Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
AnthropicSkillanthropics/claude-plugins-community/testdino/skills/testdino-manual-tests/SKILL.md
Use when the user wants to create, update, or browse manual QA test cases and suites in TestDino — not execution runs. Covers list_manual_test_suites, list_manual_test_cases, get_manual_test_case, create_manual_test_case, update_manual_test_case, create_manual_test_suite.
kevintsengtwSkillkevintsengtw/dotnet-testing-agent-skills/skills/dotnet-testing-advanced-aspnet-integration-testing/SKILL.md
ASP.NET Core 整合測試的專門技能。當需要測試 Web API 端點、HTTP 請求/回應、中介軟體、依賴注入時使用。涵蓋 WebApplicationFactory、TestServer、HttpClient 測試、記憶體資料庫配置等。 Make sure to use this skill whenever the user mentions ASP.NET Core integration testing, WebApplicationFactory, TestServer, HTTP endpoint testing, or middleware testing, even if they don't explicitly ask for integration testing guidance. Keywords: integration testing, 整合測試, web api testing, WebApplicationFactory, TestServer, HttpClient testing, controller testing, endpoint testing, 端點測試, RESTful API testing, Microsoft.AspNetCore.Mvc.Testing, CreateClient, ConfigureWebHost, AwesomeAssertions.Web, Be200Ok, Be404NotFound, middleware testing, 中介軟體測試, dependency injection testing
PostHogSkillPostHog/posthog/.agents/skills/maintaining-python-tests/SKILL.md
Maintains existing pytest and Django test suites without weakening correctness. Use when asked to reduce Python test runtime or CI work, investigate slow pytest families, remove stale migration tests, consolidate repeated setup, improve Python test ownership, or measure whether a test optimization worked after merge. Ranks work by measured cost, applies the writing-tests value gate to existing coverage, preserves distinct behavior cases, validates isolation after shared-fixture changes, and separates testcase work from pytest-suite wall time. For an intermittent failure, use fixing-flaky-tests instead.
fdiblenSkillfdiblen/rseng-agent-skills/skills/rseng-testing/SKILL.md
Covers how to test research software: choosing test types and levels (unit, integration, system, regression, property-based, golden-master), test frameworks and coverage, TDD, validating analysis code against reference cases, and taming CI testing matrices across compilers, platforms and dependency versions. Use when the user asks how to write tests, set up pytest/testthat/JUnit, decide what to test, raise or interpret code coverage, do test-driven development, or when a CI matrix is exploding. Also use PROACTIVELY when new result-bearing code is written without tests, and before declaring any deliverable complete - the shipped entry point must be run and verified working, not only the test suite. For CI pipeline setup see rseng-ci-cd; for review-time test scrutiny see rseng-code-review.
ncklrsSkillncklrs/claude-chrome-user-testing/skills/user-testing/SKILL.md
Comprehensive persona-based user testing skill for web applications. Simulates how real users from different demographics interact with interfaces, including realistic timing, behavioral patterns, and frustration triggers.
omnigent-aiSkillomnigent-ai/omnigent/.claude/skills/run-load-test/SKILL.md
Run the Omnigent load test and produce a results file explaining the latencies. Load when the user wants to load-test / stress-test / benchmark Omnigent under concurrency ("load test omnigent", "stress test the server", "how many hosts/sessions/turns can it handle", "load test real agent turns / conversations", "run a load test"). The test makes each simulated user a real omnigent host that creates host-bound sessions and drives real multi-turn conversations with a mocked LLM; it boots its own local stack (dev/loadtest/run.py). Gather inputs, run it, then read the generated summary.md and explain the latency distribution (avg/median/p95/p99, throughput, failures). NOT for single-request latency micro-benchmarks (that is dev/benchmarks/).
applypackSkillapplypack/applypack/.claude/skills/testing-gate/SKILL.md
Required verification per change type for ApplyPack (pure module → unit test, fetcher → smoke run, schema → hand-written migration, dashboard → rebuild + screenshot). Read before implementing any feature and before every commit.
jerseycheeseSkilljerseycheese/agent-skills/skills/test-reaper/SKILL.md
Finds and removes dead or trivial tests - duplicates, tests that only assert a mock was called, render checks that prove nothing, negative reference/source scans that only prove retired text is absent, and suites whose name promises behavior they never observe. Distinguishes a test that tests nothing from one that tests the wrong thing, because those need opposite fixes. Trigger on: "test reaper", "reap tests", "remove trivial tests", "dead tests", "useless tests", "our tests don't test anything", "prune the test suite", "test audit", "which tests are worthless", "tests that always pass". For tests that are FAILING, use test-fix. For removing tests because their source is dead, use dead-code-cleanup.
