docs: reorganize lark doc skill navigation

* feat: add docs im-markdown fetch format

* refactor: tune docs im-markdown conversion

* test: expand docs im-markdown conversion coverage

* refactor: simplify docs im-markdown handlers

* test: cover docs im-markdown edge cases

* fix: expand doc im markdown tag downgrades

* fix: preserve blockquote paragraph breaks

* fix: handle im markdown nested tables and urls

* docs: document im markdown skill usage

* test: cover doc im markdown fetch

* test: strengthen doc fetch error coverage

* fix: fetch doc skill typo

shortcuts/doc/docs_fetch_im_markdown.go

@@ -0,0 +1,861 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package doc
+
+import (
+	"fmt"
+	"html"
+	"net/url"
+	"regexp"
+	"strings"
+	"unicode/utf8"
+)
+
+type imMarkdownContext struct {
+	baseURL         string
+	blockquoteDepth int
+}
+
+type imMarkdownHandleFunc func(segment, inner string, attrs map[string]string, imCtx imMarkdownContext) string
+
+type imMarkdownTagHandler struct {
+	closeRE *regexp.Regexp
+	handle  imMarkdownHandleFunc
+}
+
+func registerIMMarkdownHandler(tag string, handle imMarkdownHandleFunc) {
+	imMarkdownHandlers[tag] = imMarkdownTagHandler{
+		closeRE: regexp.MustCompile(`(?is)<(/?)` + regexp.QuoteMeta(tag) + `(?:\s[^<>]*?)?\s*/?>`),
+		handle:  handle,
+	}
+}
+
+var (
+	imMarkdownTagStartRE  = regexp.MustCompile(`(?s)<([A-Za-z][A-Za-z0-9:_-]*)(?:\s[^<>]*?)?\s*/?>`)
+	imMarkdownAttrRE      = regexp.MustCompile(`([A-Za-z_:][A-Za-z0-9_:.-]*)\s*=\s*(?:"([^"]*)"|'([^']*)')`)
+	imMarkdownRowTagRE    = regexp.MustCompile(`(?is)<(/?)tr\b[^>]*?\s*/?>`)
+	imMarkdownCellTagRE   = regexp.MustCompile(`(?is)<(/?)t[dh]\b[^>]*?\s*/?>`)
+	imMarkdownCellBreakRE = regexp.MustCompile(`(?i)<br\s*/?>`)
+	imMarkdownAnyTagRE    = regexp.MustCompile(`(?s)</?([A-Za-z][A-Za-z0-9:_-]*)(?:\s[^<>]*?)?>`)
+	imMarkdownLinkRE      = regexp.MustCompile(`(?is)<a\b[^>]*\bhref=(?:"([^"]*)"|'([^']*)')[^>]*>(.*?)</a>`)
+	imMarkdownCodeBlockRE = regexp.MustCompile(`(?is)^\s*<code(?:\s[^<>]*?)?>(.*?)</code>\s*$`)
+	imMarkdownLiOpenRE    = regexp.MustCompile(`(?is)<li(?:\s[^<>]*?)?>`)
+	imMarkdownLiCloseRE   = regexp.MustCompile(`(?is)<(/?)li(?:\s[^<>]*?)?\s*/?>`)
+)
+
+var imMarkdownHandlers = map[string]imMarkdownTagHandler{}
+
+func init() {
+	registerIMMarkdownHandler("title", handleIMMarkdownTitle)
+	for level := 1; level <= 9; level++ {
+		registerIMMarkdownHandler(fmt.Sprintf("h%d", level), handleIMMarkdownHeading(level))
+	}
+	registerIMMarkdownHandler("p", handleIMMarkdownParagraph)
+	registerIMMarkdownHandler("ul", handleIMMarkdownUnorderedList)
+	registerIMMarkdownHandler("ol", handleIMMarkdownOrderedList)
+	registerIMMarkdownHandler("li", handleIMMarkdownListItem)
+	registerIMMarkdownHandler("callout", handleIMMarkdownCallout)
+	registerIMMarkdownHandler("blockquote", handleIMMarkdownBlockquote)
+	registerIMMarkdownHandler("grid", handleIMMarkdownPassthroughContainer)
+	registerIMMarkdownHandler("column", handleIMMarkdownColumn)
+	registerIMMarkdownHandler("table", handleIMMarkdownTable)
+	registerIMMarkdownHandler("colgroup", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("col", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("pre", handleIMMarkdownPre)
+	registerIMMarkdownHandler("code", handleIMMarkdownCode)
+	registerIMMarkdownHandler("latex", handleIMMarkdownLatex)
+	registerIMMarkdownHandler("hr", handleIMMarkdownHorizontalRule)
+	registerIMMarkdownHandler("img", handleIMMarkdownImage)
+	registerIMMarkdownHandler("figure", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("source", handleIMMarkdownSource)
+	registerIMMarkdownHandler("button", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("time", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("whiteboard", handleIMMarkdownInlineCode)
+	registerIMMarkdownHandler("sheet", handleIMMarkdownSheet)
+	registerIMMarkdownHandler("task", handleIMMarkdownConditionalResourceLabel("任务", "task-id", "guid", "token", "id"))
+	registerIMMarkdownHandler("chat_card", handleIMMarkdownConditionalResourceLabel("群聊卡片", "chat-id", "chat_id", "id"))
+	registerIMMarkdownHandler("bitable", handleIMMarkdownResourceLabel("多维表格"))
+	registerIMMarkdownHandler("base_refer", handleIMMarkdownResourceLabel("多维表格"))
+	registerIMMarkdownHandler("okr", handleIMMarkdownResourceLabel("OKR"))
+	registerIMMarkdownHandler("poll", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("agenda", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("folder_manager", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("wiki_catalog", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("wiki_recent_update", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("chart_refer_host_perm", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("synced_reference", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("synced-source", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("mindnote", handleIMMarkdownDiscard)
+	registerIMMarkdownHandler("bookmark", handleIMMarkdownBookmark)
+	registerIMMarkdownHandler("cite", handleIMMarkdownCite)
+	registerIMMarkdownHandler("b", handleIMMarkdownStrong)
+	registerIMMarkdownHandler("em", handleIMMarkdownEmphasis)
+	registerIMMarkdownHandler("del", handleIMMarkdownDelete)
+	registerIMMarkdownHandler("u", handleIMMarkdownPlainInline)
+	registerIMMarkdownHandler("span", handleIMMarkdownPlainInline)
+	registerIMMarkdownHandler("a", handleIMMarkdownAnchor)
+}
+
+func isIMMarkdownFetch(runtime interface{ Str(string) string }) bool {
+	return strings.TrimSpace(runtime.Str("doc-format")) == "im-markdown"
+}
+
+func applyFetchIMMarkdown(data map[string]interface{}, docInput string) {
+	doc, ok := data["document"].(map[string]interface{})
+	if !ok {
+		return
+	}
+	content, ok := doc["content"].(string)
+	if !ok {
+		return
+	}
+	doc["content"] = convertToIMMarkdown(content, newIMMarkdownContext(docInput))
+}
+
+func newIMMarkdownContext(docInput string) imMarkdownContext {
+	base := "https://larkoffice.com"
+	raw := strings.TrimSpace(docInput)
+	if extracted, ok := imMarkdownBaseURLFromInput(raw); ok {
+		base = extracted
+	}
+	return imMarkdownContext{baseURL: base}
+}
+
+func (c imMarkdownContext) withBlockquote() imMarkdownContext {
+	c.blockquoteDepth++
+	return c
+}
+
+func (c imMarkdownContext) inBlockquote() bool {
+	return c.blockquoteDepth > 0
+}
+
+// imMarkdownBaseURLFromInput keeps the tenant host from --doc when it is a URL
+// so generated doc/sheet links point back to the same tenant. parseDocumentRef
+// intentionally strips host information, so it cannot serve this formatting path.
+func imMarkdownBaseURLFromInput(raw string) (string, bool) {
+	if raw == "" {
+		return "", false
+	}
+	if u, err := url.Parse(raw); err == nil && u.Scheme != "" && u.Host != "" {
+		return u.Scheme + "://" + u.Host, true
+	}
+	for _, marker := range []string{"/docx/", "/wiki/", "/doc/"} {
+		idx := strings.Index(raw, marker)
+		if idx <= 0 {
+			continue
+		}
+		candidate := strings.Trim(raw[:idx], "/")
+		if candidate == "" {
+			continue
+		}
+		if u, err := url.Parse(candidate); err == nil && u.Scheme != "" && u.Host != "" {
+			return u.Scheme + "://" + u.Host, true
+		}
+		if u, err := url.Parse("https://" + candidate); err == nil && u.Host != "" && strings.Contains(u.Host, ".") {
+			return "https://" + u.Host, true
+		}
+	}
+	return "", false
+}
+
+func convertToIMMarkdown(content string, imCtx imMarkdownContext) string {
+	var out strings.Builder
+	for offset := 0; offset < len(content); {
+		// Scan only to the next XML-like opening tag. Plain Markdown text between
+		// registered tags is copied unchanged, so ordinary Markdown is not re-parsed.
+		loc := imMarkdownTagStartRE.FindStringSubmatchIndex(content[offset:])
+		if loc == nil {
+			out.WriteString(content[offset:])
+			break
+		}
+		start := offset + loc[0]
+		openEnd := offset + loc[1]
+		tag := strings.ToLower(content[offset+loc[2] : offset+loc[3]])
+		handler, ok := imMarkdownHandlers[tag]
+		if !ok {
+			// Unknown tags are left intact. im-markdown only downgrades tags with
+			// explicit handlers so future server output does not get guessed at.
+			out.WriteString(content[offset:openEnd])
+			offset = openEnd
+			continue
+		}
+
+		out.WriteString(content[offset:start])
+		opening := content[start:openEnd]
+		attrs := parseIMMarkdownAttrs(opening)
+		if isSelfClosingIMMarkdownTag(opening) {
+			out.WriteString(handler.handle(opening, "", attrs, imCtx))
+			offset = openEnd
+			continue
+		}
+
+		// Use the handler's precompiled close regexp to find the matching end tag.
+		// Depth tracking keeps nested same-name containers paired correctly.
+		closeStart, closeEnd, found := findIMMarkdownClosingTag(content, openEnd, handler)
+		if !found {
+			// Malformed or truncated fragments are preserved as-is from the opening
+			// tag onward; do not drop content when the XML-ish structure is incomplete.
+			out.WriteString(content[start:])
+			break
+		}
+		segment := content[start:closeEnd]
+		inner := content[openEnd:closeStart]
+		out.WriteString(handler.handle(segment, inner, attrs, imCtx))
+		offset = closeEnd
+	}
+	return out.String()
+}
+
+func findIMMarkdownClosingTag(content string, from int, handler imMarkdownTagHandler) (int, int, bool) {
+	depth := 1
+	for _, loc := range handler.closeRE.FindAllStringSubmatchIndex(content[from:], -1) {
+		start := from + loc[0]
