The best code review mods

openai/codex

Instructions file CodexOpenCode

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex

Skill Claude CodeCodex

Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep…

langchain-ai/langchain

Instructions file CodexOpenCode

Instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

github/spec-kit

Command

Generate a custom checklist for the current feature based on user requirements.

github/spec-kit

Command

Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.

microsoft/vscode

Agent

Agent for demonstrating VS Code features.

google-gemini/gemini-cli

Skill Claude CodeCodexGemini CLI

Use this skill during code reviews to proactively investigate the codebase for duplicated functionality, reinvented wheels, or failure to reuse existing project best practices and shared utilities.

microsoft/playwright

Skill Claude CodeCodex

Query Playwright CI test results from the aggregated DuckDB database. Answers questions about flaky tests, failure rates, slow tests, and per-run/SHA/PR results without hunting through GitHub artifacts.

supabase/supabase

Instructions file GitHub Copilot

Instructions for supabase/supabase, covering studio telemetry review rules, when to flag missing telemetry, feature flag telemetry pattern, event naming and event properties.

supabase/supabase

Instructions file GitHub Copilot

Instructions for supabase/supabase, covering react composition patterns review rules, core principle, when to flag, 1. boolean prop proliferation (high) and 2. render props instead of children (medium).

openai/openai-cookbook

Skill Claude CodeCodex

Review and edit OpenAI Cookbook notebooks, Markdown, and MDX for technical accuracy, clarity, grammar, consistency, runnable examples, and repository publication requirements. Use for editorial reviews, pre-merge documentation checks, or notebook Markdown-cell sweeps in openai-cookbook.

garrytan/gstack

Skill Claude CodeCodex

Designer's eye QA: finds visual inconsistency, spacing issues, hierarchy problems, AI slop patterns, and slow interactions — then fixes them. (gstack).

garrytan/gstack

Skill Claude CodeCodex

CEO/founder-mode plan review. (gstack).

NousResearch/hermes-agent

Skill Claude CodeCodex

Build discounted cash flow valuation workbooks in Excel.

anthropics/claude-cookbooks

Agent Claude Code

Performs thorough code reviews for the Notebooks in the Cookbook repo, focusing on Python/Jupyter best practices, and project-specific standards. Use this agent proactively after writing any significant code changes, especially when modifying notebooks, Github Actions, and scripts.