Claude skills and agent skills

nunitSkill

nunit-testing

nunit/nunit/.claude/skills/nunit-testing/SKILL.md

Use when writing or modifying tests in NUnit's own test projects, or when making a behavioral change to production code that needs test coverage. Covers test structure, attribute choice, helper visibility, platform guards, and which test projects are real.

drvossSkill

e2e-testing

drvoss/everything-copilot-cli/skills/testing/e2e-testing/SKILL.md

Use when you need end-to-end tests for critical user flows that unit tests can't cover — scaffolds Playwright/Cypress tests from the happy path through edge cases.

Often used witheverything-claude-code·everything-claude-code-conventions·bun-runtime

filipstrandSkill

mflux-testing

filipstrand/mflux/.cursor/skills/mflux-testing/SKILL.md

Run tests in mflux (fast/slow/full), preserve image outputs, and handle golden image diffs safely.

techygargSkill

test-quality

techygarg/lattice/skills/test-quality/SKILL.md

Apply test quality principles when generating or reviewing test code. Enforces Arrange-Act-Assert structure, one behavior per test, assertion quality, test isolation, meaningful naming, and test data management. Use when writing tests, reviewing test code, or when the user mentions 'write tests', 'test this', 'test quality', 'test review', 'improve tests', or 'test structure'. Loaded automatically by the code-generating molecules (code-forge, refactor-safely, bug-fix). This skill governs the craft of writing individual test cases -- not what to test (that is driven by the code being implemented) but how to write tests that are reliable, readable, and maintainable.

Feel-ix-343Skill

testing-helix

Feel-ix-343/markdown-oxide/.agents/skills/testing-helix/SKILL.md

Test markdown-oxide LSP features in Helix

s3s-projectSkill

fuzz-testing

s3s-project/s3s/.agents/skills/fuzz-testing/SKILL.md

Add, run or schedule a fuzz target in this repository. Use when a target is added or renamed, when a scheduled run fails, when a crash has to be reproduced from an artifact, or when the fuzz budget and rotation are discussed.

lobehubSkill

local-testing

lobehub/lobe-ui/.agents/skills/local-testing/SKILL.md

Local browser verification for the lobe-ui component library and documentation site. Uses agent-browser against the React Router and Vite development server, including component pages, manifest-backed standalone demos, theme states, and responsive layouts. Trigger on local test, UI test, verify component, test in browser, visual check, or screenshot demo.

grafanaSkill

k6-perf-test-website

grafana/skills/skills/grafana-k6/k6-perf-test-website/SKILL.md

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 a Grafana-side investigation playbook for backends the user owns. Triggers on "perf test my site", "performance test my site", "load test this URL", "stress test my web app", "I want to load test [URL]", "set up k6 against my website", "write a k6 suite for [site]", "see if my site handles N concurrent users", or "how does my site perform under traffic". Use this skill whenever the user mentions k6, load testing, stress testing, performance testing, or wants to validate a website under traffic — even if they don't explicitly use the word "test" or ask for the specific outputs this skill produces. This skill is for a full multi-test suite across several workflows; for a single browser test — functional OR a browser load test measuring Web Vitals for one journey — use k6-browser-test.

eduardo-slSkill

go-test-quality

eduardo-sl/go-agent-skills/skills/(testing)/go-test-quality/SKILL.md

Go testing patterns for production-grade code: subtests, test helpers, fixtures, golden files, httptest, testcontainers, fuzz testing, and testing/synctest. Covers mocking strategies, test isolation, coverage analysis, and test design philosophy. Use when writing tests, improving coverage, reviewing test quality, setting up test infrastructure, or choosing a testing approach. Trigger examples: "add tests", "improve coverage", "write tests for this", "test helpers", "mock this dependency", "integration test", "fuzz test", "flaky test", "synctest", "goroutine leak in tests". Not for: benchmarking methodology (go-performance-review), security testing (go-security-audit), table-driven patterns (go-test-table-driven).

MicrosoftSkill

python-testing

microsoft/agent-framework/python/.github/skills/python-testing/SKILL.md

Guidelines for writing and running tests in the Agent Framework Python codebase. Use this when creating, modifying, or running tests.

