Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
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akovalionSkillakovalion/paranoid-qa/skills/testing/SKILL.md
Universal testing framework (frontend + backend) — a meticulous run of any testing task with evidence discipline. Use when you need to test a feature/form/build/API/service, draft a test plan, run checks, perform exploratory or regression testing, or find defects.
Often used withbundle-dependency-prsupdate-library-template
manu14357Skillmanu14357/Zelaxy/.agents/skills/testing/SKILL.md
Write, review, and debug tests using Vitest. Use for: unit tests, API route tests, executor/serializer/tool tests, jsdom vs node environment selection, shared __test-utils__ patterns, and mandatory code-to-test sync with executed test runs.
Often used withbundle-dependency-prsupdate-library-template
tae0ySkilltae0y/python-project-template/.claude/skills.nouse/testing/SKILL.md
Testing patterns for behavior-driven tests. Use when writing tests or test factories.
Often used withbundle-dependency-prsupdate-library-template
darknecrocitiesSkilldarknecrocities/SkillBuilder/skills/testing/SKILL.md
Test-Driven Development (TDD) discipline, Vitest, Jest, Playwright E2E with accessible locators, MSW contract tests, and mutation testing principles.
Often used withbundle-dependency-prsupdate-library-template
henriquecanerSkillhenriquecaner/brain-agent/.agents/skills/testing/SKILL.md
Write, review, and maintain automated tests. Use when a user asks to test a feature, write specs, or improve coverage.
Often used withbundle-dependency-prsupdate-library-template
warpdotdevSkillwarpdotdev/warp/.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.
Steady4 mentions in 2 weeks
6 projects use a version of this
coreyhaines31Skillcoreyhaines31/marketingskills/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. 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.
Often used withfree-toolsco-marketingemails
iulianditaReads credentialsSkilliuliandita/skills/skills/testing/SKILL.md
Write unit, integration, E2E, load, and accessibility tests; debug fixtures, mocks, coverage, and flaky suites.
Often used withbundle-dependency-prsupdate-library-template
PedroMosqueraSkillPedroMosquera/squadai/.agents/skills/testing/SKILL.md
Test writing protocol with structured coverage analysis
Often used withbundle-dependency-prsupdate-library-template
sukirman1901Skillsukirman1901/frontend-expert/skills/testing/SKILL.md
Test user-facing UI with TDD, component tests, a11y checks, and critical-path coverage. Use when writing or fixing UI tests, verifying loading/error/empty states, or when the user mentions test/TDD/coverage/regresi — including natural language, not only /test-ui.
Often used withbundle-dependency-prsupdate-library-template
E4crypt3dSkillE4crypt3d/oh-my-qwen/skills/testing/SKILL.md
Comprehensive test creation using TDD principles. Use when writing tests, improving coverage, fixing failing tests, or setting up test infrastructure.
Often used withbundle-dependency-prsupdate-library-template
HyunjunJeonReads credentialsSkillHyunjunJeon/claude-workflow-mods/skills/testing/SKILL.md
How DAG nodes prove code changes through public interfaces - red before green for new behavior and bug fixes, preservation checks for refactors, and mocks at system boundaries - loaded through load_skills.
Often used withbundle-dependency-prsupdate-library-template
jscraikSkilljscraik/Agent-Skills/Skills/agent-ops/testing/SKILL.md
Validate and choose proportionate test proof for tests, CI, coverage, evals, and closeout evidence: map changed files to repo-native commands, place checks at commit, push, and pull-request gates, classify pass/fail/blocked ownership, and preserve trace/regression artifacts. Use when users ask what tests or gates to run, how to design coverage, why validation failed, or what proof supports a claim.
Often used withbundle-dependency-prsupdate-library-template
mae616Skillmae616/ai-template/.claude/skills/testing/SKILL.md
テストピラミッド・テスト設計・品質戦略を整理する判断軸。テストの粒度・スコープ・優先順位に迷ったときに使う。TDDの具体的な実装手順は developer-specialist と併用する。
Often used withbundle-dependency-prsupdate-library-template
e2bgatewaySkille2bgateway/e2bgateway/.agents/skills/testing/SKILL.md
Write tests for E2BGateway. Use when writing unit tests, integration tests, or E2E tests — covers conventions, layer selection, mocks, and race detection.
Often used withbundle-dependency-prsupdate-library-template
primo-devsSkillprimo-devs/public-skills/skills/testing/SKILL.md
Write tests for code. Use when: (1) user asks to write, add, or improve tests; (2) after implementing non-trivial features—propose which tests would add value before writing; (3) user asks to verify a bugfix with a regression test; (4) user wants to understand what tests a change needs.
Often used withbundle-dependency-prsupdate-library-template
bseneSkillbsene/skills/testing/SKILL.md
Design or review testing strategy, test portfolios, and test quality. Use for unit/integration/contract/E2E choices, flaky or brittle tests, mocks and test doubles, BDD review, legacy-code testing, production QA, and testing LLM or AI-generated systems. Also covers TCRDD / TCR (test && commit || revert, red-green-refactor, baby steps, commit on green, revert on failure, approval-gated TDD) and HTTP API smoke tests (smoke test, critical path test, CI gate, Hurl, .hurl files, curl smoke test).
Often used withbundle-dependency-prsupdate-library-template
shangyiySkillshangyiy/life-kit/skills/core/testing/SKILL.md
What makes a good test, whatever is under test, from choosing inputs and oracles to judging how adequate a suite is. Use to design, write, plan, or review any kind of test or test plan, including flaky tests, or on /testing.
Often used withbundle-dependency-prsupdate-library-template
VercelSkillvercel-labs/fast-link/.agents/skills/testing/SKILL.md
Write, change, or review Fast Link tests, choose between specs, browser tests, and real app fixtures, or audit and clean up test suites. Use when assessing test value, duplication, reliability, or coverage in this repository.
Often used withbundle-dependency-prsupdate-library-template
itsnex1sReads credentialsSkillitsnex1s/awesome-claude-skills/skills/testing/SKILL.md
Testing with Vitest, Jest, and Playwright. Use for unit tests, integration tests, E2E tests, and coverage reports.
Often used withbundle-dependency-prsupdate-library-template
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.
Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.
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