Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
Ordo-EngineSkillOrdo-Engine/Ordo/.cursor/skills/ordo-testing/SKILL.md
Ordo testing and benchmarking guide. Includes unit tests, integration tests, Criterion benchmarks, k6 load tests, CI configuration. Use for writing tests, performance analysis, continuous integration.
OyadotAISkillOyadotAI/oya-browser/.claude/skills/test/SKILL.md
test
PostHogSkillPostHog/posthog/.agents/skills/fixing-flaky-tests/SKILL.md
Guides an agent through reproducing, root-causing, fixing, and validating flaky tests in the PostHog monorepo. Use when a test fails intermittently in CI but passes on rerun or locally, when `hogli ci:insights` or the debugging-ci-failures skill classifies a failure as a flaky test, when given a GitHub Actions URL for a flaky job, when asked to check Trunk Flaky Tests for a test, PR, or master, or when asked to deflake, stabilize, or fix a flaky Jest, pytest, or Playwright test. Core discipline: reproduce locally before changing anything, fix the root cause (never mask it with sleeps, retries, or bigger timeouts), and prove the fix with an N-run validation loop sized to the observed failure rate. Stabilizing is not the only valid outcome — the skill also gates whether the test should exist, so deleting a test that catches nothing real, or re-leveling one that flakes because of the level it runs at, are first-class endings.
kenn-ioSkillkenn-io/agentsview/.agents/skills/testing-without-tautologies/SKILL.md
Use when creating, editing, fixing, or reviewing tests; when adding mocks, fakes, assertions, unit tests, PG integration tests, frontend component tests, or Playwright e2e tests; or when changing tests after failures.
withkynamSkillwithkynam/vibecode-pro-max-kit/.claude/skills/vc-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.
jx1100370217Skilljx1100370217/my-openclaw-skills/ios-testing/SKILL.md
Implement comprehensive testing strategies for iOS apps. Use when writing unit tests, UI tests, integration tests, snapshot tests, setting up test coverage, mocking dependencies, or implementing TDD. Part of the idea-to-App-Store workflow between development and CI/CD.
pyaephyo11979Skillpyaephyo11979/rent4U/.claude/skills/web-testing/SKILL.md
Testing Skill End-to-end and integration testing guidelines for the full Rent4U stack. ## Stack - **E2E:** Playwright (recommended) or Cypress - **API integration:** Supertest against running backend - **Frontend unit:** Vitest + React
Ron-daliSkillRon-dali/vibe-coding-rules/web-testing/SKILL.md
Automated web application testing. Uses Playwright (browser interaction + DOM assertion) + tesseract.js (OCR screenshot text verification). Supports pipeline.json configuration for project URL, port, and DOM selectors.
XYOracleNetworkSkillXYOracleNetwork/xyo-skills/skills/xl1-testing/SKILL.md
How to test and verify XL1 work — choosing and running the right verification approach. Groups headless verification methods: Sequence testnet verification (in-process seed-phrase signer), local dev-chain verification (public xl1 CLI or vitest-owned chains via public @xyo-network/dapp-kit-vitest-config local-xl1, or XYO-internal @xyo-network/xl1-vitest-config apiLocal), composed local chain + Aries data-store verification, full local dApp backend verification (aries-dapp-core classic path or dapp-kit local path), unattended Sequence testing via @xyo-network/wallet-xl1-cli, and headless browser-mode testing (vitest + Playwright). Includes shared testnet-only safety rules. Activates when an agent needs to test, verify, or smoke-test an XL1 dApp or protocol change, run on-chain tests against a local chain or Sequence, run headless browser tests, or set up unattended / CI testing.
anchildress1Skillanchildress1/awesome-github-copilot/skills/test-writer/SKILL.md
Write, extend, or review tests in any codebase. Use this skill whenever the user asks to write tests, add test coverage, test a new feature, fix failing tests, or audit existing test files — regardless of language, framework, or project. Also trigger for "add tests for", "write tests for", "cover this with tests", "test this file", "update the tests", "improve coverage", or "this needs tests". This skill enforces universal testing rules (no .skip, no lowering thresholds, full-path coverage) and adapts its mock patterns and tooling to whatever stack the repo uses.
