ga-pr - Start Follow-up Work on an Existing PR

Kick off an agent task tied to an existing PR or branch. Reuses the existing tmux session/clone for that PR if one already exists.

Steps

1. Get the PR or branch and task from the user's message.

   • Accept a PR number, PR URL, or branch name.
   • If the task is merge-conflict resolution, use --merge-conflicts.

2. Run ga-pr. Default harness is Pi, so omit the harness flag for normal use:

   ga-pr <pr-number-or-url-or-branch> "<task>"
   

   For merge conflicts:

   ga-pr --merge-conflicts <pr-number-or-url-or-branch>
   

   If the user explicitly asks for Claude Code, pass --harness c:

   ga-pr --harness c <pr-number-or-url-or-branch> "<task>"
   

3. Report back with the session, branch, and attach command printed by the script.

Behavior

• Resolves PR inputs through gh pr view.
• Uses the same session naming convention as ga: <repo>-<branch-slug>.
• If a matching tmux session already exists, sends the task into that session instead of creating a duplicate.
• If the clone exists but the session does not, starts a new session in the existing clone.
• If neither exists, clones the repo, checks out the PR branch, and starts the agent.

Rules

• Keep the task concise and direct.
• For conflict resolution, include that the agent should ask before making ambiguous choices.
• Do not use /create-draft-pr; this command is for updating an existing PR branch.