Agent skill

Code Review

Code review for Python changes in NexRL, following project conventions.

Apache-2.0Auto-check passedDevelopment

Install Code Review

skills CLI

$ npx skills add nex-agi/NexRL --skill code-review -a claude-code

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

GitHub CLI

$ gh skill install nex-agi/NexRL 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/nex-agi/NexRL.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/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/nex-agi/NexRL/tree/main/.claude/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/nex-agi/NexRL/tree/main/.claude/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 nex-agi/NexRL --skill code-review -a codex

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

GitHub CLI

$ gh skill install nex-agi/NexRL 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/nex-agi/NexRL.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/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/nex-agi/NexRL/tree/main/.claude/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 nex-agi/NexRL --skill code-review -a cursor

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

GitHub CLI

$ gh skill install nex-agi/NexRL 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/nex-agi/NexRL.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/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/nex-agi/NexRL/tree/main/.claude/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/nex-agi/NexRL.git --path .claude/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 nex-agi/NexRL --skill code-review -a gemini-cli

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

GitHub CLI

$ gh skill install nex-agi/NexRL 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/nex-agi/NexRL.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/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/nex-agi/NexRL/tree/main/.claude/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 nex-agi/NexRL 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 nex-agi/NexRL --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/nex-agi/NexRL.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/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/nex-agi/NexRL/tree/main/.claude/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 nex-agi/NexRL --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 nex-agi/NexRL 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/nex-agi/NexRL.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/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/nex-agi/NexRL/tree/main/.claude/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: 119
Token cost: ~395 tokens
SKILL.md length: 134 words
Files: 1
Skills in repo: 6
Repo updated: Sep 17, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Code review for Python changes in NexRL, following project conventions.

Tasks that involve Code review
SKILL.md covers Overview, Checklist and How to Run
Calls git and python

What it does

Code Review is an agent skill from nex-agi/NexRL. Code review for Python changes in NexRL, following project conventions.

Its SKILL.md is about 400 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 Python. The repository describes itself as: NexRL is an ultra-loosely-coupled LLM post-training framework. The licence is Apache-2.0.

When your agent uses it

Tasks that involve Code review

Example prompts

“/code-review”

Requirements

Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit 53dcdec. 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:
- git
- python
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use 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 395 tokens when it runs. Until then it costs about 21 tokens; SKILL.md has 134 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~21
When it runs · the whole SKILL.md, loaded when a task matches: ~395

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 nex-agi/NexRL at commit 53dcdec, republished under its Apache-2.0 licence (© nex-agi). 134 words, ~395 tokens.

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

name: code-review
description: Code review for Python changes in NexRL, following project conventions.

Code Review Skill

Overview

Review Python code changes following NexRL project conventions and .ai-instructions/code-review/generic.md.

Checklist

Code Quality

Follows project style (black, isort formatting)
No debug code or commented-out sections
No TODOs/FIXMEs unless documented
License headers present on Python/shell/YAML/TOML files
pylint and mypy pass without new warnings

Architecture & Design

Consistent with NexRL's loosely-coupled architecture
Proper use of existing abstractions (workers, trainers, services)
No circular imports
Configuration changes follow existing patterns (Hydra/OmegaConf)

Documentation Alignment

Documentation in docs/ reflects code changes
Docstrings present for public APIs
Configuration reference updated if parameters changed
Examples still work

Testing

Tests added for new functionality (in tests/)
No ad-hoc test files outside tests/
Existing tests still pass

Commit Content

Only relevant changes included
No build artifacts or sensitive information
Commit message follows conventions (present tense, no AI co-author)

How to Run

bash

# Review staged changes
git diff --staged

# Review against base branch
git diff origin/main...HEAD

# Check specific files
python -m pylint <files> --rcfile=.pylintrc -rn -sn
python -m mypy <files> --ignore-missing-imports

Files

Just SKILL.md in .claude/skills/code-review of nex-agi/NexRL.

Open the folder on GitHubat commit 53dcdec

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 skillnex-agi/NexRL	119	—	~395	Automated safety check: Pass	Apache-2.0	20 days ago
Code Review ChecklistshareAI-lab/learn-claude-code	78k	5 repos	~1.1k	Automated safety check: Pass	MIT	9 days ago
Dignified Python Standardsdocling-project/docling	68k	—	~1.5k	Automated safety check: Pass	Apache-2.0	yesterday
Code Review Skillawesome-skills/code-review-skill	2.1k	—	~2.8k	Automated safety check: Notes	MIT	29 days ago
Docling Pull Request Reviewdocling-project/docling	68k	—	~1k	Automated safety check: Pass	MIT	yesterday
Git History Bug Auditben-manes/caffeine	18k	—	~3.3k	Automated safety check: Pass	Apache-2.0	2 days ago

Similar skills

Code Review Checklist
shareAI-lab/learn-claude-code
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78k GitHub starsUsed in 5 repos~1.1k tokens
DevelopmentAuto-check passed
Dignified Python Standards
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Applies opinionated production Python conventions chosen by the project's Python version: modern type syntax, pathlib, explicit checks and interface guidance.
68k GitHub stars~1.5k tokensUpdated yesterday
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Code Review Skill
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Docling Pull Request Review
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Reviews or re-reviews a Docling pull request in fixed stages, with findings that can be reproduced and an explicit record of every check that was run.
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Git History Bug Audit
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Questions about Code Review

What does Code Review do?

Code review for Python changes in NexRL, following project conventions. Code Review is an agent skill from nex-agi/NexRL. Code review for Python changes in NexRL, following project conventions.

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 nex-agi/NexRL --skill code-review -a claude-code`. Or copy the skill folder (.claude/skills/code-review in nex-agi/NexRL) 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 nex-agi/NexRL --skill code-review -a codex`. Or copy the skill folder (.claude/skills/code-review in nex-agi/NexRL) 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 nex-agi/NexRL --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 (git and python). Our summary lists: Python 3.

Does Code Review access the network?

SKILL.md contains no URLs. Its commands use 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 Apache-2.0 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 395 tokens (SKILL.md is roughly 1.6k 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: Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Dignified Python Standards (docling-project/docling, 68k stars), Code Review Skill (awesome-skills/code-review-skill, 2.1k stars) and Docling Pull Request Review (docling-project/docling, 68k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Review?

nex-agi (a GitHub organization) maintains it in nex-agi/NexRL, which has 119 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on September 17, 2026.

Source: nex-agi/NexRL 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

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Code Review Skill

Overview

Checklist

Code Quality

Architecture & Design

Documentation Alignment

Testing

Commit Content

How to Run

Files

Compare with similar skills

Similar skills

More from nex-agi/NexRL

Related

Questions about Code Review