+		end := from + loc[1]
+		token := content[start:end]
+		if loc[2] >= 0 && content[from+loc[2]:from+loc[3]] == "/" {
+			depth--
+			if depth == 0 {
+				return start, end, true
+			}
+			continue
+		}
+		if !isSelfClosingIMMarkdownTag(token) {
+			depth++
+		}
+	}
+	return 0, 0, false
+}
+
+func parseIMMarkdownAttrs(opening string) map[string]string {
+	attrs := map[string]string{}
+	for _, match := range imMarkdownAttrRE.FindAllStringSubmatch(opening, -1) {
+		value := match[2]
+		if value == "" {
+			value = match[3]
+		}
+		attrs[strings.ToLower(match[1])] = html.UnescapeString(value)
+	}
+	return attrs
+}
+
+func isSelfClosingIMMarkdownTag(tag string) bool {
+	return strings.HasSuffix(strings.TrimSpace(tag), "/>")
+}
+
+func handleIMMarkdownTitle(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	text := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	if text == "" {
+		return ""
+	}
+	return "# " + text
+}
+
+func handleIMMarkdownHeading(level int) imMarkdownHandleFunc {
+	return func(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+		text := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+		if text == "" {
+			return ""
+		}
+		markdownLevel := level
+		if markdownLevel > 6 {
+			markdownLevel = 6
+		}
+		return strings.Repeat("#", markdownLevel) + " " + text
+	}
+}
+
+func handleIMMarkdownParagraph(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	if body == "" {
+		return ""
+	}
+	if imCtx.inBlockquote() {
+		return body + "\n"
+	}
+	return body
+}
+
+func handleIMMarkdownUnorderedList(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	return convertIMMarkdownListItems(inner, false, imCtx)
+}
+
+func handleIMMarkdownOrderedList(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	return convertIMMarkdownListItems(inner, true, imCtx)
+}
+
+func handleIMMarkdownListItem(_ string, inner string, attrs map[string]string, imCtx imMarkdownContext) string {
+	prefix := "-"
+	if seq := strings.TrimSpace(attrs["seq"]); seq != "" && seq != "auto" {
+		prefix = strings.TrimSuffix(seq, ".") + "."
+	}
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	if body == "" {
+		return ""
+	}
+	return prefix + " " + indentIMMarkdownListContinuation(body) + "\n"
+}
+
+func handleIMMarkdownCallout(_ string, inner string, attrs map[string]string, imCtx imMarkdownContext) string {
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	emoji := strings.TrimSpace(attrs["emoji"])
+	if emoji != "" {
+		if body == "" {
+			body = emoji
+		} else {
+			body = emoji + " " + body
+		}
+	}
+	if body == "" {
+		return "---\n---"
+	}
+	return fmt.Sprintf("---\n%s\n---", body)
+}
+
+func handleIMMarkdownBlockquote(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx.withBlockquote()))
+	if body == "" {
+		return ""
+	}
+	lines := strings.Split(body, "\n")
+	for i, line := range lines {
+		if strings.TrimSpace(line) == "" {
+			lines[i] = ">"
+			continue
+		}
+		lines[i] = "> " + line
+	}
+	return strings.Join(lines, "\n")
+}
+
+func handleIMMarkdownPassthroughContainer(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	return strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+}
+
+func handleIMMarkdownColumn(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	if body == "" {
+		return ""
+	}
+	return body + "\n"
+}
+
+func handleIMMarkdownDiscard(_ string, _ string, _ map[string]string, _ imMarkdownContext) string {
+	return ""
+}
+
+func handleIMMarkdownInlineCode(segment string, _ string, _ map[string]string, _ imMarkdownContext) string {
+	return imMarkdownInlineCode(segment)
+}
+
+func handleIMMarkdownPre(_ string, inner string, attrs map[string]string, _ imMarkdownContext) string {
+	lang := strings.TrimSpace(attrs["lang"])
+	code := strings.TrimSpace(inner)
+	if match := imMarkdownCodeBlockRE.FindStringSubmatch(code); match != nil {
+		code = match[1]
+	}
+	return imMarkdownFencedCode(html.UnescapeString(code), lang)
+}
+
+func handleIMMarkdownCode(_ string, inner string, _ map[string]string, _ imMarkdownContext) string {
+	return imMarkdownInlineCode(markdownPlainText(inner))
+}
+
+func handleIMMarkdownLatex(_ string, inner string, _ map[string]string, _ imMarkdownContext) string {
+	expr := strings.TrimSpace(markdownPlainText(inner))
+	if expr == "" {
+		return ""
+	}
+	return "$" + strings.ReplaceAll(expr, "$", `\$`) + "$"
+}
+
+func handleIMMarkdownHorizontalRule(_ string, _ string, _ map[string]string, _ imMarkdownContext) string {
+	return "---"
+}
+
+func handleIMMarkdownImage(_ string, _ string, attrs map[string]string, _ imMarkdownContext) string {
+	href := firstNonEmpty(attrs["href"], attrs["src"], attrs["url"])
+	if href == "" {
+		return ""
+	}
+	alt := firstNonEmpty(attrs["alt"], attrs["name"], attrs["title"])
+	return fmt.Sprintf("![%s](%s)", escapeMarkdownLinkText(alt), escapeMarkdownLinkDestination(href))
+}
+
+func handleIMMarkdownSource(_ string, _ string, attrs map[string]string, _ imMarkdownContext) string {
+	name := strings.TrimSpace(attrs["name"])
+	if name == "" {
+		return ""
+	}
+	return imMarkdownInlineCode(name)
+}
+
+func handleIMMarkdownResourceLabel(label string) imMarkdownHandleFunc {
+	return func(_ string, _ string, _ map[string]string, _ imMarkdownContext) string {
+		return imMarkdownInlineCode(label)
+	}
+}
+
+func handleIMMarkdownConditionalResourceLabel(label string, attrNames ...string) imMarkdownHandleFunc {
+	return func(_ string, _ string, attrs map[string]string, _ imMarkdownContext) string {
+		for _, attrName := range attrNames {
+			if strings.TrimSpace(attrs[attrName]) != "" {
+				return imMarkdownInlineCode(label)
+			}
+		}
+		return ""
+	}
+}
+
+func handleIMMarkdownSheet(segment string, _ string, attrs map[string]string, imCtx imMarkdownContext) string {
+	token := strings.TrimSpace(attrs["token"])
+	if token == "" {
+		return imMarkdownInlineCode(segment)
+	}
+	label := "sheet"
+	if sheetID := strings.TrimSpace(attrs["sheet-id"]); sheetID != "" {
+		label = "sheet " + sheetID
+	}
+	return markdownLink(label, strings.TrimRight(imCtx.baseURL, "/")+"/sheets/"+token)
+}
+
+func handleIMMarkdownBookmark(segment string, inner string, attrs map[string]string, imCtx imMarkdownContext) string {
+	href := strings.TrimSpace(attrs["href"])
+	name := firstNonEmpty(attrs["name"], attrs["title"], markdownLinkLabelText(convertToIMMarkdown(inner, imCtx)), href)
+	if href == "" {
+		return name
+	}
+	return markdownLink(name, href)
+}
+
+func handleIMMarkdownStrong(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	if body == "" {
+		return ""
+	}
+	return "**" + body + "**"
+}
+
+func handleIMMarkdownEmphasis(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	if body == "" {
+		return ""
+	}
+	return "*" + body + "*"
+}
+
+func handleIMMarkdownDelete(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	body := strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+	if body == "" {
+		return ""
+	}
+	return "~~" + body + "~~"
+}
+
+func handleIMMarkdownPlainInline(_ string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	return strings.TrimSpace(convertToIMMarkdown(inner, imCtx))
+}
+
+func handleIMMarkdownAnchor(_ string, inner string, attrs map[string]string, imCtx imMarkdownContext) string {
+	href := strings.TrimSpace(attrs["href"])
+	text := firstNonEmpty(markdownLinkLabelText(convertToIMMarkdown(inner, imCtx)), attrs["name"], attrs["title"], href)
+	if href == "" {
+		return text
+	}
+	return markdownLink(text, href)
+}
+
+func handleIMMarkdownCite(segment string, inner string, attrs map[string]string, imCtx imMarkdownContext) string {
+	switch strings.ToLower(strings.TrimSpace(attrs["type"])) {
+	case "user":
+		userID := firstNonEmpty(attrs["user-id"], attrs["open-id"], attrs["id"])
+		name := firstNonEmpty(attrs["user-name"], attrs["name"], markdownPlainText(inner), userID)
+		if userID == "" {
+			return name
+		}
+		return fmt.Sprintf(`<at user_id="%s">%s</at>`, html.EscapeString(userID), html.EscapeString(name))
+	case "doc":
+		title := firstNonEmpty(attrs["title"], attrs["name"], attrs["doc-id"], "document")
+		if href := firstNonEmpty(attrs["href"], attrs["url"]); href != "" {
+			return markdownLink(title, href)
+		}
+		docID := firstNonEmpty(attrs["doc-id"], attrs["token"])
+		if docID == "" {
+			return imMarkdownInlineCode(segment)
+		}
+		fileType := strings.Trim(strings.ToLower(firstNonEmpty(attrs["file-type"], "docx")), "/")
+		return markdownLink(title, strings.TrimRight(imCtx.baseURL, "/")+"/"+fileType+"/"+docID)
+	case "citation":
+		if text, href, ok := extractIMMarkdownInnerLink(inner); ok {
+			return markdownLink(text, href)
+		}
+		if href := firstNonEmpty(attrs["href"], attrs["url"]); href != "" {
+			return markdownLink(firstNonEmpty(attrs["title"], attrs["name"], href), href)
+		}
+		return markdownPlainText(convertToIMMarkdown(inner, imCtx))
+	default:
+		return imMarkdownInlineCode(segment)
+	}
+}
+
+func handleIMMarkdownTable(segment string, inner string, _ map[string]string, imCtx imMarkdownContext) string {
+	// Rows and cells are matched with tag-depth tracking instead of non-greedy
+	// regex captures. A table nested inside a cell can contain its own </tr> and
+	// </td>; treating those as the outer row/cell boundary corrupts the table.
+	rowBodies := extractIMMarkdownElementBodies(inner, imMarkdownRowTagRE)
+	if len(rowBodies) == 0 {
+		return imMarkdownInlineCode(segment)
+	}
+
+	rows := make([][]string, 0, len(rowBodies))
