fix docs fetch/update ergonomics

shortcuts/doc/docs_fetch_v2.go

@@ -38,9 +38,6 @@
 		return err
 	}
 	if _, err := parseDocumentRef(runtime.Str("doc")); err != nil {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "invalid --doc: %v", err).WithParam("--doc")
-	}
-	if err := validateFetchDetail(runtime); err != nil {
 		return err
 	}
 	if err := validateReadModeFlags(runtime); err != nil {
@@ -71,6 +68,9 @@
 	if err != nil {
 		return err
 	}
+	if warning := addFetchDetailDowngradeWarning(runtime, data); warning != "" && runtime.Format == "pretty" {
+		fmt.Fprintf(runtime.IO().ErrOut, "warning: %s\n", warning)
+	}
 
 	runtime.OutFormatRaw(data, nil, func(w io.Writer) {
 		if doc, ok := data["document"].(map[string]interface{}); ok {
@@ -90,7 +90,7 @@
 		body["revision_id"] = v
 	}
 
-	detail := runtime.Str("detail")
+	detail := effectiveFetchDetail(runtime)
 	switch detail {
 	case "", "simple":
 		body["export_option"] = map[string]interface{}{
@@ -146,17 +146,33 @@
 	return ro
 }
 
-// validateFetchDetail 非 xml 格式（markdown）不承载 block_id 与样式属性，拒绝 with-ids/full。
-func validateFetchDetail(runtime *common.RuntimeContext) error {
+// effectiveFetchDetail degrades detail options that cannot be represented by
+// non-XML exports. The original flag value is left intact so callers can still
+// surface an explicit warning in execute output.
+func effectiveFetchDetail(runtime *common.RuntimeContext) string {
 	format := strings.TrimSpace(runtime.Str("doc-format"))
 	detail := strings.TrimSpace(runtime.Str("detail"))
 	if format == "" || format == "xml" {
-		return nil
+		return detail
 	}
 	if detail == "with-ids" || detail == "full" {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "--detail %s is only supported with --doc-format xml; %s output has no block ids, use --detail simple or switch to --doc-format xml", detail, format).WithParam("--detail")
+		return "simple"
 	}
-	return nil
+	return detail
+}
+
+func addFetchDetailDowngradeWarning(runtime *common.RuntimeContext, data map[string]interface{}) string {
+	format := strings.TrimSpace(runtime.Str("doc-format"))
+	detail := strings.TrimSpace(runtime.Str("detail"))
+	if format == "" || format == "xml" {
+		return ""
+	}
+	if detail != "with-ids" && detail != "full" {
+		return ""
+	}
+	warning := fmt.Sprintf("--detail %s is only supported with --doc-format xml; returning %s output and ignoring the unsupported detail option", detail, format)
+	appendDocWarning(data, warning)
+	return warning
 }
 
 // validateReadModeFlags 客户端前置校验，服务端也会再校验一次。

shortcuts/doc/docs_fetch_v2_test.go

@@ -5,9 +5,12 @@ package doc
 
 import (
 	"context"
+	"encoding/json"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/httpmock"
 	"github.com/larksuite/cli/shortcuts/common"
 	"github.com/spf13/cobra"
 )
@@ -96,6 +99,126 @@ func TestDocsFetchAPIVersionV1StillUsesV2Endpoint(t *testing.T) {
 	}
 }
 
+func TestDocsFetchMarkdownDetailDowngradesToSimple(t *testing.T) {
+	t.Parallel()
+
+	for _, detail := range []string{"with-ids", "full"} {
+		t.Run(detail, func(t *testing.T) {
+			t.Parallel()
+
+			runtime := newFetchShortcutTestRuntime(t, "", map[string]string{
+				"doc-format": "markdown",
+				"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)
+			}
+		})
+	}
+}
+
+func TestDocsFetchMarkdownDetailDowngradeWarnsInOutput(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, docsTestConfigWithAppID("docs-fetch-detail-warning"))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/docs_ai/v1/documents/doxcnFetchWarning/fetch",
+		Body: map[string]interface{}{
+			"code": 0,
+			"msg":  "ok",
+			"data": map[string]interface{}{
+				"document": map[string]interface{}{
+					"document_id": "doxcnFetchWarning",
+					"revision_id": float64(1),
+					"content":     "# hello",
+				},
+			},
+		},
+	})
+
+	err := mountAndRunDocs(t, DocsFetch, []string{
+		"+fetch",
+		"--doc", "doxcnFetchWarning",
+		"--doc-format", "markdown",
+		"--detail", "with-ids",
+		"--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{})
+	warnings, _ := data["warnings"].([]interface{})
+	if len(warnings) != 1 {
+		t.Fatalf("warnings = %#v, want one downgrade warning", data["warnings"])
+	}
+	if got, _ := warnings[0].(string); !strings.Contains(got, "returning markdown output") || !strings.Contains(got, "ignoring the unsupported detail option") {
+		t.Fatalf("unexpected warning: %q", got)
+	}
+}
+
+func TestDocsFetchMarkdownDetailDowngradeWarnsInPrettyOutput(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	f, stdout, stderr, reg := cmdutil.TestFactory(t, docsTestConfigWithAppID("docs-fetch-detail-pretty-warning"))
+	reg.Register(&httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/docs_ai/v1/documents/doxcnFetchPrettyWarning/fetch",
+		Body: map[string]interface{}{
+			"code": 0,
+			"msg":  "ok",
+			"data": map[string]interface{}{
+				"document": map[string]interface{}{
+					"document_id": "doxcnFetchPrettyWarning",
+					"revision_id": float64(1),
+					"content":     "# hello",
+				},
+			},
+		},
+	})
+
+	err := mountAndRunDocs(t, DocsFetch, []string{
+		"+fetch",
+		"--doc", "doxcnFetchPrettyWarning",
+		"--doc-format", "markdown",
+		"--detail", "full",
+		"--format", "pretty",
+		"--as", "bot",
+	}, f, stdout)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if got := stdout.String(); got != "# hello\n" {
+		t.Fatalf("stdout = %q, want markdown content only", got)
+	}
+	if got := stderr.String(); !strings.Contains(got, "warning: --detail full is only supported with --doc-format xml") ||
+		!strings.Contains(got, "returning markdown output") ||
+		!strings.Contains(got, "ignoring the unsupported detail option") {
+		t.Fatalf("stderr missing downgrade warning: %q", got)
+	}
+}
+
 func TestDocsFetchRejectsLegacyFlags(t *testing.T) {
 	tests := []struct {
 		name     string

