Agent skill

Code Review

Reviews code for quality issues, security vulnerabilities, performance problems, and best practices.

MITAuto-check passedDevelopment

Install Code Review

skills CLI

$ npx skills add ownpilot/OwnPilot --skill code-review -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install ownpilot/OwnPilot code-review --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/ownpilot/OwnPilot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/gateway/data/example-skills/code-review .claude/skills/code-review && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "code-review" agent skill from https://github.com/ownpilot/OwnPilot/tree/main/packages/gateway/data/example-skills/code-review into .claude/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", 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

$skill-installer install https://github.com/ownpilot/OwnPilot/tree/main/packages/gateway/data/example-skills/code-review

Type 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.

skills CLI

$ npx skills add ownpilot/OwnPilot --skill code-review -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install ownpilot/OwnPilot code-review --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ownpilot/OwnPilot.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/gateway/data/example-skills/code-review .agents/skills/code-review && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "code-review" agent skill from https://github.com/ownpilot/OwnPilot/tree/main/packages/gateway/data/example-skills/code-review into .agents/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", 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.

skills CLI

$ npx skills add ownpilot/OwnPilot --skill code-review -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install ownpilot/OwnPilot code-review --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ownpilot/OwnPilot.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/gateway/data/example-skills/code-review .cursor/skills/code-review && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "code-review" agent skill from https://github.com/ownpilot/OwnPilot/tree/main/packages/gateway/data/example-skills/code-review into .cursor/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", 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

$ gemini skills install https://github.com/ownpilot/OwnPilot.git --path packages/gateway/data/example-skills/code-review

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add ownpilot/OwnPilot --skill code-review -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install ownpilot/OwnPilot code-review --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ownpilot/OwnPilot.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/gateway/data/example-skills/code-review .gemini/skills/code-review && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "code-review" agent skill from https://github.com/ownpilot/OwnPilot/tree/main/packages/gateway/data/example-skills/code-review into .gemini/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", 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.

GitHub CLI

$ gh skill install ownpilot/OwnPilot code-review

Installs 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).

skills CLI

$ npx skills add ownpilot/OwnPilot --skill code-review -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/ownpilot/OwnPilot.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/gateway/data/example-skills/code-review .github/skills/code-review && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "code-review" agent skill from https://github.com/ownpilot/OwnPilot/tree/main/packages/gateway/data/example-skills/code-review into .github/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", 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.

skills CLI

$ npx skills add ownpilot/OwnPilot --skill code-review -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install ownpilot/OwnPilot code-review --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ownpilot/OwnPilot.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/gateway/data/example-skills/code-review .opencode/skills/code-review && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "code-review" agent skill from https://github.com/ownpilot/OwnPilot/tree/main/packages/gateway/data/example-skills/code-review into .opencode/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", 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.

Facts

Skill name: code-review
GitHub stars: 426
Token cost: ~493 tokens
SKILL.md length: 169 words
Files: 3 (incl. scripts, references)
Skills in repo: 9
Repo updated: Sep 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Reviews code for quality issues, security vulnerabilities, performance problems, and best practices.

Works in 4 steps: Read the code thoroughly before making… → Categorize issues by severity: Critical,… → Be specific - reference exact line… → …
The user asks for a code review
SKILL.md covers Review Process, What to Check, Output Format and Tips
Runs Python scripts from its folder

What it does

Code Review is an agent skill from ownpilot/OwnPilot. Reviews code for quality issues, security vulnerabilities, performance problems, and best practices. Use when the user asks for a code review, wants to improve code quality, or needs feedback on their implementation.

Its SKILL.md is about 490 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts and reference files (for example `references/REFERENCE.md` and `scripts/analyze.py`). Compatibility notes: Works with any code execution environment

It sits in Development, covering Code review and Code quality. The repository describes itself as: Privacy-first personal AI assistant platform with autonomous agents, tool orchestration, and multi-provider support. The licence is MIT.

When your agent uses it

The user asks for a code review
Wants to improve code quality
Needs feedback on their implementation

Example prompts

“Use the code-review skill to review code for quality issues, security vulnerabilities, performance problems, and best practices”
“/code-review”

Requirements

Python 3
Compatibility (from SKILL.md): Works with any code execution environment

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

Read the code thoroughly before making any comments
Categorize issues by severity: Critical, Warning, Suggestion
Be specific - reference exact line numbers and provide fixed code
Be constructive - explain WHY something is an issue, not just WHAT

What it can do on your machine

Read from SKILL.md and the folder at commit eb4c27f. It shows what the files ask for, not the result of running them.

Tool permissions
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.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Compatibility
Works with any code execution environment
From compatibility in the SKILL.md frontmatter.

Context cost

Code Review loads about 493 tokens when it runs, and up to ~689 if it reads all its reference files. Until then it costs about 57 tokens; SKILL.md has 169 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~57
When it runs · the whole SKILL.md, loaded when a task matches: ~493
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~689

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.

Safety

Auto-check passed

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.

SKILL.md

The full file from ownpilot/OwnPilot at commit eb4c27f, republished under its MIT licence (© ownpilot). 169 words, ~493 tokens.

