IM Capability Comparison
You are about to connect Digital Workers to the IM your team uses every day. DingTalk, Ali DingTalk, Feishu, and WeCom each open up a different set of APIs, so the same capability does not behave identically across channels.
WinNexo offers the same capability set on all four IM channels: channel conversations, knowledge base collection, and app connections. What is actually available depends on how many APIs the IM platform exposes and which business domains its official CLI covers.
For the integration steps, see Channels. For bot credential configuration, see Platform Management. For WeCom session archive collection, see Collectors.
Capability Overview
The support status of the three capability groups across the four channels is listed below, with each cell noting the channel's limits and prerequisites. Select "Channel conversation" for the item-by-item conversation differences, or "App connection" for the business domains each channel's CLI covers.
| Capability Group | Capability | DingTalk | Ali DingTalk | Feishu | WeCom |
|---|---|---|---|---|---|
| Channel conversation | 1:1 chat bot | ✅ Supported | ✅ Supported | ✅ Supported | ✅ Supported |
| Group chat bot | ✅ Supported | ✅ Supported | ✅ Supported | ✅ Supported | |
| Knowledge base - message collectionRelies on the channel's CLI except for WeCom | 1:1 chat messages | ❌ Not supported1:1 chat messages are out of WinNexo's collection scope | ❌ Not supported1:1 chat messages are out of WinNexo's collection scope | ❌ Not supported1:1 chat messages are out of WinNexo's collection scope | ✅ Supported with limitsThe session archive service must be enabled in the WeCom admin console and the user must be within its service scope; the WeCom CLI does not open this capability to companies with more than 10 members |
| Group chat messages | ✅ Supported | ✅ Supported | ✅ Supported | ✅ Supported with limitsThe session archive service must be enabled in the WeCom admin console and the user must be within its service scope; the WeCom CLI does not open this capability to companies with more than 10 members | |
| Knowledge base - meeting collectionRelies on the channel's CLI | Meetings | ✅ Supported | ✅ Supported | ✅ Supported | ❌ Not supportedThe WeCom CLI does not open this capability to companies with more than 10 members, and it only returns basic meeting information — no original audio/video, summary, or transcript |
| Knowledge base - document collectionRelies on the channel's CLI | Single document | ✅ Supported | ✅ Supported | ❌ Not supportedFeishu documents are out of WinNexo's collection scope | ❌ Not supportedSingle documents are out of WinNexo's collection scope |
| Knowledge base / folder | ✅ Supported | ✅ Supported | ❌ Not supportedFeishu knowledge base folders are out of WinNexo's collection scope | ❌ Not supportedThe WeCom CLI provides no API for retrieving document lists | |
| App connectionBuilt-in Skills wrapped around the CLI | CLI | ✅ SupportedIn principle every operation DWS supports can be invoked, with no extra restriction from DingTalk | ✅ Supported with limitsIn principle every operation DWS supports can be invoked, but some file write operations inside the sandbox are restricted | ✅ SupportedIn principle every operation the Feishu CLI supports can be invoked, with no extra restriction from Feishu | ✅ Supported with limitsOnly companies with 10 or fewer members get full functionality; companies with more than 10 members can only use document-domain capabilities |
Channel Conversation Differences
Channel conversations run in two directions: users send messages to WinNexo from the IM side, and WinNexo pushes results back to the IM side. The channel differences for each direction are listed below.
Inbound: Users Send Messages from the IM Side
All four channels accept six message types in both 1:1 and group chats: text, image, voice, video, file, and rich text.
| Scenario | Capability | DingTalk | Ali DingTalk | Feishu | WeCom |
|---|---|---|---|---|---|
| 1:1 chat | Ask with quoted content | ✅ Supported | ✅ Supported | ✅ Supported | ✅ Supported |
| Group chat | Ask by @ mentioning the bot | ✅ Supported | ✅ Supported | ✅ Supported | ✅ Supported |
| Reply proactively without being @ mentioned | ❌ Not supported | ❌ Not supported | ❌ Not supported | ❌ Not supported | |
| @ mention the asker in the bot's reply | ✅ Supported | ✅ Supported | ✅ Supported | ✅ Supported with limitsReplies can only quote the original input instead of @ mentioning the asker directly |
Outbound: WinNexo Replies to the IM Side
| Scenario | Capability | DingTalk | Ali DingTalk | Feishu | WeCom |
|---|---|---|---|---|---|
| 1:1 chat | React with an emoji when thinking mode is off | ✅ Supported | ✅ Supported | ✅ Supported | ❌ Not supported |
| Output the thinking process and auto-collapse it | ✅ Supported | ✅ Supported | ✅ Supported | ❌ Not supportedThe thinking process is visible while the message is being generated, but it is no longer shown once output completes | |
| Use quoted messages as context | ✅ Supported with limitsQuoting a user's own message works as context; quoting a bot reply does not | ✅ Supported with limitsQuoting a user's own message works as context; quoting a bot reply only works when the bot did not output its thinking process | ✅ Supported | ✅ Supported | |
| Preview output files online | ✅ SupportedRelies on the preview capability of WinNexo's file system; files are sent as "file links" | ✅ SupportedRelies on the preview capability of WinNexo's file system; files are sent as "file links" | ✅ SupportedNative preview support with no external dependency | ✅ SupportedNative preview support with no external dependency | |
| Group chat | React with an emoji when thinking mode is off | ✅ Supported | ✅ Supported | ✅ Supported | ❌ Not supported |
| @ mention the asker in the bot's reply | ✅ Supported | ✅ Supported | ✅ Supported | ✅ Supported with limitsReplies can only quote the original input | |
| Output the thinking process | ❌ Not supported | ❌ Not supported | ❌ Not supported | ❌ Not supported | |
| Context completion | ✅ Supported, configuration requiredEnable it in the group's IM channel configuration; once enabled, the latest messages in the group are collected as context automatically | ✅ Supported, configuration requiredEnable it in the group's IM channel configuration; once enabled, the latest messages in the group are collected as context automatically | ✅ Supported, configuration requiredEnable it in the group's IM channel configuration; once enabled, the latest messages in the group are collected as context automatically | ❌ Not supportedWeCom provides no such API, so only the single message explicitly quoted with the question serves as context |
Appendix: CLI Capability Scope per IM
Knowledge base collection and app connections are both built on the official CLI of each IM. The business domains covered by each CLI are listed below. This scope is maintained together with WinNexo releases and is not updated online automatically.