NVIDIASkillNVIDIA/TensorRT-LLM/.claude/skills/trtllm-test-specialist/SKILL.md
Runs model-level and module-level tests for TensorRT-LLM. First classifies the test scope (module test or model test), then dispatches to the appropriate workflow. Model tests are further classified by type (functionality/smoke test, benchmark, or evaluation). Prompts the user for parallelism parameters (tp, ep, dp), dataset paths, device type, or a config file as needed. All test execution is delegated to trtllm-case-executor.
irahardiantoSkillirahardianto/awesome-agv/.agents/skills/chaos-testing/SKILL.md
Controlled failure injection: hypothesis design, blast radius control, safety mechanisms, game day planning, and resilience verification.
OpenAISkillopenai/codex/.codex/skills/remote-tests/SKILL.md
Testing against remote executors in integration tests.
bocatoSkillbocato/swift-testing-agent-skill/swift-testing/SKILL.md
Expert guidance on Swift Testing best practices, patterns, and implementation. Use when developers mention: (1) Swift Testing, @Test, #expect, #require, or @Suite, (2) "use Swift Testing" or "modern testing patterns", (3) test doubles, mocks, stubs, spies, or fixtures, (4) unit tests, integration tests, or snapshot tests, (5) migrating from XCTest to Swift Testing, (6) TDD, Arrange-Act-Assert, or F.I.R.S.T. principles, (7) parameterized tests or test organization.
PipelexSkillPipelex/pipelex/.claude/skills/test-model/SKILL.md
Test an AI model on a specific backend using the Pipelex inference test infrastructure. Handles test profile creation, fixture regeneration, and running the right test class for the model type (LLM, image gen, extract, search). Use when the user says "test model X", "test gpt-5.4 on openai", "test model on gateway", "run inference test for model", "try model X on backend Y", "verify model X works", or any variation of running inference tests against a specific model on a specific backend. Also use when the user mentions testing a model after adding it, or wants to verify a model works end-to-end with real API calls.
MicrosoftSkillmicrosoft/testfx/.agents/skills/test-gap-analysis/SKILL.md
Performs pseudo-mutation analysis on production code in any language to find gaps in existing test suites. Use when the user asks to find weak tests, discover untested edge cases, check if tests would catch a bug, or evaluate test effectiveness through mutation-style reasoning. Analyzes production code for mutation points (boundaries, boolean flips, null/None/nil returns, exception/error removal, arithmetic changes) and checks whether tests would detect each mutation. Polyglot: .NET (MSTest/xUnit/NUnit/TUnit), Python (pytest/unittest), TS/JS (Jest/Vitest/Mocha/node:test), Java (JUnit/TestNG), Go, Ruby (RSpec/Minitest), Rust, Swift, Kotlin (JUnit/Kotest), PowerShell (Pester), C++ (GoogleTest/Catch2). DO NOT USE FOR: writing new tests (use code-testing-agent, or writing-mstest-tests for MSTest), detecting anti-patterns (use test-anti-patterns), measuring assertion diversity (use assertion-quality), or running actual mutation testing tools (Stryker, mutmut, PIT, cargo-mutants).
int2t05Skillint2t05/engineering-skills/skills/06-test/api-testing/SKILL.md
Use when testing APIs or designing API test strategies — contract testing, REST/GraphQL testing, and integration testing. Triggers on "test API", "contract testing", "integration test", "API 测试", "接口测试", "契约测试".
williamcorrea23Skillwilliamcorrea23/sap-router-skill/.agents/skills/abap-unit-testing/SKILL.md
Help with ABAP Unit testing including test class setup, assertions, test doubles, mocking frameworks, dependency injection, CDS test environments, SQL test environments, RAP BO test doubles, and test fixtures. Use when users ask about ABAP unit tests, test classes, test methods, CL_ABAP_UNIT_ASSERT, test doubles, mocking, CDS test environment, SQL test environment, RAP testing, ABAP test injection, test seams, behavior-driven testing, TDD in ABAP, test isolation, or writing automated tests for ABAP code. Triggers include "write a unit test", "create test class", "mock a dependency", "test a CDS view", "test a RAP BO", "test double", "assertion", "test fixture", "test isolation", or "ABAP unit".
knot0-comSkillknot0-com/vibe-testing/SKILL.md
This skill should be used when the user asks to "test my specs", "validate my design docs", "find gaps in my architecture", "stress-test the spec", "vibe test", "pressure test the docs", or mentions spec validation before implementation begins.
Microsoft AzureSkillAzure/terraform-azurerm-avm-ptn-alz/.github/skills/avm-tf-testing/SKILL.md
Use for AVM Terraform validation, provider-mocked unit tests, real-Azure integration tests, E2E example tests, PowerShell hooks, OIDC, policy checks, and Avm.Authoring CI behavior.
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