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Skill catalog

591testing & qa agent skills synced from skills.sh, with their install counts. Read them here, or let your agent fetch the right one through the Graph-of-Skills MCP server.

Want your agent to use these? Set up Graph-of-Skills or get a free key. How these skills are sourced and what we check. Cannot find one? Your agent can write a skill for your own library. Have skills of your own? Install one on another machine. A skill that comes from GitHub shows its npx skills add command on its page.

  1. MANDATORY for static source-to-test pairing: find or list source files/modules without corresponding tests, or suggest test locations from repository structure. Invoke even for a tiny package; do not substitute manual g…

    3,048 installs
  2. grade-tests dotnet/skills

    Grade curated individual tests for readiness, A-F quality and improvements. ALWAYS USE FOR: grade tests, review only a named test, per-test readiness or quality bands for supplied methods, bodies, file spans or bounded…

    3,045 installs
  3. ce-test-browser everyinc/compound-engineering-plugin

    Run browser tests for pages affected by the current branch or PR. Use when asked to run or check browser tests for the current change.

    3,040 installs
  4. Provides file paths to language-specific reference files for the test ANALYSIS skills (assertion-quality, test-anti-patterns, test-gap-analysis, test-smell-detection, test-tagging). Read this catalog to discover availab…

    3,036 installs
  5. om-code-review open-mercato/skills

    Review a diff, branch, or PR against correctness, security, breaking-change, and quality standards — runs the validation gate, applies the built-in checklist plus any repo-local one, and produces severity-ranked finding…

    3,027 installs
  6. project-min-evaluation c3sc0-v4113/scaffold

    Trigger: done, complete, finish, before commit, quality check, verify. Run the project's own minimum quality scripts before claiming work is complete.

    3,012 installs
  7. ui-test browserbase/skills

    AI-powered adversarial UI testing via the browse CLI. Analyzes git diffs to test only what changed, or explores the full app to find bugs. Tests functional correctness, accessibility, responsive layout, and UX heuristic…

    3,006 installs
  8. update-screenshots microsoft/vscode

    Update the committed blocks-ci screenshot hashes after the "Screenshots & Tests" check fails, or investigate a screenshot diff reported on a PR. Use when asked to update, accept, or refresh component screenshot baseline…

    2,997 installs
  9. threejs-qa-release majidmanzarpour/threejs-game-skills

    Verify and release Three.js browser games: playtest QA, automated bot playtests, mobile and responsive checks, production builds, static-hosting base paths, debug gating, bundle review, screenshots, visual regression ba…

    2,990 installs
  10. running-apex-tests forcedotcom/sf-skills

    Apex test execution, coverage analysis, and test-fix loops with 120-point scoring. Use when the user needs to run Apex tests, check code coverage, fix failing tests, or work with *Test.cls / *_Test.cls files. TRIGGER wh…

    2,964 installs
  11. godot-gdscript-headless-testing gamedev-skills/awesome-gamedev-agent-skills

    Run GDScript test suites from the command line with `godot --headless`, using a SceneTree/MainLoop runner script that exits non-zero on failure so CI can gate merges. Use when a Godot project needs unit tests without op…

    2,947 installs
  12. om-integration-tests open-mercato/skills

    Run and create integration/E2E tests by exploring the live app with the configured browser provider, preserving repository-native runners, reusing the shared test environment, and diagnosing failures from concrete artif…

    2,931 installs
  13. om-fix open-mercato/skills

    Implements the minimal code change identified by the om-root-cause step, adds regression tests, and runs the configured validation gate. Claims the tracker issue at start (assignee + in-progress label + claim comment) s…

    2,928 installs
  14. test-scenarios phuryn/pm-skills

    Create comprehensive test scenarios from user stories with test objectives, starting conditions, user roles, step-by-step actions, and expected outcomes. Use when writing QA test cases, creating test plans, defining acc…

    2,899 installs
  15. om-prepare-test-env open-mercato/skills

    Prepare a reusable, technology-agnostic environment for local tests and QA. Compiles discovery into cross-platform launch scripts, provisions the configured browser provider autonomously, and writes the shared test-env…

    2,864 installs
  16. om-root-cause open-mercato/skills

    Read-only root-cause analysis for a tracker issue. Identifies the bug's location and the minimal change surface so the next agent can implement the fix without re-exploring the repo. Outputs a short summary, the files t…

