feat(im): add --chat-mode topic to +chat-create

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [Unreleased]
+
+### Features
+
+- **im**: Support `--chat-mode topic` in `+chat-create` to create topic chats
+
 ## [v1.0.26] - 2026-05-08
 
 ### Features

shortcuts/im/builders_test.go

@@ -15,6 +15,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
+// mustMarshalDryRun marshals v to a JSON string, calling t.Fatalf on error.
 func mustMarshalDryRun(t *testing.T, v interface{}) string {
 	t.Helper()
 
@@ -25,6 +26,9 @@ func mustMarshalDryRun(t *testing.T, v interface{}) string {
 	return string(b)
 }
 
+// newTestRuntimeContext builds a *common.RuntimeContext backed by a cobra
+// command whose flags are populated from the provided string and bool maps,
+// for unit-testing shortcut bodies, validators, and dry-run shapes.
 func newTestRuntimeContext(t *testing.T, stringFlags map[string]string, boolFlags map[string]bool) *common.RuntimeContext {
 	t.Helper()
 
@@ -55,6 +59,9 @@ func newTestRuntimeContext(t *testing.T, stringFlags map[string]string, boolFlag
 	return &common.RuntimeContext{Cmd: cmd}
 }
 
+// newMessagesSearchTestRuntimeContext is the messages-search variant of
+// newTestRuntimeContext: registers the search-specific --page-size flag
+// before applying caller-provided values.
 func newMessagesSearchTestRuntimeContext(t *testing.T, stringFlags map[string]string, boolFlags map[string]bool) *common.RuntimeContext {
 	t.Helper()
 
@@ -86,6 +93,8 @@ func newMessagesSearchTestRuntimeContext(t *testing.T, stringFlags map[string]st
 	return &common.RuntimeContext{Cmd: cmd}
 }
 
+// TestBuildCreateChatBody verifies the request body assembled when every
+// flag is populated, including the default chat_mode="group".
 func TestBuildCreateChatBody(t *testing.T) {
 	runtime := newTestRuntimeContext(t, map[string]string{
 		"type":        "public",
@@ -94,11 +103,13 @@ func TestBuildCreateChatBody(t *testing.T) {
 		"users":       "ou_1, ou_2",
 		"bots":        "cli_1, cli_2",
 		"owner":       "ou_owner",
+		"chat-mode":   "group",
 	}, nil)
 
 	got := buildCreateChatBody(runtime)
 	want := map[string]interface{}{
 		"chat_type":   "public",
+		"chat_mode":   "group",
 		"name":        "Team Chat",
 		"description": "daily sync",
 		"user_id_list": []string{
@@ -116,6 +127,43 @@ func TestBuildCreateChatBody(t *testing.T) {
 	}
 }
 
+// TestBuildCreateChatBody_TopicMode verifies that --chat-mode topic produces
+// chat_mode="topic" in the request body, the topic-chat creation path.
+func TestBuildCreateChatBody_TopicMode(t *testing.T) {
+	runtime := newTestRuntimeContext(t, map[string]string{
+		"type":      "public",
+		"name":      "Topic Group",
+		"chat-mode": "topic",
+	}, nil)
+
+	got := buildCreateChatBody(runtime)
+	want := map[string]interface{}{
+		"chat_type": "public",
+		"chat_mode": "topic",
+		"name":      "Topic Group",
+	}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("buildCreateChatBody() = %#v, want %#v", got, want)
+	}
+}
+
+// TestBuildCreateChatBody_EmptyChatModeFallsBack pins the defensive fallback:
+// explicit `--chat-mode ""` slips past validateEnumFlags (which skips empty
+// values), but buildCreateChatBody must still emit chat_mode="group" rather
+// than an empty string with unspecified server semantics.
+func TestBuildCreateChatBody_EmptyChatModeFallsBack(t *testing.T) {
+	runtime := newTestRuntimeContext(t, map[string]string{
+		"type":      "public",
+		"name":      "Fallback Test",
+		"chat-mode": "",
+	}, nil)
+
+	got := buildCreateChatBody(runtime)
+	if got["chat_mode"] != "group" {
+		t.Fatalf("buildCreateChatBody() chat_mode = %#v, want \"group\"", got["chat_mode"])
+	}
+}
+
 // TestSplitMembers verifies the delegation wrapper; core logic is tested in TestSplitCSV. [#17]
 func TestSplitMembers(t *testing.T) {
 	got := common.SplitCSV(" ou_1, ,ou_2 ,, ou_3 ")
@@ -591,10 +639,12 @@ func TestMessagesSearchPaginationConfig(t *testing.T) {
 	})
 }
 