+	for _, rowBody := range rowBodies {
+		cellBodies := extractIMMarkdownElementBodies(rowBody, imMarkdownCellTagRE)
+		if len(cellBodies) == 0 {
+			continue
+		}
+		row := make([]string, 0, len(cellBodies))
+		for _, cellBody := range cellBodies {
+			row = append(row, normalizeIMMarkdownTableCell(convertToIMMarkdown(cellBody, imCtx)))
+		}
+		rows = append(rows, row)
+	}
+	if len(rows) == 0 {
+		return imMarkdownInlineCode(segment)
+	}
+
+	cols := 0
+	for _, row := range rows {
+		if len(row) > cols {
+			cols = len(row)
+		}
+	}
+	var out strings.Builder
+	writeIMMarkdownTableRow(&out, padIMMarkdownTableRow(rows[0], cols))
+	separator := make([]string, cols)
+	for i := range separator {
+		separator[i] = "-"
+	}
+	writeIMMarkdownTableRow(&out, separator)
+	for _, row := range rows[1:] {
+		writeIMMarkdownTableRow(&out, padIMMarkdownTableRow(row, cols))
+	}
+	return strings.TrimRight(out.String(), "\n")
+}
+
+// extractIMMarkdownElementBodies returns the inner content of each top-level
+// element matched by tagRE. tagRE must expose the optional closing slash as its
+// first capture group, matching the row/cell regexes above.
+func extractIMMarkdownElementBodies(content string, tagRE *regexp.Regexp) []string {
+	var bodies []string
+	for offset := 0; offset < len(content); {
+		loc := tagRE.FindStringSubmatchIndex(content[offset:])
+		if loc == nil {
+			break
+		}
+		openStart := offset + loc[0]
+		openEnd := offset + loc[1]
+		opening := content[openStart:openEnd]
+		if loc[2] >= 0 && content[offset+loc[2]:offset+loc[3]] == "/" {
+			offset = openEnd
+			continue
+		}
+		if isSelfClosingIMMarkdownTag(opening) {
+			bodies = append(bodies, "")
+			offset = openEnd
+			continue
+		}
+		closeStart, closeEnd, found := findIMMarkdownElementClosingTag(content, openEnd, tagRE)
+		if !found {
+			break
+		}
+		bodies = append(bodies, content[openEnd:closeStart])
+		offset = closeEnd
+	}
+	return bodies
+}
+
+func findIMMarkdownElementClosingTag(content string, from int, tagRE *regexp.Regexp) (int, int, bool) {
+	depth := 1
+	for _, loc := range tagRE.FindAllStringSubmatchIndex(content[from:], -1) {
+		start := from + loc[0]
+		end := from + loc[1]
+		token := content[start:end]
+		if loc[2] >= 0 && content[from+loc[2]:from+loc[3]] == "/" {
+			depth--
+			if depth == 0 {
+				return start, end, true
+			}
+			continue
+		}
+		if !isSelfClosingIMMarkdownTag(token) {
+			depth++
+		}
+	}
+	return 0, 0, false
+}
+
+func normalizeIMMarkdownTableCell(cell string) string {
+	const brPlaceholder = "\x00BR\x00"
+	cell = imMarkdownCellBreakRE.ReplaceAllString(cell, brPlaceholder)
+	cell = imMarkdownAnyTagRE.ReplaceAllStringFunc(cell, func(tag string) string {
+		name := strings.ToLower(strings.TrimPrefix(imMarkdownAnyTagRE.FindStringSubmatch(tag)[1], "/"))
+		if name == "at" {
+			return tag
+		}
+		return ""
+	})
+	cell = html.UnescapeString(cell)
+	cell = strings.ReplaceAll(cell, brPlaceholder, "<br>")
+	cell = strings.ReplaceAll(cell, "  \n", "<br>")
+	cell = strings.ReplaceAll(cell, "\n", "<br>")
+	cell = strings.ReplaceAll(cell, "|", `\|`)
+	lines := strings.Fields(cell)
+	if len(lines) == 0 {
+		return ""
+	}
+	return strings.Join(lines, " ")
+}
+
+func writeIMMarkdownTableRow(out *strings.Builder, row []string) {
+	out.WriteString("| ")
+	out.WriteString(strings.Join(row, " | "))
+	out.WriteString(" |\n")
+}
+
+func padIMMarkdownTableRow(row []string, cols int) []string {
+	if len(row) >= cols {
+		return row
+	}
+	padded := make([]string, cols)
+	copy(padded, row)
+	return padded
+}
+
+func convertIMMarkdownListItems(inner string, ordered bool, imCtx imMarkdownContext) string {
+	var out strings.Builder
+	for offset, index := 0, 1; offset < len(inner); {
+		loc := imMarkdownLiOpenRE.FindStringIndex(inner[offset:])
+		if loc == nil {
+			break
+		}
+		openStart := offset + loc[0]
+		openEnd := offset + loc[1]
+		opening := inner[openStart:openEnd]
+		closeStart, closeEnd, found := findIMMarkdownListItemClosingTag(inner, openEnd)
+		if !found {
+			break
+		}
+		body := strings.TrimSpace(convertToIMMarkdown(inner[openEnd:closeStart], imCtx))
+		if body != "" {
+			prefix := "-"
+			if ordered {
+				attrs := parseIMMarkdownAttrs(opening)
+				if seq := strings.TrimSpace(attrs["seq"]); seq != "" && seq != "auto" {
+					prefix = strings.TrimSuffix(seq, ".") + "."
+				} else {
+					prefix = fmt.Sprintf("%d.", index)
+				}
+				index++
+			}
+			out.WriteString(prefix)
+			out.WriteString(" ")
+			out.WriteString(indentIMMarkdownListContinuation(body))
+			out.WriteString("\n")
+		}
+		offset = closeEnd
+	}
+	return strings.TrimRight(out.String(), "\n")
+}
+
+func findIMMarkdownListItemClosingTag(content string, from int) (int, int, bool) {
+	depth := 1
+	for _, loc := range imMarkdownLiCloseRE.FindAllStringSubmatchIndex(content[from:], -1) {
+		start := from + loc[0]
+		end := from + loc[1]
+		token := content[start:end]
+		if loc[2] >= 0 && content[from+loc[2]:from+loc[3]] == "/" {
+			depth--
+			if depth == 0 {
+				return start, end, true
+			}
+			continue
+		}
+		if !isSelfClosingIMMarkdownTag(token) {
+			depth++
+		}
+	}
+	return 0, 0, false
+}
+
+func indentIMMarkdownListContinuation(body string) string {
+	return strings.ReplaceAll(body, "\n", "\n  ")
+}
+
+func extractIMMarkdownInnerLink(inner string) (string, string, bool) {
+	match := imMarkdownLinkRE.FindStringSubmatch(inner)
+	if match == nil {
+		return "", "", false
+	}
+	href := match[1]
+	if href == "" {
+		href = match[2]
+	}
+	text := strings.TrimSpace(markdownPlainText(match[3]))
+	if text == "" {
+		text = href
+	}
+	return text, html.UnescapeString(href), true
+}
+
+func markdownPlainText(s string) string {
+	s = imMarkdownCellBreakRE.ReplaceAllString(s, "\n")
+	s = imMarkdownAnyTagRE.ReplaceAllString(s, "")
+	return strings.TrimSpace(html.UnescapeString(s))
+}
+
+func markdownLinkLabelText(s string) string {
+	text := markdownPlainText(s)
+	if !strings.Contains(text, "---") {
+		return text
+	}
+	lines := strings.Split(text, "\n")
+	kept := lines[:0]
+	for _, line := range lines {
+		if strings.TrimSpace(line) == "---" {
+			continue
+		}
+		kept = append(kept, line)
+	}
+	return strings.TrimSpace(strings.Join(kept, "\n"))
+}
+
+func markdownLink(text, href string) string {
+	cleanHref := strings.TrimSpace(href)
+	return fmt.Sprintf("[%s](%s)", escapeMarkdownLinkText(firstNonEmpty(text, cleanHref)), escapeMarkdownLinkDestination(cleanHref))
+}
+
+func escapeMarkdownLinkText(text string) string {
+	text = strings.ReplaceAll(text, `\`, `\\`)
+	text = strings.ReplaceAll(text, `[`, `\[`)
+	text = strings.ReplaceAll(text, `]`, `\]`)
+	return text
+}
+
+func escapeMarkdownLinkDestination(href string) string {
+	// Lark/Feishu IM Markdown does not reliably parse raw spaces or parentheses
+	// inside (...). Keep URL delimiters like :/?#&= intact, but percent-encode
+	// characters that can terminate or split the Markdown link destination.
+	var out strings.Builder
+	out.Grow(len(href))
+	for i := 0; i < len(href); {
+		if href[i] == '%' {
+			if i+2 < len(href) && isHexDigit(href[i+1]) && isHexDigit(href[i+2]) {
+				out.WriteString(href[i : i+3])
+				i += 3
+			} else {
+				writePercentEncodedByte(&out, href[i])
+				i++
+			}
+			continue
+		}
+		if href[i] < utf8.RuneSelf {
+			if shouldPercentEncodeIMMarkdownURLByte(href[i]) {
+				writePercentEncodedByte(&out, href[i])
+			} else {
+				out.WriteByte(href[i])
+			}
+			i++
+			continue
+		}
+		r, size := utf8.DecodeRuneInString(href[i:])
+		if r == utf8.RuneError && size == 1 {
+			writePercentEncodedByte(&out, href[i])
+			i++
+			continue
+		}
+		for _, b := range []byte(href[i : i+size]) {
+			writePercentEncodedByte(&out, b)
+		}
+		i += size
+	}
+	return out.String()
+}
+
+func shouldPercentEncodeIMMarkdownURLByte(b byte) bool {
+	if b <= ' ' || b >= 0x7f {
+		return true
+	}
+	switch b {
+	case '(', ')', '<', '>', '"', '\\', '^', '`', '{', '|', '}':
+		return true
+	default:
+		return false
+	}
+}
+
+func writePercentEncodedByte(out *strings.Builder, b byte) {
+	const hex = "0123456789ABCDEF"
+	out.WriteByte('%')
+	out.WriteByte(hex[b>>4])
+	out.WriteByte(hex[b&0x0f])
+}
+
+func isHexDigit(b byte) bool {
+	return ('0' <= b && b <= '9') || ('a' <= b && b <= 'f') || ('A' <= b && b <= 'F')
+}
+
+func imMarkdownInlineCode(s string) string {
+	maxRun := 0
+	run := 0
+	for _, r := range s {
+		if r == '`' {
+			run++
+			if run > maxRun {
+				maxRun = run
+			}
+			continue
+		}
+		run = 0
+	}
+	fence := strings.Repeat("`", maxRun+1)
+	if strings.HasPrefix(s, "`") || strings.HasSuffix(s, "`") {
+		return fence + " " + s + " " + fence
+	}
+	return fence + s + fence
+}
+
+func imMarkdownFencedCode(code, lang string) string {
+	maxRun := 0
+	for _, line := range strings.Split(code, "\n") {
+		if run := leadingBacktickRun(line); run > maxRun {
+			maxRun = run
+		}
+	}
+	fenceLen := maxRun + 1
+	if fenceLen < 3 {
+		fenceLen = 3
+	}
+	fence := strings.Repeat("`", fenceLen)
+	return fence + strings.TrimSpace(lang) + "\n" + strings.Trim(code, "\n") + "\n" + fence
+}
+
+func leadingBacktickRun(s string) int {
+	run := 0
+	for _, r := range s {
+		if r != '`' {
+			break
+		}
+		run++
+	}
+	return run
+}
+
+func firstNonEmpty(values ...string) string {
+	for _, value := range values {
+		if strings.TrimSpace(value) != "" {
+			return strings.TrimSpace(value)
+		}
+	}
+	return ""
+}

