/lark-im

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、管理表情回复、发送应用内/短信/电话加急、发送和处理交互卡片（Interactive Card）、监听卡片按钮回调（card.action.trigger）。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、搜索群、创建群聊或话题群、管理标记数据、管理 Feed 置顶（添加/移除/查询置顶会话）、管理标签数据、处理卡片回调时使用。"
metadata:
  requires:
    bins: ["lark-cli"]
  cliHelp: "lark-cli im --help"

im (v1)

**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**

Core Concepts

• **Message**: A single message in a chat, identified by `message_id` (om_xxx). Supports types: text, post, image, file, audio, video, sticker, interactive (card), share_chat, share_user, merge_forward, etc.
• **Chat**: A group chat or P2P conversation, identified by `chat_id` (oc_xxx).
• **Thread**: A reply thread under a message, identified by `thread_id` (om_xxx or omt_xxx).
• **Reaction**: An emoji reaction on a message.
• **Flag**: A bookmark on a message or thread.
• **Feed Shortcut**: A chat pinned to the current user's feed sidebar, identified by `feed_card_id` (an `oc_xxx` open_chat_id for CHAT type).
• **Feed Group**: A tag that groups feed cards in the feed list, identified by `feed_group_id` (ofg_xxx). Members are feed cards, each identified by `feed_id` + `feed_type`. Two types: `normal` (members managed explicitly) and `rule` (members auto-derived from rules).

Resource Relationships

Chat (oc_xxx)
├── Message (om_xxx)
│   ├── Thread (reply thread)
│   ├── Reaction (emoji)
│   └── Resource (image / file / video / audio)
└── Member (user / bot)

Important Notes

Identity and Token Mapping

• `--as user` means **user identity** and uses `user_access_token`. Calls run as the authorized end user, so permissions depend on both the app scopes and that user's own access to the target chat/message/resource.
• `--as bot` means **bot identity** and uses `tenant_access_token`. Calls run as the app bot, so behavior depends on the bot's membership, app visibility, availability range, and bot-specific scopes.
• If an IM API says it supports both `user` and `bot`, the token type changes who the operator is. The same API can succeed with one identity and fail with the other because owner/admin status, chat membership, tenant boundary, or app availability are checked against the current caller.

Sender Name Resolution

When fetching messages (`+chat-messages-list`, `+threads-messages-list`, `+messages-mget`, `+messages-search`), the CLI shows a display name for both user and bot senders:

• **Server-provided name**: the read APIs return `sender_name` (plus the full-i18n `sender_i18n_names` map) on each message `sender`; the CLI surfaces it as the sender's `name` for users and bots alike. No name lookup and no extra permission are needed — **no contact scope** and no `application:bot.basic_info:read`.
• **Fallback to id**: when the server does not provide a name, the sender is shown by its id and the command still exits 0. There is no contact-directory fallback.

The raw `sender_name` is not duplicated in output (its value is in `name`); the full `sender_i18n_names` map (all locales) is preserved for consumers that need a specific language, alongside an optional `open_bot_id` (`ou_`) for bot senders aligned with the message-receive event channel. System messages (`msg_type: system`) have no sender name — that is normal, not an error.

Default message enrichment (reactions / update_time)

The four message-pulling shortcuts (`+messages-mget`, `+chat-messages-list`, `+messages-search`, `+threads-messages-list`) automatically attach a `reactions` block and (for edited messages) `update_time` to each returned message — no separate `im.reactions.batch_query` call is needed. Pass `--no-reactions` to opt out. For the full contract (output shape, the `im:message.reactions:read` scope requirement, and the "missing field ≠ fetch failure" data rules), read [`references/lark-im-message-enrichment.md`](references/lark-im-message-enrichment.md).

Opt-in resource auto-download (`--download-resources`)

`+chat-messages-list`, `+messages-mget`, and `+threads-messages-list` accept `--download-resources` to save eligible attachments into `./lark-im-resources/` and add a `resources` array to each message. It is off by default; stickers are not downloadable. A failed attachment is reported on that resource without aborting the message pull. Use [`+messages-resources-download`](references/lark-im-messages-resources-download.md) for one attachment. See [`references/lark-im-message-enrichment.md`](references/lark-im-message-enrichment.md) for the output contract.

Card Messages (Interactive)

**Before sending or replying with any `interactive` card (`+messages-send` / `+messages-reply`), you MUST read [`references/card/lark-im-card-create.md`](references/card/lark-im-card-create.md) and follow its workflow.** The card JSON passed to `--msg-type interactive --content` must be the output of that workflow — never hand-write or copy a card payload.

Card messages (`interactive` type) are not yet supported for compact conversion in event subscriptions. The raw event data will be returned instead, with a hint printed to stderr.

`interactive` cards support callback events (`card.action.trigger`) — see [`references/lark-im-card-action-reply.md`](references/lark-im-card-action-reply.md).

Audio Messages

`--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 --markd