Code Reviewer
borghei/Claude-Skills
Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin.
Code review automation for TypeScript, JavaScript, Python, Go, Swift, Kotlin, C, .NET, Java, C, C++, Rust, Ruby, PHP, and Dart/Flutter.
$ npx skills add alirezarezvani/claude-skills --skill code-reviewer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install alirezarezvani/claude-skills code-reviewer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/alirezarezvani/claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/engineering-team/skills/code-reviewer .claude/skills/code-reviewer && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "code-reviewer" agent skill from https://github.com/alirezarezvani/claude-skills/tree/main/engineering-team/skills/code-reviewer into .claude/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/alirezarezvani/claude-skills/tree/main/engineering-team/skills/code-reviewerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add alirezarezvani/claude-skills --skill code-reviewer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install alirezarezvani/claude-skills code-reviewer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alirezarezvani/claude-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/engineering-team/skills/code-reviewer .agents/skills/code-reviewer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/alirezarezvani/claude-skills/tree/main/engineering-team/skills/code-reviewer into .agents/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add alirezarezvani/claude-skills --skill code-reviewer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install alirezarezvani/claude-skills code-reviewer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alirezarezvani/claude-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/engineering-team/skills/code-reviewer .cursor/skills/code-reviewer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "code-reviewer" agent skill from https://github.com/alirezarezvani/claude-skills/tree/main/engineering-team/skills/code-reviewer into .cursor/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/alirezarezvani/claude-skills.git --path engineering-team/skills/code-reviewer--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add alirezarezvani/claude-skills --skill code-reviewer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install alirezarezvani/claude-skills code-reviewer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alirezarezvani/claude-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/engineering-team/skills/code-reviewer .gemini/skills/code-reviewer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/alirezarezvani/claude-skills/tree/main/engineering-team/skills/code-reviewer into .gemini/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install alirezarezvani/claude-skills code-reviewerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add alirezarezvani/claude-skills --skill code-reviewer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/alirezarezvani/claude-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/engineering-team/skills/code-reviewer .github/skills/code-reviewer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/alirezarezvani/claude-skills/tree/main/engineering-team/skills/code-reviewer into .github/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add alirezarezvani/claude-skills --skill code-reviewer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install alirezarezvani/claude-skills code-reviewer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alirezarezvani/claude-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/engineering-team/skills/code-reviewer .opencode/skills/code-reviewer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "code-reviewer" agent skill from https://github.com/alirezarezvani/claude-skills/tree/main/engineering-team/skills/code-reviewer into .opencode/skills/code-reviewer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-reviewer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
code-reviewerCode review automation for TypeScript, JavaScript, Python, Go, Swift, Kotlin, C, .NET, Java, C, C++, Rust, Ruby, PHP, and Dart/Flutter.
Code Reviewer is an agent skill from alirezarezvani/claude-skills. Code review automation for TypeScript, JavaScript, Python, Go, Swift, Kotlin, C, .NET, Java, C, C++, Rust, Ruby, PHP, and Dart/Flutter. Analyzes PRs for complexity and risk, checks code quality for SOLID violations and code smells, generates review reports. Use when reviewing pull requests, analyzing code quality, identifying issues, generating review checklists.
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 35 other files, including scripts and assets (for example `README.md`, `expected_outputs/sample_c_clean_quality.json` and `expected_outputs/sample_c_smells_quality.json`).
It sits in Development, covering Code review, Code quality and Cross-platform mobile apps. It works with C++, Java, PHP and C#. The repository describes itself as: 380 Claude Code skills & agent skills & plugins (30+ Agents, 70+ custom commands, 380+ skills, customizable references, scripts)for Claude Code, Codex, Gemini CLI, Cursor, and 8… The licence is MIT.
3 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 19392f7. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Ships 1 file in scripts/ (C# and Java, from the files we listed), which the agent can run.
Shell commands in SKILL.md call:
pythonFrom the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Code Reviewer loads about 1.6k tokens when it runs. Until then it costs about 95 tokens; SKILL.md has 451 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
The full file from alirezarezvani/claude-skills at commit 19392f7, republished under its MIT licence (© alirezarezvani). 451 words, ~1,620 tokens.