shortcuts/doc/docs_fetch_v2.go

@@ -17,7 +17,7 @@ import (
 // v2FetchFlags returns the flag definitions for the v2 (OpenAPI) fetch path.
 func v2FetchFlags() []common.Flag {
 	return []common.Flag{
-		{Name: "doc-format", Desc: "output content format; xml keeps DocxXML structure and optional block ids, markdown is plain export", Default: "xml", Enum: []string{"xml", "markdown"}},
+		{Name: "doc-format", Desc: "output content format; xml keeps DocxXML structure and optional block ids, markdown is plain export, im-markdown downgrades residual DocxXML fragments for IM messages", Default: "xml", Enum: []string{"xml", "markdown", "im-markdown"}},
 		{Name: "detail", Desc: "detail level; simple for reading, with-ids for block references, full for styles and edit metadata", Default: "simple", Enum: []string{"simple", "with-ids", "full"}},
 		{Name: "lang", Desc: "user cite display language, e.g. en-US, zh-CN, ja-JP"},
 		{Name: "revision-id", Desc: "document revision id; -1 means latest", Type: "int", Default: "-1"},
@@ -72,6 +72,9 @@ func executeFetchV2(_ context.Context, runtime *common.RuntimeContext) error {
 	if warning := addFetchDetailDowngradeWarning(runtime, data); warning != "" && runtime.Format == "pretty" {
 		fmt.Fprintf(runtime.IO().ErrOut, "warning: %s\n", warning)
 	}
+	if isIMMarkdownFetch(runtime) {
+		applyFetchIMMarkdown(data, runtime.Str("doc"))
+	}
 
 	runtime.OutFormatRaw(data, nil, func(w io.Writer) {
 		if doc, ok := data["document"].(map[string]interface{}); ok {
@@ -85,7 +88,7 @@ func executeFetchV2(_ context.Context, runtime *common.RuntimeContext) error {
 
 func buildFetchBody(runtime *common.RuntimeContext) map[string]interface{} {
 	body := map[string]interface{}{
-		"format": runtime.Str("doc-format"),
+		"format": effectiveFetchFormat(runtime),
 	}
 	if v := runtime.Int("revision-id"); v > 0 {
 		body["revision_id"] = v
@@ -122,6 +125,14 @@ func buildFetchBody(runtime *common.RuntimeContext) map[string]interface{} {
 	return body
 }
 
+func effectiveFetchFormat(runtime *common.RuntimeContext) string {
+	format := strings.TrimSpace(runtime.Str("doc-format"))
+	if format == "im-markdown" {
+		return "markdown"
+	}
+	return format
+}
+
 func resolveFetchLang(runtime *common.RuntimeContext) string {
 	if runtime.Changed("lang") {
 		return strings.TrimSpace(runtime.Str("lang"))

shortcuts/doc/docs_fetch_v2_test.go

@@ -6,9 +6,12 @@ package doc
 import (
 	"context"
 	"encoding/json"
+	"errors"
+	"reflect"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/httpmock"
@@ -104,6 +107,369 @@ func TestBuildFetchBodyExplicitBlankLangOmitsLang(t *testing.T) {
 	}
 }
 
