Agent Skills

Free AI agent skills from GitHub, tested by a small, cheap model (Haiku). Further right means Haiku used it right more often.

How a skill is tested

A skill is a file that teaches an AI coding agent how to do one job. We test each one with a small, cheap model (Haiku), because if a small model gets it right, a big one will too.

  1. Picked right. Haiku sees the list of skills, like a real agent does, and gets 3 requests: 2 where this skill should be used and 1 that only sounds similar. It scores a point for each request it sends the right way.
  2. Followed right. Haiku reads the whole skill and a real request, then says its first step. A second Haiku call checks that step against the one the skill asks for.

Score: 1 point per request picked right (3) plus 2 points for following right, out of 5, shown out of 100. Further right is better. Green is 80 and up, amber 50 to 79, red below 50. Pick a kind of skill to see them as a leaderboard, best first. Haiku only sees skills from the same repo when it picks, as if you had installed that one collection. The test questions were written from each skill's own text by a stronger model, so a skill is never graded on something it does not claim to do. Last run: claude-haiku-4-5-20251001, 2026-10-28.

The same skills as a table
SkillFromWhat it doesScorePicked rightFollowed right
receiving-code-review obra/superpowersHandle review comments with checks, not blind yes: understand, verify, then fix or push back. 100 3/3 1/1
requesting-code-review obra/superpowersHand your finished work to a fresh reviewer sub-agent with the right context before it merges. 100 3/3 1/1
codex garrytan/gstackAsk the OpenAI Codex CLI for an independent second opinion on your code or plan. 40 2/3 0/1
devex-review garrytan/gstackTest the real developer experience of a live product: docs, quickstart and CLI, with timings. 80 2/3 1/1
health garrytan/gstackScore code quality from types, lint, tests, dead code and scripts, and track the trend. 100 3/3 1/1
review garrytan/gstackPre-merge review of your branch diff for structural bugs that tests miss. 100 3/3 1/1
code-review mattpocock/skillsReview changes since a commit two ways at once: coding standards and does it match the spec. 100 3/3 1/1
gh-pr-review-buttons odykyi/gh-skillsAdd 'Review this PR in' Grok, Claude and Codex buttons to PR descriptions through a GitHub Action. 100 3/3 1/1
pr-feedback-handler odykyi/gh-skillsGo through PR review comments and either fix each one or reply with the reason you won't. 100 3/3 1/1
pr-reviewer odykyi/gh-skillsReview a PR for quality, security and performance, and post structured findings through gh. 100 3/3 1/1
sharp-edges trailofbits/skillsSpot error-prone APIs, risky config options and footgun designs that invite security mistakes. 100 3/3 1/1
review-walkthrough trailofbits/skillsTurn the current branch into an HTML walkthrough, split in logical steps with review findings. 60 3/3 0/1
code-review getsentry/skillsReview pull requests the Sentry way. Checks security, performance, tests and design. 60 3/3 0/1
find-bugs getsentry/skillsHunt bugs, security holes and quality issues in the changes on the current branch. 80 2/3 1/1
django-perf-review getsentry/skillsReview Django code for N+1 queries and other slow ORM patterns. 100 3/3 1/1
code-review-excellence wshobson/agentsReview PRs with clear, kind feedback: context, big picture, then line by line. 60 3/3 0/1
multi-reviewer-patterns wshobson/agentsRun several review angles at once, merge duplicate findings, set severity. 60 3/3 0/1
adversarial-reviewer alirezarezvani/claude-skillsHard code review with three hostile personas to beat agreeable self-review. 100 3/3 1/1
pr-review-expert alirezarezvani/claude-skillsReview a PR for blast radius, security, test gaps and breaking changes. 100 3/3 1/1
api-design-reviewer alirezarezvani/claude-skillsLint REST APIs for naming, versions and breaking changes; score the design. 60 3/3 0/1
code-reviewer Jeffallan/claude-skillsReview diffs for bugs, security, N+1 queries and smells; give a report. 40 2/3 0/1
verification-loop affaan-m/everything-claude-codeCheck finished work: build, types, lint, tests, security grep, diff review. 100 3/3 1/1
review-pr NeoLabHQ/context-engineering-kitReview an open GitHub PR and post inline comments on the diff. 60 3/3 0/1
review-local-changes NeoLabHQ/context-engineering-kitReview uncommitted work before commit and suggest fixes. 100 3/3 1/1
code-review mrgoonie/claudekit-skillsHandle review feedback with checks, request reviews, and verify before claiming done. 80 2/3 1/1