Category · Testing & Review

Testing & Review skills for Claude Code

The best Testing & Review skills, MCP servers & marketplaces for Claude Code, Codex, Cursor & all other coding agents, ranked by real installs in the Testing & Review category. Covers Jest, Playwright, Vitest and pytest and more.

What's in the Testing & Review category

The Testing & Review category collects 4,282 tools including agent skills, marketplaces and plugins, led by Improve Codebase Architecture, Tdd and Codebase Design. The list is updated automatically and ranked by real adoption - installs first, then GitHub stars - so the strongest surface first. Every listing works with Claude Code, Codex or Cursor. Updated October 25, 2026.

Use the filters below to narrow by type or what you're building, or open a type hub to see testing & review listings alongside everything else of that type.

Browse tools

Showing 722 of 4,282 in this view.

Type

1Improve Codebase Architecturemattpocock/skillsSafely deepen clusters of shallow modules into cohesive, testable units while respecting their external dependencies.Testing & Reviewskill

1M253k

2Tddmattpocock/skillsFollow test-driven development with a strict red-green-refactor loop when creating reliable features or fixing bugs.Testing & Reviewskill

1M253k

3Codebase Designmattpocock/skillsShared vocabulary for designing deep modules: improve a module's interface, find deepening opportunities, decide where a seam goes, make code more testable.Testing & Reviewskill

849k253k

4Code Reviewmattpocock/skillsReviews a branch or PR diff on two axes at once: conformance to coding standards plus a code-smell baseline, and whether it actually implements the original spec.Testing & Reviewskill

788k253k

5Google Agents Cli Evalgoogle/agents-cliOfficialAccurately evaluate agent trajectories that rely on Google Search grounding instead of regular tool calls.Testing & Reviewskill

509k5.8k

6Migrate To Shoehornmattpocock/skillsAutomatically update TypeScript test files that rely on unsafe `as` type assertions by replacing them with type-safe partial objects from @total-typescript/shoehorn.Testing & Reviewskill

475k253k

7Caveman ReviewJuliusBrussee/cavemanGet ultra-compressed, one-line code review comments that cut noise while keeping every actionable fix.Testing & Reviewskill

410k104k

8Setup Ts Deep Modulesmattpocock/skillsInstall dependency-cruiser and enforce deep-module boundaries in a TypeScript monorepo so packages expose only root entry points.Testing & Reviewskill

367k253k

9CavecrewJuliusBrussee/cavemanDelegate coding tasks to specialized subagents that return compressed output, keeping the main context window usable for much longer sessions.Testing & Reviewskill

357k104k

10Analyze Projectlllllllama/RigorPilot-SkillsGet a conservative, read-only map of any deep-learning repository before deciding where to safely insert new agent logic.Testing & Reviewskill

333k484

11Requesting Code Reviewobra/superpowersDispatch a consistent, high-signal code reviewer subagent that catches plan deviations and quality issues before merging or continuing development.Testing & Reviewskill

262k282k

15Request Refactor Planmattpocock/skillsTurns a messy refactor idea into a step-by-step plan of small commits, filed as a tracked issue.Testing & Reviewskill

202k219k

16Qamattpocock/skillsHelps a solo builder run structured quality checks on a feature to find bugs before it reaches users.Testing & Reviewskill

199k219k

17Playwright Climicrosoft/playwright-cliOfficialRun browser automation, generate element snapshots, inspect DOM attributes, and execute Playwright tests from the terminal.Testing & Reviewskill

195k13.1k

18Webapp Testinganthropics/skillsOfficialVerify frontend behavior, debug UI issues, capture screenshots, and inspect logs of a running local web application using Playwright.Testing & Reviewskill

187k175k

19Writing Guidelinesvercel-labs/agent-skillsOfficialAutomatically audit documentation, READMEs, and marketing prose against Vercel's official writing style and voice rules.Testing & Reviewskill

105k30.9k

20Safe RefactorJuliusBrussee/cavemanRefactor code safely with tests, incremental steps, and rollback awareness.Testing & Reviewskill

105k104k

21Multi Account Isolationantibrow/anti-detect-browser-skillsVerify anti-detect browser profiles are truly isolated across timezone, WebRTC, canvas hashes, and cookie jars before running multi-account QA.Testing & Reviewskill

104k54

22Review Loop2dmurali/review-loop-skillRun an iterative worker-reviewer loop that scores output 1-10 and revises until a quality gate is met.Testing & Reviewskill

104k3

23PonytailDietrichGebert/ponytailForce the simplest, shortest, most minimal solution at every step and eliminate unnecessary code, dependencies, and features.Testing & Reviewskill