+func TestBuildFetchBodyIncludesRevisionAndFullDetail(t *testing.T) {
+	t.Parallel()
+
+	runtime := newFetchBodyTestRuntime(context.Background())
+	mustSetFetchFlag(t, runtime, "revision-id", "42")
+	mustSetFetchFlag(t, runtime, "detail", "full")
+
+	body := buildFetchBody(runtime)
+	if got := body["revision_id"]; got != 42 {
+		t.Fatalf("revision_id = %#v, want 42", got)
+	}
+	exportOption, _ := body["export_option"].(map[string]interface{})
+	want := map[string]interface{}{
+		"export_block_id":        true,
+		"export_style_attrs":     true,
+		"export_cite_extra_data": true,
+	}
+	if !reflect.DeepEqual(exportOption, want) {
+		t.Fatalf("export_option = %#v, want %#v", exportOption, want)
+	}
+}
+
+func TestBuildFetchBodyIncludesWithIDsDetail(t *testing.T) {
+	t.Parallel()
+
+	runtime := newFetchBodyTestRuntime(context.Background())
+	mustSetFetchFlag(t, runtime, "detail", "with-ids")
+
+	body := buildFetchBody(runtime)
+	exportOption, _ := body["export_option"].(map[string]interface{})
+	want := map[string]interface{}{
+		"export_block_id": true,
+	}
+	if !reflect.DeepEqual(exportOption, want) {
+		t.Fatalf("export_option = %#v, want %#v", exportOption, want)
+	}
+}
+
+func TestBuildFetchBodyIncludesReadOption(t *testing.T) {
+	t.Parallel()
+
+	runtime := newFetchBodyTestRuntime(context.Background())
+	mustSetFetchFlag(t, runtime, "scope", "section")
+	mustSetFetchFlag(t, runtime, "start-block-id", "blk_heading")
+
+	body := buildFetchBody(runtime)
+	want := map[string]interface{}{
+		"read_mode":      "section",
+		"start_block_id": "blk_heading",
+	}
+	if got := body["read_option"]; !reflect.DeepEqual(got, want) {
+		t.Fatalf("read_option = %#v, want %#v", got, want)
+	}
+}
+
+func TestBuildReadOptionModes(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name     string
+		setFlags map[string]string
+		want     map[string]interface{}
+	}{
+		{
+			name: "full omits read option",
+			setFlags: map[string]string{
+				"scope": "full",
+			},
+			want: nil,
+		},
+		{
+			name: "outline with max depth",
+			setFlags: map[string]string{
+				"scope":     "outline",
+				"max-depth": "3",
+			},
+			want: map[string]interface{}{
+				"read_mode": "outline",
+				"max_depth": "3",
+			},
+		},
+		{
+			name: "range with block ids and context",
+			setFlags: map[string]string{
+				"scope":          "range",
+				"start-block-id": "blk_start",
+				"end-block-id":   "blk_end",
+				"context-before": "2",
+				"context-after":  "1",
+				"max-depth":      "0",
+			},
+			want: map[string]interface{}{
+				"read_mode":      "range",
+				"start_block_id": "blk_start",
+				"end_block_id":   "blk_end",
+				"context_before": "2",
+				"context_after":  "1",
+				"max_depth":      "0",
+			},
+		},
+		{
+			name: "keyword with query",
+			setFlags: map[string]string{
+				"scope":          "keyword",
+				"keyword":        "foo|bar",
+				"context-before": "1",
+			},
+			want: map[string]interface{}{
+				"read_mode":      "keyword",
+				"keyword":        "foo|bar",
+				"context_before": "1",
+			},
+		},
+		{
+			name: "section keeps unlimited depth omitted",
+			setFlags: map[string]string{
+				"scope":          "section",
+				"start-block-id": "blk_heading",
+				"max-depth":      "-1",
+			},
+			want: map[string]interface{}{
+				"read_mode":      "section",
+				"start_block_id": "blk_heading",
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			runtime := newFetchBodyTestRuntime(context.Background())
+			for name, value := range tt.setFlags {
+				mustSetFetchFlag(t, runtime, name, value)
+			}
+
+			if got := buildReadOption(runtime); !reflect.DeepEqual(got, tt.want) {
+				t.Fatalf("buildReadOption() = %#v, want %#v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestValidateReadModeFlagsRejectsInvalidScopeOptions(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name       string
+		setFlags   map[string]string
+		wantParam  string
+		wantParams []string
+	}{
+		{
+			name: "negative context before",
+			setFlags: map[string]string{
+				"scope":          "range",
+				"start-block-id": "blk_start",
+				"context-before": "-1",
+			},
+			wantParam: "--context-before",
+		},
+		{
+			name: "negative context after",
+			setFlags: map[string]string{
+				"scope":          "range",
+				"start-block-id": "blk_start",
+				"context-after":  "-1",
+			},
+			wantParam: "--context-after",
+		},
+		{
+			name: "max depth below unlimited sentinel",
+			setFlags: map[string]string{
+				"scope":          "range",
+				"start-block-id": "blk_start",
+				"max-depth":      "-2",
+			},
+			wantParam: "--max-depth",
+		},
+		{
+			name: "range needs boundary",
+			setFlags: map[string]string{
+				"scope": "range",
+			},
+			wantParams: []string{
+				"--start-block-id",
+				"--end-block-id",
+			},
+		},
+		{
+			name: "keyword needs keyword",
+			setFlags: map[string]string{
+				"scope": "keyword",
+			},
+			wantParam: "--keyword",
+		},
+		{
+			name: "section needs start block",
+			setFlags: map[string]string{
+				"scope": "section",
+			},
+			wantParam: "--start-block-id",
+		},
+		{
+			name: "unknown scope",
+			setFlags: map[string]string{
+				"scope": "bad",
+			},
+			wantParam: "--scope",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			runtime := newFetchBodyTestRuntime(context.Background())
+			for name, value := range tt.setFlags {
+				mustSetFetchFlag(t, runtime, name, value)
+			}
+
+			err := validateReadModeFlags(runtime)
+			if err == nil {
+				t.Fatal("validateReadModeFlags() succeeded, want error")
+			}
+			assertValidationContract(t, err, errs.SubtypeInvalidArgument, tt.wantParam, tt.wantParams...)
+		})
+	}
+}
+
+func TestValidateReadModeFlagsAcceptsValidScopeOptions(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name     string
+		setFlags map[string]string
+	}{
+		{
+			name: "outline",
+			setFlags: map[string]string{
+				"scope": "outline",
+			},
+		},
+		{
+			name: "range with end block",
+			setFlags: map[string]string{
+				"scope":        "range",
+				"end-block-id": "blk_end",
+			},
+		},
+		{
+			name: "keyword with keyword",
+			setFlags: map[string]string{
+				"scope":   "keyword",
+				"keyword": "bug|缺陷",
+			},
+		},
+		{
+			name: "section with start block",
+			setFlags: map[string]string{
+				"scope":          "section",
+				"start-block-id": "blk_heading",
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			runtime := newFetchBodyTestRuntime(context.Background())
+			for name, value := range tt.setFlags {
+				mustSetFetchFlag(t, runtime, name, value)
+			}
+
+			if err := validateReadModeFlags(runtime); err != nil {
+				t.Fatalf("validateReadModeFlags() error = %v", err)
+			}
+		})
+	}
+}
+
+func TestValidateFetchV2RejectsInvalidDocAndScope(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name      string
+		setFlags  map[string]string
+		wantParam string
+	}{
+		{
+			name: "invalid doc",
+			setFlags: map[string]string{
+				"doc": "https://example.com/sheets/sht_token",
+			},
+			wantParam: "--doc",
+		},
+		{
+			name: "invalid scope",
+			setFlags: map[string]string{
+				"scope": "bad",
+			},
+			wantParam: "--scope",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			runtime := newFetchShortcutTestRuntime(t, "", tt.setFlags)
+			err := validateFetchV2(context.Background(), runtime)
+			if err == nil {
+				t.Fatal("validateFetchV2() succeeded, want error")
+			}
+			assertValidationContract(t, err, errs.SubtypeInvalidArgument, tt.wantParam)
+		})
+	}
+}
+
+func TestAddFetchDetailDowngradeWarningNoops(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name     string
+		setFlags map[string]string
+	}{
+		{
+			name: "xml format",
+			setFlags: map[string]string{
+				"doc-format": "xml",
+				"detail":     "full",
+			},
+		},
+		{
+			name: "markdown simple detail",
+			setFlags: map[string]string{
+				"doc-format": "markdown",
+				"detail":     "simple",
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			runtime := newFetchBodyTestRuntime(context.Background())
+			for name, value := range tt.setFlags {
+				mustSetFetchFlag(t, runtime, name, value)
+			}
+
+			data := map[string]interface{}{}
+			if got := addFetchDetailDowngradeWarning(runtime, data); got != "" {
+				t.Fatalf("warning = %q, want empty", got)
+			}
+			if _, ok := data["warnings"]; ok {
+				t.Fatalf("unexpected warnings: %#v", data["warnings"])
+			}
+		})
+	}
+}
+
 func TestDocsFetchDryRunDefaultsToV2Endpoint(t *testing.T) {
 	t.Parallel()
 
@@ -141,36 +507,54 @@ func TestDocsFetchAPIVersionV1StillUsesV2Endpoint(t *testing.T) {
 	}
 }
 
+func TestDocsFetchIMMarkdownRequestsMarkdownFromAPI(t *testing.T) {
+	t.Parallel()
+
+	runtime := newFetchShortcutTestRuntime(t, "", map[string]string{
+		"doc-format": "im-markdown",
+	})
+	if err := validateFetchV2(context.Background(), runtime); err != nil {
+		t.Fatalf("validateFetchV2() error = %v", err)
+	}
+
+	dry := decodeDocDryRun(t, DocsFetch.DryRun(context.Background(), runtime))
+	if got, want := dry.API[0].Body["format"], "markdown"; got != want {
+		t.Fatalf("dry-run format = %#v, want %q", got, want)
+	}
+}
+
 func TestDocsFetchMarkdownDetailDowngradesToSimple(t *testing.T) {
 	t.Parallel()
 
-	for _, detail := range []string{"with-ids", "full"} {
-		t.Run(detail, func(t *testing.T) {
-			t.Parallel()
+	for _, format := range []string{"markdown", "im-markdown"} {
+		for _, detail := range []string{"with-ids", "full"} {
+			t.Run(format+"/"+detail, func(t *testing.T) {
+				t.Parallel()
 
