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Code Review Skill

A baseline code-review skill that walks a quality/security/performance/maintainability checklist and returns a severity-ranked review report.

Dev & CodingBeginner★ 1,071⑂ 377AI score 7/10Last updated: Jul 23, 2026

What it does

  • Triggers when you ask for a code review, want feedback on your code, mention reviewing changes, or ask about code quality.
  • Works through four checklists: code quality, security, performance, and maintainability.
  • Security pass covers hardcoded secrets, missing input validation, SQL injection, XSS, and auth/authorization gaps.
  • Emits a fixed report: summary → Critical/Major/Minor issues with line numbers → strengths → prioritized recommendations → verdict (Approved / Needs Changes / Request Significant Changes).
  • Restricted to read-only tools (Read, Grep, Glob), so it won't silently edit your code.

Who it's for

  • Developers and leads who want consistent PR review quality across a team
  • Small teams or solo developers with no second reviewer
  • Juniors learning what to look for when reviewing code

Examples

  1. "Review the payment module I just wrote" → severity-ranked issue list with line references.
  2. "Check this API handler for security problems" → focuses on validation, auth checks, and injection risks.
  3. "Go over the files changed on this branch before I merge" → per-file summary and verdict.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/huangjia2019/claude-code-engineering/HEAD/04-Skills/projects/00-basic-skill/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the 04-Skills/projects/00-basic-skill folder from the GitHub repo huangjia2019/claude-code-engineering into my ~/.claude/skills/huangjia2019-code-reviewing/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/huangjia2019/claude-code-engineering.git && mkdir -p ~/.claude/skills/code-reviewing && cp claude-code-engineering/04-Skills/projects/00-basic-skill/SKILL.md ~/.claude/skills/code-reviewing/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/huangjia2019/claude-code-engineering.git
  3. Create the skill folder: mkdir -p ~/.claude/skills/code-reviewing
  4. Copy the file: cp claude-code-engineering/04-Skills/projects/00-basic-skill/SKILL.md ~/.claude/skills/code-reviewing/
  5. Restart Claude Code and ask "please review this file" to trigger it.
  6. (Optional) For project-only use, copy it into .claude/skills at your project root instead of ~/.claude/skills.
View source on GitHub ↗