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SKILL verified MIT Self-run

Slack

skill-ericwang915-pythonclaw-slack · by ericwang915

Slack API integration — send/read messages, react to messages, pin items, and fetch member info. Use when: user wants to send a Slack message, check Slack channels, react to a message, or manage pins. NOT for: Discord (use Discord channel), email (use email skill), or real-time Slack event streaming.

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Install

$ agentstack add skill-ericwang915-pythonclaw-slack

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

Slack

Interact with Slack workspaces via the Slack Web API.

When to Use

✅ USE this skill when:

  • "Send a message to #general"
  • "React to that Slack message with a thumbs up"
  • "Read recent messages from #engineering"
  • "Pin this message in the channel"
  • "Who is user U12345?"
  • "List pinned items in #announcements"

When NOT to Use

❌ DON'T use this skill when:

  • Discord messaging → use the Discord channel directly
  • Email → use email skill
  • Real-time Slack event listening → requires a Slack app with event subscriptions
  • File uploads → use Slack's files.upload API directly

Setup

  1. Create a Slack app at https://api.slack.com/apps
  2. Add Bot Token Scopes: chat:write, channels:read, channels:history, reactions:write, reactions:read, pins:write, pins:read, users:read
  3. Install the app to your workspace
  4. Copy the Bot User OAuth Token (starts with xoxb-)
  5. Configure in pythonclaw.json:
"skills": {
  "slack": {
    "token": "xoxb-your-bot-token"
  }
}

Commands

Send a message

python {skill_path}/slack_api.py send --channel "#general" --text "Hello from PythonClaw"

Read recent messages

python {skill_path}/slack_api.py read --channel "#general" --limit 10

React to a message

python {skill_path}/slack_api.py react --channel "C123" --timestamp "1712023032.1234" --emoji "white_check_mark"

Pin a message

python {skill_path}/slack_api.py pin --channel "C123" --timestamp "1712023032.1234"

Get member info

python {skill_path}/slack_api.py user --user-id "U123"

List channels

python {skill_path}/slack_api.py channels

Notes

  • Channel names can be used with # prefix or as channel IDs (C...)
  • Message timestamps serve as unique message IDs in Slack
  • Rate limits: ~1 request/second for most methods
  • Bot must be invited to channels to read/post messages

Resources

| File | Description | |------|-------------| | slack_api.py | Slack Web API client |

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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