Resolve GitHub Issues

Execute issue resolution workflow using isolated worktrees, TDD methodology, and agent collaboration.

Context

• Current git status: !git status
• Current branch: !git branch --show-current
• Existing worktrees: !git worktree list
• Open issues: !gh issue list --state open --limit 10
• GitHub authentication: !gh auth status

Requirements Summary

Use isolated worktrees to avoid disrupting main development. Follow TDD cycle (red → green → refactor) with agent support. Reference issues in commits using auto-closing keywords. See references/requirements.md for protected PR workflow and commit standards.

Phase 1: Issue Selection and Worktree Setup

Goal: Select target issue and prepare isolated development environment.

Actions:

1. Review open issues from context and select based on priority and $ARGUMENTS
2. Check existing worktrees to determine if reuse is possible
3. Use the EnterWorktree tool with a descriptive name (e.g., fix-456-auth-redirect) to create an isolated session
4. Rename the auto-generated branch to match conventions: run git branch -m <type>/<issue>-<description> (see references/workflow-details.md for naming)
5. Verify issue acceptance criteria and dependencies

Phase 2: TDD Implementation

Goal: Implement fix using test-driven development with agent collaboration.

Actions:

1. Plan implementation approach and assess architectural impact
2. Write failing tests that verify issue is resolved (RED phase)
3. Implement minimal code to make tests pass (GREEN phase)
4. Refactor while keeping tests green (REFACTOR phase)
5. Run quality validation commands to keep the TDD cycle honest (see references/workflow-details.md for project-specific checks). /github:create-pr re-runs the full gate in Phase 3 and is the authoritative pre-PR check.

Phase 3: PR Creation and Cleanup

Goal: Hand PR creation to /github:create-pr so the quality gate and the review loop run. Cleanup happens only after the merge, which may be many turns later.

Actions:

1. Push branch to remote with git push -u origin <branch-name>
2. CRITICAL: Do NOT call gh pr create here. Invoke Skill("github:create-pr", "<issue reference>") — e.g. Skill("github:create-pr", "Closes #456"). It is the plugin's only PR-creating path and owns the quality/security gate, the auto-closing-keyword linkage, the non-default-branch warning, and the mandatory /github:review-pr handoff. See references/pr-creation-handoff.md for the full contract. Creating the PR directly skips all of it.
   • Append --draft to the arguments if the fix requires further feedback before review
   • Append --no-monitor only when the user explicitly opts out of the review loop
3. This skill does not resume here. /github:create-pr reports the PR URL, and /github:review-pr then owns the PR for the rest of its life: a persistent Monitor spanning turns, the triage/fix/push rounds, and the merge decision it asks the user to make. Do NOT wait inline, do NOT re-report the URL, and do NOT run Phase 4 speculatively.

Phase 4: Post-Merge Cleanup (later turn, fallback)

Trigger: The PR from Phase 3 has actually merged — normally a later turn, after /github:review-pr completed its merge decision. /github:review-pr's closeout now owns the post-merge cleanup (worktree removal via ExitWorktree action:"remove", switch to main, sync with origin), so this Phase runs only as a fallback when that cleanup was skipped: the user chose "Don't merge", an interrupt left the worktree behind, or this is a fresh session that cannot ExitWorktree the worktree created by an earlier session. Never assume the worktree is gone — verify first.

Actions:

1. Verify the merge with gh pr view <PR#> --json state -q .state returning MERGED; never assume.
2. Check git worktree list whether the issue worktree still exists. If /github:review-pr already removed it, skip straight to git fetch --prune.
3. If it persists: CRITICAL: confirm still on the issue branch before ExitWorktree action:"remove". If checkout drifted onto main/develop, stop — removing would delete a long-lived branch. Remote head may already be gone; that is fine.
4. Use the ExitWorktree tool with action "remove" to clean up worktree and branch.
   • If uncommitted changes exist, ExitWorktree refuses; confirm with the user before setting discard_changes: true
5. git fetch --prune to sync remote-tracking branches.
6. Document resolution and any follow-up tasks

References

• Requirements: references/requirements.md - Worktree setup, TDD, and commit standards
• PR Creation Handoff: references/pr-creation-handoff.md - Why PRs delegate to /github:create-pr
• Workflow Details: references/workflow-details.md - Issue selection, TDD cycle, agent collaboration
• Quality Validation: references/quality-validation.md - Node.js/Python validation commands (shared)
• Examples: references/examples.md - Commit message examples