallbacks)
+
+		presentationID, revisionID, err := createEmptyPresentation(runtime, title)
+		if err != nil {
+			return err
+		}
+		result := map[string]interface{}{
+			"xml_presentation_id": presentationID,
+			"title":               title,
+		}
+		if revisionID > 0 {
+			result["revision_id"] = revisionID
+		}
+
+		rewriteResult, err := rewriteClassifiedSVGPages(runtime, presentationID, classified, assets, renderedFallbacks)
+		if err != nil {
+			return output.Errorf(output.ExitAPI, "api_error",
+				"image upload failed: %v (presentation %s was created; %d image(s) uploaded before failure)",
+				err, presentationID, rewriteResult.ImagesUploaded)
+		}
+		if rewriteResult.ImagesUploaded > 0 {
+			result["images_uploaded"] = rewriteResult.ImagesUploaded
+		}
+		if rewriteResult.FallbackPages > 0 {
+			result["fallback_pages"] = rewriteResult.FallbackPages
+		}
+		pages := rewriteResult.Pages
+
+		slideURL := fmt.Sprintf(
+			"/open-apis/slides_ai/v1/xml_presentations/%s/slide",
+			validate.EncodePathSegment(presentationID),
+		)
+		var slideIDs []string
+		for i, page := range pages {
+			content, err := injectSVGTransportAssetMetadata(page.Content, page.Tokens)
+			if err != nil {
+				return output.Errorf(output.ExitValidation, "validation",
+					"page %d/%d failed before API call: %v (presentation %s was created; %d slide(s) added; slide_ids=%s)",
+					i+1, len(pages), err, presentationID, len(slideIDs), strings.Join(slideIDs, ","))
+			}
+			slideData, err := runtime.CallAPI(
+				"POST",
+				slideURL,
+				map[string]interface{}{"revision_id": -1},
+				buildCreateSVGBody(content),
+			)
+			if err != nil {
+				return output.Errorf(output.ExitAPI, "api_error",
+					"page %d/%d failed: %v%s (presentation %s was created; %d slide(s) added; slide_ids=%s)",
+					i+1, len(pages), err, formatSVGlideErrorSuffix(err), presentationID, len(slideIDs), strings.Join(slideIDs, ","))
+			}
+			if sid := common.GetString(slideData, "slide_id"); sid != "" {
+				slideIDs = append(slideIDs, sid)
+			}
+			if latest := common.GetFloat(slideData, "revision_id"); latest > 0 {
+				result["revision_id"] = int(latest)
+			}
+		}
+
+		result["slide_ids"] = slideIDs
+		result["slides_added"] = len(slideIDs)
+		fillPresentationResult(runtime, presentationID, result)
+		runtime.Out(result, nil)
+		return nil
+	},
+}

shortcuts/slides/slides_create_svg_test.go

@@ -0,0 +1,649 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package slides
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/spf13/cobra"
+
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/httpmock"
+)
+
+const testSVGlidePage1 = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><rect slide:role="shape" x="80" y="80" width="320" height="180"/></svg>`
+const testSVGlidePage2 = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><foreignObject slide:role="shape" slide:shape-type="text" x="80" y="80" width="320" height="80"><p xmlns="http://www.w3.org/1999/xhtml">second</p></foreignObject></svg>`
+
+func TestSlidesCreateSVGMissingFileFlag(t *testing.T) {
+	t.Parallel()
+
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--title", "missing file",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected missing --file error")
+	}
+	if !strings.Contains(err.Error(), "file") {
+		t.Fatalf("err = %v, want mention of file", err)
+	}
+}
+
+func TestSlidesCreateSVGFileMissing(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "missing.svg",
+		"--title", "missing svg",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected validation error for missing SVG")
+	}
+	if !strings.Contains(err.Error(), "missing.svg") {
+		t.Fatalf("err = %v, want mention of missing.svg", err)
+	}
+}
+
+func TestSlidesCreateSVGEmptyFile(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	if err := os.WriteFile("empty.svg", nil, 0o644); err != nil {
+		t.Fatalf("write empty.svg: %v", err)
+	}
+
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "empty.svg",
+		"--title", "empty svg",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected validation error for empty SVG")
+	}
+	if !strings.Contains(err.Error(), "empty.svg") || !strings.Contains(err.Error(), "empty") {
+		t.Fatalf("err = %v, want empty.svg empty-file message", err)
+	}
+}
+
+func TestSlidesCreateSVGExecuteCreatesSlidesInFileOrder(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	if err := os.WriteFile("page1.svg", []byte(testSVGlidePage1), 0o644); err != nil {
+		t.Fatalf("write page1.svg: %v", err)
+	}
+	if err := os.WriteFile("page2.svg", []byte(testSVGlidePage2), 0o644); err != nil {
+		t.Fatalf("write page2.svg: %v", err)
+	}
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"xml_presentation_id": "pres_svg",
+				"revision_id":         1,
+			},
+		},
+	})
+	slideStub1 := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_svg/slide",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"slide_id": "slide_1", "revision_id": 2}},
+	}
+	slideStub2 := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_svg/slide",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"slide_id": "slide_2", "revision_id": 3}},
+	}
+	reg.Register(slideStub1)
+	reg.Register(slideStub2)
+	registerBatchQueryStub(reg, "pres_svg", "https://x.feishu.cn/slides/pres_svg")
+
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "page1.svg",
+		"--file", "page2.svg",
+		"--title", "SVG Deck",
+		"--as", "user",
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	data := decodeSlidesCreateEnvelope(t, stdout)
+	if data["xml_presentation_id"] != "pres_svg" {
+		t.Fatalf("xml_presentation_id = %v, want pres_svg", data["xml_presentation_id"])
+	}
+	if data["slides_added"] != float64(2) {
+		t.Fatalf("slides_added = %v, want 2", data["slides_added"])
+	}
+	if data["revision_id"] != float64(3) {
+		t.Fatalf("revision_id = %v, want latest revision 3", data["revision_id"])
+	}
+	slideIDs, ok := data["slide_ids"].([]interface{})
+	if !ok || len(slideIDs) != 2 || slideIDs[0] != "slide_1" || slideIDs[1] != "slide_2" {
+		t.Fatalf("slide_ids = %v, want [slide_1 slide_2]", data["slide_ids"])
+	}
+
+	assertSlideCreateBodyContains(t, slideStub1, `slide:contract-version="svglide-authoring-contract/v1"`)
+	assertSlideCreateBodyContains(t, slideStub1, `<rect slide:role="shape" x="80" y="80" width="320" height="180"/>`)
+	assertSlideCreateBodyContains(t, slideStub2, `slide:contract-version="svglide-authoring-contract/v1"`)
+	assertSlideCreateBodyContains(t, slideStub2, `<foreignObject slide:role="shape" slide:shape-type="text" x="80" y="80" width="320" height="80">`)
+}
+
+func TestSlidesCreateSVGPartialFailureIncludesRecoveryContext(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	if err := os.WriteFile("page1.svg", []byte(testSVGlidePage1), 0o644); err != nil {
+		t.Fatalf("write page1.svg: %v", err)
+	}
+	if err := os.WriteFile("page2.svg", []byte(testSVGlidePage2), 0o644); err != nil {
+		t.Fatalf("write page2.svg: %v", err)
+	}
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"xml_presentation_id": "pres_svg_partial",
+				"revision_id":         1,
+			},
+		},
+	})
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_svg_partial/slide",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"slide_id": "slide_ok", "revision_id": 2}},
+	})
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_svg_partial/slide",
+		Body: map[string]interface{}{
+			"code": 400,
+			"msg":  "invalid svg",
+		},
+	})
+
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "page1.svg",
+		"--file", "page2.svg",
+		"--title", "partial svg",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected slide create failure")
+	}
+	errMsg := err.Error()
+	for _, want := range []string{"pres_svg_partial", "page 2/2", "1 slide(s) added", "slide_ok"} {
+		if !strings.Contains(errMsg, want) {
+			t.Fatalf("err = %v, want mention of %q", err, want)
+		}
+	}
+}
+
+func TestSlidesCreateSVGFailureExtractsSVGlideMarker(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	if err := os.WriteFile("page.svg", []byte(testSVGlidePage1), 0o644); err != nil {
+		t.Fatalf("write page.svg: %v", err)
+	}
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"xml_presentation_id": "pres_marker", "revision_id": 1}},
+	})
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_marker/slide",
+		Body: map[string]interface{}{
+			"code": 400,
+			"msg":  `SVGLIDE_ERROR_JSON:{"type":"svg_validation_error","page_index":0,"tag_name":"foreignObject","hint":"Use supported elements"}`,
+		},
+	})
+
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "page.svg",
+		"--title", "marker",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected marker failure")
+	}
+	errMsg := err.Error()
+	for _, want := range []string{"svglide_error=", "svg_validation_error", "foreignObject", "Use supported elements"} {
+		if !strings.Contains(errMsg, want) {
+			t.Fatalf("err = %v, want marker field %q", err, want)
+		}
+	}
+}
+
+func TestSlidesCreateSVGAssetsReplaceImageAndInjectMetadata(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	svg := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><image slide:role="image" xlink:href='@./hero.png' x="0" y="0" width="320" height="180"/></svg>`
+	if err := os.WriteFile("page.svg", []byte(svg), 0o644); err != nil {
+		t.Fatalf("write page.svg: %v", err)
+	}
+	if err := os.WriteFile("assets.json", []byte(`{"@./hero.png":"boxcn_asset"}`), 0o644); err != nil {
+		t.Fatalf("write assets.json: %v", err)
+	}
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"xml_presentation_id": "pres_asset", "revision_id": 1}},
+	})
+	slideStub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_asset/slide",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"slide_id": "slide_asset", "revision_id": 2}},
+	}
+	reg.Register(slideStub)
+	registerBatchQueryStub(reg, "pres_asset", "https://x.feishu.cn/slides/pres_asset")
+
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "page.svg",
+		"--assets", "assets.json",
+		"--title", "assets",
+		"--as", "user",
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	var body map[string]interface{}
+	if err := json.Unmarshal(slideStub.CapturedBody, &body); err != nil {
+		t.Fatalf("decode slide body: %v", err)
+	}
+	content := body["slide"].(map[string]interface{})["content"].(string)
+	if strings.Contains(content, "@./hero.png") || strings.Contains(content, "xlink:href") {
+		t.Fatalf("content should canonicalize asset placeholder: %s", content)
+	}
+	for _, want := range []string{`href="boxcn_asset"`, `<metadata data-svglide-assets="true">`, `<img src="boxcn_asset" />`} {
+		if !strings.Contains(content, want) {
+			t.Fatalf("content missing %s: %s", want, content)
+		}
+	}
+	if _, ok := decodeSlidesCreateEnvelope(t, stdout)["images_uploaded"]; ok {
+		t.Fatalf("--assets token mapping should not upload local images")
+	}
+}
+
+func TestSlidesCreateSVGNestedImageAssetsReplaceAndInjectMetadata(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	svg := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><g transform="translate(10 20)"><image slide:role="image" xlink:href='@./hero.png' x="0" y="0" width="320" height="180"/></g></svg>`
+	if err := os.WriteFile("page.svg", []byte(svg), 0o644); err != nil {
+		t.Fatalf("write page.svg: %v", err)
+	}
+	if err := os.WriteFile("assets.json", []byte(`{"@./hero.png":"boxcn_asset"}`), 0o644); err != nil {
+		t.Fatalf("write assets.json: %v", err)
+	}
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"xml_presentation_id": "pres_nested_asset", "revision_id": 1}},
+	})
+	slideStub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_nested_asset/slide",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"slide_id": "slide_nested_asset", "revision_id": 2}},
+	}
+	reg.Register(slideStub)
+	registerBatchQueryStub(reg, "pres_nested_asset", "https://x.feishu.cn/slides/pres_nested_asset")
+
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "page.svg",
+		"--assets", "assets.json",
+		"--title", "nested assets",
+		"--as", "user",
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	var body map[string]interface{}
+	if err := json.Unmarshal(slideStub.CapturedBody, &body); err != nil {
+		t.Fatalf("decode slide body: %v", err)
+	}
+	content := body["slide"].(map[string]interface{})["content"].(string)
+	for _, want := range []string{
+		`href="boxcn_asset"`,
+		`<metadata data-svglide-assets="true">`,
+		`<img src="boxcn_asset" />`,
+		`<g transform="translate(10 20)">`,
+	} {
+		if !strings.Contains(content, want) {
+			t.Fatalf("content missing %s: %s", want, content)
+		}
+	}
+	for _, notWant := range []string{`xlink:href`, `@./hero.png`} {
+		if strings.Contains(content, notWant) {
+			t.Fatalf("content should not contain %s: %s", notWant, content)
+		}
+	}
+	if _, ok := decodeSlidesCreateEnvelope(t, stdout)["images_uploaded"]; ok {
+		t.Fatalf("--assets token mapping should not upload local images")
+	}
+}
+
+func TestSlidesCreateSVGUploadsLocalImagesAndInjectsMetadata(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	svg := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><image slide:role="image" href="@hero.png" x="0" y="0" width="320" height="180"/></svg>`
+	if err := os.WriteFile("page.svg", []byte(svg), 0o644); err != nil {
+		t.Fatalf("write page.svg: %v", err)
+	}
+	if err := os.WriteFile("hero.png", []byte("png"), 0o644); err != nil {
+		t.Fatalf("write hero.png: %v", err)
+	}
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"xml_presentation_id": "pres_upload", "revision_id": 1}},
+	})
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/drive/v1/medias/upload_all",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"file_token": "boxcn_uploaded"}},
+	})
+	slideStub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_upload/slide",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"slide_id": "slide_upload", "revision_id": 2}},
+	}
+	reg.Register(slideStub)
+	registerBatchQueryStub(reg, "pres_upload", "https://x.feishu.cn/slides/pres_upload")
+
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "page.svg",
+		"--title", "upload",
+		"--as", "user",
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	data := decodeSlidesCreateEnvelope(t, stdout)
+	if data["images_uploaded"] != float64(1) {
+		t.Fatalf("images_uploaded = %v, want 1", data["images_uploaded"])
+	}
+	var body map[string]interface{}
+	if err := json.Unmarshal(slideStub.CapturedBody, &body); err != nil {
+		t.Fatalf("decode slide body: %v", err)
+	}
+	content := body["slide"].(map[string]interface{})["content"].(string)
+	for _, want := range []string{`href="boxcn_uploaded"`, `<img src="boxcn_uploaded" />`} {
+		if !strings.Contains(content, want) {
+			t.Fatalf("content missing %s: %s", want, content)
+		}
+	}
+}
+
+func TestSlidesCreateSVGFallbackRendersUploadsAndAddsImageOnlySVG(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	svg := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><text x="80" y="120">render me</text></svg>`
+	if err := os.WriteFile("fallback.svg", []byte(svg), 0o644); err != nil {
+		t.Fatalf("write fallback.svg: %v", err)
+	}
+
+	fake := &fakeSVGFallbackRasterizer{pngPath: "fallback.png", pngBytes: []byte("png-bytes")}
+	restore := setTestSVGFallbackRasterizer(fake)
+	defer restore()
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"xml_presentation_id": "pres_fallback", "revision_id": 1}},
+	})
+	uploadStub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/drive/v1/medias/upload_all",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"file_token": "boxcn_fallback"}},
+	}
+	reg.Register(uploadStub)
+	slideStub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_fallback/slide",
+		Body:   map[string]interface{}{"code": 0, "data": map[string]interface{}{"slide_id": "slide_fallback", "revision_id": 2}},
+	}
+	reg.Register(slideStub)
+	registerBatchQueryStub(reg, "pres_fallback", "https://x.feishu.cn/slides/pres_fallback")
+
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "fallback.svg",
+		"--title", "fallback",
+		"--as", "user",
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if len(fake.calls) != 1 || fake.calls[0] != "fallback.svg" {
+		t.Fatalf("rasterizer calls = %v, want [fallback.svg]", fake.calls)
+	}
+	data := decodeSlidesCreateEnvelope(t, stdout)
+	if data["fallback_pages"] != float64(1) {
+		t.Fatalf("fallback_pages = %v, want 1", data["fallback_pages"])
+	}
+	if data["images_uploaded"] != float64(1) {
+		t.Fatalf("images_uploaded = %v, want 1", data["images_uploaded"])
+	}
+
+	var body map[string]interface{}
+	if err := json.Unmarshal(slideStub.CapturedBody, &body); err != nil {
+		t.Fatalf("decode slide body: %v", err)
+	}
+	content := body["slide"].(map[string]interface{})["content"].(string)
+	for _, want := range []string{
+		`slide:contract-version="svglide-authoring-contract/v1"`,
+		`<image slide:role="image" href="boxcn_fallback" x="0" y="0" width="1280" height="720" preserveAspectRatio="none"/>`,
+		`<metadata data-svglide-assets="true"><img src="boxcn_fallback" /></metadata>`,
+	} {
+		if !strings.Contains(content, want) {
+			t.Fatalf("fallback slide content missing %s: %s", want, content)
+		}
+	}
+	if strings.Contains(content, "<text") {
+		t.Fatalf("fallback slide content should not contain original text node: %s", content)
+	}
+}
+
+func TestSlidesCreateSVGRejectsUnsafeBeforePresentationCreate(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	svg := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><script>alert(1)</script></svg>`
+	if err := os.WriteFile("unsafe.svg", []byte(svg), 0o644); err != nil {
+		t.Fatalf("write unsafe.svg: %v", err)
+	}
+
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "unsafe.svg",
+		"--title", "unsafe",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected preflight reject")
+	}
+	for _, want := range []string{"disallowed_script", "unsafe.svg"} {
+		if !strings.Contains(err.Error(), want) {
+			t.Fatalf("err = %v, want %q", err, want)
+		}
+	}
+}
+
+func TestSlidesCreateSVGRendererUnavailableBeforePresentationCreate(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	svg := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><text x="80" y="120">needs fallback</text></svg>`
+	if err := os.WriteFile("fallback.svg", []byte(svg), 0o644); err != nil {
+		t.Fatalf("write fallback.svg: %v", err)
+	}
+
+	fake := &fakeSVGFallbackRasterizer{
+		availableErr: newSVGlideDiagnosticsError("renderer unavailable", []SVGlideDiagnostic{{
+			Code:     svgDiagRendererUnavailable,
+			Severity: svgDiagSeverityError,
+			Path:     "fallback.svg",
+			Message:  "renderer missing",
+		}}),
+	}
+	restore := setTestSVGFallbackRasterizer(fake)
+	defer restore()
+
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "fallback.svg",
+		"--title", "renderer unavailable",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected renderer unavailable error")
+	}
+	if !strings.Contains(err.Error(), svgDiagRendererUnavailable) {
+		t.Fatalf("err = %v, want renderer_unavailable", err)
+	}
+	if len(fake.calls) != 0 {
+		t.Fatalf("rasterizer should not render when availability check fails, calls=%v", fake.calls)
+	}
+	if fake.checkCalls != 1 {
+		t.Fatalf("renderer availability checks = %d, want 1", fake.checkCalls)
+	}
+}
+
+func TestSlidesCreateSVGRasterFailureBeforePresentationCreate(t *testing.T) {
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+	svg := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><text x="80" y="120">needs fallback</text></svg>`
+	if err := os.WriteFile("fallback.svg", []byte(svg), 0o644); err != nil {
+		t.Fatalf("write fallback.svg: %v", err)
+	}
+
+	fake := &fakeSVGFallbackRasterizer{
+		renderErr: newSVGlideDiagnosticsError("render failed", []SVGlideDiagnostic{{
+			Code:     svgDiagRendererFailed,
+			Severity: svgDiagSeverityError,
+			Path:     "fallback.svg",
+			Message:  "render failed",
+		}}),
+	}
+	restore := setTestSVGFallbackRasterizer(fake)
+	defer restore()
+
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	err := runSlidesCreateSVGShortcut(t, f, stdout, []string{
+		"+create-svg",
+		"--file", "fallback.svg",
+		"--title", "render failure",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected raster failure error")
+	}
+	if !strings.Contains(err.Error(), svgDiagRendererFailed) {
+		t.Fatalf("err = %v, want renderer_failed", err)
+	}
+	if len(fake.calls) != 1 {
+		t.Fatalf("rasterizer calls = %v, want one render attempt", fake.calls)
+	}
+}
+
+type fakeSVGFallbackRasterizer struct {
+	availableErr error
+	renderErr    error
+	pngPath      string
+	pngBytes     []byte
+	checkCalls   int
+	calls        []string
+}
+
+func (f *fakeSVGFallbackRasterizer) CheckAvailable(context.Context) error {
+	f.checkCalls++
+	return f.availableErr
+}
+
+func (f *fakeSVGFallbackRasterizer) Rasterize(_ context.Context, svgPath string) (string, int64, error) {
+	f.calls = append(f.calls, svgPath)
+	if f.renderErr != nil {
+		return "", 0, f.renderErr
+	}
+	if f.pngPath == "" {
+		f.pngPath = "fallback.png"
+	}
+	if len(f.pngBytes) == 0 {
+		f.pngBytes = []byte("png")
+	}
+	if err := os.WriteFile(f.pngPath, f.pngBytes, 0o644); err != nil {
+		return "", 0, err
+	}
+	return f.pngPath, int64(len(f.pngBytes)), nil
+}
+
+func setTestSVGFallbackRasterizer(r svgRasterizer) func() {
+	old := svgFallbackRasterizer
+	svgFallbackRasterizer = r
+	return func() {
+		svgFallbackRasterizer = old
+	}
+}
+
+func runSlidesCreateSVGShortcut(t *testing.T, f *cmdutil.Factory, stdout *bytes.Buffer, args []string) error {
+	t.Helper()
+	parent := &cobra.Command{Use: "slides"}
+	SlidesCreateSVG.Mount(parent, f)
+	parent.SetArgs(args)
+	parent.SilenceErrors = true
+	parent.SilenceUsage = true
+	if stdout != nil {
+		stdout.Reset()
+	}
+	return parent.Execute()
+}
+
+func assertSlideCreateBodyContains(t *testing.T, stub *httpmock.Stub, want string) {
+	t.Helper()
+	var body map[string]interface{}
+	if err := json.Unmarshal(stub.CapturedBody, &body); err != nil {
+		t.Fatalf("decode slide body: %v\nraw=%s", err, string(stub.CapturedBody))
+	}
+	slide, _ := body["slide"].(map[string]interface{})
+	content, _ := slide["content"].(string)
+	if !strings.Contains(content, want) {
+		t.Fatalf("slide content = %s\nwant to contain %s", content, want)
+	}
+}