-			runtime := newFetchShortcutTestRuntime(t, "", map[string]string{
-				"doc-format": "markdown",
-				"detail":     detail,
+				runtime := newFetchShortcutTestRuntime(t, "", map[string]string{
+					"doc-format": format,
+					"detail":     detail,
+				})
+				if err := validateFetchV2(context.Background(), runtime); err != nil {
+					t.Fatalf("validateFetchV2() error = %v", err)
+				}
+
+				dry := decodeDocDryRun(t, DocsFetch.DryRun(context.Background(), runtime))
+				exportOption, _ := dry.API[0].Body["export_option"].(map[string]interface{})
+				if exportOption == nil {
+					t.Fatalf("missing export_option: %#v", dry.API[0].Body)
+				}
+				if got := exportOption["export_block_id"]; got != false {
+					t.Fatalf("export_block_id = %#v, want false after markdown detail downgrade", got)
+				}
+				if got := exportOption["export_style_attrs"]; got != false {
+					t.Fatalf("export_style_attrs = %#v, want false after markdown detail downgrade", got)
+				}
+				if got := exportOption["export_cite_extra_data"]; got != false {
+					t.Fatalf("export_cite_extra_data = %#v, want false after markdown detail downgrade", got)
+				}
 			})
-			if err := validateFetchV2(context.Background(), runtime); err != nil {
-				t.Fatalf("validateFetchV2() error = %v", err)
-			}
-
-			dry := decodeDocDryRun(t, DocsFetch.DryRun(context.Background(), runtime))
-			exportOption, _ := dry.API[0].Body["export_option"].(map[string]interface{})
-			if exportOption == nil {
-				t.Fatalf("missing export_option: %#v", dry.API[0].Body)
-			}
-			if got := exportOption["export_block_id"]; got != false {
-				t.Fatalf("export_block_id = %#v, want false after markdown detail downgrade", got)
-			}
-			if got := exportOption["export_style_attrs"]; got != false {
-				t.Fatalf("export_style_attrs = %#v, want false after markdown detail downgrade", got)
-			}
-			if got := exportOption["export_cite_extra_data"]; got != false {
-				t.Fatalf("export_cite_extra_data = %#v, want false after markdown detail downgrade", got)
-			}
-		})
+		}
 	}
 }
 
@@ -261,6 +645,107 @@ func TestDocsFetchMarkdownDetailDowngradeWarnsInPrettyOutput(t *testing.T) {
 	}
 }
 
+func TestDocsFetchV2ReturnsAPIError(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, docsTestConfigWithAppID("docs-fetch-api-error"))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/docs_ai/v1/documents/doxcnFetchAPIError/fetch",
+		Body: map[string]interface{}{
+			"code": 999999,
+			"msg":  "fetch failed",
+		},
+	})
+
+	err := mountAndRunDocs(t, DocsFetch, []string{
+		"+fetch",
+		"--doc", "doxcnFetchAPIError",
+		"--as", "bot",
+	}, f, stdout)
+	if err == nil {
+		t.Fatal("mountAndRunDocs() succeeded, want API error")
+	}
+	var apiErr *errs.APIError
+	if !errors.As(err, &apiErr) {
+		t.Fatalf("error type = %T, want *errs.APIError (%v)", err, err)
+	}
+	p, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("ProblemOf() ok = false for %T (%v)", err, err)
+	}
+	if p.Category != errs.CategoryAPI {
+		t.Errorf("category = %q, want %q", p.Category, errs.CategoryAPI)
+	}
+	if p.Subtype != errs.SubtypeUnknown {
+		t.Errorf("subtype = %q, want %q", p.Subtype, errs.SubtypeUnknown)
+	}
+	if p.Code != 999999 {
+		t.Errorf("code = %d, want 999999", p.Code)
+	}
+	if p.Message != "fetch failed" {
+		t.Errorf("message = %q, want %q", p.Message, "fetch failed")
+	}
+	if cause := errors.Unwrap(err); cause != nil {
+		t.Fatalf("unexpected wrapped cause for API response error: %T %v", cause, cause)
+	}
+}
+
+func TestDocsFetchIMMarkdownConvertsContentInJSONOutput(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, docsTestConfigWithAppID("docs-fetch-im-markdown"))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/docs_ai/v1/documents/doxcnFetchIMMarkdown/fetch",
+		Body: map[string]interface{}{
+			"code": 0,
+			"msg":  "ok",
+			"data": map[string]interface{}{
+				"document": map[string]interface{}{
+					"document_id": "doxcnFetchIMMarkdown",
+					"revision_id": float64(1),
+					"content": strings.Join([]string{
+						`<title>Doc Title</title>`,
+						`<callout emoji="💡">Read **this**.</callout>`,
+						`<bookmark name="Example" href="https://example.com"></bookmark>`,
+					}, "\n\n"),
+				},
+			},
+		},
+	})
+
+	err := mountAndRunDocs(t, DocsFetch, []string{
+		"+fetch",
+		"--doc", "doxcnFetchIMMarkdown",
+		"--doc-format", "im-markdown",
+		"--as", "bot",
+	}, f, stdout)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	var envelope map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &envelope); err != nil {
+		t.Fatalf("decode output: %v\nraw=%s", err, stdout.String())
+	}
+	data, _ := envelope["data"].(map[string]interface{})
+	doc, _ := data["document"].(map[string]interface{})
+	content, _ := doc["content"].(string)
+	for _, want := range []string{
+		"# Doc Title",
+		"---\n💡 Read **this**.\n---",
+		"[Example](https://example.com)",
+	} {
+		if !strings.Contains(content, want) {
+			t.Fatalf("converted content missing %q:\n%s", want, content)
+		}
+	}
+	if strings.Contains(content, "<title>") || strings.Contains(content, "<callout") || strings.Contains(content, "<bookmark") {
+		t.Fatalf("converted content still contains downgraded XML tags:\n%s", content)
+	}
+}
+
 func TestDocsFetchRejectsLegacyFlags(t *testing.T) {
 	tests := []struct {
 		name     string
@@ -291,6 +776,7 @@ func TestDocsFetchRejectsLegacyFlags(t *testing.T) {
 			if err == nil {
 				t.Fatal("expected v2-only validation error")
 			}
+			assertValidationContract(t, err, errs.SubtypeInvalidArgument, "--offset")
 			for _, want := range tt.want {
 				if !strings.Contains(err.Error(), want) {
 					t.Fatalf("error missing %q: %v", want, err)
@@ -316,6 +802,14 @@ func newFetchBodyTestRuntime(ctx context.Context) *common.RuntimeContext {
 	return common.TestNewRuntimeContextWithCtx(ctx, cmd, nil)
 }
 
+func mustSetFetchFlag(t *testing.T, runtime *common.RuntimeContext, name, value string) {
+	t.Helper()
+
+	if err := runtime.Cmd.Flags().Set(name, value); err != nil {
+		t.Fatalf("set %s: %v", name, err)
+	}
+}
+
 func newFetchShortcutTestRuntime(t *testing.T, apiVersion string, setFlags map[string]string) *common.RuntimeContext {
 	t.Helper()
 

