Skill: charlie-morrison/slack-messaging (version 1.0.0)

--- name: slack-integration description: Slack messaging — send messages, manage channels, upload files, add reactions, and automate team notifications via CLI and API. metadata: {"openclaw":{"requires":{"env":["SLACK_TOKEN"]}}} --- # Slack Integration Send messages, manage channels, upload files, and automate notifications in Slack workspaces using the Web API. Works with bot tokens or user tokens. ## Setup ```bash # 1. Create a Slack App: https://api.slack.com/apps → Create New App # 2. Add scopes under OAuth & Permissions: # Bot Token Scopes: chat:write, channels:read, channels:history, # files:write, reactions:write, users:read # 3. Install to workspace → copy Bot User OAuth Token export SLACK_TOKEN="xoxb-..." # Bot token (starts with xoxb-) ``` For user-level actions (DMs to yourself, custom status), use a User OAuth Token (`xoxp-...`) instead. ## Sending Messages ```bash # Simple text message curl -s -X POST https://slack.com/api/chat.postMessage \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"channel": "C0123ABCDEF", "text": "Deploy complete ✓"}' # With rich formatting (Block Kit) curl -s -X POST https://slack.com/api/chat.postMessage \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{ "channel": "C0123ABCDEF", "blocks": [ {"type": "header", "text": {"type": "plain_text", "text": "Deploy Report"}}, {"type": "section", "text": {"type": "mrkdwn", "text": "*Status:* ✅ Success\n*Version:* v2.1.0\n*Duration:* 45s"}} ] }' # Reply in thread curl -s -X POST https://slack.com/api/chat.postMessage \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"channel": "C0123ABCDEF", "thread_ts": "1234567890.123456", "text": "Fix deployed"}' # Schedule a message (Unix timestamp) curl -s -X POST https://slack.com/api/chat.scheduleMessage \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"channel": "C0123ABCDEF", "text": "Standup time!", "post_at": 1700000000}' # Update a message curl -s -X POST https://slack.com/api/chat.update \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"channel": "C0123ABCDEF", "ts": "1234567890.123456", "text": "Updated text"}' ``` ## Channels ```bash # List channels (paginated — follow next_cursor) curl -s "https://slack.com/api/conversations.list?types=public_channel,private_channel&limit=200" \ -H "Authorization: Bearer $SLACK_TOKEN" | jq '.channels[] | {id, name, num_members}' # Get channel info curl -s "https://slack.com/api/conversations.info?channel=C0123ABCDEF" \ -H "Authorization: Bearer $SLACK_TOKEN" # Channel history (recent messages) curl -s "https://slack.com/api/conversations.history?channel=C0123ABCDEF&limit=10" \ -H "Authorization: Bearer $SLACK_TOKEN" | jq '.messages[] | {ts, text, user}' # Find channel by name curl -s "https://slack.com/api/conversations.list?types=public_channel&limit=999" \ -H "Authorization: Bearer $SLACK_TOKEN" | jq '.channels[] | select(.name=="general") | .id' # Create a channel curl -s -X POST https://slack.com/api/conversations.create \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"name": "incident-2026-04", "is_private": false}' # Set channel topic curl -s -X POST https://slack.com/api/conversations.setTopic \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"channel": "C0123ABCDEF", "topic": "Production incident — DB latency spike"}' ``` ## Files ```bash # Upload a file (v2 API) curl -s -X POST https://slack.com/api/files.getUploadURLExternal \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"filename": "report.csv", "length": 1024}' \ | jq '{upload_url, file_id}' # Then POST the file content to upload_url, then call files.completeUploadExternal # Share a remote file link curl -s -X POST https://slack.com/api/files.remote.add \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"external_id": "report-1", "external_url": "https://example.com/report.pdf", "title": "Monthly Report"}' ``` ## Reactions & Users ```bash # Add reaction to a message curl -s -X POST https://slack.com/api/reactions.add \ -H "Authorization: Bearer $SLACK_TOKEN" \ -H "Content-Type: application/json" \ -d '{"channel": "C0123ABCDEF", "timestamp": "1234567890.123456", "name": "white_check_mark"}' # List users curl -s "https://slack.com/api/users.list?limit=200" \ -H "Authorization: Bearer $SLACK_TOKEN" | jq '.members[] | {id, name, real_name}' # User info by ID curl -s "https://slack.com/api/users.info?user=U0123ABCDEF" \ -H "Authorization: Bearer $SLACK_TOKEN" | jq '.user | {name, real_name, tz}' # Look up user by email curl -s "https://slack.com/api/users.lookupByEmail?email=[REDACTED_SECRET]" \ -H "Authorization: Bearer $SLACK_TOKEN" | jq '.user.id' ``` ## Common Workflows **CI/CD notification:** After a deploy, post a formatted message to #deployments with version, commit, and status. On failure, create a thread with the error log. **Incident channel:** Create a private channel named `incident-YYYY-MM-DD-<slug>`, set the topic, invite responders, post the initial report with severity and affected services. **Standup reminder:** Schedule a daily message at 9:30 AM to #team with a prompt template. Collect threaded replies. **Error alert:** When Sentry fires a webhook, post the error title, count, and link to the relevant channel. Add a 🔴 reaction for critical, 🟡 for warning. ## Notes - Bot tokens (`xoxb-`) can only post to channels the bot has been invited to - Rate limits: ~1 msg/sec per channel (Tier 2); respect `Retry-After` headers - Channel IDs (not names) are required for most API calls — look them up first - For rich messages, use [Block Kit Builder](https://app.slack.com/block-kit-builder) to design layouts - `mrkdwn` (Slack's markdown) uses `*bold*`, `_italic_`, `~strike~`, `` `code` ``, `>quote` - DMs: use `conversations.open` with user IDs to get the DM channel ID, then post normally


Security scan verdicts — ClawScan: clean | static analysis: clean | VirusTotal: clean | SkillSpector: clean (LOW)