shortcuts/slides/svg_helpers_test.go

@@ -0,0 +1,513 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package slides
+
+import (
+	"context"
+	"errors"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestExtractSVGImagePlaceholderPaths(t *testing.T) {
+	t.Parallel()
+
+	svgs := []string{
+		`<svg><image slide:role="image" href="@./hero.png"/><a href="@./link.png"/></svg>`,
+		`<svg><image xlink:href='@./hero.png'/><image href = "@./other.png"/></svg>`,
+	}
+	got := extractSVGImagePlaceholderPaths(svgs, map[string]string{"@./other.png": "boxcn_other"})
+	want := []string{"./hero.png"}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("got %v, want %v", got, want)
+	}
+}
+
+func TestRewriteSVGImagePlaceholdersWithTokens(t *testing.T) {
+	t.Parallel()
+
+	in := `<svg><image slide:role="image" href="@./hero.png"/><image xlink:href='@./logo.png'/><image data-href="@./ignored.png"/><a href="@./link.png">link</a><image href="https://example.com/noop.png"/></svg>`
+	got, tokens := rewriteSVGImagePlaceholdersWithTokens(in, map[string]string{
+		"./hero.png": "boxcn_hero",
+		"./logo.png": "boxcn_logo",
+	})
+	for _, want := range []string{`href="boxcn_hero"`, `href="boxcn_logo"`} {
+		if !strings.Contains(got, want) {
+			t.Fatalf("rewritten SVG missing %s: %s", want, got)
+		}
+	}
+	if strings.Contains(got, "xlink:href") {
+		t.Fatalf("rewritten SVG must not retain xlink:href: %s", got)
+	}
+	if !strings.Contains(got, `<a href="@./link.png">`) {
+		t.Fatalf("non-image href should be untouched: %s", got)
+	}
+	if !strings.Contains(got, `data-href="@./ignored.png"`) {
+		t.Fatalf("non-href image attribute should be untouched: %s", got)
+	}
+	wantTokens := []string{"boxcn_hero", "boxcn_logo"}
+	if !reflect.DeepEqual(tokens, wantTokens) {
+		t.Fatalf("tokens = %v, want %v", tokens, wantTokens)
+	}
+}
+
+func TestInjectSVGTransportAssetMetadata(t *testing.T) {
+	t.Parallel()
+
+	in := `<?xml version="1.0"?><!DOCTYPE svg><!-- lead --><svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect/></svg>`
+	got, err := injectSVGTransportAssetMetadata(in, []string{"boxcn_a", "boxcn_b", "boxcn_a"})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	rootIdx := strings.Index(got, "<svg")
+	metaIdx := strings.Index(got, `<metadata data-svglide-assets="true">`)
+	if rootIdx < 0 || metaIdx < rootIdx {
+		t.Fatalf("metadata should be injected inside root <svg>, got: %s", got)
+	}
+	if strings.Count(got, `src="boxcn_a"`) != 1 {
+		t.Fatalf("boxcn_a should be deduped, got: %s", got)
+	}
+	if !strings.Contains(got, `src="boxcn_b"`) {
+		t.Fatalf("boxcn_b missing, got: %s", got)
+	}
+}
+
+func TestInjectSVGTransportAssetMetadataMergesExisting(t *testing.T) {
+	t.Parallel()
+
+	in := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><metadata data-svglide-assets="true"><img src="boxcn_a" /></metadata><image href="boxcn_a"/></svg>`
+	got, err := injectSVGTransportAssetMetadata(in, []string{"boxcn_a", "boxcn_b"})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if strings.Count(got, `<metadata data-svglide-assets="true">`) != 1 {
+		t.Fatalf("should keep a single transport metadata block, got: %s", got)
+	}
+	if strings.Count(got, `src="boxcn_a"`) != 1 {
+		t.Fatalf("boxcn_a should remain deduped, got: %s", got)
+	}
+	if !strings.Contains(got, `src="boxcn_b"`) {
+		t.Fatalf("boxcn_b should be appended, got: %s", got)
+	}
+}
+
+func TestClassifySVGlideSVGPageRoutes(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name     string
+		svg      string
+		wantMode svgClassifyMode
+		wantCode string
+	}{
+		{
+			name:     "native supported shape",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></svg>`,
+			wantMode: svgClassifyNative,
+		},
+		{
+			name:     "native supported server line role",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><line slide:role="line" x1="0" y1="0" x2="100" y2="60" stroke="#112233"/></svg>`,
+			wantMode: svgClassifyNative,
+		},
+		{
+			name:     "native supported server text role",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><foreignObject slide:role="text" x="0" y="0" width="300" height="80"><p xmlns="http://www.w3.org/1999/xhtml">SVGlide</p></foreignObject></svg>`,
+			wantMode: svgClassifyNative,
+		},
+		{
+			name:     "marked svg text still falls back",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><text slide:role="text" x="20" y="40">render me</text></svg>`,
+			wantMode: svgClassifyFallback,
+			wantCode: svgDiagNativeUnsupported,
+		},
+		{
+			name:     "wrong contract native rejects",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" slide:contract-version="svglide-authoring-contract/v0" viewBox="0 0 1280 720"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></svg>`,
+			wantMode: svgClassifyReject,
+			wantCode: svgDiagContractVersion,
+		},
+		{
+			name:     "wrong contract server text role rejects",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" slide:contract-version="svglide-authoring-contract/v0" viewBox="0 0 1280 720"><foreignObject slide:role="text" x="0" y="0" width="300" height="80"><p xmlns="http://www.w3.org/1999/xhtml">SVGlide</p></foreignObject></svg>`,
+			wantMode: svgClassifyReject,
+			wantCode: svgDiagContractVersion,
+		},
+		{
+			name:     "unsupported but renderable text falls back",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><text x="20" y="40">render me</text></svg>`,
+			wantMode: svgClassifyFallback,
+			wantCode: svgDiagNativeUnsupported,
+		},
+		{
+			name:     "wrong contract fallback-only svg still falls back",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" slide:contract-version="svglide-authoring-contract/v0" viewBox="0 0 1280 720"><text x="20" y="40">render me</text></svg>`,
+			wantMode: svgClassifyFallback,
+			wantCode: svgDiagNativeUnsupported,
+		},
+		{
+			name:     "table defaults to fallback",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><foreignObject x="20" y="40" width="400" height="240"><table xmlns="http://www.w3.org/1999/xhtml"><tr><td>a</td></tr></table></foreignObject></svg>`,
+			wantMode: svgClassifyFallback,
+			wantCode: svgDiagNativeUnsupported,
+		},
+		{
+			name:     "script rejects before create",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><script>alert(1)</script></svg>`,
+			wantMode: svgClassifyReject,
+			wantCode: svgDiagDisallowedScript,
+		},
+		{
+			name:     "external href rejects before create",
+			svg:      `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><image href="https://example.com/a.png" x="0" y="0" width="10" height="10"/></svg>`,
+			wantMode: svgClassifyReject,
+			wantCode: svgDiagExternalReference,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			got := classifySVGlideSVGPage(tt.svg, "page.svg", 0)
+			if got.Mode != tt.wantMode {
+				t.Fatalf("mode = %s, want %s; diagnostics=%v", got.Mode, tt.wantMode, got.Diagnostics)
+			}
+			if tt.wantCode == "" {
+				return
+			}
+			if len(got.Diagnostics) == 0 || got.Diagnostics[0].Code != tt.wantCode {
+				t.Fatalf("diagnostics = %v, want first code %s", got.Diagnostics, tt.wantCode)
+			}
+		})
+	}
+}
+
+func TestBuildSVGFallbackImageOnlyPage(t *testing.T) {
+	t.Parallel()
+
+	source := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><text x="20" y="40">fallback</text></svg>`
+	got, err := buildSVGFallbackImageOnlyPage(source, "boxcn_full_page")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	for _, want := range []string{
+		`xmlns:slide="https://slides.bytedance.com/ns"`,
+		`slide:role="slide"`,
+		`slide:contract-version="svglide-authoring-contract/v1"`,
+		`viewBox="0 0 1280 720"`,
+		`<image slide:role="image" href="boxcn_full_page" x="0" y="0" width="1280" height="720" preserveAspectRatio="none"/>`,
+	} {
+		if !strings.Contains(got, want) {
+			t.Fatalf("image-only SVG missing %s: %s", want, got)
+		}
+	}
+	if err := validateSVGlideSVG(got, "fallback.svg"); err != nil {
+		t.Fatalf("image-only SVG should be native-valid: %v", err)
+	}
+}
+
+func TestEnsureSVGlideContractRootAttrsInjectsMissingVersion(t *testing.T) {
+	t.Parallel()
+
+	source := `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></svg>`
+	got, err := ensureSVGlideContractRootAttrs(source)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !strings.Contains(got, `slide:contract-version="svglide-authoring-contract/v1"`) {
+		t.Fatalf("contract version missing: %s", got)
+	}
+	if strings.Contains(got, `slide:contract-version="svglide-authoring-contract/v1" slide:contract-version`) {
+		t.Fatalf("contract version duplicated: %s", got)
+	}
+}
+
+func TestCommandSVGRasterizerUnavailableDiagnostic(t *testing.T) {
+	t.Parallel()
+
+	r := commandSVGRasterizer{
+		command: "missing-svglide-renderer",
+		lookPath: func(string) (string, error) {
+			return "", os.ErrNotExist
+		},
+	}
+	err := r.CheckAvailable(context.Background())
+	if err == nil {
+		t.Fatal("expected renderer unavailable error")
+	}
+	diags := svglideDiagnosticsFromError(err)
+	if len(diags) != 1 || diags[0].Code != svgDiagRendererUnavailable {
+		t.Fatalf("diagnostics = %v, want renderer_unavailable", diags)
+	}
+}
+
+func TestCommandSVGRasterizerArgvAndOutputSize(t *testing.T) {
+	dir := t.TempDir()
+	script := filepath.Join(dir, "fake-resvg")
+	argvFile := filepath.Join(dir, "argv.txt")
+	if err := os.WriteFile(script, []byte("#!/bin/sh\nprintf '%s\\n' \"$@\" > \"$ARGV_FILE\"\nprintf png > \"$2\"\n"), 0o755); err != nil {
+		t.Fatalf("write fake renderer: %v", err)
+	}
+	in := filepath.Join(dir, "page.svg")
+	if err := os.WriteFile(in, []byte(`<svg/>`), 0o644); err != nil {
+		t.Fatalf("write svg: %v", err)
+	}
+	r := commandSVGRasterizer{
+		command:       script,
+		timeout:       time.Second,
+		maxOutputSize: 20,
+		env:           []string{"ARGV_FILE=" + argvFile},
+	}
+
+	out, size, err := r.Rasterize(context.Background(), in)
+	if err != nil {
+		t.Fatalf("unexpected rasterize error: %v", err)
+	}
+	if size != int64(len("png")) {
+		t.Fatalf("size = %d, want %d", size, len("png"))
+	}
+	if _, err := os.Stat(out); err != nil {
+		t.Fatalf("output file missing: %v", err)
+	}
+	argv, err := os.ReadFile(argvFile)
+	if err != nil {
+		t.Fatalf("read argv: %v", err)
+	}
+	lines := strings.Split(strings.TrimSpace(string(argv)), "\n")
+	if len(lines) != 2 || lines[0] != in || lines[1] != out {
+		t.Fatalf("argv = %q, want input and output path", string(argv))
+	}
+
+	r.maxOutputSize = 2
+	_, _, err = r.Rasterize(context.Background(), in)
+	if err == nil {
+		t.Fatal("expected output-size validation error")
+	}
+	diags := svglideDiagnosticsFromError(err)
+	if len(diags) == 0 || diags[0].Code != svgDiagRasterOutputTooLarge {
+		t.Fatalf("diagnostics = %v, want raster_output_too_large", diags)
+	}
+}
+
+func TestValidateSVGlideSVGRecursiveChildren(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name    string
+		svg     string
+		wantErr string
+	}{
+		{
+			name: "supported shape rect",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></svg>`,
+		},
+		{
+			name: "supported text foreignObject",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><foreignObject slide:role="shape" slide:shape-type="text" x="0" y="0" width="200" height="80"><p xmlns="http://www.w3.org/1999/xhtml">hello</p></foreignObject></svg>`,
+		},
+		{
+			name: "supported server text foreignObject",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><foreignObject slide:role="text" x="0" y="0" width="200" height="80"><p xmlns="http://www.w3.org/1999/xhtml">hello</p></foreignObject></svg>`,
+		},
+		{
+			name: "supported server line role",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><line slide:role="line" x1="0" y1="0" x2="100" y2="60"/></svg>`,
+		},
+		{
+			name: "supported image href",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><image slide:role="image" href="boxcn_img" x="0" y="0" width="100" height="60"/></svg>`,
+		},
+		{
+			name: "supported image xlink href before rewrite",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><image slide:role="image" xlink:href="@./hero.png" x="0" y="0" width="100" height="60"/></svg>`,
+		},
+		{
+			name: "supported path commands",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><path slide:role="shape" d="M1e-3 0 L80 0 H120 V40 C120 60 100 80 80 80 Q40 80 20 40 Z" fill="#123456"/></svg>`,
+		},
+		{