skills/lark-doc/SKILL.md

@@ -21,15 +21,15 @@ lark-cli docs +create --api-version v2 --content '<title>标题</title><p>内容
 lark-cli docs +update --api-version v2 --doc "文档URL或token" --command append --content '<p>内容</p>'
 ```
 
-## 前置条件 — 执行操作前必读
+## 操作入口 — 执行操作前必读
 
-**CRITICAL — 执行对应操作前，MUST 先用 Read 工具读取以下文件，缺一不可：**
-1. [`../lark-shared/SKILL.md`](../lark-shared/SKILL.md) — 认证、权限处理、全局参数（所有操作通用）
-2. **读取文档（`docs +fetch --api-version v2`）** → 必读 [`lark-doc-fetch.md`](references/lark-doc-fetch.md)（`--scope` / `--detail` 选择、局部读取策略、`<fragment>` / `<excerpt>` 输出结构）
-3. **创建或编辑文档内容** → 必读 [`lark-doc-xml.md`](references/lark-doc-xml.md)（XML 语法规则，仅当用户明确要求 Markdown 时改读 [`lark-doc-md.md`](references/lark-doc-md.md)）；从零创建时加读 [`lark-doc-create-workflow.md`](references/style/lark-doc-create-workflow.md)；编辑已有文档时加读 [`lark-doc-update.md`](references/lark-doc-update.md) 和 [`lark-doc-update-workflow.md`](references/style/lark-doc-update-workflow.md)
-4. **需要使用 callout、grid、table、whiteboard 等富 block 时** → 参考 [`lark-doc-style.md`](references/style/lark-doc-style.md) 的元素能力说明。该文件不是固定模板或强制排版规范；除非用户明确要求美化、重排版或特定风格，不要为了“达标”主动套用固定结构。
+**CRITICAL — 先根据操作大类查 [`lark-doc-operation-guide.md`](references/lark-doc-operation-guide.md)，再读取该操作对应的必读 reference。**
 
-**未读完以上文件就执行相应操作会导致参数选择错误或格式错误。**
+操作 guide 把“操作大类 → 必读 reference → 条件加读 → 易混边界”集中维护，避免只凭记忆选择参数或遗漏格式规则。
+
+**所有操作通用前置：** MUST 先读取 [`../lark-shared/SKILL.md`](../lark-shared/SKILL.md)，了解认证、权限处理、全局参数、安全规则和路径限制。
+
+**未读完 guide 中对应操作的必读文件就执行操作会导致参数选择错误或格式错误。**
 
 > **格式选择规则（全局）：**
 > - **创建 / 导入场景**（`docs +create`，或 `docs +update --command append/overwrite` 的整段写入）：XML 和 Markdown 都可以。用户提供 `.md` 本地文件、或明确说"导入 Markdown"时，直接用 Markdown；否则默认 XML（可用 callout、grid、checkbox 等富 block）。
@@ -60,21 +60,6 @@ lark-cli docs +update --api-version v2 --doc "文档URL或token" --command appen
 | `<vc-transcribe-tab vc-node-id="...">` | `vc-node-id` -> note_id | [`lark-note`](../lark-note/SKILL.md)：先 `note +detail --note-id <vc-node-id>` |
 | `<synced_reference src-token="..." src-block-id="...">` | `src-token` -> doc_token, `src-block-id` -> block_id | 用 `docs +fetch --api-version v2` 读取 src-token 文档，定位 block |
 
-## Shortcuts（推荐优先使用）
-
-Shortcut 是对常用操作的高级封装（`lark-cli docs +<verb> [flags]`）。有 Shortcut 的操作优先使用。
-
-| Shortcut | 说明 |
-|----------|------|
-| [`+create`](references/lark-doc-create.md) | Create a Lark document (XML / Markdown) |
-| [`+fetch`](references/lark-doc-fetch.md) | Fetch Lark document content (XML / Markdown) |
-| [`+update`](references/lark-doc-update.md) | Update a Lark document (str_replace / block_insert_after / block_replace / ...) |
-| [`+media-insert`](references/lark-doc-media-insert.md) | Insert a local image or file at the end of a Lark document (4-step orchestration + auto-rollback). Prefer `--from-clipboard` when the image is already on the system clipboard (screenshots, copy from Feishu/browser); use `--file` only for on-disk sources. |
-| [`+media-download`](references/lark-doc-media-download.md) | Download document media or whiteboard thumbnail (auto-detects extension) |
-| [`+media-preview`](references/lark-doc-media-preview.md) | Preview document media file (auto-detects extension) |
-| [`+resource-download` / `+resource-update` / `+resource-delete`](references/lark-doc-resource-cover.md) | Download, update, or delete a Docx cover image resource with `--type cover` |
-| [`+whiteboard-update`](../lark-whiteboard/references/lark-whiteboard-update.md) | Alias of `whiteboard +update`. Update an existing whiteboard with DSL, Mermaid or PlantUML. Prefer `whiteboard +update`; refer to lark-whiteboard skill for details. |
-
 ## 不在本 Skill 范围
 
 - 文档评论管理 → [`lark-drive`](../lark-drive/SKILL.md)

skills/lark-doc/references/lark-doc-fetch.md

@@ -91,7 +91,7 @@ lark-cli docs +fetch --api-version v2 --doc Z1Fj...tnAc \
 }
 ```
 
-`content` 的格式由 `--doc-format` 决定。设置 `--scope` 时会被 `<fragment>` 包裹，详见上文"局部读取的输出结构"。
+`content` 的格式由 `--doc-format` 决定；`im-markdown` 仅用于获取内容后在 `lark-im` 场景下使用。设置 `--scope` 时会被 `<fragment>` 包裹，详见上文"局部读取的输出结构"。
 
 ## 参数
 
@@ -99,7 +99,7 @@ lark-cli docs +fetch --api-version v2 --doc Z1Fj...tnAc \
 |------|------|------|
 | `--api-version` | 是 | 固定传 `v2` |
 | `--doc` | 是 | 文档 URL 或 token（支持 `/docx/` 和 `/wiki/`） |
-| `--doc-format` | 否 | `xml`（默认）\| `markdown` \| `text` |
+| `--doc-format` | 否 | `xml`（默认）\| `markdown` \| `text` \| `im-markdown`（仅用于获取内容后在 `lark-im` 场景下使用） |
 | `--detail` | 否 | `simple`（默认）\| `with-ids` \| `full` |
 | `--revision-id` | 否 | 文档版本号，`-1` = 最新（默认） |
 | `--scope` | 否 | `outline` \| `range` \| `keyword` \| `section`（省略 = 读整篇） |

skills/lark-doc/references/lark-doc-md.md

@@ -1,6 +1,6 @@
 # Markdown 格式参考
 
-`docs +fetch --api-version v2` / `docs +create --api-version v2` / `docs +update --api-version v2` 使用 `--doc-format markdown` 时适用。
+`docs +fetch --api-version v2` / `docs +create --api-version v2` / `docs +update --api-version v2` 使用 `--doc-format markdown` 时适用；fetch 的 `--doc-format im-markdown` 仅用于获取内容后在 `lark-im` 场景下使用，不作为 create/update 写入格式。
 
 ## 创建文档标题
 

skills/lark-doc/references/lark-doc-operation-guide.md

@@ -0,0 +1,39 @@
+# lark-doc 操作入口 Guide
+
+本文件维护执行前的入口判断：先用“操作大类前置”确定必读 reference，再用“易混边界”避免跨 skill 或资源类型选错。具体参数、示例和工作流仍以各 reference 为准。
+
+所有操作都默认先读 [`../../lark-shared/SKILL.md`](../../lark-shared/SKILL.md)，了解认证、权限、安全规则、全局参数和路径限制。
+
+## 操作大类前置
+
+| 操作大类 | 触发场景 | 必读 reference | 条件加读 |
+|-|-|-|-|
+| 读取文档 | 浏览、总结、摘取正文、定位 block、获取直达链接、提取素材或嵌入对象 token | [`lark-doc-fetch.md`](lark-doc-fetch.md) | 需要 Markdown 输出或基于 Markdown 更新时读 [`lark-doc-md.md`](lark-doc-md.md) |
+| 创建文档 | 新建 Docx/Wiki 文档，含短文档、长文档骨架、Markdown 导入 | [`lark-doc-create.md`](lark-doc-create.md), [`lark-doc-xml.md`](lark-doc-xml.md) | 用户提供 `.md` 或明确要求 Markdown 时读 [`lark-doc-md.md`](lark-doc-md.md)；长文档读 [`style/lark-doc-create-workflow.md`](style/lark-doc-create-workflow.md)；需要根据题材组织文档时读 [`style/topics/topic-router.md`](style/topics/topic-router.md)；需要富 block 或美化时读 [`style/lark-doc-style.md`](style/lark-doc-style.md) |
+| 编辑文档 | 替换、插入、删除、移动、复制、追加、覆盖、改写、润色、重排版 | [`lark-doc-update.md`](lark-doc-update.md), [`lark-doc-xml.md`](lark-doc-xml.md) | 用户明确要求 Markdown 或需 Markdown 跨行匹配时读 [`lark-doc-md.md`](lark-doc-md.md)；改写/润色读 [`style/lark-doc-update-workflow.md`](style/lark-doc-update-workflow.md)；需要富 block 或美化时读 [`style/lark-doc-style.md`](style/lark-doc-style.md) |
+| 正文素材 | 插入、预览或下载正文图片/附件，下载画板缩略图 | 对应操作的 [`lark-doc-media-insert.md`](lark-doc-media-insert.md) / [`lark-doc-media-preview.md`](lark-doc-media-preview.md) / [`lark-doc-media-download.md`](lark-doc-media-download.md) | 需要从文档中提取素材 token 时先读 [`lark-doc-fetch.md`](lark-doc-fetch.md) |
+| 文档级资源 | 下载、更新或删除 Docx 封面图 | [`lark-doc-resource-cover.md`](lark-doc-resource-cover.md) | 无；封面不是正文 `<img>`，不要走 `+media-*` |
+| 画板协作 | 新增 Mermaid/SVG 画板，或更新已有画板 | [`lark-doc-whiteboard.md`](lark-doc-whiteboard.md) | 插入新的 `<whiteboard>` block 时读 [`lark-doc-xml.md`](lark-doc-xml.md)；更新已有复杂画板时读 [`../../lark-whiteboard/SKILL.md`](../../lark-whiteboard/SKILL.md)；需要美化/结构化表达时读 [`style/lark-doc-style.md`](style/lark-doc-style.md) |
+| 嵌入对象下钻 | 正文中出现 `<sheet>`、`<bitable>`、`<cite file-type=...>`、`<vc-transcribe-tab>`、`<synced_reference>` 等 | [`lark-doc-fetch.md`](lark-doc-fetch.md) | 按对象类型切到 [`../../lark-sheets/SKILL.md`](../../lark-sheets/SKILL.md)、[`../../lark-base/SKILL.md`](../../lark-base/SKILL.md)、[`../../lark-note/SKILL.md`](../../lark-note/SKILL.md) 或继续用 `docs +fetch` 读取源文档 |
+| 非本 skill | 评论、评论回复、reaction、权限、云空间文件管理、导入导出 | 对应目标 skill | 评论/云空间管理走 [`../../lark-drive/SKILL.md`](../../lark-drive/SKILL.md)；表格/Base 内部数据走 sheets/base |
+
+## 易混边界
+
+- 正文图片、附件和画板缩略图走正文素材操作；文档封面走 [`lark-doc-resource-cover.md`](lark-doc-resource-cover.md)，不要把封面当正文 `<img>` 处理。
+- 已有复杂画板的查询、导出、渲染验证和写入以 [`../../lark-whiteboard/SKILL.md`](../../lark-whiteboard/SKILL.md) 的流程为准。
+- 评论、权限、云空间文件管理、导入导出不归本 skill，按场景切到 [`../../lark-drive/SKILL.md`](../../lark-drive/SKILL.md)。
+- 文档内嵌 `<sheet>` / `<bitable>` / `<cite file-type=...>` 时，本 skill 只负责提取 token；对象内部数据读取和修改切到对应 skill。
+
+## 格式选择
+
+- **创建 / 导入场景**：XML 和 Markdown 都可以。用户提供 `.md` 本地文件、或明确说“导入 Markdown”时直接用 Markdown；否则默认 XML。
+- **精准编辑场景**：`str_replace` / `block_insert_after` / `block_replace` / `block_delete` / `block_move_after` 等局部精修优先 XML。
+- **Markdown 限制**：Markdown 不携带 block ID，也无样式。需要按 block ID 定位时，先用 `docs +fetch --detail with-ids` 局部获取目标段落。
+- **富 block**：callout、grid、table、whiteboard 等结构化表达由内容和用户意图决定；不要为了“丰富”强行套用固定结构。
+
+## 校验要点
+
+- 写操作后，如继续 block 级操作，按 [`lark-doc-update.md`](lark-doc-update.md) 的“Block ID 生命周期”判断是否需要重新 fetch。
+- `overwrite` / `block_replace` / `block_delete` 后不要复用受影响旧 ID。
+- 插入 / 复制新块后，要操作新块必须重新 fetch 获取新 block ID。
+- 正文素材走 `+media-*`；文档封面走 `+resource-* --type cover`。

