Agent skill

Code Review

Review code changes against hard rules and conventions. An agent skill from WellApp-ai/Well.

MITAuto-check passedDevelopment

Install Code Review

skills CLI

$ npx skills add WellApp-ai/Well --skill code-review -a claude-code

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

GitHub CLI

$ gh skill install WellApp-ai/Well 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/WellApp-ai/Well.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cursor-rules/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/WellApp-ai/Well/tree/main/cursor-rules/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/WellApp-ai/Well/tree/main/cursor-rules/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 WellApp-ai/Well --skill code-review -a codex

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

GitHub CLI

$ gh skill install WellApp-ai/Well 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/WellApp-ai/Well.git skills-src && mkdir -p .agents/skills && cp -r skills-src/cursor-rules/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/WellApp-ai/Well/tree/main/cursor-rules/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 WellApp-ai/Well --skill code-review -a cursor

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

GitHub CLI

$ gh skill install WellApp-ai/Well 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/WellApp-ai/Well.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/cursor-rules/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/WellApp-ai/Well/tree/main/cursor-rules/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/WellApp-ai/Well.git --path cursor-rules/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 WellApp-ai/Well --skill code-review -a gemini-cli

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

GitHub CLI

$ gh skill install WellApp-ai/Well 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/WellApp-ai/Well.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/cursor-rules/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/WellApp-ai/Well/tree/main/cursor-rules/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 WellApp-ai/Well 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 WellApp-ai/Well --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/WellApp-ai/Well.git skills-src && mkdir -p .github/skills && cp -r skills-src/cursor-rules/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/WellApp-ai/Well/tree/main/cursor-rules/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 WellApp-ai/Well --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 WellApp-ai/Well 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/WellApp-ai/Well.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/cursor-rules/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/WellApp-ai/Well/tree/main/cursor-rules/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: 345
Token cost: ~509 tokens
SKILL.md length: 211 words
Files: 1
Skills in repo: 36
Repo updated: Sep 30, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Review code changes against hard rules and conventions. An agent skill from WellApp-ai/Well.

Tasks that involve Code review
SKILL.md covers When to Use, Phase 0: Pre-Push Validation, Review Checklist and Output Format, plus 2 more sections
Calls npm and git

What it does

Code Review is an agent skill from WellApp-ai/Well. Review code changes against hard rules and conventions

Its SKILL.md is about 510 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Code review. It works with npm. The repository describes itself as: No more Sundays on Finance. We build the infrastructure that retrieves, processes, and routes your financial and business data to your FinOps stack, so founders can ship, not… The licence is MIT.

When your agent uses it

Tasks that involve Code review

Example prompts

“/code-review”

What it can do on your machine

Read from SKILL.md and the folder at commit c740217. 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
Shell commands in SKILL.md call:
- npm
- git
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm and git, which can reach the network depending on how they are called.
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.

Context cost

Code Review loads about 509 tokens when it runs. Until then it costs about 17 tokens; SKILL.md has 211 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~17
When it runs · the whole SKILL.md, loaded when a task matches: ~509

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); files beside SKILL.md are not scanned.

SKILL.md

The full file from WellApp-ai/Well at commit c740217, republished under its MIT licence (© WellApp-ai). 211 words, ~509 tokens.

Download SKILL.mdSave it as .claude/skills/code-review/SKILL.md (or your agent's skills folder).

name: code-review
description: Review code changes against hard rules and conventions

Code Review Skill

Systematically review code for quality, conventions, and potential issues.

When to Use

Before committing changes (auto-triggered)
Reviewing others' PRs
Self-review before pushing
Pre-push validation (Phase 0)

Phase 0: Pre-Push Validation

Before reviewing code, ensure build passes:

npm run typecheck - No type errors
npm run lint - No lint errors
No console.log in changed files
Tests pass (if applicable): npm run test

If any check fails, fix before proceeding to code review.