DingTalk and Ali DingTalk
Official docs: DingTalk CLI, DingTalk CLI Event Subscription
| Module | Capability Scope |
|---|---|
| aisearch (AI search) | Find people by name, department, position, responsibility, reporting line, phone number, or employee ID — the first choice for "who owns XX" questions |
| aitable (AI table) | Base, data tables, fields, records, views, attachments, charts, dashboards, import/export, template search |
| attendance | Check-in results, check-in records, attendance groups, attendance rules, summary statistics, leave types, leave balances |
| calendar | Calendar lists, events, attendees, attachments, responses, meeting room booking, free/busy queries, time suggestions |
| chat (group chats and bots) | Search groups, create groups, manage members, send messages (text, Markdown, image, file), fetch messages, favorites, @me, special focus, bot broadcast and 1:1 messaging, recall, forward, quoted reply, webhooks |
| contact | User queries, employee profiles (education, family, bank card, contract), departed employee queries, departments and org structure, role queries, special focus lists |
| devdoc (open platform docs) | Search DingTalk developer documentation |
| ding (DING message) | Send and recall via in-app message, SMS, or phone call |
| doc (DingTalk Docs) | Search, browse, read/write, block-level editing, comments, create, copy, move, rename, delete, export to docx, permission management, media upload/download |
| drive (DingTalk Drive) | File lists, metadata, folder management, two-step upload, download |
| minutes (AI notes) | Notes lists, summaries, keywords, transcripts, to-dos, mind maps, speaker recognition and paragraph summaries, hot words, recording control, member permissions, upload |
| oa (OA approval) | Pending items, details, approve, reject, withdraw, approval records, submitted items, task transfer, comments, CC |
| pat (action authorization) | Browser policies, scope preview, one-time / session / permanent authorization |
| report (work reports) | Create daily and weekly reports from templates, inbox, sent items, template view, details, read statistics |
| Mailbox address queries, mail search (KQL), mail details, send mail | |
| sheet (online spreadsheets) | Worksheet CRUD, range read/write, bulk CSV write, row/column insert and delete, merge, find and replace, filter, sort, dropdown lists, conditional formatting, floating charts, export to xlsx |
| todo | Create (with priority, due date, recurrence), query, update, mark complete, delete |
| wiki (knowledge base) | Space creation, details, lists, search, member management |
| event (message events) | Listen in real time for @ mentions and messages in designated 1:1 or group chats to drive auto-replies and event-driven processing |
| agoal (goal management) | Agoal, strategy decoding, business contracts, scorecards, goal templates, weekly/monthly report submission statistics |
Feishu
Official docs: Feishu CLI
| Module | Capability Scope |
|---|---|
| Contacts | User, department, and org information queries |
| Calendar | Event management, meeting room booking, free time queries |
| Docs | Document creation, reading, editing; media management; mind notes |
| Drive | File and folder management, permission settings, comments, import/export |
| Base | Record, field, view, and dashboard management |
| Sheets | Online spreadsheet read/write operations |
| IM | Group chats, message send/receive, bots, conversation management |
| Approval | Approval workflow operations |
| Task | Task creation and management |
| Attendance | Attendance data queries |
| Mail operations | |
| AI Notes | Meeting minutes, recording transcription |
| VC | Meeting management |
| Wiki | Knowledge base content management |
| OKR | Objectives and key results management |
| Whiteboard | Collaborative whiteboard operations |
| App Center | Business operations for open platform apps |
| OpenAPI Explorer | Raw open API calls, covering capabilities beyond the modules above |
| Format Conversion | Convert between Markdown and Feishu message formats |
| Composite Workflows | Ready-to-use flows such as meeting summaries and standup reports |
WeCom
Official docs: WeCom CLI open source support
| Module | Capability | Notes |
|---|---|---|
| Contacts | Member list query | Returns userid, name, and alias of members within the visible scope |
| Messages | Send message | Text only, up to 2048 bytes |
| Messages | Fetch chat history | Paginated by conversation and time range; supports text, image, file, voice, and video |
| Messages | Conversation list | Only conversations from the last 7 days |
| Messages | Message attachment download | Retrieves file name, type, and content by file ID |
| Docs | Regular document | Create, read (Markdown), overwrite body |
| Docs | Smart document | Create (including subpages), export to Markdown |
| Docs | Online spreadsheet | Basic information, add/remove sub-sheets, update ranges, append rows at the end |
| Docs | Smart table | Sub-sheet create/update/delete, field create/update/delete, record CRUD |
| Calendar | Event management | List by time range, query details (up to 50 per call), create, update, cancel |
| Calendar | Attendees | Add and remove event attendees |
| Calendar | Free/busy query | Check the free status of up to 10 people in a given period |
| Meetings | Scheduled meetings | Create scheduled meetings, overwrite the invited member list |
| Meetings | Query and cancel | Query meeting details, list a user's meetings, cancel a meeting |
| To-dos | To-do management | List (one month before and after today, filterable by time and status), batch details (up to 20 per call), create, update, delete |
| To-dos | Status change | Accept, decline, mark complete |