+			name: "defs and metadata are ignored",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><defs><rect id="r"/></defs><metadata data-svglide-assets="true"><img src="boxcn_img"/></metadata><circle slide:role="shape" cx="50" cy="50" r="20"/></svg>`,
+		},
+		{
+			name: "group container with role-fixed child",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><g fill="#112233" transform="translate(10 20)"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></g></svg>`,
+		},
+		{
+			name: "nested svg container with role-fixed child",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><svg viewBox="0 0 100 100"><circle slide:role="shape" cx="50" cy="50" r="20"/></svg></svg>`,
+		},
+		{
+			name: "group container ignores its own role",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><g slide:role="shape"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></g></svg>`,
+		},
+		{
+			name: "nested svg container ignores its own role",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><svg slide:role="shape" viewBox="0 0 100 100"><circle slide:role="shape" cx="50" cy="50" r="20"/></svg></svg>`,
+		},
+		{
+			name: "style and nested defs are ignored",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><style>.primary{fill:#123456}</style><g><defs><linearGradient id="g"><stop offset="0%" stop-color="#fff"/><stop offset="100%" stop-color="#000"/></linearGradient></defs></g><rect slide:role="shape" class="primary" x="0" y="0" width="100" height="60" fill="url(#g)"/></svg>`,
+		},
+		{
+			name: "filter and shadow styles are preserved",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><style>.card{filter:drop-shadow(2px 4px 8px rgba(0,0,0,.2));box-shadow:0 8px 20px rgba(0,0,0,.18)}</style><g><defs><filter id="shadow"><feDropShadow dx="2" dy="3" stdDeviation="5" flood-color="#000" flood-opacity=".25"/></filter></defs></g><rect slide:role="shape" class="card" x="0" y="0" width="100" height="60" filter="url(#shadow)"/></svg>`,
+		},
+		{
+			name: "foreignObject XHTML subtree is not role-validated",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><foreignObject slide:role="shape" slide:shape-type="text" x="0" y="0" width="200" height="80"><div xmlns="http://www.w3.org/1999/xhtml"><span>hello</span></div></foreignObject></svg>`,
+		},
+		{
+			name: "foreignObject XHTML br is allowed",
+			svg:  `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><foreignObject slide:role="shape" slide:shape-type="text" x="0" y="0" width="200" height="80"><div xmlns="http://www.w3.org/1999/xhtml">hello<br />world</div></foreignObject></svg>`,
+		},
+		{
+			name:    "namespaced root is rejected with precise message",
+			svg:     `<svg:svg xmlns:svg="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></svg:svg>`,
+			wantErr: `root element must be non-namespaced <svg>`,
+		},
+		{
+			name:    "root child missing role",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect x="0" y="0" width="100" height="60"/></svg>`,
+			wantErr: `<rect> must include slide:role="shape", "image", "line", or "text"`,
+		},
+		{
+			name:    "group child missing role is rejected",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><g><rect x="0" y="0" width="100" height="60"/></g></svg>`,
+			wantErr: `<rect> must include slide:role="shape", "image", "line", or "text"`,
+		},
+		{
+			name:    "unsupported text element remains rejected",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><text slide:role="shape" x="0" y="20">bad</text></svg>`,
+			wantErr: `<text slide:role="shape"> is not supported by SVGlide`,
+		},
+		{
+			name:    "rect shape requires geometry",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="shape" x="0" y="0" height="60"/></svg>`,
+			wantErr: `<rect slide:role="shape"> missing required attribute "width"`,
+		},
+		{
+			name:    "path shape requires d",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><path slide:role="shape" fill="#123456"/></svg>`,
+			wantErr: `<path slide:role="shape"> missing required attribute "d"`,
+		},
+		{
+			name:    "rect rejects percent geometry",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="shape" x="0" y="0" width="50%" height="60"/></svg>`,
+			wantErr: `attribute "width" must be a number or px length`,
+		},
+		{
+			name:    "rect rejects calc geometry",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="shape" x="calc(10px)" y="0" width="100" height="60"/></svg>`,
+			wantErr: `attribute "x" must be a number or px length`,
+		},
+		{
+			name:    "container transform rejects percent argument",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><g transform="translate(10% 20)"><rect slide:role="shape" x="0" y="0" width="100" height="60"/></g></svg>`,
+			wantErr: `transform translate() argument must be a number or px length`,
+		},
+		{
+			name:    "path rejects arc command",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><path slide:role="shape" d="M0 0 A10 10 0 0 1 20 20" fill="#123456"/></svg>`,
+			wantErr: `unsupported path command or character "A"`,
+		},
+		{
+			name:    "path rejects smooth command",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><path slide:role="shape" d="M0 0 S10 10 20 20" fill="#123456"/></svg>`,
+			wantErr: `unsupported path command or character "S"`,
+		},
+		{
+			name:    "plain metadata remains rejected",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><metadata><desc>not transport metadata</desc></metadata></svg>`,
+			wantErr: `<metadata> must include slide:role="shape", "image", "line", or "text"`,
+		},
+		{
+			name:    "foreignObject shape requires text type",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><foreignObject slide:role="shape"><p xmlns="http://www.w3.org/1999/xhtml">hello</p></foreignObject></svg>`,
+			wantErr: `<foreignObject slide:role="shape"> must include slide:shape-type="text"`,
+		},
+		{
+			name:    "line role must be line tag",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="line" x="0" y="0" width="100" height="60"/></svg>`,
+			wantErr: `<rect slide:role="line"> is not supported`,
+		},
+		{
+			name:    "text role must be foreignObject tag",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="text" x="0" y="0" width="100" height="60"/></svg>`,
+			wantErr: `<rect slide:role="text"> is not supported`,
+		},
+		{
+			name:    "svg text role is not native yet",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><text slide:role="text" x="0" y="20">later</text></svg>`,
+			wantErr: `<text slide:role="text"> is not supported`,
+		},
+		{
+			name:    "image role must be image tag",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="image" href="boxcn_img"/></svg>`,
+			wantErr: `<rect slide:role="image"> is not supported`,
+		},
+		{
+			name:    "image requires href",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><image slide:role="image" x="0" y="0" width="100" height="60"/></svg>`,
+			wantErr: `<image slide:role="image"> must include href`,
+		},
+		{
+			name:    "image requires geometry",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><image slide:role="image" href="boxcn_img" x="0" y="0" height="60"/></svg>`,
+			wantErr: `<image slide:role="image"> missing required attribute "width"`,
+		},
+		{
+			name:    "image rejects external href",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><image slide:role="image" href="https://images.unsplash.com/photo.jpg" x="0" y="0" width="100" height="60"/></svg>`,
+			wantErr: `<image slide:role="image"> must not use external http(s) or data href`,
+		},
+		{
+			name:    "unsupported role",
+			svg:     `<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide"><rect slide:role="decor"/></svg>`,
+			wantErr: `unsupported slide:role="decor"`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			err := validateSVGlideSVG(tt.svg, "page.svg")
+			if tt.wantErr == "" {
+				if err != nil {
+					t.Fatalf("unexpected error: %v", err)
+				}
+				return
+			}
+			if err == nil {
+				t.Fatalf("expected error containing %q", tt.wantErr)
+			}
+			if !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("error = %q, want to contain %q", err.Error(), tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestExtractSVGlideErrorJSON(t *testing.T) {
+	t.Parallel()
+
+	err := errors.New(`api error: SVGLIDE_ERROR_JSON:{"type":"svg_validation_error","page_index":0,"tag_name":"foreignObject","hint":"Use supported elements"}`)
+	got := extractSVGlideErrorJSON(err)
+	if got["type"] != "svg_validation_error" {
+		t.Fatalf("type = %v", got["type"])
+	}
+	if got["tag_name"] != "foreignObject" {
+		t.Fatalf("tag_name = %v", got["tag_name"])
+	}
+	suffix := formatSVGlideErrorSuffix(err)
+	for _, want := range []string{"svglide_error=", "svg_validation_error", "foreignObject"} {
+		if !strings.Contains(suffix, want) {
+			t.Fatalf("suffix = %q, want %q", suffix, want)
+		}
+	}
+}

skills/lark-slides/SKILL.md

@@ -15,6 +15,7 @@ metadata:
 | 用户需求 | 优先动作 | 关键文档 / 命令 |
 |----------|----------|-----------------|
 | 新建 PPT | 先规划 `slide_plan.json`，再按复杂度选择一步或两步创建 | `planning-layer.md`、`visual-planning.md`、`asset-planning.md`、`slides +create` |
+| AI 生成 SVG 创建 PPT | 复用 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json` 规划，生成 SVGlide SVG 后调用 `slides +create-svg` | `lark-slides-create-svg.md`、`svg-protocol.md` |
 | 大幅改写页面 | 先回读现有 XML，写入新 plan，再替换或重建相关页面 | `xml_presentations.get`、`+replace-slide`、`lark-slides-edit-workflows.md` |
 | 编辑单个标题、文本块、图片或局部元素 | 优先块级替换/插入，不改页序 | `slides +replace-slide`、`lark-slides-replace-slide.md` |
 | 读取或分析已有 PPT | 解析 slides/wiki token，回读全文或单页 XML，保存 `xml_presentation_id`、`slide_id`、`revision_id` | `xml_presentations.get`、`xml_presentation.slide.get` |
@@ -24,15 +25,19 @@ metadata:
 
 **CRITICAL — 开始前 MUST 先用 Read 工具读取 [`../lark-shared/SKILL.md`](../lark-shared/SKILL.md)，其中包含认证、权限处理**
 
-**CRITICAL — 生成任何 XML 之前，MUST 先用 Read 工具读取 [xml-schema-quick-ref.md](references/xml-schema-quick-ref.md)，禁止凭记忆猜测 XML 结构。**
+**CRITICAL — 走 XML 创建/编辑路径时，生成任何 XML 之前，MUST 先用 Read 工具读取 [xml-schema-quick-ref.md](references/xml-schema-quick-ref.md)，禁止凭记忆猜测 XML 结构。走 SVG 创建路径（`slides +create-svg`）时，MUST 改读 [svg-protocol.md](references/svg-protocol.md)，不要求读取 XML schema。**
 
-**CRITICAL — 新建演示文稿或大幅改写页面时，MUST 先生成 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json`，再生成 XML。先创建对应目录，规划层规则和中间产物生命周期见 [planning-layer.md](references/planning-layer.md)。仅替换一个标题、插入一个块等小型已有页编辑可豁免。**
+**CRITICAL — 走 `slides +create-svg` 时，输入必须是 SVGlide SVG：root `<svg>` 声明 `xmlns:slide` 且 `slide:role="slide"`；可渲染 SVG 元素必须用 `slide:role="shape"` 或 `slide:role="image"` 表达；`g` / 嵌套 `svg` 可作为容器，但容器内实际渲染元素仍必须各自声明 role。CLI 只读取文件、上传/替换图片占位符、注入 transport metadata 和调用现有 `/slide` 路由，不会把普通 SVG 自动补齐成协议 SVG。**
+
+**CRITICAL — 高质量 SVG deck 生成时，MUST 同时读取 [lark-slides-create-svg.md](references/lark-slides-create-svg.md)：复用现有 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json` 作为设计状态，先做 deck-level density plan，再定义布局盒，给 `foreignObject` 文本留足安全高度，默认必须使用真实图片资产（本地 `@./path` 或 file token），相邻页面要显著换版式；调用 API 前必须跑本地 preflight（优先使用 [`scripts/svg_preflight.py`](scripts/svg_preflight.py)），live 创建后必须 readback 校验。这些是生成技巧，不替代 [svg-protocol.md](references/svg-protocol.md) 的硬协议约束。**
+
+**CRITICAL — 新建演示文稿或大幅改写页面时，MUST 先生成 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json`，再生成 XML 或 SVGlide SVG。先创建对应目录，规划层规则和中间产物生命周期见 [planning-layer.md](references/planning-layer.md)。仅替换一个标题、插入一个块等小型已有页编辑可豁免。**
 
 **CRITICAL — 新建演示文稿或大幅改写页面时，生成 XML 前 MUST 读取 [visual-planning.md](references/visual-planning.md)，确保 `layout_type`、`visual_focus`、`text_density` 实际改变页面几何、主视觉和文本量。**
 
 **CRITICAL — 新建演示文稿或大幅改写页面时，规划 `asset_need` MUST 遵循 [asset-planning.md](references/asset-planning.md)：只做元数据规划，必须有 `fallback_if_missing`，不得要求真实搜索、下载或上传素材。**
 
-**CRITICAL — 创建或大幅改写后，MUST 按 [validation-checklist.md](references/validation-checklist.md) 做显式验证：回读全文 XML、核对页数和关键元素、检查空白/破损页、明显溢出、布局风险；XML 语法和文本重叠静态检查优先使用 [`scripts/xml_text_overlap_lint.py`](scripts/xml_text_overlap_lint.py)。**
+**CRITICAL — 创建或大幅改写后，MUST 按 [validation-checklist.md](references/validation-checklist.md) 做显式验证：回读全文 XML、核对页数和关键元素、检查空白/破损页、明显溢出、布局风险；XML 语法和文本重叠静态检查优先使用 [`scripts/xml_text_overlap_lint.py`](scripts/xml_text_overlap_lint.py)，SVG 创建前的本地 preflight 优先使用 [`scripts/svg_preflight.py`](scripts/svg_preflight.py)。**
 
 **CRITICAL — 创建前自检或失败排障时，MUST 按 [troubleshooting.md](references/troubleshooting.md) 检查 XML 转义、结构、shell 截断、图片 token、3350001 和布局风险。**
 