Quick check command:

bash

npm run typecheck && npm run lint

Check for console.log:

bash

git diff --cached --name-only | xargs grep -l "console.log" 2>/dev/null

Review Checklist

Hard Rules Check

No any type usage
No console.log statements
Components under 200 lines
No inline styles (Tailwind only)
No arbitrary values (px-[13px])
API follows 3-layer pattern

Code Quality Check

Clear variable/function names
No duplicated code
Proper error handling
Types are specific (not unknown everywhere)

Conventions Check

Follows existing patterns in codebase
Imports organized correctly
File in correct location (feature folder)

Security Check

No hardcoded secrets/API keys
No exposed sensitive data
Proper input validation

Output Format

Present findings as:

Code Review Summary

Files Changed: [count] Issues Found: [count by severity]

Critical (must fix)

file.ts:L42 - [issue description]

Warnings (should fix)

file.ts:L15 - [issue description]

Suggestions (nice to have)

file.ts:L88 - [suggestion]

Approved

No blocking issues found

Proceed with commit? (yes / fix issues first)

Auto-Trigger

This skill is automatically invoked before every commit.

Files

Just SKILL.md in cursor-rules/skills/code-review of WellApp-ai/Well.

Open the folder on GitHubat commit c740217

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 skillWellApp-ai/Well	345	—	~509	Automated safety check: Pass	MIT	7 days ago
Open Code Review CLIalibaba/open-code-review	44k	—	~3.1k	Automated safety check: Pass	Apache-2.0	2 days ago
Open Code Review Delegatealibaba/open-code-review	44k	—	~2k	Automated safety check: Pass	Apache-2.0	2 days ago
Code Reviewyaklang/yakit	7.8k	—	~1.4k	Automated safety check: Notes	AGPL-3.0	7 days ago
Code ReviewAzure/Azurite	2.3k	—	~734	Automated safety check: Pass	MIT	today
Verdaccio Code Reviewverdaccio/verdaccio	18k	—	~853	Automated safety check: Pass	MIT	today

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Questions about Code Review

What does Code Review do?

Review code changes against hard rules and conventions. An agent skill from WellApp-ai/Well. Code Review is an agent skill from WellApp-ai/Well.

When should I use Code Review?

Code Review fits situations like: tasks that involve Code review.

How do I install Code Review in Claude Code?

Run `npx skills add WellApp-ai/Well --skill code-review -a claude-code`. Or copy the skill folder (cursor-rules/skills/code-review in WellApp-ai/Well) 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 WellApp-ai/Well --skill code-review -a codex`. Or copy the skill folder (cursor-rules/skills/code-review in WellApp-ai/Well) 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 WellApp-ai/Well --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 the command-line tools its instructions call (npm and git).

Does Code Review access the network?

SKILL.md contains no URLs. Its commands use npm and git, which can reach the network depending on how they are called. 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. Review the folder before installing.

What licence does Code Review use?

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

How many tokens does Code Review use?

About 509 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.

What are the alternatives to Code Review?

Skills that share tags, products or a category with Code Review: Open Code Review CLI (alibaba/open-code-review, 44k stars), Open Code Review Delegate (alibaba/open-code-review, 44k stars), Code Review (yaklang/yakit, 7.8k stars) and Code Review (Azure/Azurite, 2.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Review?

WellApp-ai (a GitHub organization) maintains it in WellApp-ai/Well, which has 345 GitHub stars. The repository holds 36 skills in this directory. The repository was last updated on September 30, 2026.

Source: WellApp-ai/Well 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

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Code Review Skill

When to Use

Phase 0: Pre-Push Validation

Review Checklist

Hard Rules Check

Code Quality Check

Conventions Check

Security Check

Output Format

Code Review Summary

Critical (must fix)

Warnings (should fix)

Suggestions (nice to have)

Approved

Auto-Trigger

Files

Compare with similar skills

Similar skills

More from WellApp-ai/Well

Related

Questions about Code Review