---

name: task-completer description: Complete individual tasks with test-first development, quality gates, and proper commits. Use when working on bugs, features, or tasks that result in a single commit.

Task Completer

Complete tasks with rigorous test-first development and quality gates.

1. Claim the Task

Copybd update <task-id> --status in_progress --json

2. Test-First Development

The One Rule: CHANGED CODE = NEW TESTS

No commits without new tests for changed code.

Pre-Commit Questions

1. Did I change production code? -> Must add tests
2. Do existing tests pass? -> NOT ENOUGH. Did you add NEW tests?
3. Did I add NEW tests for EVERY file I changed? -> If NO, STOP
4. Do ALL tests pass (including new ones)? -> Run npm test
5. Any TypeScript errors? -> Run npx tsc --noEmit

Workflow

1. Write test FIRST (it should fail)
2. Implement the fix/feature
3. Run tests (they should pass)
4. Commit BOTH production + test files together

Common Violations

• "Tests already pass" - Did you ADD tests for YOUR changes?
• "It's a small change" - Still needs tests
• "Bug fix only" - Needs regression test
• "I updated existing tests" - Did you ADD new tests too?
• "Frontend change" - Needs component tests
• "Changed 3 files, added tests for 1" - Need tests for ALL 3

3. Fail Fast, Fail Loud

Never silently work around problems. Fix them or let them fail visibly.

Principles

• Missing env vars: Throw an error, don't silently skip functionality
• Invalid state: Crash early with a clear message, don't limp along
• Missing dependencies: Fail at startup, not at runtime
• Tests need mocking: Mock properly in tests, don't add fallbacks to production code

Anti-Patterns to Avoid

Copy// BAD: Silent failure hides production bugs
if (!process.env.API_KEY) {
  return; // Silently does nothing
}

// GOOD: Fail loudly so the problem is fixed
if (!process.env.API_KEY) {
  throw new Error('API_KEY environment variable is required');
}

The app should work correctly or not at all. Silent misbehavior is worse than a crash.

4. Quality Gates

Run these before committing:

Copy# Run all tests
npm test

# Type check
npx tsc --noEmit

Both must pass with zero errors.

5. Commit Checklist

Before EVERY commit, verify ALL of these:

• TESTS WRITTEN - Unit tests exist for ALL new/modified code
• TESTS COVER ALL CHANGES - If you modified N files, you have tests for N files
• All tests passing (npm test)
• No TypeScript errors (npx tsc --noEmit)
• No as any or as unknown in production code
• No optional chaining on required properties

If you cannot check ALL boxes, DO NOT COMMIT.

6. Make the Commit

Copygit add -A
git commit -m "$(cat <<'EOF'
<type>: <description>

<optional body>

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
EOF
)"

Types: feat, fix, refactor, test, docs, chore

7. Close the Task

Copybd close <task-id> --reason "Completed"

8. Landing the Plane (Session Completion)

When ending a work session, complete ALL steps:

Mandatory Workflow

1. File issues for remaining work

   Copybd create "Remaining work description" -t task -p 2 --json
   

2. Run quality gates (if code changed)

   Copynpm test && npx tsc --noEmit
   

3. Update issue status

   Copybd close <completed-task-id> --reason "Done"
   

4. PUSH TO REMOTE (MANDATORY)

   Copygit pull --rebase
   bd sync
   git push
   git status  # MUST show "up to date with origin"
   

5. Clean up

   • Clear stashes: git stash list then git stash drop if needed
   • Prune remote branches: git remote prune origin

6. Verify

   • All changes committed AND pushed
   • git status shows clean working tree

7. Hand off

   • Summarize what was done
   • Note any follow-up tasks created

Critical Rules

• Work is NOT complete until git push succeeds
• NEVER stop before pushing - that leaves work stranded locally
• NEVER say "ready to push when you are" - YOU must push
• If push fails, resolve and retry until it succeeds