Arc Create Pull Request

• If no changes exist between the current branch and base branch.
• If the user only wants a high-level explanation without PR creation.

Inputs and Assumptions

• Workspace is a git repository.
• Base branch is typically main unless otherwise specified.
• Follow:
  • knowledge/guidelines/pr-creation-guidelines.md
  • knowledge/templates/issues/pull_request.md

Procedure

1. Load PR standards

   • Read knowledge/guidelines/pr-creation-guidelines.md.
   • Read knowledge/templates/issues/pull_request.md.

2. Check repository state

   • Run git status.
   • Identify base branch (default main). If unclear, run git branch -a.

3. Verify actual code changes

   • Run git diff <base_branch>...HEAD --stat.
   • For each significant changed file, run:
     • git diff <base_branch>...HEAD -- <file>
   • If no changes, stop and report.

4. Draft PR title & description

   • Title: clear and concise.
   • Description must follow the template sections:
     • Context (Why)
     • Changes (What) + Impact Scope
     • Verification (Proof)
     • Risks
     • Self-Check
   • Include issue link if known (e.g., Fixes #123).

5. Create PR

   • Preferred: use GitHub MCP create PR tool if available.
   • Alternative: use gh pr create --title "<Title>" --body "<Description>".
   • If automation fails, provide title/body for manual creation.

Outputs

• A PR title and description aligned with project guidelines.
• A created PR link if successfully created.

Error Handling / Edge Cases

• No changes: report and stop.
• Missing base branch: ask the user to confirm.
• Template mismatch: report and align with knowledge/templates/issues/pull_request.md.

Final Check

• Title is clear and concise.
• Description follows the required structure.
• Changes are verified from actual diffs.
• Verification steps cover impact scope.
• Risks are documented.