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Skill catalog

565testing & 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.

Showing 251 to 300 of 565
  1. race-condition yaklang/hack-skills

    Race condition and TOCTOU testing for web apps. Use when testing one-time operations, concurrent HTTP abuse, rate-limit bypass, Turbo Intruder gates, HTTP/2 single-packet attacks, and CWE-362-style synchronization gaps.

    3,621 installs
  2. coverage-analysis dotnet/skills

    Activation requires either supplied .NET coverage reports/percentages/line, branch, or condition metrics, or an explicit request to collect .NET coverage for analysis. USE FOR: interpreting that evidence, including Cobe…

    3,620 installs
  3. prototype-pollution yaklang/hack-skills

    Prototype pollution testing for JavaScript stacks. Use when user input is merged into objects (query parsers, JSON bodies, deep assign), when configuring libraries via untrusted keys, or when hunting RCE gadgets via pol…

    3,563 installs
  4. sentry openai/skills

    Use when the user asks to inspect Sentry issues or events, summarize recent production errors, or pull basic Sentry health data via the Sentry CLI; perform read-only queries using the `sentry` command.

    3,560 installs
  5. assertion-quality dotnet/skills

    Analyze assertion quality, depth, variety, and false confidence in existing tests. ALWAYS USE when asked about weak, shallow, trivial, always-true, self-referential, assertion-free, presence/truthiness-only, or insuffic…

    3,516 installs
  6. ce-debug everyinc/compound-engineering-plugin

    Diagnosis loop for bugs and failing behavior. Use when asked to debug or fix failing or slow behavior.

    3,492 installs
  7. crap-score dotnet/skills

    Calculates CRAP (Change Risk Anti-Patterns) for a named .NET method, class, or file. USE FOR: explicit CRAP calculation or coverage-and-complexity risk within that named target, including which tests to prioritize. DO N…

    3,491 installs
  8. openspec-verify-change fission-ai/openspec

    Verify implementation matches OpenSpec change artifacts. Use when the user wants to validate that implementation is complete, correct, and coherent before archiving. Also use when the user says "openspec verify" or "ops…

    3,480 installs
  9. test-gap-analysis dotnet/skills

    Find caller-visible production changes existing tests would miss through pseudo-mutation analysis; verify candidates or close gaps only when requested. Includes read-only per-test composition for grading. Polyglot. USE…

    3,469 installs
  10. code-testing-extensions dotnet/skills

    Provides file paths to language-specific extension files for the code-testing pipeline. Read this reference-only catalog for extension guidance files (e.g., dotnet.md for .NET, cpp.md for C++). Agents and skills read it…

    3,424 installs
  11. platform-detection dotnet/skills

    Identify a .NET project's test platform, framework, command mode, and SDK-style vs classic project system. Use only for "which test platform/framework?", "VSTest or MTP?", or "what runner does this project use?", includ…

    3,407 installs
  12. writing-mstest-tests dotnet/skills

    ALWAYS USE when asked to fix, rewrite, update, improve, modernize, show corrected code for, or explain existing MSTest tests or MSTest-specific configuration. Use for "review" when corrected code or edits are wanted, ev…

    3,404 installs
  13. detect-static-dependencies dotnet/skills

    ACTIVATION PREREQUISITE: the request or discovered target must explicitly identify C#, .NET, `.cs`, or `.csproj`; otherwise stay dormant without invoking this skill. USE FOR: locating System.DateTime.Now/UtcNow, System.…

    3,364 installs
  14. mtp-hot-reload dotnet/skills

    Set up or recover MTP hot reload for a long-lived console-host edit/re-run loop in a Microsoft Testing Platform project. Use for explicit MTP console requests such as "enable hot reload", "dotnet run to rerun on edit",…

    3,341 installs
  15. layer-quality layerai/skills

    Use when judging Layer output before it ships: scoring generated files against a workspace's output scoring rules, reading back verdicts on a file, reviewing a batch against the brief, or choosing which candidate to del…

    3,338 installs
  16. review-team cline/skills

    Use when the user asks for a code review by a fleet of specialized reviewer agents, wants multiple independent reviewer perspectives, or asks to run reviewers in single-pass or iterative fix-until-clean mode. Launches f…

    3,321 installs
  17. test-smell-detection dotnet/skills

    Audits existing tests in any language using formal, research-backed test smell names and the testsmells.org 19-smell academic taxonomy. Use when the caller asks for an academic or citable test-smell review, named smell…

    3,316 installs
  18. k6-perf-test-website grafana/skills

    Use when the user wants to performance-test, load-test, or stress-test a public website end-to-end with k6. Produces a hybrid (protocol + browser) test suite, SLO-backed thresholds, a load-generator monitor sidecar, and…

    3,315 installs
  19. playwright-testing alinaqi/maggy

    E2E testing with Playwright - Page Objects, cross-browser, CI/CD

    3,311 installs
  20. generate-testability-wrappers dotnet/skills

    DO NOT USE when the target already consumes an injected interface or built-in abstraction such as IFileSystem or TimeProvider, even if the request says "generate a wrapper"; no new wrapper is needed. Use only when C# so…