Often used withdjango-verification·python-patterns·project-guidelines-example

loulanyueSkill

perl-testing

loulanyue/awesome-claude-notes/skills/perl-testing/SKILL.md

Perl testing patterns using Test2::V0, Test::More, prove runner, mocking, coverage with Devel::Cover, and TDD methodology.

loulanyueSkill

rust-testing

loulanyue/awesome-claude-notes/skills/rust-testing/SKILL.md

Rust testing patterns including unit tests, integration tests, async testing, property-based testing, mocking, and coverage. Follows TDD methodology.

CrowdStrikeReads credentialsSkill

e2e-testing

CrowdStrike/foundry-skills/skills/e2e-testing/SKILL.md

End-to-end testing for Falcon Foundry apps using Playwright and @crowdstrike/foundry-playwright. TRIGGER when user asks to "add e2e tests", "add playwright tests", "write end-to-end tests", "test my app", or mentions "e2e", "playwright", or "end-to-end" in the context of testing a Foundry app. DO NOT TRIGGER during normal app creation, UI development, or function development. This skill is opt-in; not all apps need e2e tests.

Often used witheverything-claude-code·everything-claude-code-conventions·bun-runtime

rosuHSkill

testing-setup

rosuH/EasyWatermark/.agents/skills/testing-setup/SKILL.md

Analyze and create a testing strategy for Android apps - install testing

Douglasst102Reads credentialsSkill

qa-testing

Douglasst102/AgentSkills/.cursor/skills/qa-testing/SKILL.md

Gera e executa testes unitários, de integração e E2E (Playwright) de forma incremental por User Story. Unitários e integração rodam com Jest no container; E2E roda com Playwright no container. Scripts auxiliares em Node.js. Artefatos centralizados em testing/. Use após a implementação de cada User Story para gerar testes, executar a suíte cumulativa e emitir relatório consolidado.

gerphSkill

ci-testing

gerph/riscos-agent-skills/skills/ci-testing/SKILL.md

Create, extend, review, and repair RISC OS CI pipelines, especially GitHub Actions and GitLab CI files, optional matching `.robuild.yaml` or `.robuild.yml` files for build-service jobs, 32-bit and 64-bit builds, build-service testing, artifact packaging, and draft releases. Use when Codex needs to work on `.github/workflows/*.yml`, `.gitlab-ci.yml`, `example-ci.yml`, `.robuild.yaml`, `.robuild.yml`, `riscos-project create-ci`, build.riscos.online integration, or RISC OS packaging/testing patterns for AIF, RM, and library-export projects.

RealTaskSkill

ui-testing

RealTask/MAX-DESIGN/skills/ui-testing/SKILL.md

Build practical UI verification plans for interactions, responsive layouts, accessibility, visual regression, and real-world edge cases.

zazzcodeSkill

qa-testing

zazzcode/zazz-skills/.agents/skills/qa-testing/SKILL.md

Verify a completed change, deliverable, pull request, or local diff against its requirements, acceptance criteria, tests, and project standards. Use when the user wants rigorous QA evidence, test-quality review, rework findings, frontend or backend verification, API collection checks, accessibility checks, performance/security spot checks, or reviewer-ready validation notes.

tebjanSkill

vvvv-testing

tebjan/vvvv-skills/skills/vvvv-testing/SKILL.md

Set up and run automated tests for vvvv gamma packages and C# nodes -- VL.TestFramework with NUnit for library/package authors (CI-ready), test .vl patches with assertion nodes, and lightweight agent-driven test workflows. Use when writing tests for vvvv packages, setting up test infrastructure, creating test patches, running automated compilation checks, or integrating vvvv tests into CI/CD.

TeamHypersomniaReads credentialsSkill

local-testing

TeamHypersomnia/Hypersomnia/.claude/skills/local-testing/SKILL.md

Test Hypersomnia end to end without the user, mainly networking - local masterserver, dedicated servers and CLI clients (UDP and WebRTC), server keys, certs and the identity broker, the web build in Firefox under Xvfb, game UI via screenshots and XTest clicks, the hypersomnia.io site in a scratch copy, isolated builds (native, Steam, web, Ubuntu containers for the remote hosts) and test servers on arena and arenaus. Use whenever the user asks to test something "lokalnie", "headless", "z CLI", "bez mojej ingerencji", "postaw dedyka i połącz się", to check a UI change on screen, or to verify networking, ranked/auth, WebRTC or web build changes before a release. Also for gameplay logic (dropping, picking up, inventory, buying, bots, physics) - "przetestuj", "stestuj sobie", "sprawdź czy działa w grze".