.claude/skills/code-reviewer/SKILL.md (or your agent's skills folder). This skill also uses 32 other files; get the full folder from GitHub.Automated code review tools for analyzing pull requests, detecting code quality issues, and generating review reports.
code-reviewer/
SKILL.md ← you are here (tools + dispatch table)
rules/
universal.md ← security, async, resources, exceptions, performance — all languages
languages/
python.md ← Python-specific rules + idioms
typescript.md ← TypeScript / JavaScript-specific rules + idioms
go.md ← Go-specific rules + idioms
swift.md ← Swift-specific rules + idioms
kotlin.md ← Kotlin-specific rules + idioms
csharp.md ← C# / .NET-specific rules + idioms
java.md ← Java-specific rules + idioms
c.md ← C -specific rules + idioms
cpp.md ← C++ -specific rules + idioms
rust.md ← Rust -specific rules + idioms
ruby.md ← Ruby -specific rules + idioms
php.md ← PHP-specific rules + idioms
dart.md ← Dart / Flutter-specific rules + idiomsSKILL.md) — tools and thresholdsrules/universal.md — always, for every languagelanguages/*.md — one file based on the extension table belowThat is always exactly 2 additional files, regardless of scope.
| Extension(s) | Load |
|---|---|
.py | languages/python.md |
.ts, .tsx, .js, .jsx, .mjs | languages/typescript.md |
.go | languages/go.md |
.swift | languages/swift.md |
.kt, .kts | languages/kotlin.md |
.cs, .csx, .razor, .cshtml | languages/csharp.md |
.java | languages/java.md |
.c, .h | languages/c.md |
.cpp, .cc, .cxx, .hpp, .hh, .hxx | languages/cpp.md |
.rs | languages/rust.md |
.rb, .rake, .gemspec, .ru | languages/ruby.md |
.php, .phtml | languages/php.md |
.dart | languages/dart.md |
Analyzes git diff between branches to assess review complexity and identify risks.
# Analyze current branch against main
python scripts/pr_analyzer.py /path/to/repo
# Compare specific branches
python scripts/pr_analyzer.py . --base main --head feature-branch
# JSON output for integration
python scripts/pr_analyzer.py /path/to/repo --jsonWhat it detects (universal — see also language file for language-specific signals):
Language-specific detections are defined in each languages/*.md file.
Output includes:
Analyzes source code for structural issues, code smells, and SOLID violations.
# Analyze a directory
python scripts/code_quality_checker.py /path/to/code
# Analyze specific language
# Valid values: python, typescript, javascript, go, swift, kotlin, csharp, java, c, cpp, rust, ruby, php, dart
python scripts/code_quality_checker.py . --language java
# JSON output
python scripts/code_quality_checker.py /path/to/code --jsonUniversal thresholds:
| Issue | Threshold |
|---|---|
| Long function | >50 lines |
| Large file | >500 lines |
| God class | >20 methods |
| Too many params | >5 |
| Deep nesting | >4 levels |
| High complexity | >10 branches |
Language-specific checks are defined in each languages/*.md file.
Combines PR analysis and code quality findings into structured review reports.
# Generate report for current repo
python scripts/review_report_generator.py /path/to/repo
# Markdown output
python scripts/review_report_generator.py . --format markdown --output review.md
# Use pre-computed analyses
python scripts/review_report_generator.py . \
--pr-analysis pr_results.json \
--quality-analysis quality_results.jsonVerdicts:
| Score | Verdict |
|---|---|
| 90+ with no high issues | Approve |
| 75+ with ≤2 high issues | Approve with suggestions |
| 50-74 | Request changes |
| <50 or critical issues | Block |
Reviewer guidance (required):
languages/<name>.md using any existing language file as a template — it must have sections: PR Analyzer Signals, Code Quality Checks, Security, Async, Resource Management, Exception Handling, Performance, Idioms.That is all the agent-driven review needs.
Deterministic analyzer support (optional, recommended): the bundled scripts
only flag a language they explicitly know. To make code_quality_checker.py
score the new language:
LANGUAGE_EXTENSIONS in scripts/code_quality_checker.py (this also adds the --language choice).function / class / method regex entries for the language in the same file; otherwise it falls back to the Python patterns.check_<name>_specific_smells(...) detector (see the C#, Java, and C ones) and call it from analyze_file.assets/sample_<name>_smells.<ext> + _clean fixtures and commit the expected --json output under expected_outputs/ as a regression guard.Labelled fixtures live in assets/ with their committed --json output in
expected_outputs/ (C#, Java, and C). Drift from the committed JSON signals a
behaviour change in the analyzer:
python scripts/code_quality_checker.py assets/sample_java_smells.java --json \
| diff - expected_outputs/sample_java_smells_quality.json© alirezarezvani, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 32 other files (scripts, assets) in engineering-team/skills/code-reviewer of alirezarezvani/claude-skills.
Open the folder on GitHubat commit 19392f7
We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in alirezarezvani/claude-skills, which our catalogue first saw on October 7, 2026.
