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 2Worked for most · soon
langflow-aiReads credentialsSkill

e2e-testing

langflow-ai/langflow/.agents/skills/e2e-testing/SKILL.md

Write and review Playwright E2E tests for Langflow. Trigger when the user asks to write, fix, or review E2E tests, spec files, Playwright tests, or integration tests that exercise the full UI. Also trigger when modifying data-testid attributes, test helpers in tests/utils/, or fixture configuration.

92 projects use a version of this

Often used witheverything-claude-codeeverything-claude-code-conventionsbun-runtime

156k20d agoReviewMountCreate a free account to mount
All-Hands-AISkill

e2e-testing

All-Hands-AI/OpenHands/.agents/skills/e2e-testing/SKILL.md

This skill should be used when the user asks to "add an E2E test", "run live E2E", "run mock-LLM tests", "debug Playwright CI", "test the Docker image", or changes tests/e2e, Playwright configs, E2E workflows, artifacts, or test reporting.

92 projects use a version of this

Often used witheverything-claude-codeeverything-claude-code-conventionsbun-runtime

93k6d agoReviewMountCreate a free account to mount
AnthropicSkill

sox-testing

anthropics/knowledge-work-plugins/finance/skills/sox-testing/SKILL.md

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 workpaper template, or evaluating and classifying a control deficiency.

Steady8 mentions in 2 weeks

1 project uses a version of this

35k10mo agoReviewMountCreate a free account to mount
krayinSkill

pest-testing

krayin/laravel-crm/.github/skills/pest-testing/SKILL.md

Use when writing or updating Krayin CRM tests (unit or feature), debugging test failures, using datasets, mocks or custom expectations, writing architecture tests, or when the user mentions test, spec, TDD, expects, assertion, or coverage. Uses the Pest PHP framework (v3) with Laravel 12.

Often used withlivewire-developmenttailwindcss-developmentlaravel-best-practices

24k5y agoReviewMountCreate a free account to mount
ElasticSkill

ftr-testing

elastic/kibana/.agents/skills/ftr-testing/SKILL.md

Deep reference for the Kibana Functional Test Runner (FTR). Use when reading, analyzing, debugging, or reviewing FTR tests, including config anatomy, services, page objects, loadTestFile patterns, data loading, tags, CI wiring, and common FTR idioms.

Steady2 mentions in 2 weeks

No other project uses it yet

21k5mo agoReviewMountCreate a free account to mount
SentrySkill

hybrid-cloud-test-gen

getsentry/sentry/.agents/skills/hybrid-cloud-test-gen/SKILL.md

Generate hybrid cloud tests for the Sentry codebase. Use when asked to "generate HC test", "create hybrid cloud test", "write HC test", "add HC test", "write RPC test", "test RPC service", "silo test", "cross-silo test", "outbox test", "API gateway test", or "endpoint silo test". Covers RPC service tests, API gateway tests, outbox pattern tests, and API endpoint tests with silo decorators.

No other project uses it yet

46k5mo agoReviewMountCreate a free account to mount
abpframeworkSkill

abp-testing

abpframework/abp/.agents/skills/abp-testing/SKILL.md

ABP testing patterns - integration tests over unit tests, GetRequiredService, IDataSeedContributor, Shouldly assertions, AddAlwaysAllowAuthorization, NSubstitute mocking, WithUnitOfWorkAsync. Use when writing or reviewing tests for application services, domain services, or repositories in ABP projects.

14k8mo agoReviewMountCreate a free account to mount
apereoSkill

cas-testing

apereo/cas/.claude/skills/cas-testing/SKILL.md

Run and write tests in the CAS Gradle monorepo: testcas.sh categories, JUnit tags, single-module test tasks, fast compile checks, how tests stay correct under JUnit parallel execution (shared registries, ports, pac4j clients, negative assertions), test authentications and principal attributes, and ticket-granting cookies in MockMvc tests. Use when running tests, choosing a test category, writing or fixing a *Tests.java class, or chasing a flaky test.

11k12d agoReviewMountCreate a free account to mount
manaflow-aiSkill

cmux-testing

manaflow-ai/cmux/skills/cmux-testing/SKILL.md

Choose scoped cmux verification, add behavioral tests, and validate Swift test targets and wiring. Use when adding tests or deciding what local/CI evidence a change needs.

29k48d agoReviewMountCreate a free account to mount
dotnetSkill

evaluate-pr-tests

dotnet/maui/.github/skills/evaluate-pr-tests/SKILL.md

Evaluates tests added in a PR for coverage, quality, edge cases, and test type appropriateness. Checks if tests cover the fix, finds gaps, and recommends lighter test types when possible. Prefer unit tests over device tests over UI tests. Triggers on: 'evaluate tests in PR', 'review test quality', 'are these tests good enough', 'check test coverage', 'is this test adequate', 'assess test coverage for PR'.

