slack-post-message

Post or update Slack messages using a compact action surface for agent notifications.

Why install it

Many useful agents need to report status or deliver results back to people. This tool gives agents a portable Slack notification primitive instead of custom Slack client code inside every app.

Inputs

• action: post_message or update_message
• channel: Slack channel ID
• text: primary message text
• thread_ts: optional thread timestamp for replies
• ts: message timestamp for update actions
• blocks: optional Slack block kit payload

Outputs

• action: executed action name
• channel: Slack channel ID
• ts: created or updated message timestamp
• message: normalized Slack message payload
• metadata: request metadata such as whether a thread was targeted

Environment variables

• SLACK_BOT_TOKEN: required bot token
• SLACK_API_BASE_URL: optional API base URL override

Local development

The source code for this tool can be found here

Test:

npm test

Build:

npm run build

Example invocation

printf '%s' '{"action":"post_message","channel":"C123456","text":"AgentPM Milestone 2 shipped"}' | node dist/index.js