104k128k

24Verify And StopJuliusBrussee/cavemanProve work meets acceptance criteria with focused checks then stop without scope creep.Testing & Reviewskill

103k104k

27Playwright Stealth Verifyliarjsdev/liarjs-skillsAssert Playwright or Puppeteer pages present a coherent browser fingerprint via liarjs library checks.Testing & Reviewskill

100k2

28Playwright Best Practicescurrents-dev/playwright-best-practices-skillGet expert, context-aware guidance while writing, debugging, or scaling Playwright browser automation tests.Testing & Reviewskill

97.9k373

29Reviewmattpocock/skillsReviews a diff or branch for correctness bugs, edge cases, and missing tests before merge.Testing & Reviewskill-89.9k219k

30Ab Testingcoreyhaines31/marketingskillsDesign statistically sound A/B tests for headlines, CTAs, pricing pages, and landing copy before running them.Testing & Reviewskill

76.3k47.1k

31Code Review And Qualityaddyosmani/agent-skillsRun consistent multi-axis code reviews on changes produced by themselves, other agents, or humans before merging.Testing & Reviewskill

71.8k92.5k

32Momentic Testmomentic-ai/skillsCreate, run, and maintain reliable AI-powered end-to-end browser tests without writing brittle selectors.Testing & Reviewskill

68.5k13

33Momentic Result Classificationmomentic-ai/skillsClassify, triage, and explain failures from Momentic end-to-end browser tests.Testing & Reviewskill

68.5k13

34Gsap Utilsgreensock/gsap-skillsOfficialSo their coding agent can correctly call GSAP utility methods like clamp, mapRange, normalize, snap, and random when implementing scroll-driven animations, interactiTesting & Reviewskill

64.1k15k

35Performance Optimizationaddyosmani/agent-skillsSystematically measure, identify, fix, and validate performance bottlenecks instead of guessing.Testing & Reviewskill

63.8k92.5k

50Ponytail ReviewDietrichGebert/ponytailGet concise, one-line suggestions that remove unnecessary complexity from code during reviews.Testing & Reviewskill

55.7k128k

51Doubt Driven Developmentaddyosmani/agent-skillsSubject every non-trivial decision to a fresh-context adversarial review before it stands.Testing & Reviewskill

55.5k92.5k

52Momentic Mobile Testmomentic-ai/skillsCreate, run, and maintain reliable end-to-end tests for Android and iOS mobile apps using real emulators and simulators.Testing & Reviewskill

54.3k13

53Clerk Testingclerk/skillsOfficialReliably test authentication flows in apps that use Clerk.Testing & Reviewskill

46k71

54Ponytail AuditDietrichGebert/ponytailGet a ranked list of over-engineered code, dead abstractions, and unnecessary dependencies that can be deleted or replaced with standard library or native plaTesting & Reviewskill

44.2k128k

55Golang Code Stylesamber/cc-skills-golangTeach agents the idiomatic Go style that clearly signals developer intent through deliberate zero-value versus explicit initialization.Testing & Reviewskill

43.8k3.2k

58Vitestantfu/skillsSimulate browser APIs and edge runtimes inside Vitest test suites without spinning up real browsers.Testing & Reviewskill

43k5.9k

59Karpathy Guidelinesmultica-ai/andrej-karpathy-skillsEmbed Andrej Karpathy’s coding principles directly into agent behavior for cleaner, simpler, and more reliable code output.Testing & Reviewskill

42.3k210k

60Ponytail DebtDietrichGebert/ponytailSurface every deliberate technical shortcut marked with a ponytail: comment before it quietly becomes permanent technical debt.Testing & Reviewskill

41.7k128k

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FAQ

Testing & Review tools - common questions

What are Testing & Review tools for Claude Code?

Testing & Review tools - skills, MCP servers and marketplaces tagged Testing & Review - teach Claude Code, Codex, Cursor and other coding agents how to do Testing & Review work, things like Jest, Playwright, Vitest, pytest and linting. Each one drops into your agent and installs with a single command.

How do I install a Testing & Review skill or MCP server?

Open any listing and copy its one-line command - for example npx skills add https://github.com/owner/repo --skill name for a skill, or /plugin marketplace add owner/repo for a marketplace. It's available in your next Claude Code, Codex or Cursor session.

Which Testing & Review tools and frameworks are covered?

Jest, Playwright, Vitest, pytest and linting and more. Skillselion ingests the whole catalog from skills.sh, GitHub and the MCP registries, so new Testing & Review tools appear as the community ships them - ranked by installs and GitHub stars, never paid placement.