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Workflow Automation

Mention assignees and approvers in comment, review, and close messages

The comment, review, and close actions can now reference a pull request's assignees and approvers as ready-to-use @-mentions in their messages.

Use the new {{ assignees }} and {{ approvers }} variables in your comment, review, and close action messages to @-mention a pull request’s assignees and the people who approved it (for example, @alice, @bob).

They’re part of Mergify’s new safe message-templating engine. Plain {{ variable }} placeholders keep working, but richer Jinja2 expressions in these fields are now deprecated and will stop working in a future release — for example:

  • @{{ assignee | join(', @') }} → use {{ assignees }}
  • @{{ approved_reviews_by | join(', @') }} → use {{ approvers }}
  • filters and logic like {{ author | upper }} or {% for ... %} are no longer supported

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