+// TestShortcutDryRunShapes verifies that each shortcut's DryRun function
+// produces the expected API path, query parameters, and request body.
 func TestShortcutDryRunShapes(t *testing.T) {
 	t.Run("ImChatCreate dry run includes params and body", func(t *testing.T) {
 		cmd := &cobra.Command{Use: "test"}
-		for _, name := range []string{"type", "name", "users", "owner"} {
+		for _, name := range []string{"type", "name", "users", "owner", "chat-mode"} {
 			cmd.Flags().String(name, "", "")
 		}
 		cmd.Flags().Bool("set-bot-manager", false, "")
@@ -604,9 +654,10 @@ func TestShortcutDryRunShapes(t *testing.T) {
 		_ = cmd.Flags().Set("users", "ou_1,ou_2")
 		_ = cmd.Flags().Set("owner", "ou_owner")
 		_ = cmd.Flags().Set("set-bot-manager", "true")
+		_ = cmd.Flags().Set("chat-mode", "group")
 		runtime := common.TestNewRuntimeContextWithIdentity(cmd, nil, "bot")
 		got := mustMarshalDryRun(t, ImChatCreate.DryRun(context.Background(), runtime))
-		if !strings.Contains(got, `"/open-apis/im/v1/chats"`) || !strings.Contains(got, `"set_bot_manager":true`) || !strings.Contains(got, `"chat_type":"public"`) {
+		if !strings.Contains(got, `"/open-apis/im/v1/chats"`) || !strings.Contains(got, `"set_bot_manager":true`) || !strings.Contains(got, `"chat_type":"public"`) || !strings.Contains(got, `"chat_mode":"group"`) {
 			t.Fatalf("ImChatCreate.DryRun() = %s", got)
 		}
 	})

shortcuts/im/im_chat_create.go

@@ -16,10 +16,14 @@ import (
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 )
 
+// ImChatCreate is the +chat-create shortcut: creates a group chat or topic
+// chat via POST /open-apis/im/v1/chats. Supports user and bot identities;
+// --chat-mode selects group (default) or topic; --type selects private
+// (default) or public; --users/--bots invite members at creation.
 var ImChatCreate = common.Shortcut{
 	Service:     "im",
 	Command:     "+chat-create",
-	Description: "Create a group chat; user/bot; creates private/public chats, invites users/bots, optionally sets bot manager",
+	Description: "Create a group chat or topic chat; user/bot; --chat-mode group|topic; private/public; invites users/bots; optionally sets bot manager",
 	Risk:        "write",
 	UserScopes:  []string{"im:chat:create_by_user"},
 	BotScopes:   []string{"im:chat:create"},
@@ -32,6 +36,7 @@ var ImChatCreate = common.Shortcut{
 		{Name: "bots", Desc: "comma-separated bot app IDs (cli_xxx) to invite, max 5"},
 		{Name: "owner", Desc: "owner open_id (ou_xxx); defaults to bot (--as bot) or authorized user (--as user)"},
 		{Name: "type", Default: "private", Desc: "chat type", Enum: []string{"private", "public"}},
+		{Name: "chat-mode", Default: "group", Desc: "group mode (\"topic\" creates a topic chat; differs from a normal group in topic-message mode)", Enum: []string{"group", "topic"}},
 		{Name: "set-bot-manager", Type: "bool", Desc: "set the bot that creates this chat as manager (bot identity only)"},
 	},
 	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
@@ -141,9 +146,18 @@ var ImChatCreate = common.Shortcut{
 	},
 }
 
+// buildCreateChatBody assembles the POST /open-apis/im/v1/chats request
+// body. chat_mode is always emitted; an empty value (which can slip past
+// validateEnumFlags, since that helper skips empty strings) is pinned to
+// "group" so the wire never carries an unspecified chat_mode value.
 func buildCreateChatBody(runtime *common.RuntimeContext) map[string]interface{} {
+	chatMode := runtime.Str("chat-mode")
+	if chatMode == "" {
+		chatMode = "group"
+	}
 	body := map[string]interface{}{
 		"chat_type": runtime.Str("type"),
+		"chat_mode": chatMode,
 	}
 	if name := runtime.Str("name"); name != "" {
 		body["name"] = name