Code Reviewer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Code Reviewer this skillalirezarezvani/claude-skills | 28k | 1 repos | ~1.6k | Automated safety check: Pass | MIT | |
| Code Reviewerborghei/Claude-Skills | 874 | — | ~1.7k | Automated safety check: Pass | MIT | |
| Code Reviewerjewbetcha/opentrace | 116 | 2 repos | ~1.1k | Automated safety check: Notes | MIT | |
| Crap Analyzerswingerman/engineer | 154 | — | ~1.2k | Automated safety check: Pass | MIT | |
| Code Review Skillawesome-skills/code-review-skill | 2.1k | — | ~2.8k | Automated safety check: Notes | MIT | |
| Code Review SkillRain-kl/OpenFlare | 288 | — | ~2.3k | Automated safety check: Notes | MIT |
borghei/Claude-Skills
Code review automation for TypeScript, JavaScript, Python, Go, Swift, and Kotlin.
jewbetcha/opentrace
Comprehensive code review skill for TypeScript, JavaScript, Python, Swift, Kotlin, Go.
swingerman/engineer
A skill your agent uses to produce a risk-based refactor + test plan for recently-changed code on a diff/branch/PR by computing CRAP (complexity × untested) on changed methods.
awesome-skills/code-review-skill
Provides comprehensive code review guidance for React 19, Vue 3, Angular 17+, Svelte 5, Rust, TypeScript, Java, Java 8, PHP, Ruby, Rails, Python, Django, FastAPI, Go, C/.NET, Kotlin, Swift, Dart…
Rain-kl/OpenFlare
Provides comprehensive code review guidance for React 19, Vue 3, Angular 17+, Svelte 5, Rust, TypeScript, Java, PHP, Python, Django, Go, C/.NET, Kotlin, Swift, NestJS, C/C++, and more.
andrew-yangy/gru-ai
Provides comprehensive code review guidance for React 19, Vue 3, Rust, TypeScript, Java, Python, and C/C++.
alirezarezvani/claude-skills
Writes INVEST-checked user stories with acceptance criteria, splits epics, plans sprints from velocity and ranks the backlog with a weighted score.
alirezarezvani/claude-skills
OKR cascade toolkit for product leaders: generates aligned company-to-team OKRs from five strategy types and scores how well they line up.
alirezarezvani/claude-skills
App Store Optimization (ASO) toolkit for researching keywords, analyzing competitor rankings, generating metadata suggestions, and improving app visibility on Apple App Store and Google Play Store.
alirezarezvani/claude-skills
Design AWS architectures for startups using serverless patterns and IaC templates.
alirezarezvani/claude-skills
Calculates attribution, funnel and ROI figures for marketing campaigns with three Python scripts that need only the standard library.
alirezarezvani/claude-skills
Reverse-engineers a frontend, backend or fullstack codebase into a product requirements document with per-page docs, an enum dictionary and an API inventory.
Categories
Code review automation for TypeScript, JavaScript, Python, Go, Swift, Kotlin, C, .NET, Java, C, C++, Rust, Ruby, PHP, and Dart/Flutter. Code Reviewer is an agent skill from alirezarezvani/claude-skills.NET, Java, C, C++, Rust, Ruby, PHP, and Dart/Flutter.
Code Reviewer fits situations like: reviewing pull requests; analyzing code quality; identifying issues; generating review checklists.
Run `npx skills add alirezarezvani/claude-skills --skill code-reviewer -a claude-code`. Or copy the skill folder (engineering-team/skills/code-reviewer in alirezarezvani/claude-skills) into .claude/skills/code-reviewer in your project. Claude Code loads it when a task matches its description.
Run `npx skills add alirezarezvani/claude-skills --skill code-reviewer -a codex`. Or copy the skill folder (engineering-team/skills/code-reviewer in alirezarezvani/claude-skills) into .agents/skills/code-reviewer in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add alirezarezvani/claude-skills --skill code-reviewer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-reviewer, .gemini/skills/code-reviewer, .github/skills/code-reviewer and .opencode/skills/code-reviewer in your project.
Going by SKILL.md and its folder, Code Reviewer needs C# and Java for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
Code Reviewer is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.6k tokens (SKILL.md is roughly 6.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Code Reviewer: Code Reviewer (borghei/Claude-Skills, 874 stars), Code Reviewer (jewbetcha/opentrace, 116 stars), Crap Analyzer (swingerman/engineer, 154 stars) and Code Review Skill (awesome-skills/code-review-skill, 2.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
alirezarezvani (a GitHub user) maintains it in alirezarezvani/claude-skills, which has 27,788 GitHub stars. The repository holds 342 skills in this directory. The repository was last updated on August 30, 2026.
Source: alirezarezvani/claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.