Claude Skills for Code Review
Claude skills for engineers doing PR reviews and diff-level code review.
Download the free pack
Get 3 Claude skills in a zip file. Upload each folder as its own skill in Claude.
Download pack (.zip)Free. No email required. Install instructions
Code review done well catches real bugs and leaves the codebase better. Done badly, it blocks PRs on bikeshed opinions. This pack keeps Claude's review output useful: bug-hunting, risk-flagging, and concrete — not pedantic.
What you can do with this pack
- Review a PR diff for bugs and risks
- Flag security issues in code changes
- Spot regressions that tests won't catch
- Give structured, actionable feedback
- Assess whether tests cover the change
Skills in this pack
PR Diff Reviewer
Review a pull request diff for bugs, regressions, and risks. Trigger on 'review this PR', 'code review', 'review my diff', 'look at this change', or when the user pastes or links to a PR.
Security Risk Spotter
Spot security issues in a code diff — injection, auth bypass, secrets, CSRF, open redirects. Trigger on 'security review', 'is this safe', 'security issues', 'vulnerability check', or when the user wants a security-focused diff review.
Test Coverage Assessor
Assess whether tests in a diff actually cover the new behaviour. Trigger on 'are the tests enough', 'test coverage', 'missing tests', 'what should I test', or when the user asks if a PR's tests are sufficient.
How to install the skills
- In Claude, turn on code execution under Settings → Capabilities.
- Download and unzip the pack above — you'll see one folder per skill.
- Go to Customize → Skills, click + Create skill, then Upload a skill.
- Zip each individual skill folder and upload it.
- Toggle the skill on. Claude will use it automatically when your request matches.
Full instructions: /download/claude-skills
FAQ
What is a Claude skill?
A Claude skill is a folder containing a SKILL.md file. It tells Claude when to trigger the skill and how to execute the task. Skills live inside your Claude account once uploaded.
Do these work on Free, Pro and Max plans?
Yes, as long as code execution is enabled. On Team and Enterprise plans, an admin needs to enable skills at the organisation level first.
Can I edit the skills?
Yes — the skills are plain markdown files. Open SKILL.md in any editor and change the description, steps, templates, or output format to match how you work.
Do I need all the skills in the pack?
No. Upload only the ones you'll use. Too many active skills makes Claude less precise about which one to pick.