Code Reviewer

This does automated code review for TypeScript, JavaScript, Python, Swift, Kotlin, and Go projects. You get three Python scripts that analyze pull requests, check code quality, and generate review reports. It includes reference docs for code review checklists, coding standards, and common antipatterns. Honestly, the real value depends on how thorough those scripts and checklists actually are, but having a structured approach to reviews beats ad hoc commenting. Best for teams that want consistent code review standards across multiple languages without manually maintaining separate linters and guidelines for each stack.

skills.sh installs: 975
GitHub stars: 33.2K
last updated: Aug 21, 2026

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Install

$ npx -y skills add davila7/claude-code-templates --skill code-reviewer --agent claude-code

Installs into .claude/skills of the current project.

Files

Code Reviewer

Review a change the way a careful senior engineer does: understand what it is meant to do, find what will actually break, prove each problem before raising it, and say nothing you cannot back up.

A review is judged by its findings, not its length. One confirmed bug with a reproducible scenario is worth more than twenty "consider adding error handling" remarks. An empty report is a valid result when the change is sound.

1. Pin down the scope

Work out exactly which change is under review before reading any code.

Request	Diff to review
A PR number or URL	`gh pr diff <n>` and `gh pr view <n>` (title, body, linked issue)
A branch	`git diff origin/main...<branch>` (three dots diffs from the merge base; use the repo's real default branch)
A commit or range	`git show <sha>` / `git diff <a>..<b>`
"My changes", nothing named	`git diff HEAD` plus untracked files from `git status --porcelain`; if clean, the current branch against its merge base
Staged only	`git diff --cached`
A file or directory, no diff	Review that code as it stands, and say so in the report