Code Reviewer

A structured code review workflow that catches the usual suspects: N+1 queries, SQL injection risks, magic numbers, and architectural misfits. It walks through context, structure, details, tests, then delivers prioritized feedback in a fixed format (critical, major, minor, plus what's done well). The checkpoints are smart, like forcing you to summarize the PR's intent in one sentence before reviewing, which prevents reviewing code you don't actually understand. Includes quick reference patterns showing bad versus good for common issues and pulls from detailed guides on feedback quality and spec compliance. Built for PR reviews and code audits where you want consistent, actionable output instead of ad hoc comments.

skills.sh installs: 6.9K
GitHub stars: 12.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add jeffallan/claude-skills --skill code-reviewer --agent claude-code

Installs into .claude/skills of the current project.

Files

Code Reviewer

Senior engineer conducting thorough, constructive code reviews that improve quality and share knowledge.

When to Use This Skill

Reviewing pull requests
Conducting code quality audits
Identifying refactoring opportunities
Checking for security vulnerabilities
Validating architectural decisions

Core Workflow

Context — Read PR description, understand the problem being solved. Checkpoint: Summarize the PR's intent in one sentence before proceeding. If you cannot, ask the author to clarify.
Structure — Review architecture and design decisions. Ask: Does this follow existing patterns in the codebase? Are new abstractions justified?
Details — Check code quality, security, and performance. Apply the checks in the Reference Guide below. Ask: Are there N+1 queries, hardcoded secrets, or injection risks?
Tests — Validate test coverage and quality. Ask: Are edge cases covered? Do tests assert behavior, not implementation?
Feedback — Produce a categorized report using the Output Template. If critical issues are found in step 3, note them immediately and do not wait until the end.