By name: slack-bot description: Send messages, monitor channels, react to posts, and manage Slack workflows. Use when the user mentions Slack, team chat, channel messages, or notifications. version: "1.0.0" license: MIT compatibility: Requires Slack Bot Token with chat:write, channels:read, channels:history scopes metadata: author: hermeshub hermes: tags: [slack, messaging, team-chat, notifications] category: communication required_environment_variables:
- name: SLACK_BOT_TOKEN prompt: Slack Bot Token (starts with xoxb-) help: Create a Slack app at https://api.slack.com/apps required_for: full functionality
Slack Bot
Team communication through Slack's API.
When to Use
- User wants to send or read Slack messages
- User needs channel monitoring or alerts
- User wants to post status updates or reports
- User asks about team conversations
Procedure
- Verify Slack token is configured
- Identify target channel or user
- Perform the messaging operation
- Confirm delivery
Operations
- Send message to channel or DM
- Read recent messages from a channel
- React to messages with emoji
- Create and manage threads
- Post formatted blocks (rich text, buttons, etc.)
- Schedule messages for later delivery
- List channels and members
Message Formatting
Use Slack's Block Kit for rich messages:
- Text sections with markdown
- Dividers and headers
- Button actions
- Code blocks
Pitfalls
- Bot must be invited to channels to read/write
- Rate limits: 1 message per second per channel
- File uploads require files:write scope
- Thread replies need the parent message timestamp
Verification
- Message appears in target channel
- Reactions are visible on the message
- Scheduled messages show in Slack's scheduled list