javiarmestoSkilljaviarmesto/ALDC-AL-Development-Collection/.claude/skills/skill-testing/SKILL.md
AL test development patterns for Business Central. Use when creating test codeunits, writing Given/When/Then test procedures, using Library Assert, configuring test projects, or implementing TDD workflows.
javiarmestoSkilljaviarmesto/ALDC-AL-Development-Collection/skills/skill-testing/SKILL.md
AL test development patterns for Business Central. Use when creating test codeunits, writing Given/When/Then test procedures, using Library Assert, configuring test projects, or implementing TDD workflows.
ElasticSkillelastic/kibana/.agents/skills/scout-ui-testing/SKILL.md
Use when creating, updating, debugging, or reviewing Scout UI tests in Kibana (Playwright + Scout fixtures), including page objects, browser authentication, parallel UI tests (spaceTest/scoutSpace), a11y checks, and flake control.
mbwsimsSkillmbwsims/claude-universe/skills/test-review/SKILL.md
This skill should be used when the user asks to "review my tests", "are these tests good", "check my test quality", "audit these tests", "grade my tests", "test quality check", "are these tests testing the right things", "test coverage quality", mentions "/test-review", or wants to evaluate the quality of existing test files.
TheBeardedBearSASSkillTheBeardedBearSAS/claude-craft/.claude/skills/testing-react/SKILL.md
Stratégie de Tests React 19 + Compiler 1.0. Use when writing tests, reviewing test coverage, or setting up testing.
theexperiencecompanySkilltheexperiencecompany/gaia/.agents/skills/testing-strategies/SKILL.md
Design comprehensive testing strategies for software quality assurance. Use when planning test coverage, implementing test pyramids, or setting up testing infrastructure. Handles unit testing, integration testing, E2E testing, TDD, and testing best practices.
alfredangSkillalfredang/skills/app-testing/SKILL.md
Test app functionality and mobile responsiveness on localhost or remote live sites using Playwright MCP. Navigates pages, clicks buttons, fills forms, checks content, validates UI behavior, and tests mobile-friendliness across device viewports. Use when running "test app", "test my site", "test the app", "test mobile", or any functional/responsive testing task.
anivarSkillanivar/zod-testing/SKILL.md
Testing patterns for Zod schemas using Jest and Vitest. Covers schema correctness testing, mock data generation, error assertion patterns, integration testing with API handlers and forms, snapshot testing with z.toJSONSchema(), and property-based testing. Baseline: zod ^4.0.0. Triggers on: test files for Zod schemas, zod-schema-faker imports, mentions of "test schema", "schema test", "zod mock", "zod test", or schema testing patterns.
ffsshhttiikkSkillffsshhttiikk/opencode-agents-skills/pen-testing/SKILL.md
Design patterns and architectural approaches for Pen Testing
MaxymizeSkillMaxymize/maxym-ai-ads/skills/ads-testing/SKILL.md
A/B Testing Plan Generator. Creates structured testing roadmaps with prioritized test sequences, duration calculators, sample size requirements, statistical significance thresholds, hypothesis templates, and 90-day testing calendars for Meta, Google, and LinkedIn.
rcdelfinSkillrcdelfin/agentkit/skills/software-development/pest-testing/SKILL.md
Use this skill for Pest PHP testing in Laravel projects only. Trigger whenever any test is being written, edited, fixed, or refactored — including fixing tests that broke after a code change, adding assertions, converting PHPUnit to Pest, adding datasets, and TDD workflows. Always activate when the user asks how to write something in Pest, mentions test files or directories (tests/Feature, tests/Unit) or architecture tests. Covers: it()/expect() syntax, datasets, mocking, browser testing, arch(), Livewire component tests, RefreshDatabase, and all Pest 4 features. Do not use for editing factories, seeders, migrations, controllers, models, or non-test PHP code.
ronmkrSkillronmkr/PromptBook/skills/technical/cpp-testing/SKILL.md
Use only when writing/updating/fixing C++ tests, configuring GoogleTest/CTest, diagnosing failing or flaky tests, or adding coverage/sanitizers.
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.
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.
Open a skill to see its discussion. Reports from people and their agents are coming.
