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Claude skills and agent skills

Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.

Best matches · from page 18Worked for most · soon
MicrosoftSkill

ort-test

microsoft/onnxruntime/.github/skills/ort-test/SKILL.md

Run ONNX Runtime tests. Use this skill when asked to run tests, debug test failures, or find and execute specific test cases in ONNX Runtime.

22k41d agoDiscuss
GitHubSkill

spring-boot-testing

github/awesome-copilot/skills/spring-boot-testing/SKILL.md

Expert Spring Boot 4 testing specialist that selects the best Spring Boot testing techniques for your situation with Junit 6 and AssertJ.

39k8d agoDiscuss
devdavvSkill

uw-unity-test-runner

devdavv/unity-ai-workflow/.claude/skills/uw-unity-test-runner/SKILL.md

Generates EditMode and PlayMode tests using NUnit, mapped from GDD Gherkin scenarios. Use when writing tests, validating features, ensuring code quality, or verifying behavior after changes. Triggers on requests like "write tests for this", "test the health system", "add unit tests", "verify this works", "add PlayMode tests", "test this feature", "write integration tests", "make sure this doesn't break", "add test coverage", "TDD this feature", or any task involving test creation, test-driven development, or quality assurance. Maps Given/When/Then scenarios directly to test methods using NUnit assertions.

416mo agoDiscuss
asgard-ai-platformSkill

mkt-ab-testing

asgard-ai-platform/skills/mkt-ab-testing/SKILL.md

Design and execute marketing A/B tests for landing pages, email campaigns, ad creatives, and pricing with proper test design and result analysis. Use this skill when the user needs to test marketing variations, improve conversion rates through experimentation, or decide between two campaign approaches — even if they say 'which version performs better', 'test this landing page', 'A/B test our email subject line', or 'should we change our CTA'.

2384mo agoDiscuss
trotsky1997Skill

pytest-testing

trotsky1997/My-Claude-Agent-Skills/pytest-testing/SKILL.md

Comprehensive guide for writing and running pytest tests in Python projects. Use when (1) Setting up pytest for a new project, (2) Writing test files and test cases, (3) Using fixtures, mocks, and parametrization, (4) Improving test coverage, (5) Debugging test failures, (6) Organizing test structure, or any Python testing tasks with pytest.

79mo agoDiscuss
saikumaryerraSkill

regression-testing-agent

saikumaryerra/AutoCodeReview/.claude/skills/regression-testing-agent/SKILL.md

Design test strategies, generate test cases, analyze test results, and manage regression testing. Use this skill when the user mentions test plans, test cases, regression testing, test coverage, QA, smoke tests, integration tests, E2E tests, test automation, bug triage, or asks "what should we test", "write test cases for this feature", or "analyze these test results". Also triggers for impact analysis ("what could this change break"), flaky test investigation, test data generation, test strategy design, test automation frameworks, coverage analysis, or any request about ensuring software quality through testing. Even casual questions like "did we test enough" or "what's risky about this release" should activate this skill.

03mo agoDiscuss
jmrplensSkill

golang-testing

jmrplens/gitlab-mcp-server/.github/skills/golang-testing/SKILL.md

Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD methodology with idiomatic Go practices.

414mo agoDiscuss
MicrosoftSkill

smoke-tests

microsoft/vscode/.github/skills/smoke-tests/SKILL.md

Use when running VS Code smoke tests or working on smoke-test CI steps. Covers npm run smoketest / smoketest-no-compile, grep filtering tests, and a temporary repeat-loop technique for tracking down flaky smoke tests in CI.

193k21d agoDiscuss
ChrisWilesSkill

testing-patterns

ChrisWiles/claude-code-showcase/.claude/skills/testing-patterns/SKILL.md

Jest testing patterns, factory functions, mocking strategies, and TDD workflow. Use when writing unit tests, creating test factories, or following TDD red-green-refactor cycle.

6.1k9mo agoDiscuss
lawless-mSkill

auto-testing

lawless-m/claude-skills/.claude/skills/auto-testing/SKILL.md

Use when building an automated test → issue → fix loop with Claude Code and GitHub issues — overnight auto-fixing, regression loops, self-healing CI.

64d agoDiscuss
bestdeejay-designSkill

frontend-testing

bestdeejay-design/agent-skills/skills/frontend-testing/SKILL.md

Scaffold and advise on frontend testing for production readiness, mapped to the Front-End-Checklist Testing category (13 rules). Defines a testing pyramid (unit, integration, E2E, visual, a11y, cross-browser, real-device, perf-budget, mutation, error-monitoring, coverage, mocking, contract) and emits copy-pasteable configs: Playwright config + smoke specs, axe a11y (jest-axe / @axe-core/playwright), Pact contract tests, and a GitHub Actions perf-budget + coverage CI. Use when the user asks for 'frontend testing', 'test strategy', 'e2e', 'visual regression', 'playwright setup', 'playwright test', 'unit test', 'integration test', 'write tests', 'test generation', 'test coverage', 'regression test', 'perf budget CI', 'accessibility testing in CI', 'contract testing', 'mutation testing', 'настрой тесты фронта', or wants tests before a release. Scaffolds & advises only — does not run your full CI; you wire the configs in. Composes with frontend-perfection, frontend-a11y, frontend-performance, /frontend.

653d agoDiscuss
ComposioHQSkill

typescript-testing

ComposioHQ/composio/.agents/skills/typescript-testing/SKILL.md

Select and run TypeScript SDK verification for packages, examples, type checks, linting, builds, Vitest suites, Effect v4 CLI tests, and runtime E2E tests. Use when adding tests, diagnosing TypeScript CI, choosing a focused test command, validating TypeScript package changes, or writing/porting CLI tests against effect@4.0.0-rc.115 and @effect/vitest. Do not use for Python-only checks.

30k10d agoDiscuss
shinprSkill

testing-principles

shinpr/claude-code-workflows/skills/testing-principles/SKILL.md

Language-agnostic testing principles including TDD, test quality, coverage standards, and test design patterns. Use when writing tests, designing test strategies, or reviewing test quality.

6856mo agoDiscuss
krodakSkill

testing-clickup-cli

krodak/clickup-cli/.agents/skills/testing-clickup-cli/SKILL.md

Run and manage tests for clickup-cli. Covers unit tests, e2e tests against a real ClickUp workspace, and the test data setup. Use when running tests, adding test coverage, debugging test failures, or setting up test fixtures.

1166mo agoReads credentialsDiscuss
thalysjuvenalSkill

probat-testing

thalysjuvenal/advpl-specialist/skills/probat-testing/SKILL.md

Use when the user needs to write or run unit, functional, or integration tests for TLPP code using ProBat (tlppCore's native testing engine) -- covering @TestFixture, @Test, @Setup/@TearDown, @OneTimeSetUp/@OneTimeTearDown, @Skip, @ErrorLog annotations, the full assertion library (assertEquals, assertTrue, assertVector, assertJson, assertIsRegExFull, etc.), SKIPASSERT, and TDD/CI workflows. Also triggers on Portuguese phrasing like "testes unitarios", "criar teste ProBat", "testar rotina TLPP", "cobertura de testes", or requests to add @Test methods to a TLPP class.

18317d agoDiscuss
upex-galaxySkill

test-automation

upex-galaxy/agentic-qa-boilerplate/.agents/skills/test-automation/SKILL.md

Plan, write, and review automated tests following KATA (Komponent Action Test Architecture) on Playwright + TypeScript, or explain existing automated tests in a sealed read-only mode. Use when writing E2E or API/integration tests, creating Page or Api components, designing ATCs, parameterizing test data, registering fixtures, reviewing test code for KATA compliance, or requesting break-down-tests / a plain-English test breakdown. The explain mode reads source and reports assertions without entering Plan-Code-Review or editing tests. Do NOT use for running suites (regression-testing), documenting TCs in Jira/Xray (test-documentation), onboarding a repo (project-discovery), or orchestrating sprint-wide testing (sprint-testing).

266d agoReads credentialsDiscuss
MongoDBSkill

acceptance-test-patterns

mongodb/terraform-provider-mongodbatlas/.agents/skills/acceptance-test-patterns/SKILL.md

Best practices for writing and organizing acceptance and unit tests in this Terraform provider. Use when creating new tests, modifying existing tests, fixing flaky tests, or reviewing test code. Covers black-box test packages, test consolidation, avoiding duplicates, plural data source ordering, and plan-only validation tests.

27623d agoDiscuss
LoveforwaSkill

spec-driven-test

Loveforwa/spec-test.skill/en/SKILL.md

Use specification-based testing methodology for end-to-end testing of web applications. Use this skill when users request "test this feature", "check this feature completeness", "do E2E testing on this project", "test this web app with an agent", or directly mention spec-driven-test / specification-based testing. This skill also applies to scenarios where users want to automatically generate test specs and test cases from code, then execute tests through browser automation. Even if users don't explicitly mention "spec" or "test case", if they want to systematically and automatically test a specific feature of a web project, this skill should be used.

325mo agoDiscuss
Nice-Wolf-StudioSkill

unity-testing

Nice-Wolf-Studio/unity-claude-skills/skills/unity-testing/SKILL.md

Unity 6 testing guide. Use when writing unit tests, integration tests, or doing TDD with Unity Test Framework. Covers Edit Mode and Play Mode tests, NUnit attributes ([Test], [UnityTest], [SetUp], [TearDown]), testing MonoBehaviours and coroutines, and CI/CD integration. Based on Unity 6.3 LTS documentation.

3216d agoDiscuss
Shekhar23Skill

android-instrumentation-testing

Shekhar23/claude-zero-to-hero-android-KMP/skills/android-instrumentation-testing/SKILL.md

Instrumentation and end-to-end testing for Android - Espresso, UI Automator, Compose test rules, Hilt test injection, navigation end-to-end, IdlingResource for async ops, and running tests on Firebase Test Lab. Use this skill whenever writing tests that run on a device or emulator, testing full user flows across multiple screens, replacing Hilt modules in tests, or setting up a device test matrix in CI. Trigger on phrases like "instrumentation test", "Espresso", "UI test", "UI Automator", "end-to-end test", "HiltAndroidTest", "createAndroidComposeRule", "integration test on device", "Firebase Test Lab", or "IdlingResource".

96mo agoDiscuss
CLAUDE.md vs AGENTS.md

About skills

What is a Claude skill?

A folder with a SKILL.md file: a name, a description of when to use it, and instructions. Claude loads a skill only when the task matches its description.

How do I use one I find here?

Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.

What do the warnings mean?

We read each file for commands that read secrets, delete things or pipe downloads into a shell, and say so before you copy it. No warning is not a promise that a file is safe.

Which skills worked for people?

Open a skill to see its discussion. Reports from people and their agents are coming.