PR Babysitter

Objective

Babysit a PR persistently until one of these terminal outcomes occurs:

• The PR is merged or closed.
• A situation requires user help (for example CI infrastructure issues, repeated flaky failures after retry budget is exhausted, permission problems, or ambiguity that cannot be resolved safely).
• Optional handoff milestone: the PR is currently green + mergeable + review-clean. Treat this as a progress state, not a watcher stop, so late-arriving review comments are still surfaced promptly while the PR remains open.

Do not stop merely because a single snapshot returns idle while checks are still pending.

Inputs

Accept any of the following:

• No PR argument: infer the PR from the current branch (--pr auto)
• PR number
• PR URL

Core Workflow