Channel Support Matrix

This page is a compact, comparable reference. For setup and configuration, see each platform's own page.

Inbound

Capability	Telegram	Discord	Slack	Feishu	WeChat
Text	✓	✓	✓	✓	✓
Images	✓	✓	✓	✓	✓
Voice (transcribed)	✓	✓	Partial	✓	✓
Files / attachments	✓	✓	✓	✓	✓
Reactions in	✓	✓	✓	✓	Limited
Thread context	n/a	✓	✓	n/a	n/a

Outbound

Capability	Telegram	Discord	Slack	Feishu	WeChat
Plain text	✓	✓	✓	✓	✓
Markdown	✓	✓ (subset)	✓ (mrkdwn)	n/a	n/a
Rich cards / Blocks	n/a	Embeds	Block Kit	Interactive cards	n/a
Voice (TTS)	✓	✓	Partial	✓	✓
File attachments	✓	✓	✓	✓	✓
Reactions out	✓	✓	✓	✓	Limited
Buttons / interactive	n/a	Buttons via embeds	Block Kit buttons	Card buttons	n/a

Auth & install

Aspect	Telegram	Discord	Slack	Feishu	WeChat
Bot creation	BotFather	Developer Portal	api.slack.com/apps	open.feishu.cn	None — uses your personal WeChat account
Auth	Bot token	Bot token + OAuth2	OAuth2 (xapp- + xoxb-)	App ID + Secret	QR scan from the WeChat mobile app
Self-host required	No	No	No	No	No
Privileged scopes	Privacy mode	Message Content Intent	Multiple per-channel scopes	App scopes + admin approval	n/a — same scope as your WeChat account

Quirks

Quirk	Where
Privacy mode in groups — bot only sees commands unless disabled	Telegram
Message Content Intent — must be enabled to see message text	Discord
QR session can be invalidated by logging the device out from your phone	WeChat
App must be admin-approved — every scope change	Feishu
Block Kit nested limits — actions max 5 buttons, sections max 10 fields	Slack

Default approval behaviour

Behaviour	Default
Approval on first reply in a new channel	On
Approval for long replies (>800 chars)	On
Approval for tool calls with writes: true	On
Approval for non-actor messages in groups	On
Auto-send reactions	On
Auto-send confirmations ("got it")	On

All adjustable per channel.

Related pages

• Remote Channels Overview
• Approval Flow
• Individual platform setup: Telegram · Discord · Slack · Feishu · WeChat