23k16d agoReviewMountCreate a free account to mount
JeffallanSkill

test-master

Jeffallan/claude-skills/skills/test-master/SKILL.md

Generates test files, creates mocking strategies, analyzes code coverage, designs test architectures, and produces test plans and defect reports across functional, performance, and security testing disciplines. Use when writing unit tests, integration tests, or E2E tests; creating test strategies or automation frameworks; analyzing coverage gaps; performance testing with k6 or Artillery; security testing with OWASP methods; debugging flaky tests; or working on QA, regression, test automation, quality gates, shift-left testing, or test maintenance.

15 projects use a version of this

12k11mo agoReviewMountCreate a free account to mount
AnthropicSkill

testing-strategy

anthropics/knowledge-work-plugins/engineering/skills/testing-strategy/SKILL.md

Design test strategies and test plans. Trigger with "how should we test", "test strategy for", "write tests for", "test plan", "what tests do we need", or when the user needs help with testing approaches, coverage, or test architecture.

Surging8 mentions in 2 weeks

54 projects use a version of this

35k10mo agoReviewMountCreate a free account to mount
SentrySkill

react-testing

getsentry/sentry/.agents/skills/react-testing/SKILL.md

Write and review React/TypeScript tests for Sentry's frontend using Jest and React Testing Library. Use when adding or editing tests in static/ (*.spec.tsx), writing component/hook tests, mocking API responses with MockApiClient, testing routing or network requests, or when asked to "write a frontend test", "add a React test", "test this component", or "fix a flaky RTL test".

19 projects use a version of this

46k5mo agoReviewMountCreate a free account to mount
AnthropicSkill

webapp-testing

anthropics/skills/skills/webapp-testing/SKILL.md

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

Often used withskill-shareintelligent-routingartifacts-builder

189k3mo agoReviewMountCreate a free account to mount
PydanticReads credentialsSkill

testing-skill

pydantic/pydantic-ai/.claude/skills/testing-skill/SKILL.md

Record, rewrite, and debug VCR cassettes for HTTP recordings. Use when running tests with --record-mode, verifying cassette playback, or inspecting request/response bodies in YAML cassettes.

21k7d agoReviewMountCreate a free account to mount
JetBrainsSkill

build-tools-add-test-federation-annotations-to-integration-tests

JetBrains/kotlin/.claude/skills/build-tools-add-test-federation-annotations-to-integration-tests/SKILL.md

Annotate test classes in `kotlin-gradle-plugin-integration-tests` with Test Federation annotations (`@MustRunOnChangesInXYZ` / `@MustRunAlways`). Use this whenever the user asks to annotate, review, or fix Test Federation annotations on an integration test class, or to assess a test class for cross-domain dependencies under Test Federation (KT-87614).

54k9d agoReviewMountCreate a free account to mount
NVIDIASkill

mcore-testing

NVIDIA/Megatron-LM/skills/mcore-testing/SKILL.md

Test system for Megatron-LM. Covers test layout, recipe YAML structure, adding and running unit and functional tests, golden values, marker filters, and CI parity. Use when adding or running a unit or functional test; understanding the test layout; writing a recipe YAML; downloading or updating golden values; reproducing a test failure locally; 'how do I add a test', 'run unit tests', 'pytest fails', 'test layout', 'golden values', 'recipe YAML', 'marker filter'.

18k22d agoReviewMountCreate a free account to mount
SupabaseSkill

studio-testing

supabase/supabase/.agents/skills/studio-testing/SKILL.md

Testing strategy for Supabase Studio. Use when selecting, writing,

115k47d agoReviewMountCreate a free account to mount
sgl-projectSkill

write-sglang-test

sgl-project/sglang/.agents/skills/write-sglang-test/SKILL.md

Guide for writing SGLang CI/UT tests. Covers CustomTestCase, CI registration, which tier (base, extra, nightly, weekly) and runner a test belongs to, server fixtures, model selection, mock testing, and test placement. Always read test/README.md for the full CI layout, how to run tests, and extra tips. Use when creating new tests, adding CI test cases, writing unit tests, moving a test between tiers, or when the user asks to add tests for SGLang features.

39k8d agoReviewMountCreate a free account to mount
TypeCellOSSkill

testing-skill

TypeCellOS/BlockNote/.claude/skills/testing-skill/SKILL.md

Instructions for writing, running, and updating unit/end-to-end tests. Should be used when prompted specifically to add tests for a given feature, bug, or regression.

Steady15 mentions in 2 weeks

1 project uses a version of this

10k54d 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.