skills/lark-im/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: lark-im
 version: 1.0.0
-description: "飞书即时通讯：收发消息和管理群聊。发送和回复消息、搜索聊天记录、管理群聊成员、上传下载图片和文件（支持大文件分片下载）、管理表情回复。当用户需要发消息、查看或搜索聊天记录、下载聊天中的文件、查看群成员时使用。"
+description: "飞书即时通讯：收发消息和管理群聊。发送和回复消息、搜索聊天记录、管理群聊成员、上传下载图片和文件（支持大文件分片下载）、管理表情回复。当用户需要发消息、查看或搜索聊天记录、下载聊天中的文件、查看群成员、创建群聊或话题群时使用。"
 metadata:
   requires:
     bins: ["lark-cli"]
@@ -56,7 +56,7 @@ Shortcut 是对常用操作的高级封装（`lark-cli im +<verb> [flags]`）。
 
 | Shortcut | 说明 |
 |----------|------|
-| [`+chat-create`](references/lark-im-chat-create.md) | Create a group chat; user/bot; creates private/public chats, invites users/bots, optionally sets bot manager |
+| [`+chat-create`](references/lark-im-chat-create.md) | Create a group chat or topic chat; user/bot; `--chat-mode` (`group` or `topic`); private/public; invites users/bots; optionally sets bot manager |
 | [`+chat-messages-list`](references/lark-im-chat-messages-list.md) | List messages in a chat or P2P conversation; user/bot; accepts --chat-id or --user-id, resolves P2P chat_id, supports time range/sort/pagination |
 | [`+chat-search`](references/lark-im-chat-search.md) | Search visible group chats by keyword and/or member open_ids (e.g. look up chat_id by group name); user/bot; supports member/type filters, sorting, and pagination |
 | [`+chat-update`](references/lark-im-chat-update.md) | Update group chat name or description; user/bot; updates a chat's name or description |

skills/lark-im/references/lark-im-chat-create.md

@@ -2,7 +2,7 @@
 
 > **Prerequisite:** Read [`../lark-shared/SKILL.md`](../../lark-shared/SKILL.md) first to understand authentication, global parameters, and safety rules.
 
-Create a group chat. Supports both user identity (`--as user`) and bot identity (`--as bot`). You can specify the group name, description, members (users/bots), owner, and chat type (private/public).
+Create a group chat. Supports both user identity (`--as user`) and bot identity (`--as bot`). You can specify the group name, description, members (users/bots), owner, chat type (private/public), and group mode. Set `--chat-mode topic` to create a topic chat.
 
 This skill maps to the shortcut: `lark-cli im +chat-create` (internally calls `POST /open-apis/im/v1/chats`).
 
@@ -18,6 +18,9 @@ lark-cli im +chat-create --name "My Group"
 # Create a public group (name is required and must be at least 2 characters)
 lark-cli im +chat-create --name "Public Group" --type public
 
+# Create a topic chat; use --type public if discoverability is required
+lark-cli im +chat-create --name "Topic Group" --chat-mode topic --type public
+
 # Specify the group owner
 lark-cli im +chat-create --name "My Group" --owner ou_xxx
 
@@ -56,11 +59,14 @@ lark-cli im +chat-create --name "My Group" --dry-run
 | `--bots <ids>` | No | Up to 5, format `cli_xxx` | Comma-separated bot app IDs |
 | `--owner <open_id>` | No | Format `ou_xxx` | Owner open_id (defaults to the bot when using `--as bot`, or the authorized user when using `--as user`) |
 | `--type <type>` | No | `private` (default) or `public` | Group type |
+| `--chat-mode <mode>` | No | `group` (default) or `topic` | Group mode; `topic` creates a topic chat (not the same as `group_message_type=thread`) |
 | `--set-bot-manager` | No | - | Set the creating bot as a group manager (only effective with `--as bot`) |
 | `--format json` | No | - | Output as JSON |
 | `--as <identity>` | No | `bot` or `user` | Identity type |
 | `--dry-run` | No | - | Preview the request without executing it |
 
+> **`--chat-mode topic` vs "normal group with topic-message mode"**: `--chat-mode topic` here creates a 话题群 — the entire group is a topic chat. This is different from "normal group (`chat_mode=group`) + topic-message mode (`group_message_type=thread`)". This CLI exposes only `chat_mode`; `group_message_type` is intentionally not surfaced.
+
 ## AI Usage Guidance
 
 ### When using `--as bot`