Slack Webhook

Post messages to Slack through an incoming webhook URL.

Purpose

This skill is for sending Slack notifications with Slack Incoming Webhooks by calling the webhook URL directly.

Incoming webhooks post to the Messages surface. They do not create modals or Home tabs.

Inputs:

• message text, or a complete Slack webhook JSON payload
• Slack incoming webhook URL from SLACK_WEBHOOK_URL, --webhook-url-stdin, or the locally saved URL
• optional Block Kit blocks
• optional thread_ts, unfurl_links, and unfurl_media

Output: