code-review

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---
name: code-review
description: Use when receiving code review feedback (especially if unclear or technically questionable), when completing tasks or major features requiring review before proceeding, or before making any completion/success claims. Covers three practices - receiving feedback with technical rigor over performative agreement, requesting reviews via code-reviewer subagent, and verification gates requiring evidence before any status claims. Essential for subagent-driven development, pull requests, and preventing false completion claims.
---

# Code Review

Guide proper code review practices emphasizing technical rigor, evidence-based claims, and verification over performative responses.

## Overview

Code review requires three distinct practices:

1. **Receiving feedback** - Technical evaluation over performative agreement
2. **Requesting reviews** - Systematic review via code-reviewer subagent
3. **Verification gates** - Evidence before any completion claims

Each practice has specific triggers and protocols detailed in reference files.

## Core Principle

**Technical correctness over social comfort.** Verify before implementing. Ask before assuming. Evidence before claims.

## When to Use This Skill

### Receiving Feedback
Trigger when:
- Receiving code review comments from any source
- Feedback seems unclear or technically questionable
- Multiple review items need prioritization
- External reviewer lacks full context
- Suggestion conflicts with existing decisions

**Reference:** `references/code-review-reception.md`

### Requesting Review
Trigger when:
- Completing tasks in subagent-driven development (after EACH task)
- Finishing major features or refactors
- Before merging to main branch
- Stuck and need fresh perspective
- After fixing complex bugs

**Reference:** `references/requesting-code-review.md`

### Verification Gates
Trigger when:
- About to claim tests pass, build succeeds, or work is complete
- Before committing, pushing, or creating PRs
- Moving to next task
- Any statement suggesting success/completion
- Expressing satisfaction with work

**Reference:** `references/verification-before-completion.md`

## Quick Decision Tree

```
SITUATION?
│
├─ Received feedback
│  ├─ Unclear items? → STOP, ask for clarification first
│  ├─ From human partner? → Understand, then implement
│  └─ From external reviewer? → Verify technically before implementing
│
├─ Completed work
│  ├─ Major feature/task? → Request code-reviewer subagent review
│  └─ Before merge? → Request code-reviewer subagent review
│
└─ About to claim status
   ├─ Have fresh verification? → State claim WITH evidence
   └─ No fresh verification? → RUN verification command first
```

## Receiving Feedback Protocol

### Response Pattern
READ → UNDERSTAND → VERIFY → EVALUATE → RESPOND → IMPLEMENT

### Key Rules
- ❌ No performative agreement: "You're absolutely right!", "Great point!", "Thanks for [anything]"
- ❌ No implementation before verification
- ✅ Restate requirement, ask questions, push back with technical reasoning, or just start working
- ✅ If unclear: STOP and ask for clarification on ALL unclear items first
- ✅ YAGNI check: grep for usage before implementing suggested "proper" features

### Source Handling
- **Human partner:** Trusted - implement after understanding, no performative agreement
- **External reviewers:** Verify technically correct, check for breakage, push back if wrong

**Full protocol:** `references/code-review-reception.md`

## Requesting Review Protocol

### When to Request
- After each task in subagent-driven development
- After major feature completion
- Before merge to main

### Process
1. Get git SHAs: `BASE_SHA=$(git rev-parse HEAD~1)` and `HEAD_SHA=$(git rev-parse HEAD)`
2. Dispatch code-reviewer subagent via Task tool with: WHAT_WAS_IMPLEMENTED, PLAN_OR_REQUIREMENTS, BASE_SHA, HEAD_SHA, DESCRIPTION
3. Act on feedback: Fix Critical immediately, Important before proceeding, note Minor for later

**Full protocol