@@ -77,7 +82,7 @@ lark-cli auth login --domain slides
 
 按需再读：
 
-- 创建：[`lark-slides-create.md`](references/lark-slides-create.md)
+- 创建：[`lark-slides-create.md`](references/lark-slides-create.md)；SVG 创建：[`lark-slides-create-svg.md`](references/lark-slides-create-svg.md)、[`svg-protocol.md`](references/svg-protocol.md)
 - 编辑：[`lark-slides-edit-workflows.md`](references/lark-slides-edit-workflows.md)、[`lark-slides-replace-slide.md`](references/lark-slides-replace-slide.md)
 - 图片：[`lark-slides-media-upload.md`](references/lark-slides-media-upload.md)
 - 模板：[`template-catalog.md`](references/template-catalog.md)、[`scripts/template_tool.py`](scripts/template_tool.py)
@@ -99,7 +104,7 @@ lark-cli auth login --domain slides
 - **背景一致性**：先确定全 deck 的背景策略，默认保持同一明暗基调和底色体系；只有分节、转场或强调页才有意改变背景，并必须通过相同主色、纹理、边栏或 motif 让变化看起来属于同一套设计。无论深浅，都要保证正文、图标和线条对比充足。
 - **统一 motif**：选择一个可复用视觉母题贯穿全文，例如粗侧边栏、圆形图标底、半出血图片区、编号节点、卡片左上角色块或大号数字。不要每页换一套装饰语言。
 
-每页至少要有一个视觉元素：图片、图标、图表、表格、流程、对比结构、大号数字、示意图或由 shape 组成的抽象视觉。文本框本身不算主视觉。
+每页至少要有一个视觉元素：图片、图标、图表、表格、流程、对比结构、大号数字、示意图或由 shape 组成的抽象视觉。文本框本身不算主视觉。展示型、宣传型、产品型和案例型 deck 不能全程纯矢量，必须包含真实图片资产作为封面、半出血主视觉、案例场景、产品截图或材质背景。
 
 可优先考虑这些页面形态：
 
@@ -123,7 +128,8 @@ lark-cli auth login --domain slides
 - 不要所有页面复用同一种标题 + 三 bullets 版式。
 - 不要用低对比文字或低对比图标，例如浅灰字压在浅色背景上。
 - 不要让装饰线穿过文字，或让页脚、来源、编号挤压主体内容。
-- 不要把素材缺失表现为空白图片框；必须按 `fallback_if_missing` 生成 XML-native 视觉。
+- 不要使用版权状态不明的图片、logo、截图或素材；图片必须来自用户提供、公司/项目自有、明确可商用授权图库，或授权条件清晰的 AI 生成资产，并在产物说明或素材清单中记录来源、授权/许可类型、原始 URL 和是否需要署名。
+- 不要把素材缺失表现为空白图片框；必须先尝试获取或生成可用图片资产。只有用户明确要求纯矢量、网络/权限不可用，或主题确实不适合图片时，才按 `fallback_if_missing` 生成 XML-native 视觉，并在结果中说明。
 - 不要留下模板占位文案、示例公司名、示例日期或与用户主题无关的原模板内容。
 
 ### 创建方式选择
@@ -132,6 +138,7 @@ lark-cli auth login --domain slides
 |------|----------|
 | 简单 XML（1-3 页、结构简单、几乎无复杂中文和特殊字符） | `slides +create --slides '[...]'` 一步创建 |
 | 复杂 XML（多页、含中文、大段文本、复杂布局、嵌套引号、特殊字符较多） | **两步创建**：先 `slides +create` 创建空白 PPT，再用 `xml_presentation.slide create` 逐页添加 |
+| AI 生成 SVGlide SVG（希望减少 shell XML 转义、按文件逐页创建） | `slides +create-svg --file page1.svg --file page2.svg --title "<标题>"` |
 | 已有 PPT 继续追加或插入页面 | 使用 `xml_presentation.slide create`，必要时配合 `before_slide_id` |
 
 > [!WARNING]
@@ -160,10 +167,10 @@ Step 2: 生成大纲 → 用户确认 → 写入 slide_plan.json
   - 新建 / 大幅改写必须先创建目录并写入 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json`
   - plan 字段、路径命名、模板边界和 `asset_need` 结构按 planning-layer.md / asset-planning.md 执行
 
-Step 3: 按 slide_plan.json 生成 XML → 创建
+Step 3: 按 slide_plan.json 生成 XML 或 SVGlide SVG → 创建
   - 逐页消费 plan：key_message 定主结论，layout_type 定几何，visual_focus 定主视觉，text_density 定文本量
   - 缺少真实素材时必须用 `fallback_if_missing` 生成 XML-native 兜底视觉；不要留空
-  - 创建方式按“创建方式选择”判断；图片、复杂 XML、转义和 3350001 排查按 lark-slides-create.md、media-upload.md、troubleshooting.md 执行
+  - XML 路径按 lark-slides-create.md、media-upload.md、troubleshooting.md 执行；SVG 路径按 lark-slides-create-svg.md 和 svg-protocol.md 执行，产物是 `.svg` 文件而不是 Slides XML，仍复用同一个 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json`
 
 Step 4: 审查 & 交付
   - 创建完成后，必须用 xml_presentations.get 读取全文 XML，并按 validation-checklist.md 做显式验证记录，包括 XML 文本重叠检查
@@ -259,6 +266,7 @@ Shortcut 是对常用操作的高级封装（`lark-cli slides +<verb> [flags]`
 | Shortcut | 说明 |
 |----------|------|
 | [`+create`](references/lark-slides-create.md) | 创建 PPT（可选 `--slides` 一步添加页面，支持 `<img src="@./local.png">` 占位符自动上传） |
+| [`+create-svg`](references/lark-slides-create-svg.md) | 从一个或多个 SVGlide SVG 文件创建 PPT，按 `--file` 顺序逐页调用现有 `/slide` 路由 |
 | [`+media-upload`](references/lark-slides-media-upload.md) | 上传本地图片到指定演示文稿，返回 `file_token`（用作 `<img src="...">`），最大 20 MB |
 | [`+replace-slide`](references/lark-slides-replace-slide.md) | 对已有幻灯片页面进行块级替换/插入（`block_replace` / `block_insert`），自动注入 id 和 `<content/>`，不改变页序 |
 
@@ -272,19 +280,20 @@ lark-cli slides <resource> <method> [flags] # 调用 API
 ## 核心规则
 
 1. **先规划再写 XML**：新建演示文稿或大幅改写页面时，必须先写入 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json`；模板、风格和大纲只能作为规划输入，不能绕过规划层
-2. **创建流程**：简单短 XML（1-3 页、结构简单、特殊字符少）可用 `slides +create --slides '[...]'` 一步创建；复杂内容、含图片/中文大段文本/嵌套引号/较多特殊字符，或超过 10 页时，默认先 `slides +create` 创建空白 PPT，再用 `xml_presentation.slide.create` 逐页添加
+2. **创建流程**：简单短 XML（1-3 页、结构简单、特殊字符少）可用 `slides +create --slides '[...]'` 一步创建；复杂内容、含图片/中文大段文本/嵌套引号/较多特殊字符，或超过 10 页时，默认先 `slides +create` 创建空白 PPT，再用 `xml_presentation.slide.create` 逐页添加；AI SVG 路径使用 `slides +create-svg`，不要把 SVG 塞进 `--slides`
 3. **`<slide>` 直接子元素只有 `<style>`、`<data>`、`<note>`**：文本和图形必须放在 `<data>` 内
 4. **文本通过 `<content>` 表达**：必须用 `<content><p>...</p></content>`，不能把文字直接写在 shape 内
 5. **保存关键 ID**：后续操作需要 `xml_presentation_id`、`slide_id`、`revision_id`
 6. **删除谨慎**：删除操作不可逆，且至少保留一页幻灯片
 7. **编辑已有页面优先块级替换**：修改单个 shape/img 用 `+replace-slide`（`block_replace` / `block_insert`），不要整页重建；只有需要替换整页结构时才用 `slide.delete` + `slide.create`
-8. **`<img src>` 只能用上传到飞书 drive 的 `file_token`，禁止使用 http(s) 外链 URL**：飞书 slides 渲染端不会代理外链图片，外链 src 在 PPT 里通常不显示或显示破图。流程必须是「先把图存到本地 → 用 `slides +media-upload` 上传或 `+create --slides` 的 `@./path` 占位符自动上传 → 拿 `file_token` 写进 `<img src>`」。如果用户给了网图链接，先 `curl`/下载到 CWD 内再走上传流程，不要直接把外链 URL 塞进 `src`。**图片最大 20 MB**（slides upload API 不支持分片上传）。
+8. **图片只能用上传到飞书 drive 的 `file_token`，禁止使用 http(s) 外链 URL**：XML 路径使用 `<img src="...">`；SVG 路径使用 `<image slide:role="image" href="...">`。流程必须是「先把图存到本地 → 用 `slides +media-upload` 上传，或 `+create --slides` / `+create-svg` 的 `@./path` 占位符自动上传 → 拿 `file_token` 写进图片引用」。如果用户给了网图链接，先 `curl`/下载到 CWD 内再走上传流程，不要直接把外链 URL 塞进 `src` / `href`。**图片最大 20 MB**（slides upload API 不支持分片上传）。
 
 ## 权限速查
 
 | 方法 | 所需 scope |
 |------|-----------|
 | `slides +create` | `slides:presentation:create`, `slides:presentation:write_only`（含 `@` 占位符时还需 `docs:document.media:upload`） |
+| `slides +create-svg` | `slides:presentation:create`, `slides:presentation:write_only`, `docs:document.media:upload` |
 | `slides +media-upload` | `docs:document.media:upload`（wiki URL 解析还需 `wiki:node:read`） |
 | `slides +replace-slide` | `slides:presentation:update`（wiki URL 解析还需 `wiki:node:read`） |
 | `xml_presentations.get` | `slides:presentation:read` |
@@ -293,4 +302,12 @@ lark-cli slides <resource> <method> [flags] # 调用 API
 | `xml_presentation.slide.get` | `slides:presentation:read` |
 | `xml_presentation.slide.replace` | `slides:presentation:update` |
 
-> **注意**：如果 md 内容与 `slides_xml_schema_definition.xml` 或 `lark-cli schema slides.<resource>.<method>` 输出不一致，以后两者为准。
+> **注意**：XML 路径如果 md 内容与 `slides_xml_schema_definition.xml` 或 `lark-cli schema slides.<resource>.<method>` 输出不一致，以后两者为准；SVG 路径以 [svg-protocol.md](references/svg-protocol.md) 为准。
+
+## SVG 排障
+
+`slides +create-svg` 失败时，优先查看错误中是否包含 `svglide_error` 或服务端 `SVGLIDE_ERROR_JSON:` marker。常见修复：
+
+- `svg_validation_error`：按 [svg-protocol.md](references/svg-protocol.md) 修正 root `<svg>`、`xmlns:slide`、`slide:role` 或不支持元素。
+- 图片不显示：确认 `<image>` 使用 canonical `href="file_token"`，不要保留 `xlink:href`；本地图片用 `href="@./image.png"` 让 CLI 上传，或用 `--assets assets.json` 提供 token 映射。
+- 有 file token 仍失败：确认 SVG 内存在 transport metadata：`<metadata data-svglide-assets="true"><img src="同一个 file_token" /></metadata>`；`+create-svg` 会自动注入，手写 SVG 时不要删除。

