Find the best CLAUDE.md, AGENTS.md and Claude skills

One search for your own team's files and the public ecosystem. See how real projects write their agent instructions, and bring the good ideas home.

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“testing” 1k+ stars Hiding risky files

lobehubSkill

testing

lobehub/lobehub/.agents/skills/testing/SKILL.md

Use for Vitest tests, mocks, coverage and failing-test diagnosis.

83k3d agoDiscuss

iOfficeAISkill

testing

iOfficeAI/AionUi/.claude/skills/testing/SKILL.md

Testing workflow and quality standards for writing and running tests. Use when: (1) Writing new tests, (2) Adding a new feature that needs tests, (3) Modifying logic that has existing tests, (4) Before claiming a task is complete.

33k6mo agoDiscuss

JetBrainsSkill

testing

JetBrains/intellij-community/.agents/skills/testing/SKILL.md

Run or troubleshoot IntelliJ `tests.cmd` tests and discovery.

21k8d agoDiscuss

JetBrainsSkill

testing

JetBrains/intellij-community/.claude/skills/testing/SKILL.md

Run or troubleshoot IntelliJ `tests.cmd` tests and discovery.

21k8d agoDiscuss

kortix-aiSkill

testing

kortix-ai/suna/.agents/skills/testing/SKILL.md

Use for every Kortix test task, behavior change, bug fix, refactor, API route change, CLI change, SDK change, browser journey, test failure, coverage question, local benchmark, or testing infrastructure change. Enforce the single local-first runner, black-box flow contracts, package-local SDK tests, browser-only Playwright tests, and real input/output verification.

20k3d agoDiscuss

Model Context ProtocolSkill

testing

modelcontextprotocol/inspector/.claude/skills/testing/SKILL.md

Run, place and fix tests in this repo. Use when choosing which npm command runs a given suite (web unit, web integration, Storybook, cli, tui, launcher, scripts); when deciding where a new test file belongs — beside its source, under src/test/, or in a client's __tests__/; when a per-file coverage check fails or a v8 ignore is in question; when asking which test tier spawns the built binary rather than importing it; or when rendering, mounting or asserting on Mantine components and their transitions in a test.

11k8d agoDiscuss

MicrosoftSkill

testing

microsoft/fast/.github/skills/testing/SKILL.md

Use this skill when running or writing tests in the FAST monorepo — local test execution, CI workflows, Playwright fixtures, and WebUI integration testing.

9.7k4mo agoDiscuss

bytebaseSkill

testing

bytebase/dbhub/.claude/skills/testing/SKILL.md

Run and troubleshoot tests for DBHub, including unit tests, integration tests with Testcontainers, and database-specific tests. Use when asked to run tests, fix test failures, debug integration tests, troubleshoot Docker/database container issues, or add new tests. Also use when verifying code changes work correctly or when CI test failures need investigation.

3.6k11d agoDiscuss

BankrBotSkill

Testing

BankrBot/skills/ethskills-testing/SKILL.md

Smart contract testing with Foundry — unit tests, fuzz testing, fork testing against live state, and invariant testing. What to test, what to skip, and what LLMs commonly get wrong.

1.2k5mo agoDiscuss

vm0-aiSkill

testing

vm0-ai/vm0/.claude/skills/testing/SKILL.md

Comprehensive testing patterns and anti-patterns for writing and reviewing tests

1.2k6mo agoDiscuss

CloudflareSkill

testing

cloudflare/sandbox-sdk/.agents/skills/testing/SKILL.md

Use when writing or running tests for this project. Covers unit vs E2E test decisions, test file locations, mock patterns, and project-specific testing conventions. (project)

1.1k4mo agoDiscuss

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.

26k8mo agoDiscuss

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.

21k3mo agoDiscuss

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.

45k3mo agoDiscuss

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.

27k3d agoDiscuss

mrgoonieSkill

web-testing

mrgoonie/claudekit-skills/.claude/skills/web-testing/SKILL.md

Web testing with Playwright, Vitest, k6. E2E/unit/integration/load/security/visual/a11y testing. Use for test automation, flakiness, Core Web Vitals, mobile gestures, cross-browser.

2.2k11mo agoDiscuss

SentrySkill

write-tests

getsentry/sentry-javascript/.agents/skills/write-tests/SKILL.md

Write high-quality unit tests (Vitest) and E2E tests (Playwright) following senior test-engineering practices. Use this skill whenever asked to write tests, add test coverage, create test cases, fix failing tests, add missing assertions, test a new feature, write specs, or cover edge cases. Also trigger when the user says "write tests for", "add tests", "test this", "cover this", "needs tests", "add E2E test", "add unit test", "test coverage", or when reviewing code and noticing missing test coverage.

8.7k3d agoDiscuss

codeaholicguySkill

dev-testing

codeaholicguy/ai-devkit/skills/dev-testing/SKILL.md

AI DevKit · Testing phase guidance for adding and validating feature test coverage. Use when the user wants to write tests, update testing docs, run coverage, close coverage gaps, or run dev-lifecycle phase 8.

1.6k16d agoDiscuss

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.

26k8mo agoDiscuss

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".

45k3mo agoDiscuss

CLAUDE.md vs AGENTS.md

Agent instruction files

What are agent instruction files?

Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.

CLAUDE.md or AGENTS.md?

CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.

What is a skill?

A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.

Can I search my own team's files too?

Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.