slack-bot

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

1. Verify Slack token is configured
2. Identify target channel or user
3. Perform the messaging operation
4. 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