Code review skills
Ordered by install count from the source, then by repository stars on GitHub. Only cards with a checked description are included.
-
1
1,163,035installs
improve-codebase-architecture
This skill scans a codebase for architectural friction, then builds a visual HTML report with refactoring candidates. Use it before a deeper architecture review.
skill · Matt Pocock · MIT
-
2
1,141,062installs
tdd
Guides the red-green TDD loop: ensures tests are written first, keep them at public interfaces, and avoid coupling to implementation details.
skill · Matt Pocock · MIT
-
3
990,453installs
triage
This skill moves issues and external PRs through triage states, verification, and agent briefs. It fits maintainers managing an issue queue.
skill · Matt Pocock · MIT
-
4
850,344installs
codebase-design
This skill helps design modules with small interfaces and hidden complexity. Use it when refactoring code, choosing a seam, or making tests easier to write.
skill · Matt Pocock · MIT
-
5
789,521installs
code-review
Reviews changes from a chosen reference point against repository standards and the originating spec. Use it for a branch, PR, or work in progress.
skill · Matt Pocock · MIT
-
6
774,700installs
implement
Implements work from a specification or tickets, following a test-driven flow and ending with review and a commit. Use it when a coding task needs a defined delivery routine.
skill · Matt Pocock · MIT
-
7
475,388installs
migrate-to-shoehorn
Replaces as type assertions in tests with helpers from @total-typescript/shoehorn. Use it when tests need partial objects or deliberately invalid data.
skill · Matt Pocock · MIT
-
8
416,700installs
vercel-composition-patterns
A rule set that pushes your agent away from boolean props and toward compound components, shared context and state lifted into providers.
skill · vercel · MIT
-
9
410,700installs
caveman-review
Generates terse, single-line code review comments with exact line numbers, problems, and fixes. Eliminates conversational filler in pull request reviews.
skill · JuliusBrussee · Apache-2.0
-
10
385,500installs
emil-design-eng
This skill guides UI polish, component details, and animation choices. Use it when an interface works but its states and transitions need closer review.
skill · emilkowalski · MIT
-
11
357,900installs
cavecrew
cavecrew delegates code searches, small edits, and diff reviews to three subagents. Use it when keeping the main agent's context lean matters.
skill · JuliusBrussee · Apache-2.0
-
12
335,500installs
analyze-project
Reads a deep learning repository and maps its structure, entrypoints and suspicious spots. Changes nothing, runs no heavy jobs.
skill · lllllllama · MIT
-
13
306,118installs
systematic-debugging
Makes the agent investigate the cause of a failure before it suggests a patch. Use it for failing tests, build errors, and behaviour that does not match expectations.
skill · Jesse Vincent · MIT
-
14
276,027installs
retro
Reviews a coding session and suggests changes to the agent environment for later runs. Use it after mistakes, slow repository navigation, or costly tool calls.
skill · Matt Pocock · MIT
-
15
262,135installs
requesting-code-review
Sends completed work to a reviewer subagent after a task, major feature, or before merging to main. It keeps the review focused on the change and its requirements.
skill · Jesse Vincent · MIT
-
16
259,292installs
test-driven-development
This skill guides an agent through test-first development: verify a test fails, write the smallest passing change, then refactor. It covers features, bug fixes, and behavior changes.
skill · Jesse Vincent · MIT
-
17
254,100installs
review-animations
Reviews UI animation and motion code against Emil Kowalski's design standards. Flags slow easings, non-GPU properties, and unnecessary transitions.
skill · emilkowalski · MIT
-
18
251,313installs
verification-before-completion
This skill blocks completion claims until the agent runs a fresh check and reads the result. Use it before commits or PRs when an agent report is not enough.
skill · Jesse Vincent · MIT
-
19
242,988installs
executing-plans
Runs an implementation plan in the current session instead of assigning each task to a subagent. Use it for inline work with TDD, a decision ledger, and a final branch review.
skill · Jesse Vincent · MIT
-
20
237,746installs
subagent-driven-development
This skill runs an implementation plan through fresh subagents for independent tasks and reviews each result. Use it for multi-step work in one session.
skill · Jesse Vincent · MIT
-
21
222,000installs
improve-animations
Surveys motion and animation code across your project, then generates self-contained fix plans. It spots janky keyframes and poor easing without altering source files.
skill · emilkowalski · MIT
-
22
221,216installs
receiving-code-review
Reviews code review feedback before changes: it clarifies unclear points, checks the repository, and supports reasoned pushback. Use it before acting on review comments.
skill · Jesse Vincent · MIT
-
23
206,800installs
find-animation-opportunities
Scans a codebase or UI for motion that would clarify states and interactions, while rejecting decoration that gets in the way. It is read-only.
skill · emilkowalski · MIT
-
24
138,200installs
firebase-security-rules-auditor
Audits Firebase rules for data leaks, privilege escalation, and validation gaps. Use it when reviewing Firestore or Cloud Storage access.
skill · Google LLC · Apache-2.0
-
25
124,900installs
workers-best-practices
Guides coding agents on production Cloudflare Workers standards, Wrangler typing, observability setup, and runtime anti-pattern checks.
skill · cloudflare · Apache-2.0
-
26
117,500installs
write-swift
This skill guides Swift coding, reviews, and migrations using the language’s current practices. Use it to investigate concurrency errors, hangs, data races, or retain cycles.
skill · emilkowalski · MIT
-
27
109,700installs
durable-objects
This skill helps build, debug, and review Cloudflare Durable Objects for state, coordination, and persistent connections.
skill · cloudflare · Apache-2.0
-
28
106,500installs
caveman-explore
A read-only skill locates relevant files and line ranges in a repository. Use it for cold-start orientation or broad searches.
skill · JuliusBrussee · Apache-2.0
-
29
105,700installs
caveman-learn
This skill reads Caveman learn reports, proposes token-cost reductions, and asks for consent before each edit. Use it for heavy CLAUDE.md files or repeated context.
skill · JuliusBrussee · Apache-2.0
-
30
105,500installs
safe-refactor
Restructures code while preserving existing behavior, enforcing verification boundaries before structural edits.
skill · JuliusBrussee · Apache-2.0
Other collections
- Best Claude Code skills 1,975
- Best Claude Code plugins 7
- Best Claude Code subagents 167
- Best Codex skills 1,733
- Frontend skills 400
- Testing skills 353
- Security skills and rules 310
- SEO and marketing skills 161
- Design skills 297
- DevOps skills 508
- Claude Code design skills 219
- AI agent tools for game development 15
- Marketing skills and agents 48
- Scientific skills for AI agents 46
- UI/UX skills 5
- Writing skills 12
- Claude Code slash commands 7
- GitHub Copilot agent skills 1,603
- Gemini CLI extensions and skills 1,338
- Office skills: PDF, Excel, PowerPoint 144
- Data analysis skills 283
- Research skills 44