    2,848 installs
  17. Convert .NET tests from xUnit.net v2/v3 to MSTest v4 while preserving VSTest or MTP. Use for replacing xunit packages, Fact/Theory/InlineData/MemberData, assertions, IClassFixture/ICollectionFixture, ITestOutputHelper,…

    2,842 installs
  18. test-tui openai/codex

    Guide for testing Codex TUI interactively

    2,834 installs
  19. fix-errors microsoft/vscode

    Guidelines for fixing unhandled errors from the VS Code error telemetry dashboard. Use when investigating error-telemetry issues with stack traces, error messages, and hit/user counts. Covers tracing data flow through c…

    2,818 installs
  20. testing codewithmukesh/dotnet-claude-kit

    Testing strategy for .NET 10 applications. Covers xUnit v3, WebApplicationFactory for integration tests, Testcontainers for real database testing, Verify for snapshot testing, and the AAA pattern. Load this skill when w…

    2,814 installs
  21. health-check codewithmukesh/dotnet-claude-kit

    Multi-dimensional health assessment for .NET projects with letter grades (A-F) using Roslyn MCP tools. Evaluates 8 dimensions: build health, code quality, architecture, test coverage, dead code, API surface, security po…

    2,789 installs
  22. vitest supabase/supabase

    Vitest API and config reference (Jest-compatible) — mocking with vi.*, spies, fake timers, coverage configuration, fixtures, snapshots, and test filtering. Use for Vitest API and configuration questions anywhere in the…

    2,769 installs
  23. code-review codewithmukesh/dotnet-claude-kit

    MCP-powered multi-dimensional code review for .NET projects. Uses Roslyn analysis tools for antipatterns, diagnostics, references, and dependency graphs combined with structured manual review. Prioritizes effort with bl…

    2,767 installs
  24. tdd brianlovin/agent-config

    Test-driven development with red-green-refactor loop. Use when user wants to build features or fix bugs using TDD, mentions "red-green-refactor", wants integration tests, or asks for test-first development.

    2,762 installs
  25. verify codewithmukesh/dotnet-claude-kit

    Run a comprehensive 7-phase verification pipeline for .NET projects: build, analyzers, antipattern detection, tests, security, formatting, and diff review. Each phase produces PASS/FAIL with actionable output and the pi…

    2,756 installs
  26. tdd codewithmukesh/dotnet-claude-kit

    Guided test-driven development workflow for .NET 10 using xUnit v3, WebApplicationFactory, Testcontainers, and Verify snapshots. Follows the strict red-green-refactor cycle. Use when: "TDD", "test-driven", "let's TDD th…

    2,752 installs
  27. web-renderer-test remotion-dev/remotion

    Add explicitly requested web renderer tests or update existing ones for implementation changes.

    2,750 installs
  28. arch-check codewithmukesh/dotnet-claude-kit

    Architecture conformance check: verifies an existing codebase against its declared architecture (VSA, Clean Architecture, DDD, Modular Monolith) — dependency direction, layer violations, module boundary leaks, and cycle…

    2,746 installs
  29. playwright-e2e-testing bobmatnyc/claude-mpm-skills

    Playwright modern end-to-end testing framework with cross-browser automation, auto-wait, and built-in test runner

    2,706 installs
  30. om-verify-in-repo open-mercato/skills

    Read-only triage gate for an autofix chain. Decides whether a tracker issue is a real, still-unfixed defect on the current branch. Stops the chain cleanly with NO_ACTION_NEEDED when the issue is already fixed, already i…

    2,698 installs
  31. greploop greptileai/skills

    Iteratively improves a PR (GitHub), MR (GitLab), or shelved changelist (Perforce) until Greptile gives it a 5/5 confidence score with zero unresolved comments. Triggers Greptile review, fixes all actionable comments, pu…

    2,673 installs
  32. cypress-tap cypress-io/ai-toolkit

    Drives a running Cypress open-mode session through `cypress tap` to run and rerun specs, wait for fresh results, inspect reporter and command logs, and query or rewind the app under test through DOM, accessibility, styl…

    2,668 installs
  33. sox-testing anthropics/knowledge-work-plugins

    Generate SOX sample selections, testing workpapers, and control assessments. Use when planning quarterly or annual SOX 404 testing, pulling a sample for a control (revenue, P2P, ITGC, close), building a testing workpape…

    2,667 installs
  34. dx-apexguru-scan forcedotcom/sf-skills

    Run an ApexGuru performance scan on a Salesforce Apex project via the ApexGuru SFAP Scan API. Zips the project's Apex (any layout), submits it, polls to completion, decodes the base64 report, and presents performance an…

    2,658 installs
  35. k6-test-maintenance grafana/skills

    Maintain and improve existing k6 test scripts. Covers threshold tightening based on trend data, version migration between k6 releases, auto-fixing tests when the underlying service changes, refactoring for cleanliness,…

    2,649 installs
  36. propagate juxt/allium

    Generate tests from Allium specifications. Use when the user wants to propagate tests, generate test files from a spec, write tests for a specification, create property-based tests, produce state machine tests, check te…

    2,637 installs
  37. Investigate a Grafana Cloud k6 test — describe the script, list run history, identify pass/fail status, pull raw metric time-series and log lines for one or more runs, and (if asked) safely edit the test script. Use whe…

    2,614 installs
  38. vitest sentimony/skills

    You MUST use this when configuring, writing, debugging, running, migrating, or auditing Vitest tests in JavaScript/TypeScript projects - Vite, Vue, Nuxt, React, Next.js, Node libraries, workspaces, coverage, mocks, snap…

    2,613 installs
  39. wp-abilities-verify wordpress/agent-skills

    Verify a WordPress plugin's Abilities API registrations: enumerate abilities, check that callback behavior matches each annotation's claim (the adversarial readonly-but-writes detection), validate permissions and schema…

    2,601 installs
  40. backprop juliusbrussee/cavekit

    Bug → spec protocol. When a bug is found or a test fails, trace the cause, decide whether a new §V invariant would catch recurrence, append to §B. This is the one non-obvious thing SDD does that plan-then-execute doesn'…

    2,594 installs
  41. om-review-prs open-mercato/skills

    Review all currently unreviewed open pull requests, newest first, using the om-auto-review-pr skill and respecting in-progress claim locks.

    2,585 installs
  42. sentry-fix-issues getsentry/sentry-agent-skills

    Find and fix issues from Sentry using MCP. Use when asked to fix Sentry errors, debug production issues, investigate exceptions, or resolve bugs reported in Sentry. Methodically analyzes stack traces, breadcrumbs, trace…

    2,585 installs
  43. code-review-pro onewave-ai/claude-skills

    Performs a deep code review of files, modules, a diff, or a branch - finding security vulnerabilities (mapped to OWASP Top 10:2025), correctness bugs, performance problems, and maintainability issues - and returns sever…

    2,571 installs
  44. wp-guard amelnagdy/guard-skills

    Review generated or changed WordPress code — plugins, themes, and blocks — before it ships. Best used reactively after an agent writes, edits, or reviews code touching WordPress APIs: add_action/add_filter, shortcodes,…

    2,551 installs
  45. MUST USE when an existing .NET test project was excluded from a .slnf/CI solution filter, disappeared from .sln/.slnx discovery, or lost its production ProjectReference; also for requests to set up, create, reuse, add,…

    2,543 installs
  46. sentry-code-review getsentry/sentry-for-ai

    Analyze and resolve Sentry comments on GitHub Pull Requests. Use this when asked to review or fix issues identified by Sentry in PR comments. Can review specific PRs by number or automatically find recent PRs with Sentr…

    2,522 installs
  47. review-and-ship cursor/plugins

    Review the current branch for bugs, intent fit, and test coverage; run or write tests; commit focused work; open or update a PR.

    2,474 installs
  48. testing-setup android/skills

    Analyze and create a testing strategy for Android apps - install testing libraries, set up test infrastructure, create harnesses for unit tests, UI tests, screenshot tests, and end-to-end tests.

    2,465 installs
  49. e2e-tests-studio mastra-ai/mastra

    REQUIRED when modifying any file in packages/playground-ui or packages/playground. Triggers on: React component creation/modification/refactoring, UI changes, new playground features, bug fixes affecting studio UI. Gene…

    2,458 installs
  50. MUST USE for C#/.NET deterministic tests that require the smallest production seam for DateTime/Task.Delay/File/Environment/Guid/Random, static API preservation, nested/parallel overrides, or no real I/O. USE ONLY when…

    2,452 installs