Automated summary

Runs five parallel AI agents to review code changes against quality criteria, requiring all to pass before commit.

Strengths

Comprehensive multi-perspective review (code style, simplicity, consistency, robustness, scope)
Parallel execution for efficiency
Clear pass/fail verdicts with issue lists

Limitations

Requires a git diff against main
Dependent on model quality (sonnet/haiku)
Large diffs may need file-by-file processing
Cannot enforce fixes automatically

When to use it

Use before committing changes to ensure code quality and catch issues early.

When not to use it

Do not use for initial drafts or exploratory work where perfection is not expected.

name: qc description: Quality gate. 5 parallel agents review changes. All must pass. allowed-tools: Task, Bash, Read, Grep, Glob

QC Gate

Setup

DIFF=$(git diff main)
FILES=$(git diff main --name-only)
TASK="{task description or 'general changes'}"

Read 1-2 unmodified files from same directories for pattern context.

Agents

Spawn all 5 in parallel. All output raw JSON only, no markdown.

1: Code Review (sonnet)

DIFF: ${DIFF}

- Descriptive naming?
- Errors caught with useful messages?
- No hardcoded values, commented code, debug statements?
- No TODO without ticket ref?
- No obvious bugs?
- No useless comments?

{"pass": bool, "issues": [...]}

2: Simplification (sonnet)

DIFF: ${DIFF}

- Is this overcomplicated? Can I solve the same problem in a simpler manner?
- Can I reduce indirection?
- Can I reduce surface area?
- Premature abstraction? Premature Optimization? YAGNI violations?
- Dead code?
- Three similar lines > one abstraction

{"pass": bool, "issues": [...]}

3: Consistency (sonnet)

DIFF: ${DIFF}
PATTERNS: ${PATTERN_FILES}

- Matches existing codebase patterns?
- Proper types, no any, no unsafe casts?
- Idiomatic error handling?
- Changes internally consistent?
- Is logic isolated and composable?
- Are there existing tests if neccesary?

{"pass": bool, "issues": [...]}

4: Robustness (sonnet)

TASK: ${TASK}
DIFF: ${DIFF}

- Actually solves the problem?
- Edge cases: empty, null, zero, negative, boundaries, concurrency?
- Regression risk: changed signatures, shared state, removed exports?
- Maintains API contracts?

{"pass": bool, "issues": [...]}

5: Scope (haiku)

TASK: ${TASK}
FILES: ${FILES}
DIFF: ${DIFF}

- Solved the problem or just the symptom?
- Changes unrelated to task?
- Unnecessary refactoring?

{"pass": bool, "issues": [...]}

Results

| Check | Verdict | Issues | |-------|---------|--------| | Code Review | ✓/✗ | ... | | Simplification | ✓/✗ | ... | | Consistency | ✓/✗ | ... | | Robustness | ✓/✗ | ... | | Scope | ✓/✗ | ... |

ALL PASS: Ready to commit.

ANY FAIL: List issues, fix them, run /qc again.

Same issue 3x: Escalate to user.

Notes

Invalid JSON? Retry once. Still broken? Mark fail.
Large diffs (>500 lines): run simplification file-by-file.

QC Quality Gate

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