Download SKILL.mdSave it as .claude/skills/code-review/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.

name: code-review
description: Reviews code for quality issues, security vulnerabilities, performance problems, and best practices. Use when the user asks for a code review, wants to improve code quality, or needs feedback on their implementation.
compatibility: Works with any code execution environment
license: MIT
metadata.author: ownpilot
metadata.version: 1.0.0

Code Review Skill

You are an expert code reviewer. When activated, follow this structured review process.

Review Process

Read the code thoroughly before making any comments
Categorize issues by severity: Critical, Warning, Suggestion
Be specific - reference exact line numbers and provide fixed code
Be constructive - explain WHY something is an issue, not just WHAT

What to Check

Security

SQL injection, XSS, command injection
Hardcoded secrets or credentials
Unsafe deserialization
Missing input validation at system boundaries

Performance

N+1 query patterns
Unnecessary re-renders (React)
Missing indexes for frequent queries
Unbounded collections or memory leaks

Code Quality

Functions longer than 50 lines
Deep nesting (>3 levels)
Magic numbers without constants
Dead code or unused imports

Error Handling

Unhandled promise rejections
Empty catch blocks
Missing error boundaries (React)
Swallowed errors without logging

Output Format

Structure your review as:

## Code Review Summary

**Overall**: [Good/Needs Work/Critical Issues]
**Files Reviewed**: [count]

### Critical Issues
- [file:line] Description and fix

### Warnings
- [file:line] Description and suggestion

### Suggestions
- [file:line] Optional improvement

### What's Good
- Positive observations about the code

Tips

Don't nitpick formatting if a linter handles it
Focus on logic errors over style preferences
If unsure about intent, ask before suggesting changes
Acknowledge good patterns when you see them

Files

SKILL.md and 2 other files (scripts, references) in packages/gateway/data/example-skills/code-review of ownpilot/OwnPilot.

SKILL.md
references/REFERENCE.md
scripts/analyze.py

Open the folder on GitHubat commit eb4c27f

Compare with similar skills

Code Review 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.

Code Review compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Code Review this skillownpilot/OwnPilot	426	—	~493	Automated safety check: Pass	MIT	29 days ago
WooCommerce Code Reviewwoocommerce/woocommerce	11k	3 repos	~1.1k	Automated safety check: Pass	Custom licence	today
Skill Doli Code ReviewDolibarr/dolibarr	7.7k	1 repos	~1.1k	Automated safety check: Pass	MIT	yesterday
Dignified Python Standardsdocling-project/docling	68k	—	~1.5k	Automated safety check: Pass	Apache-2.0	yesterday
Clean Code GuardamElnagdy/guard-skills	1.3k	2 repos	~4.3k	Automated safety check: Pass	MIT	3 mo ago
Archify Reviewtt-a1i/archify	79k	—	~415	Automated safety check: Pass	MIT	today

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Questions about Code Review

What does Code Review do?

Reviews code for quality issues, security vulnerabilities, performance problems, and best practices. Code Review is an agent skill from ownpilot/OwnPilot. Reviews code for quality issues, security vulnerabilities, performance problems, and best practices.

When should I use Code Review?

Code Review fits situations like: the user asks for a code review; wants to improve code quality; needs feedback on their implementation.

How do I install Code Review in Claude Code?

Run `npx skills add ownpilot/OwnPilot --skill code-review -a claude-code`. Or copy the skill folder (packages/gateway/data/example-skills/code-review in ownpilot/OwnPilot) into .claude/skills/code-review in your project. Claude Code loads it when a task matches its description.

How do I install Code Review in Codex?

Run `npx skills add ownpilot/OwnPilot --skill code-review -a codex`. Or copy the skill folder (packages/gateway/data/example-skills/code-review in ownpilot/OwnPilot) into .agents/skills/code-review in your project. Codex loads it when a task matches its description.

Can I use Code Review in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ownpilot/OwnPilot --skill code-review -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-review, .gemini/skills/code-review, .github/skills/code-review and .opencode/skills/code-review in your project.

What does Code Review need to run?

Going by SKILL.md and its folder, Code Review needs Python for the scripts in its folder. Our summary lists: Python 3. Compatibility (from SKILL.md): Works with any code execution environment.

Does Code Review access the network?

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.

Is Code Review safe to install?

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.

What licence does Code Review use?

Code Review is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Code Review use?

About 493 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 196 tokens, read only when the agent opens those files.

What are the alternatives to Code Review?

Skills that share tags, products or a category with Code Review: WooCommerce Code Review (woocommerce/woocommerce, 11k stars), Skill Doli Code Review (Dolibarr/dolibarr, 7.7k stars), Dignified Python Standards (docling-project/docling, 68k stars) and Clean Code Guard (amElnagdy/guard-skills, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Review?

ownpilot (a GitHub organization) maintains it in ownpilot/OwnPilot, which has 426 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on September 8, 2026.

Source: ownpilot/OwnPilot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Code Review

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Compatibility

Context cost

Safety

SKILL.md

Code Review Skill

Review Process

What to Check

Security

Performance

Code Quality

Error Handling

Output Format

Tips

Files

Compare with similar skills

Similar skills

More from ownpilot/OwnPilot

Related

Questions about Code Review