Post workflow messages to Slack
Workflows can now post to Slack, so a failed run or a new batch reaches your team's channel without anyone watching the dashboard.
- Added a Send Slack Message action, available to every organization: paste a Slack incoming webhook URL, write the message with
{{variable}}placeholders, and it posts whenever the workflow fires. - Improved Slack and Discord messages: run data can no longer trigger channel-wide mentions or disguised links, rate limits are retried automatically, and the step error now names the reason Slack or Discord gave.
- Added a username and avatar override to the Discord action, and webhook URLs are now hidden from members with the Viewer role and from execution logs.