    3,298 installs
  21. dual-axis-skill-reviewer tradermonty/claude-trading-skills

    Review skills in any project using a dual-axis method: (1) deterministic code-based checks (structure, scripts, tests, execution safety) and (2) LLM deep review findings. Use when you need reproducible quality scoring f…

    3,262 installs
  22. pr-review pytorch/pytorch

    Review PyTorch pull requests for code quality, test coverage, security, and backward compatibility. Use when reviewing PRs, when asked to review code changes, or when the user mentions "review PR", "code review", or "ch…

    3,250 installs
  23. provider-test-patterns hashicorp/agent-skills

    Terraform provider acceptance test patterns using terraform-plugin-testing with the Plugin Framework. Covers test structure, TestCase/TestStep fields, ConfigStateChecks with custom statecheck.StateCheck implementations,…

    3,233 installs
  24. unsafe-checker actionbook/rust-skills

    CRITICAL: Use for unsafe Rust code review and FFI. Triggers on: unsafe, raw pointer, FFI, extern, transmute, *mut, *const, union, #[repr(C)], libc, std::ffi, MaybeUninit, NonNull, SAFETY comment, soundness, undefined be…

    3,229 installs
  25. debugger shubhamsaboo/awesome-llm-apps

    Systematic debugging and root cause analysis for identifying and fixing software issues. Use when: debugging errors, troubleshooting bugs, investigating crashes, analyzing stack traces, fixing broken code, or when user…

    3,225 installs
  26. memory-leak-audit microsoft/vscode

    Audit code for memory leaks and disposable issues. Use when reviewing event listeners, DOM handlers, lifecycle callbacks, or fixing leak reports. Covers addDisposableListener, Event.once, MutableDisposable, DisposableSt…

    3,217 installs
  27. migrate-xunit-to-xunit-v3 dotnet/skills

    Migrate .NET test projects from xUnit.net v2 to xunit.v3 and fix v3 breaks. Use for package/CPM conversion, OutputType=Exe, preserving the VSTest or MTP runner (including projects currently using YTest.MTP.XUnit2), inco…

    3,214 installs
  28. test-tagging dotnet/skills

    Classifies existing tests by standard traits and reports their distribution. USE FOR: tagging all tests with category attributes, categorizing/tagging/ labeling each test, compare happy vs error paths, audit the test mi…

    3,206 installs
  29. migrate-vstest-to-mtp dotnet/skills

    Use this skill before answering, planning, or editing whenever .NET tests or CI are switching from VSTest to Microsoft.Testing.Platform (MTP), or an MTP migration behaves differently. Triggers include "switch from VSTes…

    3,203 installs
  30. om-auto-qa-pr open-mercato/skills

    QA a PR's UI change in a real browser through the configured browser-provider descriptor — first ensuring the PR has been reviewed (invoking om-auto-review-pr when it has not), then capturing screenshots and a pass/fail…

    3,201 installs
  31. migrate-mstest-v1v2-to-v3 dotnet/skills

    Use this skill before answering or editing whenever an MSTest v1/v2 project is being upgraded or repaired for v3. Triggers include QualityTools assembly references; MSTest.TestFramework/TestAdapter 1.x-2.x; "upgrade to…

    3,186 installs
  32. migrate-mstest-v3-to-v4 dotnet/skills

    Use this skill before answering, planning, or editing any MSTest 3.x-to-4.x upgrade or post-upgrade failure. Triggers include "MSTest v4 breaking changes"; CS0507/CS0103/CS1061/CS1615; ExecuteAsync, CallerInfo, DisplayN…

    3,181 installs
  33. vanity-engineering-review bencium/bencium-marketplace

    Reviews codebases, architectures, PRs, and technical plans for vanity engineering — code and systems built for the developer's ego, resume, or intellectual pleasure rather than delivering user or business value. Trigger…

    3,178 installs
  34. make-pr-easy-to-review cursor/plugins

    Prepare PRs for review by cleaning noisy history, improving PR descriptions, and adding reviewer guidance without changing code behavior. Use for "make this easy to review", "tidy this PR", "clean up commits", or "annot…

    3,146 installs
  35. aoti-debug pytorch/pytorch

    Debug AOTInductor (AOTI) errors and crashes. Use when encountering AOTI segfaults, device mismatch errors, constant loading failures, or runtime errors from aot_compile, aot_load, aoti_compile_and_package, or aoti_load_…

    3,139 installs
  36. skill-integration-tester tradermonty/claude-trading-skills

    Validate multi-skill workflows defined in CLAUDE.md by checking skill existence, inter-skill data contracts (JSON schema compatibility), file naming conventions, and handoff integrity. Use when adding new workflows, mod…

    3,129 installs
  37. vitest onmax/nuxt-skills

    Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.

    3,121 installs
  38. apple-crash-symbolication dotnet/skills

    Symbolicate .NET runtime frames in Apple platform .ips crash logs (iOS, tvOS, Mac Catalyst, macOS). Extracts UUIDs and addresses from the native backtrace, locates dSYM debug symbols, and runs atos to produce function n…

    3,096 installs
  39. find-untested-sources dotnet/skills

    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
  40. 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
  41. 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
  42. test-analysis-extensions dotnet/skills

    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
  43. 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
  44. 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
  45. 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
  46. 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
  47. 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
  48. 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
  49. 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
  50. 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