skills/lark-slides/references/lark-slides-create-svg.md

@@ -0,0 +1,450 @@
+# slides +create-svg
+
+从一个或多个 SVGlide SVG 文件创建飞书幻灯片：
+
+```bash
+lark-cli slides +create-svg \
+  --as user \
+  --title "Demo" \
+  --file page1.svg \
+  --file page2.svg
+```
+
+## 适用场景
+
+- AI 已经能生成符合 [svg-protocol.md](svg-protocol.md) 的 SVGlide SVG。
+- 希望按文件逐页创建，避免把大段 XML/SVG 塞进 shell 参数。
+- 需要 SVG 内本地图片占位符自动上传并替换为 file token。
+
+不适用：
+
+- 你只有普通 SVG，且没有 `slide:role` 协议标记。
+- 复杂普通 SVG 不能直接提交；需要把实际可渲染元素标成 SVGlide role。`g` / 嵌套 `svg` 容器可以保留，但不能代替子元素 role。
+- 你需要插入到指定页前；MVP 只创建新 presentation 并按顺序追加页面。
+
+## Flags
+
+| Flag | 说明 |
+|------|------|
+| `--title` | presentation 标题，省略时为 `Untitled` |
+| `--file` | SVG 文件路径；可重复，页面顺序就是 flag 顺序 |
+| `--assets` | 可选 `assets.json`，把 SVG `@path` 映射到已上传 file token |
+| `--dry-run` | 展示创建空白 presentation + N 次 `/slide` 调用，不真实创建 |
+
+## 请求链路
+
+CLI 先创建空白 presentation：
+
+```http
+POST /open-apis/slides_ai/v1/xml_presentations
+```
+
+随后对每个 SVG 文件调用现有 slide create 路由：
+
+```http
+POST /open-apis/slides_ai/v1/xml_presentations/{xml_presentation_id}/slide?revision_id=-1
+```
+
+body：
+
+```json
+{
+  "slide": {
+    "content": "<svg ...>...</svg>"
+  }
+}
+```
+
+不会新增 `/svg_slide` 路由，也不会把 `file_meta_map` 当成 CLI 到服务端的契约。
+
+## 图片处理
+
+SVG 内本地图片写成：
+
+```xml
+<image slide:role="image" href="@./hero.png" x="0" y="0" width="320" height="180" />
+```
+
+`<image>` 可以位于 `g` / 嵌套 `svg` 容器中；CLI 会全局扫描 `<image href="@...">` 或 `<image xlink:href="@...">` 并替换为 canonical `href="file_token"`。
+
+CLI 会：
+
+1. 上传本地图片到新 presentation。
+2. 把 `href="@./hero.png"` 或 `xlink:href="@./hero.png"` 替换为 canonical `href="file_token"`。
+3. 注入 transport metadata：`<metadata data-svglide-assets="true"><img src="file_token" /></metadata>`。
+
+预上传资源可用 `--assets`：
+
+```json
+{
+  "@./hero.png": "boxcn..."
+}
+```
+
+## 生成质量规则
+
+这些规则用于生成阶段主动规避服务端降级、近似和泛化错误。几何数值、path 命令、role/必填属性、图片 href 等基础约束已由 CLI 强校验；版式、美观和文本溢出仍需要生成器或人工复核。
+
+### 与现有规划层对齐
+
+SVG 创建不使用单独的规划目录。新建或大幅改写 SVG deck 时，仍然复用 [planning-layer.md](planning-layer.md) 规定的 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json`，不要另建 `.lark-slides/svg-plan` 或只保留散落的 `.svg` 文件。
+
+在通用 plan 字段基础上，SVG deck 还应补充这些 SVG 专属字段：
+
+```json
+{
+  "output_mode": "svglide-svg",
+  "canvas": {"width": 960, "height": 540, "viewBox": "0 0 960 540"},
+  "safe_area": {"x": 48, "y": 40, "width": 864, "height": 460},
+  "svg_constraints": {
+    "text_element": "foreignObject slide:role=shape slide:shape-type=text",
+    "path_commands": "M/L/H/V/C/Q/Z only",
+    "image_href": "@./path or file token only",
+    "css": "explicit font-size/font-weight/color/line-height/text-align; no font shorthand"
+  },
+  "svg_files": [
+    {"page": 1, "path": ".lark-slides/plan/<deck-id>/pages/page-001.svg"}
+  ],
+  "preflight": {
+    "command": "python3 skills/lark-slides/scripts/svg_preflight.py --input .lark-slides/plan/<deck-id>/pages/page-001.svg",
+    "status": "pending"
+  },
+  "readback_verification": {
+    "status": "pending",
+    "checks": ["page_count", "blank_page", "canvas_bounds", "text_overlap", "asset_tokens", "closing_slide"]
+  }
+}
+```
+
+模板也复用现有 `template_tool.py search -> summarize -> extract` 路由。模板摘要只用于选择主题、页面流、视觉节奏和布局骨架；生成 SVG 时要把模板结构翻译成 SVG layout boxes / visual recipes，不要照搬模板 XML，也不要读取完整模板 XML。
+
+### 生成前强约束
+
+以下规则来自实际 SVGlide live 生成、回读和修复经验，生成器必须先满足这些规则，再追求视觉复杂度。
+
+- MUST: 默认使用 Lark Slides 当前回读画布 `960 x 540`，即 root 写成 `width="960" height="540" viewBox="0 0 960 540"`。不要默认用 `1280 x 720`，否则服务端回读后可能整页偏大并裁切。
+- MUST: 主体元素使用安全区，建议 `safe = x:48 y:40 w:864 h:460`。除全屏背景外，文本、卡片、图表、标签、节点和图例都必须落在安全区内。
+- MUST: 多页 deck 应包含明确的 closing slide。8 页以上讲解/汇报型 deck 不要把 roadmap / next-playbook 当作结束页；最后一页应包含 `closing`、`summary`、`Q&A`、`Thanks` 或下一步联系信息。
+- MUST: `foreignObject` 文本样式使用显式 CSS：`font-size`、`font-weight`、`font-family`、`color`、`line-height`、`text-align`。不要用 `font:` shorthand 表达关键字号和加粗。
+- MUST: 提交前和 live 回读后都检查边界和重叠：非背景元素不得越过 `960 x 540`，第 2/3 页等信息密集页必须额外检查 text bbox overlap。
+- SHOULD: 如果本地预览使用更大画布，例如 `1280 x 720`，必须在输出给 `slides +create-svg` 前按比例换算为 `960 x 540`，而不是只改 root viewBox。
+
+### 生成器实现约束与 Preflight
+
+生成器必须先把高概率错误拦在本地，再调用 `lark-cli`。不要依赖 live 创建后的人工修补来发现基础问题。
+
+实现约束：
+
+- MUST: SVG 生成 helper 的返回类型保持一致。推荐统一返回 `string`，或统一返回 `string[]` 后在页面末尾 `flat().filter(Boolean).join("\n")`；不要混用 `...items.map(...).join("\n")`，这会把已拼好的 SVG 标签按字符展开，生成非法 XML。
+- MUST: 所有组件都从稳定布局盒推导坐标，避免散点手调。文本、标签、图例、曲线端点和卡片内容应有明确的父盒和对齐规则。
+- MUST: 生成脚本要先写 deck plan / asset list，再写页面；不能边补坐标边生成最终 SVG。
+- SHOULD: 对高风险页面使用更保守的留白：标题与图表标签至少相隔 24px，曲线端点标签不要压在标题/图例区域，卡片内文字与边框至少留 10-14px。
+- SHOULD: 把每页的 `safe`、`titleBox`、`visualBox`、`textBox` 等布局盒保存为可检查数据，便于自动计算越界和重叠。
+
+本地 preflight 必须在 `slides +create-svg` 前执行，失败即停：
+
+- `python3 skills/lark-slides/scripts/svg_preflight.py --input page-*.svg` 通过；如果脚本不可用，再退回 `xmllint --noout page-*.svg` 加人工检查。
+- root 是 `width="960" height="540" viewBox="0 0 960 540"`。
+- root / leaf `slide:role` 完整，所有 leaf 有几何必填属性。
+- 禁止 `font:` shorthand、http(s) / data URL 图片、未下载的远程图片、空图片框。
+- 禁止 unsupported path command；`path d` 只含 `M/L/H/V/C/Q/Z`。
+- 非背景元素不得越界；主体元素应在 safe area 内。
+- 文本框做 bbox overlap 近似检查，尤其是目录、痛点、竞品表、案例图表和总结页。
+- 图片资产文件存在、大小合理、授权来源清单完整。
+
+创建顺序：
+
+```text
+generate deck plan -> generate assets -> generate SVG files
+-> local preflight -> lark-cli slides +create-svg --dry-run
+-> live create -> xml_presentations get readback
+-> readback bbox / text overlap / closing slide checks
+```
+
+readback 不能省略。服务端会把 SVGlide 转成 Slides XML，文字 bbox、path bounds 和图片 token 可能和本地 SVG 预估不同；本地 preflight 负责拦住确定错误，readback 负责发现转换后的版式漂移。
+
+### Deck 级密度规划
+
+生成多页 SVG deck 前，先写 deck-level plan。页面类型只定义叙事职责，密度由 `deck_type`、受众、页面目的和节奏共同决定，不要把某个 page type 永久绑定为固定密度。
+
+最小 plan schema：
+
+```json
+{
+  "deck_type": "explain | decision | product | brand | technical | education | report",
+  "audience": "who will read it",
+  "goal": "what the deck should make the audience understand or decide",
+  "density_strategy": "how low/medium/high density pages are distributed",
+  "asset_strategy": "which real images are needed, where they will be used, copyright/license source, and fallback if unavailable",
+  "visual_rhythm": "how layout, imagery, charts, and text density vary across pages",
+  "slides": [
+    {
+      "page": 1,
+      "page_type": "cover",
+      "density": "low",
+      "density_mode": "visual-dense",
+      "takeaway": "one sentence the audience should remember",
+      "evidence": [],
+      "visual_structure": "full-bleed image with title overlay",
+      "layout_guardrails": ["large hero title", "no dense body copy"]
+    }
+  ]
+}
+```
+
+常用 `page_type`：
+
+```text
+cover, opener, agenda, section-divider, context, problem, opportunity,
+executive-summary, content, data, comparison, process, case-study, demo,
+architecture, system, roadmap, timeline, decision, recommendation,
+risk, tradeoff, summary, closing, q-and-a, appendix
+```
+
+密度规则：
+
+- MUST: 每页都要有明确 `takeaway`，即使是封面、分隔页和结束页。
+- MUST: 每个 SVG deck 默认都要包含真实图片资产，不要全程只用矢量 shape 冒充“配图”。展示型、宣传型、产品型、品牌型和案例型 deck 至少包含 3 处图片使用，其中至少 1 页使用全幅或半出血图片主视觉。
+- MUST: 高密度页必须有承载信息的视觉结构，例如矩阵、流程、地图、时间线、标注图、案例卡或手绘微图表，不能只有装饰图形。
+- SHOULD: 高密度内容页通常包含 3-6 个信息块和若干可读细节，但 executive brief、品牌页、产品视觉页、短汇报可以降低数量，只保留强结论、关键证据和视觉锚点。
+- SHOULD NOT: 不要让所有高密度页长成同一种“主结论 + 3-6 卡片 + 3 个 callout”模板。
+- MUST NOT: 缺少素材或数据时不要编造数字、客户名、logo、排名、引用或真实案例；用 qualitative label、relative scale、hypothesis/assumption 标注兜底。
+
+### 结构示例
+
+8-10 页讲解型 deck 可参考这个节奏，但不要把它当成唯一模板；如果 deck 已经包含 roadmap / playbook，仍建议再补一页 closing：
+
+```text
+cover -> opener/context -> agenda/map -> content -> data/comparison
+-> process/system breakdown -> case-study/demo -> content/implications
+-> summary -> closing
+```
+
+5 页决策汇报优先前置结论：
+
+```text
+cover -> executive-summary -> options/comparison -> recommendation/risk -> next steps
+```
+
+6 页产品/品牌 deck 可以强化视觉叙事：
+
+```text
+cover -> value proposition -> user scenario -> feature map/demo
+-> proof/roadmap -> closing
+```
+
+边界处理：
+
+- 3-5 页短 deck 可以省略 agenda，把 summary 并入 closing。
+- 15 页以上长 deck 应增加 section-divider 或 recap，避免连续高密度阅读疲劳。
+- 技术方案要混合 architecture、process、tradeoff、risk，不要连续堆文字。
+- 教学讲解要前置 context / concept map，逐步增加密度。
+- 素材不足时，用抽象视觉系统、定性矩阵、annotated wireframe、scenario card 兜底，并标明假设。
+
+### 先定义布局盒
+
+不要直接手写散点坐标。每页先定义稳定布局盒，再把文字、图形、图例和图片放进盒内：
+
+```text
+page = 960 x 540
+safe = x:48 y:40 w:864 h:460
+titleBox = x:54 y:52 w:600 h:96
+visualBox = x:516 y:176 w:350 h:260
+notesGrid = x:54 y:430 w:760 h:48
+```
+
+生成后检查：
+
+- 关键元素必须在 safe area 内。
+- 同组元素使用同一个父盒推导坐标。
+- 图例、标签、指标不能浮在不上不下的位置，必须相对主视觉左/右/下边对齐。
+- 如果页面有圆、节点、卡片或框体，内容中心应和外框中心基本一致，不靠手调 `x + 10`、`y + 10` 维持观感。
+- 不要把 1280x720 的坐标直接提交给 `slides +create-svg`。当前服务端回读画布通常是 960x540，错误坐标系会表现为每页偏大、右侧卡片裁切、底部标签越界。
+
+### 文本安全余量
+
+`foreignObject` 文本优先使用显式 CSS。为了服务端转换到 SXSD/XML 后保留样式，字号、加粗、颜色、行距和对齐必须写成独立属性；不要把关键样式藏在 `font:` shorthand 或只写在复杂外层 wrapper 上：
+
+```xml
+<foreignObject slide:role="shape" slide:shape-type="text" x="54" y="62" width="600" height="42">
+  <div xmlns="http://www.w3.org/1999/xhtml"
+       style="margin:0;padding:0;font-size:30px;font-weight:900;font-family:Arial,'Source Han Sans SC';color:#111827;line-height:1.12;text-align:left;letter-spacing:0;">
+    关键结论：增长来自三件事
+  </div>
+</foreignObject>
+```
+
+中文和混排字体要留安全高度：
+
+- subtitle 不小于 64px。
+- note / chip 单行文本盒不小于 20px。
+- 小型标签文本盒不小于 14px。
+- 多行文字要按行高预估高度，再额外留 8-12px。
+- 右侧图例或矩阵格里的文字不得贴边，水平 padding 至少 10-14px。
+- 服务端支持 `foreignObject` 内的 `<br />`。为了本地预览和标题排版稳定，标题/大段文本优先使用多个块级 `div` 或 `p` 控制行高，不要只靠 `<br />` 调整复杂布局。
+- 如果需要垂直居中，优先通过更准确的文本框高度、段落行高和 y 坐标解决；布局 wrapper 可以使用，但实际文字节点仍要带显式 `font-size` / `font-weight` / `color`。
+
+### 几何与 path 安全线
+
+leaf 几何属性必须写数字或 `px`，不要生成百分比、`em/rem`、`calc(...)`：
+
+```xml
+<rect slide:role="shape" x="80" y="96" width="420px" height="240px" />
+```
+
+`path d` 只生成 `M/L/H/V/C/Q/Z` 命令。不要生成 `A`、`S`、`T` 等命令；需要圆角或弧线时，用 `C` / `Q` 近似，或改用 `circle` / `ellipse` / `rect`。
+
+Transform 参数同样使用数字或 `px`。不要写 `translate(10%, 20%)`，先在布局盒里换算成绝对坐标。
+
+### 版式节奏
+
+同一 deck 不能连续复用同一种“暗色网格 + 左文案 + 右卡片 + 底部 chips”。10 页左右的讲解型 deck 至少混用这些结构：
+
+- 封面 / 全幅图片背景页。
+- 目录矩阵页或行业地图页。
+- 左文右图 / 左图右文双栏页。
+- 全幅路线图或时间线页。
+- 2x2 / 2x4 总结矩阵页。
+- 数据仪表页、流程页、对比页或案例页。
+
+相邻页面至少改变一个主结构维度：主视觉位置、网格列数、图片用法、文本密度或阅读方向。
+
+### 图片使用
+
+默认必须规划和使用图片资产，并规避版权风险。图片必须来自用户提供、公司/项目自有、明确可商用授权图库，或授权条件清晰的 AI 生成资产；不要使用版权状态不明的图片、logo、截图、新闻配图、竞品官网图或搜索引擎随手抓取的素材。正确流程是先下载或生成到本地，再写成本地占位符：
+
+```xml
+<image slide:role="image" href="@./assets/hero.jpg" x="0" y="0" width="960" height="540" />
+```
+
+图片不只用于局部卡片背景，也可以作为整页背景、半出血主视觉、材质纹理、案例示例、产品截图、数据仪表截图或图鉴封面。作为整页背景时，必须叠加半透明遮罩或暗角，保证标题和正文对比度。
+
+图片数量与用法建议：
+
+- MUST: 在 `asset_strategy` 或产物 README 中记录图片来源、授权/许可类型、下载 URL 或生成方式；无法确认授权时不得使用。
+- MUST: 5 页以上 deck 至少使用 1 张真实图片；8 页以上 deck 至少使用 2 张；宣传/产品/品牌/案例型 deck 至少使用 3 张。
+- MUST: 封面优先使用图片或图片+抽象图形混合主视觉，不要只用网格、光效和几何背景。
+- MUST: 案例页优先使用行业场景图、产品截图、仪表盘截图或真实质感背景，并叠加数据 callout。
+- SHOULD: 同一 deck 中混用全幅背景、半出血图片、卡片图、纹理/材质背景和标注型截图，避免所有图片都只是小卡片背景。
+- MUST NOT: 保留空图片框、破图、http(s) 外链或 data URL。素材不可用时要重新获取/生成，或在最终说明中明确为什么退回矢量。
+
+优先使用这些来源，但每张图仍必须检查并记录具体页面上的授权信息：
+
+| Source | 适合用途 | 规则 |
+|--------|----------|------|
+| Unsplash | 高质量摄影、封面背景、场景图 | 可商用图库；记录图片页 URL 和 license |
+| Pexels | 商务、科技、生活类配图 | 可商用图库；记录图片页 URL 和 license |
+| Pixabay | 图片、插画、视频、音频 | 可商用图库；避开人物/品牌/商标误导 |
+| Openverse | CC / Public Domain 搜索 | 每张图 license 不同；按单图要求署名 |
+| Wikimedia Commons | 百科、历史、技术、公共领域素材 | 每张图 license 不同；常见需要署名 |
+| The Met Open Access | 艺术品、历史图像、文化视觉 | 仅使用 Open Access / CC0 条目 |
+| Smithsonian Open Access | 博物馆、科学、历史、2D/3D 资产 | 仅使用 Open Access / CC0 条目 |
+| NASA Image and Video Library | 太空、科技、地球、航天视觉 | 避开 NASA 标识商业背书、人物肖像和第三方权利 |
+
+素材清单建议字段：
+
+```json
+{
+  "local_path": "./assets/hero.jpg",
+  "source": "Unsplash",
+  "source_url": "https://...",
+  "license": "Unsplash License",
+  "commercial_use": true,
+  "attribution_required": false,
+  "notes": "No recognizable trademark or misleading endorsement"
+}
+```
+
+### 信息密度与图鉴感
+
+短 note 不要占一个很宽胶囊。优先写成“编号/标签 + 主句 + 微解释/数值”：
+
+```text
+03 GRID ENERGY 86% | storage demand peaks before grid balancing
+```
+
+内容页可以用三种方式提高密度，不要把高密度等同于堆文字：
+
+- `text-dense`: 多解释、多证据、多注释，适合背景分析和概念讲解。
+- `chart-dense`: SVG shape 手绘矩阵、流程、时间线、微柱状、雷达、散点、标尺；不要默认依赖 Slides 原生 chart，也不要把外部图表截图当成唯一方案。
+- `visual-dense`: 高级视觉图案或图片上叠加标注层、数据 callout、局部标签、对比线和图例。
+
+视觉区要补足可读细节，避免只有装饰符号：
+
+- 局部标注、刻度、坐标轴、图例。
+- 行业标签、材料纹理、指标卡。
+- 路线节点、连接线、层级分区。
+- 小型表格、雷达/柱状/散点等微图表。
+
+### 生成后检查
+
+生成脚本或人工复核必须检查：
+
+- 是否已执行本地 preflight，且所有 SVG 通过 XML、协议、资产、bbox 和文本重叠检查。
+- 是否已执行 `slides +create-svg --dry-run`，确认请求链路是创建 presentation + 按页追加 SVG。
+- live 创建后是否已用 `xml_presentations get` 读回，重新检查画布、页数、越界、文本重叠和 closing slide。
+- root / leaf role 是否完整。
+- 每个 leaf 是否有 [svg-protocol.md](svg-protocol.md) 中列出的几何必填属性。
+- 几何属性和 transform 参数是否只使用数字或 `px`。
+- `path d` 是否只包含 `M/L/H/V/C/Q/Z`。
+- 文本是否截断、重叠或贴边。
+- 内容是否在 safe area 内，关键图例和外框是否对齐。
+- 相邻页面是否明显换版式。
+- 每页是否有明确 takeaway；高密度页的视觉结构是否承载信息，而不只是装饰。
+- 内容页是否避免了“大标题 + 大图 + 2-3 个短 chip”的低信息布局。
+- 自称数据、排名、客户、引用、logo 或案例时，是否有来源；没有来源时是否改为定性或假设表达。
+- 图片是否已变成本地 `@./path` 或 file token，不能保留 http(s) / data URL。
+
+验证记录建议写回 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json` 的 `readback_verification` 字段，并在最终回复中简述：
+
+```text
+验证记录：
+- Preflight：N/N SVG 通过 root/role/geometry/path/image/bbox 检查。
+- Dry-run：已确认 create presentation + N 次 /slide。
+- Readback：实际页数 N / 预期 N；未发现空白页、破图或缺失 closing slide。
+- 版式：检查 safe area、文本重叠、越界和相邻页版式变化。
+- 资产：图片均为本地 @path 自动上传或 file token，无 http(s)/data URL。
+```
+
+## 错误处理
+
+任一页失败时，错误会包含：
+
+- `xml_presentation_id`
+- 失败页序号
+- 已成功页数
+- 已创建的 `slide_ids`
+
+如果服务端 detail 带有 `SVGLIDE_ERROR_JSON:` marker，CLI 会提取并在错误中展示 `svglide_error`，用于定位 `type`、`page_index`、`tag_name`、`element_id`、`role` 和 `hint`。
+
+失败后不要假设没有创建任何资源。先把恢复状态写回 plan 的 `recovery` 字段：
+
+```json
+{
+  "xml_presentation_id": "slides...",
+  "failed_page": 3,
+  "failed_svg_file": ".lark-slides/plan/<deck-id>/pages/page-003.svg",
+  "successful_slide_ids": ["abc", "def"],
+  "svglide_error": {"type": "svg_validation_error", "tag_name": "foreignObject"},
+  "next_action": "fix source SVG and rerun preflight before retry"
+}
+```
+
+恢复顺序：
+
+1. 本地 preflight 已失败：修对应 SVG 文件，不要调用 live API。
+2. live 添加页失败且带 `svglide_error`：按 `type` / `tag_name` / `hint` 收敛 SVG 子集，例如降级复杂 filter、path、CSS 或文本结构。
+3. plain XML 在同一路由成功但 SVG 失败：优先确认目标 server lane 是否部署了 SVGlide parser，不要盲目重写整套 deck。
+4. 已创建 presentation 或部分页面时，默认保留现场并回读确认；是否删除空 presentation 必须单独由用户确认。
+
+### 编辑已创建的 SVG deck
+
+SVG deck 后续编辑走双轨，不承诺 source SVG id 能稳定映射到 readback XML block id：
+
+| 修改类型 | 推荐路径 | 说明 |
+|----------|----------|------|
+| 小改标题、文本、图片或坐标 | `xml_presentation.slide.get` 读回 XML -> 找当前 block_id -> `slides +replace-slide` | 使用转换后的 XML 做块级编辑，页序和 slide_id 不变 |
+| 大幅换版式、重画图表、调整视觉系统 | 修改 source SVG -> 重新 preflight -> 重新创建或替换目标页 | 保持 SVG 的视觉表达优势，避免在转换后 XML 上手搓复杂 SVG 结构 |
+| 无法定位 block_id 或映射不可信 | 回 source SVG 修改 | 不生成 `edit-map.json`，除非服务端或转换结果能证明 source id 可稳定保留 |
+
+小改前必须重新 `slide.get` 拿最新 block id 和 revision；大改后必须更新同一个 `.lark-slides/plan/<deck-or-task-id>/slide_plan.json`，保持 plan、SVG 文件、创建结果和验证记录一致。