skills/lark-doc/references/style/lark-doc-create-workflow.md

@@ -19,30 +19,31 @@
 ### 步骤一：规划与初始创建（串行）
 
 1. 分析用户需求：受众、目的、范围
-2. 设计大纲：根据任务自然选择结构。可以是短文、纪要、FAQ、方案、报告、清单或其他形式；不要默认套固定章节、固定开头或固定富 block 配比
-3. `docs +create --api-version v2` 创建文档。长文档可**只建骨架**：标题 + 各级标题 + 每节一句占位摘要；短文档可以一次写入完整内容
+2. 如需从零组织文档且用户未指定固定模板，先读 [`topics/topic-router.md`](topics/topic-router.md) 判断题材；命中题材后加读对应题材指引，再设计大纲
+3. 设计大纲：根据任务自然选择结构。可以是短文、纪要、FAQ、方案、报告、清单或其他形式；不要默认套固定章节、固定开头或固定富 block 配比
+4. `docs +create --api-version v2` 创建文档。长文档可**只建骨架**：标题 + 各级标题 + 每节一句占位摘要；短文档可以一次写入完整内容
    - ⚠️ 创建较长文档时，**不要**一次性把完整章节内容塞进 `--content`。超长 `--content` 容易触发字符/参数限制。
    - 完整内容留到步骤二，由各 Agent 用 `block_insert_after --block-id <章节标题 block_id>` 分段写入。
    - ⚠️ **`@file` 路径限制**：`--content @file` 只接受当前工作目录下的相对路径，传绝对路径（如 `@/tmp/xxx.md`）会报 `unsafe file path`。需要落盘时，将文件写在 cwd 下，用完自行清理。
 
 ### 步骤二：分段撰写（并行 Agent）
 
-4. Spawn Agent 并行撰写各章节。每个 Agent 需收到：
+5. Spawn Agent 并行撰写各章节。每个 Agent 需收到：
    - 文档 token、负责的章节范围、用户目标、目标读者和已有风格线索
    - `lark-doc-xml.md` 的完整路径（Agent 须先读取）；仅在需要使用富 block 或用户要求美化时提供 `lark-doc-style.md`
    - 使用 `block_insert_after --block-id <章节标题 block_id>` 写入对应章节内容
 
 ### 步骤三：整合审查与画板识别（串行）
 
-5. `docs +fetch --api-version v2 --detail with-ids` 获取文档，审查整体效果
-6. 评估内容是否满足用户目标：事实是否完整、结构是否清楚、语气是否匹配、是否保留必要素材
-7. **画板意图识别**：逐章节扫描，按 `lark-doc-style.md`「画板意图识别」表判断是否有段落适合用图表达。重要信息优先画板化，记录需要插图的章节、推荐画板类型、mermaid/SVG 路径和用于画图的源内容
+6. `docs +fetch --api-version v2 --detail with-ids` 获取文档，审查整体效果
+7. 评估内容是否满足用户目标：事实是否完整、结构是否清楚、语气是否匹配、是否保留必要素材
+8. **画板意图识别**：逐章节扫描，按 `lark-doc-style.md`「画板意图识别」表判断是否有段落适合用图表达。重要信息优先画板化，记录需要插图的章节、推荐画板类型、mermaid/SVG 路径和用于画图的源内容
 
 ### 步骤四：画板处理与润色（并行 Agent）
 
-8. **优先处理步骤三识别出的画板需求**：
+9. **优先处理步骤三识别出的画板需求**：
    参考 [lark-doc-whiteboard.md](../lark-doc-whiteboard.md)中的方式，插入图表画板。
-9. Spawn 内容改写 Agent 定向润色：
+10. Spawn 内容改写 Agent 定向润色：
    - 文字密集且不易读时，优先拆段、改列表、增加小标题或调整顺序；只有确实存在行列数据、并列对比或强提醒信息时，才考虑 `<table>` / `<grid>` / `<callout>`
    - 需要明显分隔的主题可补充 `<hr/>`，不强制章节间都使用
    - 本地图片使用 `docs +media-insert` 插入

skills/lark-doc/references/style/topics/meeting-notes.md

@@ -0,0 +1,20 @@
+# 会议纪要文档指引
+
+## 适用场景
+
+会议纪要、同步会记录、讨论结论、评审记录等需要沉淀共识和行动项的文档。
+
+## 结构建议
+
+- 会议信息：主题、时间、参会人
+- 背景或议题
+- 讨论要点
+- 已达成结论
+- 待办事项与负责人
+- 未决问题
+
+## 表达建议
+
+- 先写结论和行动项，再保留必要讨论过程。
+- 待办事项尽量写清负责人、截止时间和验收标准。
+- 已知 open_id 的人员使用 `<cite type="user" user-id="..."></cite>`。

skills/lark-doc/references/style/topics/project-plan.md

@@ -0,0 +1,20 @@
+# 项目计划文档指引
+
+## 适用场景
+
+项目计划、推进方案、排期、里程碑、跨团队协作方案等需要说明目标、范围、路径和风险的文档。
+
+## 结构建议
+
+- 背景与目标
+- 范围与不做事项
+- 里程碑与时间安排
+- 工作拆解与责任分工
+- 风险、依赖与应对
+- 下一步动作
+
+## 表达建议
+
+- 时间线、依赖关系和关键路径适合用表格或画板。
+- 不要虚构日期、负责人或指标；缺失信息标为待确认。
+- 风险和依赖要写出影响与应对，不只列名称。

skills/lark-doc/references/style/topics/report.md

@@ -0,0 +1,19 @@
+# 汇报总结文档指引
+
+## 适用场景
+
+周报、月报、阶段总结、复盘、述职、项目汇报等需要向读者说明进展、结果、问题和下一步的文档。
+
+## 结构建议
+
+- 结论或总体状态
+- 关键进展与成果
+- 数据、事实或案例支撑
+- 问题、风险与原因
+- 下一步计划
+
+## 表达建议
+
+- 面向管理层时先给结论，再展开细节。
+- 有指标变化时说明口径，不要只堆数字。
+- 风险、阻塞和待决策事项可以用列表或 callout，但不要过度使用。

skills/lark-doc/references/style/topics/topic-router.md

@@ -0,0 +1,16 @@
+# 文档题材路由
+
+创建文档前，如果用户没有给定固定模板，先根据用户意图识别题材，再加读对应题材指引。题材指引用于帮助选择结构、语气和信息组织方式，不是强制模板。
+
+| 用户意图 / 信号 | 题材 | 加读指引 |
+|-|-|-|
+| 周报、月报、复盘、总结、汇报、述职 | 汇报总结 | [`report.md`](report.md) |
+| 会议纪要、会议总结、讨论记录、同步会 | 会议纪要 | [`meeting-notes.md`](meeting-notes.md) |
+| 项目计划、排期、里程碑、推进方案 | 项目计划 | [`project-plan.md`](project-plan.md) |
+
+## 规则
+
+- 用户明确指定题材、结构或模板时，优先用户指定。
+- 命中多个题材时，只选择主目标对应的 1 个题材，不组合多个指引。
+- 题材指引只提供结构和表达建议，不覆盖用户给出的事实、格式和语气要求。
+- 没有明显题材时，不强行套题材，按通用创建工作流执行。

skills/lark-im/SKILL.md

@@ -67,6 +67,10 @@ Card messages (`interactive` type) are not yet supported for compact conversion
 
 `--audio` sends a voice message and supports only Opus audio files, for example `.opus` files or Ogg Opus (`.ogg`) files. For `mp3`, `wav`, or other non-Opus audio, either convert to `.opus` first and keep using `--audio`, or send the original file as an attachment with `--file`.
 
+### Sending Doc Content as a Message
+
+When sending content fetched from a Lark doc as a message, fetch the doc with --doc-format im-markdown, then send it as a message using the --markdown format. The fetched content is already in markdown; in any content-forwarding scenario, keep the fetched original text and send it in the --markdown format. Note: if the doc contains a cite tag with type="user", keep it as-is and do not strip the tag.
+
 ### Flag Types
 
 Flags support two layers: