agentleFS

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 20Worked for most · soon
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.

423d agoReviewMountCreate a free account to mount
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.

43mo agoReviewMountCreate a free account to mount
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.

347d agoReviewMountCreate a free account to mount
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".

1.7k6d agoReviewMountCreate a free account to mount
SentrySkill

test-guidelines

getsentry/sentry-dart/.agents/skills/test-guidelines/SKILL.md

Enforce Sentry Dart/Flutter SDK test conventions for naming, structure, and fixtures. Use when writing tests, adding tests, modifying tests, reviewing test code, fixing failing tests, adding test coverage, TDD, test-first / red-green, reproducing bugs with tests, regression tests, or test refactoring in any package in this Melos monorepo.

87722d agoReviewMountCreate a free account to mount
NuGetSkill

apex-migration

NuGet/NuGet.Client/.agents/skills/apex-migration/SKILL.md

Migrate NuGet PowerShell E2E tests to C# Apex tests or unit tests. Use this skill whenever the user asks to migrate, convert, or port a PowerShell end-to-end test from test/EndToEnd/tests/ to an Apex test in test/NuGet.Tests.Apex/ or to a unit test in test/NuGet.Clients.Tests/NuGetConsole.Host.PowerShell.Test/. Also trigger when the user mentions "Apex test", "migrate PS test", "E2E test migration", "PMC test", "cmdlet unit test", "PowerShell unit test", or references any PowerShell test function like Install-PackageTest or Update-PackageTest and wants it rewritten in C#. Even if the user just says "migrate this test" while looking at a PS E2E file, use this skill. Also trigger whenever the user wants to write a new Apex test or a new PMC cmdlet unit test.

8225d agoReviewMountCreate a free account to mount
dotnetSkill

review-testing

dotnet/orleans/.github/skills/review-testing/SKILL.md

Testing lens for Orleans — spec-derived oracles, example tests, Accordant model-based tests, CsCheck property-based tests, deterministic simulation with controlled time, fault injection, and Verify snapshots. Use during code review, and when planning or writing tests.

11k2d agoReviewMountCreate a free account to mount
DatabricksReads credentialsSkill

load-testing

databricks/app-templates/agent-langgraph-advanced/.claude/skills/load-testing/SKILL.md

Load test a Databricks App to find its maximum QPS. Use when: (1) User says 'load test', 'benchmark', 'QPS', 'throughput', or 'performance test', (2) User wants to find how many queries per second their app can handle, (3) User wants to set up load testing scripts for their agent, (4) User wants to view load test results/dashboard, (5) User wants to validate results or observe latency/error rate with MLflow tracing.

21725d agoReviewMountCreate a free account to mount
harunkurtdevSkill

ROS2 Testing

harunkurtdev/ros2-claude-code-template/.claude/skills/ros2_testing/SKILL.md

ROS2 test strategies and patterns with Clean Architecture (Python & C++)

2145mo agoReviewMountCreate a free account to mount
OrchardCMSSkill

orchardcore-unit-test

OrchardCMS/OrchardCore/.agents/skills/orchardcore-unit-test/SKILL.md

Writes and runs OrchardCore tests — xUnit unit tests, SiteContext-based integration tests, Moq mocking, and Playwright functional tests. Use when the user needs to add a test, set up a test harness/tenant for tests, mock OrchardCore services, or run the test suite.

8.2k16d agoReviewMountCreate a free account to mount
petrkindlmannSkill

unit-testing

petrkindlmann/qa-skills/skills/unit-testing/SKILL.md

Write effective unit tests with Jest, Vitest, or pytest. Covers the test-doubles taxonomy (stub/spy/mock/fake), Arrange-Act-Assert, coverage threshold configuration and CI gating, snapshot testing, fake timers, and mutation testing with Stryker/mutmut. Use when: "unit test," "Jest," "Vitest," "pytest," "mock," "coverage threshold," "test doubles," "mutation testing," "fake timers," "snapshot test." Not for: interpreting coverage reports or finding coverage gaps — use coverage-analysis; AI generating the test code for you — use ai-test-generation; auditing existing tests for smells — use ai-qa-review; browser/component rendering assertions — use cypress-automation or visual-testing. Related: coverage-analysis, ci-cd-integration, ai-test-generation, shift-left-testing.

2097mo agoReviewMountCreate a free account to mount
joshuadavidthomasSkill

djls-testing

joshuadavidthomas/django-language-server/.agents/skills/djls-testing/SKILL.md

Use when running tests, fixing failing tests, updating snapshots, syncing corpus data, validating before push, or working with Django matrix testing in django-language-server. Handles cargo, just, nox, insta, corpus, clippy, fmt, and lint commands.

2072d agoReviewMountCreate a free account to mount
bklitSkill

unit-tests

bklit/bklit-ui/.agents/skills/unit-tests/SKILL.md

Guardrails for adding unit tests in bklit-ui without over-testing. Use when the user mentions unit test, unit tests, tests, test coverage, add tests, write tests, vitest, jest, or asks whether something should be tested.

Often used withauto-perf-optimizechat-customizations-editorcomponent-fixtures

1.9k3d agoReviewMountCreate a free account to mount
SentrySkill

test-guidelines

getsentry/sentry-react-native/.agents/skills/test-guidelines/SKILL.md

Enforce Sentry React Native SDK test conventions for naming, structure, mocking, and fixtures with Jest. Use when writing tests, adding tests, modifying tests, reviewing test code, fixing failing tests, adding coverage, TDD, test-first / red-green, reproducing bugs with tests, regression tests, or test refactoring in `packages/core`.

1.8k2mo agoReviewMountCreate a free account to mount
anis-drSkill

ab-testing

anis-dr/skills/skills/marketing/ab-testing/SKILL.md

When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "should I test this," "which version is better," "test two versions," "statistical significance," "how long should I run this test," "growth experiments," "experiment velocity," "experiment backlog," "ICE score," "experimentation program," or "experiment playbook." Use this whenever someone is comparing two approaches and wants to measure which performs better, or when they want to build a systematic experimentation practice. For tracking implementation, see analytics. For page-level conversion optimization, see cro.

34 projects use a version of this

Often used withfree-toolsmarketing-councilemails

338d agoReviewMountCreate a free account to mount
iwritec0deSkill

js-testing

iwritec0de/app-dev/skills/js-testing/SKILL.md

This skill should be used when the user asks to 'write tests', 'add test coverage', 'test a component', 'test an API route', 'test a hook', 'set up Vitest', 'use React Testing Library', 'mock an API', or mentions 'component testing', 'integration tests', 'vitest', 'RTL', 'msw', 'testing library'. Provides JavaScript/TypeScript testing patterns using Vitest and React Testing Library for Next.js applications.

37mo agoReviewMountCreate a free account to mount
masonhuemmerSkill

tui-testing

masonhuemmer/dops/.claude/skills/tui-testing/SKILL.md

Visual testing of TUI and CLI output using VHS and Freeze. Use when making changes to TUI views, CLI output formatting, theme styling, layout, or any visual component. Must be used after any change to View() functions, lipgloss styles, footer, sidebar, metadata, output pane, wizard overlay, or CLI error formatting.

37mo agoReviewMountCreate a free account to mount
omspradippatilSkill

testing-qa

omspradippatil/Claude-Skills/.agents/skills/testing-qa/SKILL.md

Activate this skill for unit tests, TDD, Playwright E2E tests, Jest/Vitest setups, test strategy design, or stabilizing flaky test suites. Use when writing reliable tests, mocking boundaries, or setting up automated regression verification.

310d agoReviewMountCreate a free account to mount
kid-sidSkill

unit-testing

kid-sid/claude-spellbook/skills/unit-testing/skill.md

Use when writing unit tests for a function or module, mocking external dependencies, practising TDD on new business logic, or enforcing a coverage target across a codebase in Python, TypeScript, or Go.

1906mo agoReviewMountCreate a free account to mount
jabrenaSkill

421-frameworks-quarkus-testing-unit-tests

jabrena/cursor-rules-java/skills/421-frameworks-quarkus-testing-unit-tests/SKILL.md

Use when you need to write fast unit tests for Quarkus applications — including pure tests with @ExtendWith(MockitoExtension.class), @QuarkusTest with @InjectMock for full CDI mock replacement, @InjectSpy for partial CDI bean mocking, REST Assured for resource-focused tests, @ParameterizedTest with @CsvSource / @MethodSource, QuarkusTestProfile for test-specific configuration overrides, and naming conventions (*Test → Surefire, *IT → Failsafe). For framework-agnostic Java use @131-java-testing-unit-testing. This should trigger for requests such as Add or improve unit tests in a Quarkus project; Reduce slow @QuarkusTest usage with Mockito-first tests; Add @InjectSpy partial mocking or QuarkusTestProfile configuration in Quarkus tests; Convert repeated test methods to @ParameterizedTest with @CsvSource or @MethodSource; Write fast pure unit tests for Quarkus services. Part of Plinth Toolkit

4583mo agoReviewMountCreate a free account to mount
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.