skills/lark-slides/references/svg-protocol.md

@@ -0,0 +1,114 @@
+# SVGlide SVG Protocol
+
+最小模板：
+
+```xml
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:slide="https://slides.bytedance.com/ns"
+  slide:role="slide"
+  width="960"
+  height="540"
+  viewBox="0 0 960 540"
+>
+  <rect slide:role="shape" x="60" y="60" width="240" height="135" fill="#E8EEF8" />
+  <foreignObject slide:role="shape" slide:shape-type="text" x="90" y="98" width="240" height="60">
+    <div xmlns="http://www.w3.org/1999/xhtml" style="font-size:20px;font-weight:700;color:#1F2937;line-height:1.2">SVGlide</div>
+  </foreignObject>
+  <image slide:role="image" href="@./hero.png" x="390" y="60" width="240" height="135" />
+</svg>
+```
+
+## 必须满足
+
+- root 必须是非 namespaced 的 `<svg>`，不能是 `<svg:svg>`。
+- root 必须声明 `xmlns:slide="https://slides.bytedance.com/ns"`。
+- root 必须包含 `slide:role="slide"`。
+- 可渲染元素必须有对应 `slide:role`：shape 使用 `slide:role="shape"`，图片使用 `slide:role="image"`。
+- `<g>` 和嵌套 `<svg>` 可以作为容器，用于继承样式和 transform；容器内真正渲染的元素仍必须声明 `slide:role`。
+- `slide:role="shape"` 目前只支持 `rect`、`ellipse`、`circle`、`line`、`path`、`foreignObject`。
+- 文本使用文本型 shape：`<foreignObject slide:role="shape" slide:shape-type="text">...</foreignObject>`。
+- 图片使用 `<image slide:role="image" href="file_token">`；本地占位符写成 `href="@./image.png"`。
+- `<defs>` 和 `<style>` 会被服务端解析/跳过输出；支持嵌套在 `g` / 嵌套 `svg` 容器中。
+- CLI 注入的 transport metadata `<metadata data-svglide-assets="true">` 会被跳过输出但用于传输图片元数据。
+
+## 坐标系与画布
+
+- 当前 `slides +create-svg` 新建的 Lark Slides presentation 回读画布通常是 `960 x 540`。生成 SVG deck 时默认使用 `width="960" height="540" viewBox="0 0 960 540"`，不要默认用 `1280 x 720`。
+- 服务端不会保证把 `viewBox="0 0 1280 720"` 自动缩放到 `960 x 540`。如果用 1280x720 设计，必须在提交前整体换算到目标画布，或在回读 XML 后验证没有越界。
+- 生成时为所有主体元素预留安全区，建议 `x >= 48`、`y >= 40`、`right <= 912`、`bottom <= 500`。全屏背景可以铺满 `0,0,960,540`，但主体文字、图表和卡片仍应留在安全区内。
+- 回读 XML 后必须检查主体元素边界：非背景元素的 `topLeftX + width <= 960` 且 `topLeftY + height <= 540`。任何页面越界都视为生成失败，需要重排或缩放后重建。
+
+## 几何必填属性
+
+SVGlide leaf shape 必须显式写出服务端建模所需的几何属性，不依赖 SVG 默认值。缺失这些属性通常会被服务端包装成 `shape missing required attribute` 或 generic invalid param。
+
+| Element | Required attributes |
+|---------|---------------------|
+| `rect slide:role="shape"` | `x`, `y`, `width`, `height` |
+| `foreignObject slide:role="shape" slide:shape-type="text"` | `x`, `y`, `width`, `height` |
+| `image slide:role="image"` | `href`, `x`, `y`, `width`, `height` |
+| `circle slide:role="shape"` | `cx`, `cy`, `r` |
+| `ellipse slide:role="shape"` | `cx`, `cy`, `rx`, `ry` |
+| `line slide:role="shape"` | `x1`, `y1`, `x2`, `y2` |
+| `path slide:role="shape"` | `d` |
+
+这些属性即使取值为 `0` 也要写出来。例如背景图必须写成：
+
+```xml
+<image slide:role="image" href="@./background.jpg" x="0" y="0" width="960" height="540" />
+```
+
+CLI 会把这些几何属性作为生成质量门禁：值只能是数字或 `px` 长度，例如 `0`、`1280`、`320.5`、`80px`。不要使用 `%`、`em`、`rem`、`calc(...)` 或省略单位后依赖 SVG 默认值。服务端可能会对部分非法几何值降级为 `0` 并给 warning，但正式生成应在 CLI 侧提前修正。
+
+## 当前支持的 SVG 子集
+
+- Shape: `rect`、`ellipse`、`circle`、`line`、`path`、`foreignObject`。
+- Container: `g`、嵌套 `svg`。
+- Definitions: `defs` 内的 `linearGradient`、`radialGradient`、`filter/feDropShadow`；支持嵌套 `defs` 和 gradient `href` / `xlink:href` 继承。
+- CSS: tag、`.class`、`#id`、`.a.b`、`tag.class` 等简单 selector；支持 specificity 和 source order；复杂 selector、media query、伪类会被忽略。
+- Paint: `fill`、`stroke`、`stroke-width`、`opacity`、`fill-opacity`、`stroke-opacity`、`stroke-dasharray`、`stroke-linecap`、`stroke-linejoin`。
+- Gradient: `stop-color` / `stop-opacity` 可来自属性、inline style 或 CSS；`gradientTransform`、`spreadMethod`、focal 点等复杂能力会被近似或忽略。
+- Effects: 支持 `filter="url(#...)"` 指向的 `feDropShadow`、CSS `filter: drop-shadow(...)`、以及首层 `box-shadow`；多层 shadow、spread、inset 会被近似或忽略。
+- Transform: `translate`、`scale`、`matrix`、`rotate`；transform 参数应写数字或 `px`，复杂 transform 会被近似或忽略。
+- Path: 只使用 `M/L/H/V/C/Q/Z`；CLI 会拒绝 arc `A`、smooth curve `S/T` 和其他未知命令。
+- Text: `foreignObject slide:shape-type="text"` 内支持常见 XHTML 文本标签、`br` 和基础文字样式。
+
+文本样式应使用 parser 友好的显式 CSS 属性，例如 `font-size`、`font-weight`、`font-family`、`color`、`line-height`、`text-align`、`letter-spacing`。不要依赖 `font:` shorthand、复杂 flex 布局或浏览器默认样式来表达关键字号、加粗和行距；这些在转换到 SXSD/XML 时可能降级为默认样式。
+
+## 不支持
+
+- 不要把普通 SVG 直接交给 `+create-svg`，CLI 不会自动补齐 SVGlide 协议。
+- 不支持缺少 role 的可渲染元素，例如 `<rect .../>`；必须写成 `<rect slide:role="shape" .../>`。
+- 不要把 `<g>` 当作可渲染 shape；`<g>` 只是容器，实际 `rect`、`path`、`foreignObject`、`image` 等子元素仍需各自声明 `slide:role`。
+- 不支持根级 `<text slide:role="text">`；用 `foreignObject + slide:shape-type="text"`。
+- 不要在 `<image>` 上保留 `xlink:href`；CLI 会统一输出 canonical `href`。
+- 不要用 http(s) 或 data URL 外链图片；先下载到本地并让 CLI 上传，或用 `--assets` 提供已上传 file token。
+- `slides +create-svg` MVP 不支持指定 `beforeSlideBlockID` 插入到某一页前；它创建新 presentation 后按 `--file` 顺序追加。
+
+这些能力依赖 slide server SVGlide parser 新版本。如果 BOE/线上未部署对应 server 分支，CLI 放行后仍可能收到服务端 `SVGLIDE_ERROR_JSON` 或 generic invalid param。
+
+## 图片与 Metadata
+
+SVG deck 默认应使用真实图片资产，不要为了规避上传链路而全程用纯矢量 shape 冒充配图。宣传、产品、品牌、案例和视觉展示型 deck 至少应包含封面/半出血主视觉/案例场景/产品截图等图片使用；只有用户明确要求纯矢量，或图片获取、上传链路不可用时，才退回纯矢量方案，并在结果中说明原因。
+
+图片资产还必须规避版权风险：只使用用户提供、公司/项目自有、明确可商用授权图库，或授权条件清晰的 AI 生成资产。推荐来源包括 Unsplash、Pexels、Pixabay、Openverse、Wikimedia Commons、The Met Open Access、Smithsonian Open Access 和 NASA Image and Video Library，但每张图都必须检查具体 license。不要使用版权状态不明的搜索图片、新闻配图、第三方 logo、竞品官网截图或素材站预览图。生成 deck 时应在素材清单或 README 中记录图片来源、授权/许可类型、下载 URL 或生成方式、是否需要署名；无法确认授权时不得使用该图片。
+
+`slides +create-svg` 会把 `<image href="@./image.png">` 上传为 file token，并注入：
+
+```xml
+<metadata data-svglide-assets="true">
+  <img src="boxcn..." />
+</metadata>
+```
+
+metadata 只用于让现有服务端链路生成 `FileMetaMap`。如果使用 `--assets assets.json` 传入预上传 token，CLI 也会按同样规则替换和注入。
+
+`assets.json` 格式：
+
+```json
+{
+  "@./image.png": "boxcn...",
+  "./other.png": "boxcn..."
+}
+```

