slack - SKILL.md Agent Skill

name: slack description: "Send messages, react, manage pins, and interact with Slack channels and DMs via the Slack API." metadata: version: "1.0.0" requires: env: ["SLACK_BOT_TOKEN"]

Slack Skill

Interact with Slack using the Slack Web API. Requires a bot token with appropriate scopes.

Setup

Create a Slack app at https://api.slack.com/apps
Add Bot Token Scopes: chat:write, reactions:write, reactions:read, pins:write, pins:read, channels:history, users:read
Install the app to your workspace
Set SLACK_BOT_TOKEN environment variable

Common Operations

Send a message

curl -s -X POST "https://slack.com/api/chat.postMessage" \
  -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"channel": "C123", "text": "Hello from Agno!"}'

React to a message

curl -s -X POST "https://slack.com/api/reactions.add" \
  -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"channel": "C123", "timestamp": "1712023032.1234", "name": "white_check_mark"}'

Read recent messages

curl -s "https://slack.com/api/conversations.history?channel=C123&limit=20" \
  -H "Authorization: Bearer $SLACK_BOT_TOKEN"

Edit a message

curl -s -X POST "https://slack.com/api/chat.update" \
  -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"channel": "C123", "ts": "1712023032.1234", "text": "Updated text"}'

Delete a message

curl -s -X POST "https://slack.com/api/chat.delete" \
  -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"channel": "C123", "ts": "1712023032.1234"}'

Pin a message

curl -s -X POST "https://slack.com/api/pins.add" \
  -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"channel": "C123", "timestamp": "1712023032.1234"}'

Get user info

curl -s "https://slack.com/api/users.info?user=U123" \
  -H "Authorization: Bearer $SLACK_BOT_TOKEN"

Ideas

React with checkmark to mark completed tasks
Pin key decisions or weekly status updates
Send deployment notifications to a channel