shortcuts/doc/helpers.go

@@ -91,3 +91,22 @@ func buildDriveRouteExtra(docID string) (string, error) {
 	}
 	return string(extra), nil
 }
+
+func appendDocWarning(data map[string]interface{}, warning string) {
+	if data == nil {
+		return
+	}
+	if strings.TrimSpace(warning) == "" {
+		return
+	}
+	switch existing := data["warnings"].(type) {
+	case []interface{}:
+		data["warnings"] = append(existing, warning)
+	case []string:
+		data["warnings"] = append(existing, warning)
+	case nil:
+		data["warnings"] = []string{warning}
+	default:
+		data["warnings"] = []interface{}{existing, warning}
+	}
+}

shortcuts/doc/helpers_test.go

@@ -4,6 +4,7 @@
 package doc
 
 import (
+	"reflect"
 	"strings"
 	"testing"
 )
@@ -88,3 +89,51 @@ func TestBuildDriveRouteExtraEscapesJSON(t *testing.T) {
 		t.Fatalf("buildDriveRouteExtra() = %q, want %q", got, want)
 	}
 }
+
+func TestAppendDocWarning(t *testing.T) {
+	t.Parallel()
+
+	appendDocWarning(nil, "ignored")
+
+	empty := map[string]interface{}{}
+	appendDocWarning(empty, "   ")
+	if _, ok := empty["warnings"]; ok {
+		t.Fatalf("blank warning should be ignored: %#v", empty)
+	}
+
+	tests := []struct {
+		name string
+		data map[string]interface{}
+		want interface{}
+	}{
+		{
+			name: "missing warnings",
+			data: map[string]interface{}{},
+			want: []string{"new warning"},
+		},
+		{
+			name: "string slice warnings",
+			data: map[string]interface{}{"warnings": []string{"old warning"}},
+			want: []string{"old warning", "new warning"},
+		},
+		{
+			name: "interface slice warnings",
+			data: map[string]interface{}{"warnings": []interface{}{"old warning"}},
+			want: []interface{}{"old warning", "new warning"},
+		},
+		{
+			name: "scalar warning",
+			data: map[string]interface{}{"warnings": "old warning"},
+			want: []interface{}{"old warning", "new warning"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			appendDocWarning(tt.data, "new warning")
+			if got := tt.data["warnings"]; !reflect.DeepEqual(got, tt.want) {
+				t.Fatalf("warnings = %#v, want %#v", got, tt.want)
+			}
+		})
+	}
+}

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

@@ -113,6 +113,8 @@ lark-cli docs +update --api-version v2 --doc "<doc_id>" --command block_replace
   --content '<p>替换后的段落内容</p>'
 ```
 
+> `block_replace` 由服务端执行整块替换，目标 block 的 ID 不保证在替换后继续可用。后续如果还要在替换后的块附近继续 `block_insert_after`、`range` 或其他 block 级操作，先重新 `docs +fetch --detail with-ids` 获取最新 block ID，不要复用旧 ID。
+
 ### block_delete — 删除指定 block
 
 ```bash
@@ -234,6 +236,7 @@ lark-cli docs +update --api-version v2 --doc "<doc_id>" --command str_replace \
 - **保护不可重建的内容**：图片、画板、电子表格等以 token 形式存储，替换时避开这些 block
 - **str_replace 的 replacement 支持富文本**：可以用行内标签 `<b>`、`<a>`、`<cite>`、`<latex>` 等替换普通文本为富文本
 - **同一 block 只能被 replace 一次**：多次修改同一 block 请合并为一次 block_replace
+- **block_replace 后重新获取 ID**：`block_replace` 成功后旧 block ID 不保证继续可用；继续做相邻块操作前，重新 `docs +fetch --detail with-ids`
 - **block_delete 支持批量**：用逗号分隔多个 block_id 一次删除
 - **复杂结构重组**：将多个段落转换为 grid / table 等复杂布局时，分步操作比 overwrite 更安全：
   1. 用 `block_insert_after` 在目标位置插入新的富文本结构

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

@@ -77,6 +77,10 @@ p, h1-h9, ul, ol, li, table, thead, tbody, tr, th, td, blockquote, pre, code, hr
    </ul>
    ```
 
+## 代码块
+- 代码块必须写成 `<pre lang="xxx" caption="可选说明"><code>代码内容</code></pre>`。
+- 不要将代码文本直接放在 `<pre>` 下；应放在内层 `<code>` 中。
+
 
 ## 用户名写入规则