skills/lark-slides/scripts/svg_preflight.py

@@ -0,0 +1,486 @@
+#!/usr/bin/env python3
+# Copyright (c) 2026 Lark Technologies Pte. Ltd.
+# SPDX-License-Identifier: MIT
+
+from __future__ import annotations
+
+import json
+import re
+import sys
+import xml.etree.ElementTree as ET
+from pathlib import Path
+from typing import Any
+
+
+SLIDE_NS = "https://slides.bytedance.com/ns"
+XLINK_NS = "http://www.w3.org/1999/xlink"
+SVG_NS = "http://www.w3.org/2000/svg"
+CANVAS_WIDTH = 960.0
+CANVAS_HEIGHT = 540.0
+SAFE_AREA = {"x": 48.0, "y": 40.0, "width": 864.0, "height": 460.0}
+
+NUMBER_RE = re.compile(r"^[-+]?(?:\d+\.?\d*|\.\d+)(?:[eE][-+]?\d+)?(?:px)?$")
+PATH_NUMBER_RE = re.compile(r"[-+]?(?:\d+\.?\d*|\.\d+)(?:[eE][-+]?\d+)?")
+FONT_SHORTHAND_RE = re.compile(r"(^|;)\s*font\s*:", re.IGNORECASE)
+
+SUPPORTED_SHAPES = {"rect", "ellipse", "circle", "line", "path", "foreignObject"}
+RENDERABLE_TAGS = SUPPORTED_SHAPES | {"image", "text", "polygon", "polyline"}
+IGNORED_SUBTREES = {"defs", "style"}
+
+
+class SvgPreflightError(Exception):
+    pass
+
+
+def fail(message: str) -> None:
+    raise SvgPreflightError(message)
+
+
+def parse_args(argv: list[str]) -> dict[str, Any]:
+    inputs: list[str] = []
+    index = 0
+    while index < len(argv):
+        token = argv[index]
+        if token in {"--input", "-i"}:
+            if index + 1 >= len(argv):
+                fail(f"{token} requires a file path")
+            inputs.append(argv[index + 1])
+            index += 2
+            continue
+        if token.startswith("--"):
+            fail(f"unexpected argument: {token}")
+        inputs.append(token)
+        index += 1
+    if not inputs:
+        fail("at least one --input <svg-file> is required")
+    return {"inputs": inputs}
+
+
+def local_name(tag: str) -> str:
+    return tag.rsplit("}", 1)[-1] if tag.startswith("{") else tag
+
+
+def get_attr(element: ET.Element, name: str, namespace: str | None = None) -> str | None:
+    if namespace:
+        value = element.attrib.get(f"{{{namespace}}}{name}")
+        if value is not None:
+            return value
+    value = element.attrib.get(name)
+    if value is not None:
+        return value
+    for key, candidate in element.attrib.items():
+        if key.endswith("}" + name):
+            return candidate
+    return None
+
+
+def svg_role(element: ET.Element) -> str | None:
+    return get_attr(element, "role", SLIDE_NS)
+
+
+def svg_shape_type(element: ET.Element) -> str | None:
+    return get_attr(element, "shape-type", SLIDE_NS)
+
+
+def parse_number(value: str | None) -> float | None:
+    if value is None:
+        return None
+    value = value.strip()
+    if not NUMBER_RE.match(value):
+        return None
+    if value.lower().endswith("px"):
+        value = value[:-2]
+    try:
+        return float(value)
+    except ValueError:
+        return None
+
+
+def parse_required_number(element: ET.Element, name: str) -> float | None:
+    return parse_number(get_attr(element, name))
+
+
+def issue(level: str, code: str, message: str, element: ET.Element | None = None, hint: str | None = None) -> dict[str, Any]:
+    out: dict[str, Any] = {"level": level, "code": code, "message": message}
+    if element is not None:
+        elem_id = get_attr(element, "id")
+        if elem_id:
+            out["element_id"] = elem_id
+        out["tag"] = local_name(element.tag)
+    if hint:
+        out["hint"] = hint
+    return out
+
+
+def parse_viewbox(value: str | None) -> list[float] | None:
+    if value is None:
+        return None
+    parts = [part for part in re.split(r"[\s,]+", value.strip()) if part]
+    if len(parts) != 4:
+        return None
+    try:
+        return [float(part) for part in parts]
+    except ValueError:
+        return None
+
+
+def is_external_href(value: str | None) -> bool:
+    if value is None:
+        return False
+    lower = value.strip().lower()
+    return lower.startswith("http://") or lower.startswith("https://") or lower.startswith("data:")
+
+
+def href_value(element: ET.Element) -> str | None:
+    return get_attr(element, "href") or get_attr(element, "href", XLINK_NS)
+
+
+def walk_renderable(root: ET.Element) -> list[ET.Element]:
+    out: list[ET.Element] = []
+
+    def walk(element: ET.Element) -> None:
+        name = local_name(element.tag)
+        if name in IGNORED_SUBTREES:
+            return
+        if name in RENDERABLE_TAGS or name == "foreignObject" or name == "image":
+            out.append(element)
+        for child in list(element):
+            walk(child)
+
+    for child in list(root):
+        walk(child)
+    return out
+
+
+def validate_root(root: ET.Element) -> tuple[list[dict[str, Any]], float, float]:
+    issues: list[dict[str, Any]] = []
+    if local_name(root.tag) != "svg":
+        issues.append(issue("error", "root_not_svg", "root element must be <svg>"))
+    if svg_role(root) != "slide":
+        issues.append(issue("error", "missing_root_role", 'root <svg> must include slide:role="slide"', root))
+
+    width = parse_number(get_attr(root, "width"))
+    height = parse_number(get_attr(root, "height"))
+    viewbox = parse_viewbox(get_attr(root, "viewBox"))
+
+    if width != CANVAS_WIDTH or height != CANVAS_HEIGHT:
+        issues.append(
+            issue(
+                "error",
+                "root_canvas_mismatch",
+                'root must use width="960" height="540"',
+                root,
+                "Scale coordinates to the Lark Slides 960x540 canvas before calling slides +create-svg.",
+            )
+        )
+    if viewbox != [0.0, 0.0, CANVAS_WIDTH, CANVAS_HEIGHT]:
+        issues.append(
+            issue(
+                "error",
+                "root_viewbox_mismatch",
+                'root must use viewBox="0 0 960 540"',
+                root,
+                "Do not submit a 1280x720 viewBox and rely on server-side scaling.",
+            )
+        )
+
+    return issues, width or CANVAS_WIDTH, height or CANVAS_HEIGHT
+
+
+def validate_roles_and_attrs(elements: list[ET.Element]) -> list[dict[str, Any]]:
+    issues: list[dict[str, Any]] = []
+    for element in elements:
+        name = local_name(element.tag)
+        role = svg_role(element)
+        if name == "text":
+            issues.append(
+                issue(
+                    "error",
+                    "unsupported_text_element",
+                    'root-level <text> is not supported; use foreignObject slide:role="shape" slide:shape-type="text"',
+                    element,
+                )
+            )
+            continue
+        if name in {"polygon", "polyline"}:
+            issues.append(
+                issue(
+                    "error",
+                    "unsupported_shape_element",
+                    f"<{name}> is not supported by SVGlide MVP",
+                    element,
+                    "Use path with M/L/H/V/C/Q/Z commands, or use rect/line/circle/ellipse.",
+                )
+            )
+            continue
+        if name not in {"image"} | SUPPORTED_SHAPES:
+            continue
+        if role is None:
+            issues.append(issue("error", "missing_leaf_role", '<%s> must include slide:role="shape" or "image"' % name, element))
+            continue
+        if role == "shape":
+            if name not in SUPPORTED_SHAPES:
+                issues.append(issue("error", "unsupported_shape_role", f'<{name} slide:role="shape"> is not supported', element))
+                continue
+            if name == "foreignObject" and svg_shape_type(element) != "text":
+                issues.append(
+                    issue(
+                        "error",
+                        "missing_text_shape_type",
+                        '<foreignObject slide:role="shape"> must include slide:shape-type="text"',
+                        element,
+                    )
+                )
+        elif role == "image":
+            if name != "image":
+                issues.append(issue("error", "unsupported_image_role", f'<{name} slide:role="image"> is not supported', element))
+            image_href = href_value(element)
+            if not image_href:
+                issues.append(issue("error", "missing_image_href", '<image slide:role="image"> must include href', element))
+            if is_external_href(image_href):
+                issues.append(
+                    issue(
+                        "error",
+                        "external_image_href",
+                        "<image> must not use http(s) or data href",
+                        element,
+                        'Download or generate the image locally and use href="@./path", or provide a file token.',
+                    )
+                )
+        else:
+            issues.append(issue("error", "unsupported_role", f'unsupported slide:role="{role}"', element))
+    return issues
+
+
+def bbox_for_element(element: ET.Element) -> dict[str, float] | None:
+    name = local_name(element.tag)
+    if name in {"rect", "foreignObject", "image"}:
+        x = parse_required_number(element, "x")
+        y = parse_required_number(element, "y")
+        width = parse_required_number(element, "width")
+        height = parse_required_number(element, "height")
+        if None in {x, y, width, height}:
+            return None
+        return {"x": x or 0.0, "y": y or 0.0, "width": width or 0.0, "height": height or 0.0}
+    if name == "circle":
+        cx = parse_required_number(element, "cx")
+        cy = parse_required_number(element, "cy")
+        r = parse_required_number(element, "r")
+        if None in {cx, cy, r}:
+            return None
+        return {"x": (cx or 0.0) - (r or 0.0), "y": (cy or 0.0) - (r or 0.0), "width": 2 * (r or 0.0), "height": 2 * (r or 0.0)}
+    if name == "ellipse":
+        cx = parse_required_number(element, "cx")
+        cy = parse_required_number(element, "cy")
+        rx = parse_required_number(element, "rx")
+        ry = parse_required_number(element, "ry")
+        if None in {cx, cy, rx, ry}:
+            return None
+        return {"x": (cx or 0.0) - (rx or 0.0), "y": (cy or 0.0) - (ry or 0.0), "width": 2 * (rx or 0.0), "height": 2 * (ry or 0.0)}
+    if name == "line":
+        x1 = parse_required_number(element, "x1")
+        y1 = parse_required_number(element, "y1")
+        x2 = parse_required_number(element, "x2")
+        y2 = parse_required_number(element, "y2")
+        if None in {x1, y1, x2, y2}:
+            return None
+        min_x = min(x1 or 0.0, x2 or 0.0)
+        min_y = min(y1 or 0.0, y2 or 0.0)
+        return {"x": min_x, "y": min_y, "width": abs((x2 or 0.0) - (x1 or 0.0)), "height": abs((y2 or 0.0) - (y1 or 0.0))}
+    return None
+
+
+def is_background_bbox(bbox: dict[str, float], canvas_width: float, canvas_height: float) -> bool:
+    return bbox["x"] <= 0 and bbox["y"] <= 0 and bbox["x"] + bbox["width"] >= canvas_width and bbox["y"] + bbox["height"] >= canvas_height
+
+
+def bbox_outside(bbox: dict[str, float], rect: dict[str, float]) -> bool:
+    return (
+        bbox["x"] < rect["x"]
+        or bbox["y"] < rect["y"]
+        or bbox["x"] + bbox["width"] > rect["x"] + rect["width"]
+        or bbox["y"] + bbox["height"] > rect["y"] + rect["height"]
+    )
+
+
+def intersects(left: dict[str, float], right: dict[str, float]) -> bool:
+    return (
+        left["x"] < right["x"] + right["width"]
+        and left["x"] + left["width"] > right["x"]
+        and left["y"] < right["y"] + right["height"]
+        and left["y"] + left["height"] > right["y"]
+    )
+
+
+def validate_geometry(elements: list[ET.Element], canvas_width: float, canvas_height: float) -> tuple[list[dict[str, Any]], list[dict[str, Any]]]:
+    issues: list[dict[str, Any]] = []
+    text_boxes: list[dict[str, Any]] = []
+    canvas = {"x": 0.0, "y": 0.0, "width": canvas_width, "height": canvas_height}
+    for element in elements:
+        name = local_name(element.tag)
+        bbox = bbox_for_element(element)
+        if bbox is None:
+            continue
+        if is_background_bbox(bbox, canvas_width, canvas_height):
+            continue
+        if bbox_outside(bbox, canvas):
+            issues.append(
+                issue(
+                    "error",
+                    "canvas_bounds",
+                    f"<{name}> is outside the 960x540 canvas",
+                    element,
+                    "Non-background elements must fit inside the slide canvas.",
+                )
+            )
+        elif bbox_outside(bbox, SAFE_AREA):
+            issues.append(
+                issue(
+                    "warning",
+                    "safe_area",
+                    f"<{name}> is outside the recommended safe area",
+                    element,
+                    "Keep text, labels, cards, legends, and key visuals within x>=48 y>=40 right<=912 bottom<=500 unless it is an intentional full-bleed background.",
+                )
+            )
+        if name == "foreignObject" and svg_role(element) == "shape" and svg_shape_type(element) == "text":
+            text = "".join(element.itertext()).strip()
+            if text:
+                text_boxes.append({"element": element, "bbox": bbox, "text": text})
+    return issues, text_boxes
+
+
+def validate_text_overlap(text_boxes: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    issues: list[dict[str, Any]] = []
+    for left_index, left in enumerate(text_boxes):
+        for right in text_boxes[left_index + 1 :]:
+            if intersects(left["bbox"], right["bbox"]):
+                left_id = get_attr(left["element"], "id") or local_name(left["element"].tag)
+                right_id = get_attr(right["element"], "id") or local_name(right["element"].tag)
+                issues.append(
+                    {
+                        "level": "error",
+                        "code": "text_bbox_overlap",
+                        "message": f"text boxes overlap: {left_id} and {right_id}",
+                        "left_element_id": get_attr(left["element"], "id"),
+                        "right_element_id": get_attr(right["element"], "id"),
+                        "hint": "Move text boxes apart, reduce text density, or split the page into clearer layout boxes.",
+                    }
+                )
+    return issues
+
+
+def validate_styles(root: ET.Element) -> list[dict[str, Any]]:
+    issues: list[dict[str, Any]] = []
+    for element in root.iter():
+        style = get_attr(element, "style") or ""
+        if FONT_SHORTHAND_RE.search(style):
+            issues.append(
+                issue(
+                    "error",
+                    "font_shorthand",
+                    'style must not use "font:" shorthand',
+                    element,
+                    "Use explicit font-size, font-weight, font-family, color, line-height, and text-align properties.",
+                )
+            )
+    return issues
+
+
+def validate_paths(elements: list[ET.Element]) -> list[dict[str, Any]]:
+    issues: list[dict[str, Any]] = []
+    for element in elements:
+        if local_name(element.tag) != "path" or svg_role(element) != "shape":
+            continue
+        data = get_attr(element, "d") or ""
+        without_numbers = PATH_NUMBER_RE.sub("", data)
+        has_command = False
+        for char in without_numbers:
+            if char in ", \t\r\n":
+                continue
+            if char in "MLHVZCQmlhvzcq":
+                has_command = True
+                continue
+            issues.append(
+                issue(
+                    "error",
+                    "unsupported_path_command",
+                    f'unsupported path command or character "{char}"',
+                    element,
+                    "Use only M/L/H/V/C/Q/Z path commands.",
+                )
+            )
+            break
+        if not has_command:
+            issues.append(issue("error", "missing_path_command", 'path attribute "d" must include M/L/H/V/C/Q/Z commands', element))
+    return issues
+
+
+def lint_svg(svg: str, path: str = "<svg>") -> dict[str, Any]:
+    result: dict[str, Any] = {"path": path, "issues": []}
+    try:
+        root = ET.fromstring(svg)
+    except ET.ParseError as error:
+        result["issues"].append(
+            {
+                "level": "error",
+                "code": "xml_not_well_formed",
+                "message": f"SVG is not well-formed: {error}",
+                "hint": "Fix tag closure, attribute quotes, namespaces, and XML escaping before calling slides +create-svg.",
+            }
+        )
+        result["summary"] = {"error_count": 1, "warning_count": 0}
+        return result
+
+    root_issues, width, height = validate_root(root)
+    elements = walk_renderable(root)
+    role_issues = validate_roles_and_attrs(elements)
+    geometry_issues, text_boxes = validate_geometry(elements, width, height)
+    issues = root_issues + role_issues + validate_styles(root) + validate_paths(elements) + geometry_issues + validate_text_overlap(text_boxes)
+
+    result["width"] = width
+    result["height"] = height
+    result["element_count"] = len(elements)
+    result["text_box_count"] = len(text_boxes)
+    result["issues"] = issues
+    result["summary"] = {
+        "error_count": sum(1 for item in issues if item["level"] == "error"),
+        "warning_count": sum(1 for item in issues if item["level"] == "warning"),
+    }
+    if not issues:
+        result.pop("issues")
+    return result
+
+
+def lint_files(paths: list[str]) -> dict[str, Any]:
+    files: list[dict[str, Any]] = []
+    for path in paths:
+        svg = Path(path).read_text(encoding="utf-8")
+        files.append(lint_svg(svg, path))
+    return {
+        "summary": {
+            "file_count": len(files),
+            "error_count": sum(file["summary"]["error_count"] for file in files),
+            "warning_count": sum(file["summary"]["warning_count"] for file in files),
+        },
+        "files": files,
+    }
+
+
+def main(argv: list[str]) -> int:
+    try:
+        options = parse_args(argv)
+        result = lint_files(options["inputs"])
+    except SvgPreflightError as error:
+        print(f"svg_preflight: {error}", file=sys.stderr)
+        return 2
+    except OSError as error:
+        print(f"svg_preflight: {error}", file=sys.stderr)
+        return 2
+
+    print(json.dumps(result, ensure_ascii=False, indent=2))
+    return 1 if result["summary"]["error_count"] else 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main(sys.argv[1:]))

skills/lark-slides/scripts/svg_preflight_test.py

@@ -0,0 +1,97 @@
+# Copyright (c) 2026 Lark Technologies Pte. Ltd.
+# SPDX-License-Identifier: MIT
+from __future__ import annotations
+
+import unittest
+
+import svg_preflight
+
+
+VALID_SVG = """
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:slide="https://slides.bytedance.com/ns"
+     slide:role="slide"
+     width="960" height="540" viewBox="0 0 960 540">
+  <rect slide:role="shape" x="0" y="0" width="960" height="540" fill="#f8fafc" />
+  <foreignObject id="title" slide:role="shape" slide:shape-type="text" x="64" y="56" width="420" height="72">
+    <div xmlns="http://www.w3.org/1999/xhtml"
+         style="font-size:32px;font-weight:800;font-family:Arial;color:#111827;line-height:1.15;text-align:left;">
+      Strategy review
+    </div>
+  </foreignObject>
+  <image id="hero" slide:role="image" href="@./assets/hero.jpg" x="560" y="96" width="320" height="220" />
+  <path id="trend" slide:role="shape" d="M64 360 L180 330 C260 300 340 340 420 300 Q500 260 580 290" fill="none" stroke="#2563eb" />
+</svg>
+"""
+
+
+class SvgPreflightTest(unittest.TestCase):
+    def test_lint_svg_accepts_valid_svglide(self) -> None:
+        result = svg_preflight.lint_svg(VALID_SVG)
+        self.assertEqual(result["summary"]["error_count"], 0)
+        self.assertEqual(result["summary"]["warning_count"], 0)
+
+    def test_lint_svg_reports_canvas_mismatch(self) -> None:
+        result = svg_preflight.lint_svg(
+            VALID_SVG.replace('width="960" height="540" viewBox="0 0 960 540"', 'width="1280" height="720" viewBox="0 0 1280 720"')
+        )
+        codes = [issue["code"] for issue in result["issues"]]
+        self.assertIn("root_canvas_mismatch", codes)
+        self.assertIn("root_viewbox_mismatch", codes)
+        self.assertEqual(result["summary"]["error_count"], 2)
+
+    def test_lint_svg_reports_external_image_and_font_shorthand(self) -> None:
+        svg = """
+        <svg xmlns="http://www.w3.org/2000/svg"
+             xmlns:slide="https://slides.bytedance.com/ns"
+             slide:role="slide"
+             width="960" height="540" viewBox="0 0 960 540">
+          <foreignObject id="title" slide:role="shape" slide:shape-type="text" x="64" y="56" width="420" height="72">
+            <div xmlns="http://www.w3.org/1999/xhtml" style="font: 700 24px Arial;color:#111827;">Title</div>
+          </foreignObject>
+          <image id="hero" slide:role="image" href="https://example.com/hero.jpg" x="560" y="96" width="320" height="220" />
+        </svg>
+        """
+        result = svg_preflight.lint_svg(svg)
+        codes = [issue["code"] for issue in result["issues"]]
+        self.assertIn("external_image_href", codes)
+        self.assertIn("font_shorthand", codes)
+
+    def test_lint_svg_reports_canvas_error_and_safe_area_warning(self) -> None:
+        svg = """
+        <svg xmlns="http://www.w3.org/2000/svg"
+             xmlns:slide="https://slides.bytedance.com/ns"
+             slide:role="slide"
+             width="960" height="540" viewBox="0 0 960 540">
+          <rect id="badge" slide:role="shape" x="12" y="20" width="80" height="40" />
+          <rect id="overflow" slide:role="shape" x="920" y="500" width="120" height="80" />
+        </svg>
+        """
+        result = svg_preflight.lint_svg(svg)
+        codes = [issue["code"] for issue in result["issues"]]
+        self.assertIn("safe_area", codes)
+        self.assertIn("canvas_bounds", codes)
+        self.assertEqual(result["summary"]["error_count"], 1)
+        self.assertEqual(result["summary"]["warning_count"], 1)
+
+    def test_lint_svg_reports_text_bbox_overlap(self) -> None:
+        svg = """
+        <svg xmlns="http://www.w3.org/2000/svg"
+             xmlns:slide="https://slides.bytedance.com/ns"
+             slide:role="slide"
+             width="960" height="540" viewBox="0 0 960 540">
+          <foreignObject id="a" slide:role="shape" slide:shape-type="text" x="80" y="80" width="240" height="80">
+            <div xmlns="http://www.w3.org/1999/xhtml" style="font-size:24px;font-weight:700;color:#111;">A</div>
+          </foreignObject>
+          <foreignObject id="b" slide:role="shape" slide:shape-type="text" x="120" y="100" width="240" height="80">
+            <div xmlns="http://www.w3.org/1999/xhtml" style="font-size:18px;font-weight:400;color:#111;">B</div>
+          </foreignObject>
+        </svg>
+        """
+        result = svg_preflight.lint_svg(svg)
+        self.assertEqual(result["summary"]["error_count"], 1)
+        self.assertEqual(result["issues"][0]["code"], "text_bbox_overlap")
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/cli_e2e/slides/coverage.md

@@ -1,17 +1,25 @@
 # Slides CLI E2E Coverage
 
 ## Metrics
-- Denominator: 2 leaf commands
-- Covered: 1
+- Denominator: 4 leaf commands
+- Covered: 2
 - Coverage: 50.0%
 
 ## Summary
 - TestSlides_CreateWorkflowAsUser: proves the user slides workflow through `create presentation with slide as user` and `get created presentation xml as user`; creates a fresh presentation, asserts returned IDs, then reads back the XML content to prove the title and slide body persisted.
+- TestSlidesCreateSVGDryRunRequestShape: locks the `slides +create-svg --dry-run` request chain and recursive SVGlide validation, including `g` containers, geometry-required leaves, `px` geometry, nested defs/filter, shadow style preservation, and `foreignObject` XHTML `<br />`.
+- TestSlidesCreateSVGDryRunRejectsMissingRequiredAttribute: proves CLI blocks leaf shapes that would otherwise reach the server as `shape missing required attribute`.
+- TestSlidesCreateSVGDryRunRejectsInvalidNumericGeometry: proves CLI blocks non-absolute geometry before issuing API calls.
+- TestSlidesCreateSVGDryRunRejectsUnsupportedPathCommand: proves CLI blocks unsupported path commands before issuing API calls.
+- TestSlidesCreateSVGWorkflowAsUser: opt-in live workflow for `slides +create-svg` (`LARKSUITE_CLI_RUN_SVGLIDE_LIVE=1`); creates a two-page SVG deck as user, asserts returned page count and IDs, then reads the presentation back.
 - Blocked area: `slides +media-upload` is still uncovered because it needs a deterministic local image fixture plus XML follow-up proof that is separate from the base create/read workflow.
+- Blocked area: `slides +replace-slide` has focused unit coverage but no E2E workflow yet.
 
 ## Command Table
 
 | Status | Cmd | Type | Testcase | Key parameter shapes | Notes / uncovered reason |
 | --- | --- | --- | --- | --- | --- |
 | ✓ | slides +create | shortcut | slides_create_workflow_test.go::TestSlides_CreateWorkflowAsUser/create presentation with slide as user | `--title`; `--slides ["<slide ...>"]` | read back through raw slides API to prove persisted XML |
+| ✓ | slides +create-svg | shortcut | slides_create_svg_dryrun_test.go::TestSlidesCreateSVGDryRunRequestShape; slides_create_svg_dryrun_test.go::TestSlidesCreateSVGDryRunRejectsMissingChildRole; slides_create_svg_dryrun_test.go::TestSlidesCreateSVGDryRunRejectsMissingRequiredAttribute; slides_create_svg_dryrun_test.go::TestSlidesCreateSVGDryRunRejectsInvalidNumericGeometry; slides_create_svg_dryrun_test.go::TestSlidesCreateSVGDryRunRejectsUnsupportedPathCommand; slides_create_svg_live_test.go::TestSlidesCreateSVGWorkflowAsUser | repeated `--file`; `--title`; `--dry-run` | dry-run proves existing `/slide` route, `slide.content`, recursive SVGlide validation, server-known hard failures, numeric geometry gates, and path command gates before API call; live is opt-in and depends on the target server lane containing the updated SVGlide parser |
 | ✕ | slides +media-upload | shortcut |  | none | needs a stable local image fixture plus follow-up slide XML proof |
+| ✕ | slides +replace-slide | shortcut |  | none | unit-covered shortcut; E2E workflow still pending |

tests/cli_e2e/slides/slides_create_svg_dryrun_test.go

@@ -0,0 +1,159 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package slides
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	clie2e "github.com/larksuite/cli/tests/cli_e2e"
+	"github.com/stretchr/testify/require"
+	"github.com/tidwall/gjson"
+)
+
+func setSlidesDryRunEnv(t *testing.T) {
+	t.Helper()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	t.Setenv("LARKSUITE_CLI_APP_ID", "app")
+	t.Setenv("LARKSUITE_CLI_APP_SECRET", "secret")
+	t.Setenv("LARKSUITE_CLI_BRAND", "feishu")
+}
+
+func TestSlidesCreateSVGDryRunRequestShape(t *testing.T) {
+	setSlidesDryRunEnv(t)
+
+	dir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "page1.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" width="1280" height="720" viewBox="0 0 1280 720"><style>.primary{fill:#123456;stroke:#654321;stroke-width:2px;filter:drop-shadow(2px 4px 8px rgba(0,0,0,.2))}</style><g><defs><filter id="shadow"><feDropShadow dx="2" dy="3" stdDeviation="5" flood-color="#000" flood-opacity=".25"/></filter></defs></g><g transform="translate(20 30)"><rect slide:role="shape" class="primary" x="0" y="0" width="320px" height="180px" filter="url(#shadow)"/></g></svg>`), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "page2.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><foreignObject slide:role="shape" slide:shape-type="text" x="80" y="80" width="320" height="80"><div xmlns="http://www.w3.org/1999/xhtml">two<br />lines</div></foreignObject></svg>`), 0o644))
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"slides", "+create-svg",
+			"--file", "page1.svg",
+			"--file", "page2.svg",
+			"--title", "Dry SVG",
+			"--dry-run",
+		},
+		DefaultAs: "user",
+		WorkDir:   dir,
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 0)
+
+	out := result.Stdout
+	require.Equal(t, "POST", gjson.Get(out, "api.0.method").String(), "stdout:\n%s", out)
+	require.Equal(t, "/open-apis/slides_ai/v1/xml_presentations", gjson.Get(out, "api.0.url").String(), "stdout:\n%s", out)
+	require.Equal(t, "POST", gjson.Get(out, "api.1.method").String(), "stdout:\n%s", out)
+	require.Equal(t, "/open-apis/slides_ai/v1/xml_presentations/<xml_presentation_id>/slide", gjson.Get(out, "api.1.url").String(), "stdout:\n%s", out)
+	require.Equal(t, "POST", gjson.Get(out, "api.2.method").String(), "stdout:\n%s", out)
+	require.Equal(t, "/open-apis/slides_ai/v1/xml_presentations/<xml_presentation_id>/slide", gjson.Get(out, "api.2.url").String(), "stdout:\n%s", out)
+	require.Contains(t, gjson.Get(out, "api.1.body.slide.content").String(), `<rect slide:role="shape"`, "stdout:\n%s", out)
+	require.Contains(t, gjson.Get(out, "api.1.body.slide.content").String(), `<g transform="translate(20 30)">`, "stdout:\n%s", out)
+	require.Contains(t, gjson.Get(out, "api.1.body.slide.content").String(), `<style>.primary`, "stdout:\n%s", out)
+	require.Contains(t, gjson.Get(out, "api.1.body.slide.content").String(), `<feDropShadow`, "stdout:\n%s", out)
+	require.Contains(t, gjson.Get(out, "api.2.body.slide.content").String(), `slide:shape-type="text"`, "stdout:\n%s", out)
+	require.Contains(t, gjson.Get(out, "api.2.body.slide.content").String(), `<br />`, "stdout:\n%s", out)
+}
+
+func TestSlidesCreateSVGDryRunRejectsMissingChildRole(t *testing.T) {
+	setSlidesDryRunEnv(t)
+
+	dir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "bad.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><rect x="80" y="80" width="320" height="180"/></svg>`), 0o644))
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"slides", "+create-svg",
+			"--file", "bad.svg",
+			"--dry-run",
+		},
+		DefaultAs: "user",
+		WorkDir:   dir,
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 0)
+	require.Empty(t, gjson.Get(result.Stdout, "api").Array(), "stdout:\n%s", result.Stdout)
+	require.Contains(t, gjson.Get(result.Stdout, "error").String(), `<rect> must include slide:role="shape" or slide:role="image"`)
+}
+
+func TestSlidesCreateSVGDryRunRejectsMissingRequiredAttribute(t *testing.T) {
+	setSlidesDryRunEnv(t)
+
+	dir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "bad.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><rect slide:role="shape" x="80" y="80" height="180"/></svg>`), 0o644))
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"slides", "+create-svg",
+			"--file", "bad.svg",
+			"--dry-run",
+		},
+		DefaultAs: "user",
+		WorkDir:   dir,
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 0)
+	require.Empty(t, gjson.Get(result.Stdout, "api").Array(), "stdout:\n%s", result.Stdout)
+	require.Contains(t, gjson.Get(result.Stdout, "error").String(), `<rect slide:role="shape"> missing required attribute "width"`)
+}
+
+func TestSlidesCreateSVGDryRunRejectsInvalidNumericGeometry(t *testing.T) {
+	setSlidesDryRunEnv(t)
+
+	dir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "bad.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><rect slide:role="shape" x="80" y="80" width="50%" height="180"/></svg>`), 0o644))
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"slides", "+create-svg",
+			"--file", "bad.svg",
+			"--dry-run",
+		},
+		DefaultAs: "user",
+		WorkDir:   dir,
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 0)
+	require.Empty(t, gjson.Get(result.Stdout, "api").Array(), "stdout:\n%s", result.Stdout)
+	require.Contains(t, gjson.Get(result.Stdout, "error").String(), `attribute "width" must be a number or px length`)
+}
+
+func TestSlidesCreateSVGDryRunRejectsUnsupportedPathCommand(t *testing.T) {
+	setSlidesDryRunEnv(t)
+
+	dir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "bad.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><path slide:role="shape" d="M0 0 A10 10 0 0 1 20 20"/></svg>`), 0o644))
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"slides", "+create-svg",
+			"--file", "bad.svg",
+			"--dry-run",
+		},
+		DefaultAs: "user",
+		WorkDir:   dir,
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 0)
+	require.Empty(t, gjson.Get(result.Stdout, "api").Array(), "stdout:\n%s", result.Stdout)
+	require.Contains(t, gjson.Get(result.Stdout, "error").String(), `unsupported path command or character "A"`)
+}

tests/cli_e2e/slides/slides_create_svg_live_test.go

@@ -0,0 +1,115 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package slides
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	clie2e "github.com/larksuite/cli/tests/cli_e2e"
+	"github.com/stretchr/testify/require"
+	"github.com/tidwall/gjson"
+)
+
+func TestSlidesCreateSVGWorkflowAsUser(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
+	t.Cleanup(cancel)
+
+	if os.Getenv("LARKSUITE_CLI_RUN_SVGLIDE_LIVE") != "1" {
+		t.Skip("set LARKSUITE_CLI_RUN_SVGLIDE_LIVE=1 to run the live SVGlide service contract test")
+	}
+	clie2e.SkipWithoutUserToken(t)
+
+	dir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "page1.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" width="1280" height="720" viewBox="0 0 1280 720"><g fill="#E8EEF8" transform="translate(80 80)"><rect slide:role="shape" x="0" y="0" width="360" height="180"/></g></svg>`), 0o644))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "page2.svg"), []byte(`<svg xmlns="http://www.w3.org/2000/svg" xmlns:slide="https://slides.bytedance.com/ns" slide:role="slide" viewBox="0 0 1280 720"><foreignObject slide:role="shape" slide:shape-type="text" x="120" y="120" width="420" height="100"><p xmlns="http://www.w3.org/1999/xhtml">SVGlide live E2E</p></foreignObject></svg>`), 0o644))
+
+	parentT := t
+	title := "svglide-e2e-" + clie2e.GenerateSuffix()
+	var presentationID string
+
+	t.Run("create SVG deck as user", func(t *testing.T) {
+		result, err := clie2e.RunCmd(ctx, clie2e.Request{
+			Args: []string{
+				"slides", "+create-svg",
+				"--file", "page1.svg",
+				"--file", "page2.svg",
+				"--title", title,
+			},
+			DefaultAs: "user",
+			WorkDir:   dir,
+		})
+		require.NoError(t, err)
+		if result.ExitCode != 0 {
+			if created := extractSVGlideFailurePresentationID(result.Stderr); created != "" {
+				presentationID = created
+				registerSlidesCleanup(parentT, presentationID)
+			}
+		}
+		result.AssertExitCode(t, 0)
+		result.AssertStdoutStatus(t, true)
+
+		presentationID = gjson.Get(result.Stdout, "data.xml_presentation_id").String()
+		require.NotEmpty(t, presentationID, "stdout:\n%s", result.Stdout)
+		require.Equal(t, title, gjson.Get(result.Stdout, "data.title").String(), "stdout:\n%s", result.Stdout)
+		require.Equal(t, int64(2), gjson.Get(result.Stdout, "data.slides_added").Int(), "stdout:\n%s", result.Stdout)
+		require.Len(t, gjson.Get(result.Stdout, "data.slide_ids").Array(), 2, "stdout:\n%s", result.Stdout)
+
+		registerSlidesCleanup(parentT, presentationID)
+	})
+
+	t.Run("read back SVG-created presentation as user", func(t *testing.T) {
+		require.NotEmpty(t, presentationID, "presentation should be created before readback")
+
+		result, err := clie2e.RunCmd(ctx, clie2e.Request{
+			Args:      []string{"api", "get", "/open-apis/slides_ai/v1/xml_presentations/" + presentationID},
+			DefaultAs: "user",
+			Params:    map[string]any{"revision_id": -1},
+		})
+		require.NoError(t, err)
+		result.AssertExitCode(t, 0)
+		result.AssertStdoutStatus(t, 0)
+
+		require.Equal(t, presentationID, gjson.Get(result.Stdout, "data.xml_presentation.presentation_id").String(), "stdout:\n%s", result.Stdout)
+		content := gjson.Get(result.Stdout, "data.xml_presentation.content").String()
+		require.Contains(t, content, "<title>"+title+"</title>", "stdout:\n%s", result.Stdout)
+	})
+}
+
+func registerSlidesCleanup(t *testing.T, presentationID string) {
+	t.Helper()
+	t.Cleanup(func() {
+		cleanupCtx, cancel := clie2e.CleanupContext()
+		defer cancel()
+
+		deleteResult, deleteErr := clie2e.RunCmd(cleanupCtx, clie2e.Request{
+			Args: []string{
+				"drive", "+delete",
+				"--file-token", presentationID,
+				"--type", "slides",
+				"--yes",
+			},
+			DefaultAs: "user",
+		})
+		clie2e.ReportCleanupFailure(t, "delete presentation "+presentationID, deleteResult, deleteErr)
+	})
+}
+
+func extractSVGlideFailurePresentationID(stderr string) string {
+	const marker = "presentation "
+	idx := strings.Index(stderr, marker)
+	if idx < 0 {
+		return ""
+	}
+	rest := stderr[idx+len(marker):]
+	end := strings.IndexByte(rest, ' ')
+	if end < 0 {
+		return ""
+	}
+	return strings.Trim(rest[:end], ".,;:)")
+}