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.
h0rn3tSkillh0rn3t/golang-skills/skills/go-testing/SKILL.md
Use when writing, reviewing, or improving Go test code — including table-driven tests, subtests, parallel tests, test helpers, test doubles, and assertions with cmp.Diff. Also use when a user asks to write a test for a Go function, even if they don't mention specific patterns like table-driven tests or subtests. Does not cover benchmark performance testing (see go-performance).
drvossSkilldrvoss/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.
martinholovskySkillmartinholovsky/SOTA-skills/skills/sota-testing/SKILL.md
State-of-the-art software testing strategy and practice (2026) for designing test strategy, writing unit/integration/e2e tests, or auditing test suites. Covers suite shape (pyramid/trophy/honeycomb), test design quality (behavior-first, AAA, determinism, smells), test doubles (mocks/fakes/stubs), test data (builders over fixtures), real-dependency integration (Testcontainers-style), contract testing (Pact/consumer-driven), e2e/UI strategy (selectors, auto-waiting, flake economics), property-based testing, fuzzing, mutation testing, approval testing, and suite health/CI (flaky-test policy, coverage philosophy, sharding). Trigger keywords - testing, test strategy, unit test, integration test, e2e, end-to-end, coverage, flaky tests, TDD, contract testing, property-based, mocking, fixtures, snapshot test, mutation testing, fuzzing, BDD, Gherkin, given-when-then, acceptance criteria, security testing, WSTG, IDOR test, authz test, abuse case, DAST. Use for BOTH building and auditing test suites.
Postman-DevrelSkillPostman-Devrel/postman-claude-code-plugin/skills/api-testing/SKILL.md
Runs tests against an API from the command line — a single ad-hoc request, a full collection of pm.test assertions, or matching real captured app traffic against a collection contract. Use when the user asks to "test this endpoint," "run this collection," "check the API still works," or "verify my app's requests match the contract." Covers `postman request`, `postman collection run`, and `postman application test`. Depends on bootstrap when the target is a cloud collection or workspace-bound environment; a bare URL or local collection needs nothing from bootstrap.
AWSSkillaws/agent-toolkit-for-aws/plugins/aws-agents-for-devsecops/skills/running-release-tests/SKILL.md
Run automated release testing (UI or API) via the AWS DevOps Agent using a pre-configured test profile. Use when the user wants to validate multi-step workflows, verify features, check for regressions, or test API endpoints. Trigger words include run tests, UAT, test my app, test profile, UI test, API test, automated testing, regression test, QA, end-to-end test, run the QA agent.
MicrosoftSkillmicrosoft/testfx/.agents/skills/mtp-hot-reload/SKILL.md
Suggests using Microsoft Testing Platform (MTP) hot reload to iterate fixes on failing tests without rebuilding. Use when user says "hot reload tests", "iterate on test fix", "run tests without rebuilding", "speed up test loop", "fix test faster", or needs to set up MTP hot reload to rapidly iterate on test failures. Covers setup (NuGet package, environment variable, launchSettings.json) and the iterative workflow for fixing tests. DO NOT USE FOR: writing test code, diagnosing test failures, running tests normally with dotnet test (use run-tests), applying test filters, producing TRX reports, CI/CD pipeline configuration, or Visual Studio Test Explorer hot reload (which is a different feature).
loulanyueSkillloulanyue/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.
loulanyueSkillloulanyue/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.
MicrosoftSkillmicrosoft/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.
zazzcodeSkillzazzcode/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.
SentrySkillgetsentry/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.
tebjanSkilltebjan/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.
harunkurtdevSkillharunkurtdev/ros2-claude-code-template/.claude/skills/ros2_testing/SKILL.md
ROS2 test strategies and patterns with Clean Architecture (Python & C++)
SentrySkillgetsentry/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`.
IntegralistSkillIntegralist/agent-skills/.agents/skills/go-testing/SKILL.md
Write unit and integration tests for Go services. Use when creating, editing, or updating tests, test helpers, mocks, fuzz tests, or benchmarks in Go projects.
iwritec0deSkilliwritec0de/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.
rundopsSkillrundops/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.
black12-agSkillblack12-ag/weft/.agents/skills/tui-testing/SKILL.md
Write and run unit tests for Warp TUI (crates/warp_tui) elements/screens by rendering to text lines. Use for TUI test work.
motionharvestSkillmotionharvest/agent-skills/ab-testing/SKILL.md
Use after audience-site-brief Phase 6 (UX design optimization) to plan conversion experiments. Produces a prioritized test backlog using the PIE framework (Potential, Importance, Ease), hypothesis templates, and persona-calibrated CTA variants. Run before launch to identify what to validate first, not what to guess at.
Shri-PhnxSkillShri-Phnx/claude-skills/skills/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.
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 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.
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.
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
