Agent skills you can check before you install
Public SKILL.md skills from GitHub repositories with 50+ stars and from the vendors themselves, scanned and scored. Install any of them with one command in Claude Code, Cursor, Codex, GitHub Copilot or Gemini CLI.
45,604 skills from 2,205 repositories · updated 9 hours ago
3,223 skills
- bun-runtimemturac/everything-openai-codexBun as runtime, package manager, bundler, and test runner. When to choose Bun vs Node, migration notes, and Vercel support.TestingNo warnings★ 83↓ —Also in 1 other repo
- skill-builderexistential-birds/beagleCreate Agent Skills with best practices, structure, validation, and testing. Use when designing or refining skills, prompts, references, or supporting files.TestingNo warnings★ 84↓ —
- prompt-improverexistential-birds/beagleOptimize prompts for code-related tasks following prompt-engineering best practices. Use when refining prompts for implementation, debugging, refactoring, code review, or testing.TestingNo warnings★ 84↓ —
- vitest-testingexistential-birds/beagleVitest testing framework patterns and best practices. Use when writing unit tests, integration tests, configuring vitest.config, mocking with vi.mock/vi.fn, using snapshots, or setting up test coverage. Triggers on describe, it, expect, vi.mock, vi.fn, beforeEach, afterEach, vitest.TestingNo warnings★ 84↓ —
- prfaq-beagleexistential-birds/beagleUse when the user wants to pressure-test a product, internal-tool, or OSS concept against Amazon's Working Backwards PRFAQ gauntlet before committing to a spec. Triggers on: "work backwards", "write a PRFAQ", "press release first", "is this idea worth building", "pressure-test this concept", "filter this before brainstorm", "is this a real product". Also catches solution-first pitches ("I want to build X that does Y") and technology-first pitches ("use AI to...") that need customer-first filtering. Produces a binary pass/fail verdict, not a polished doc. Hardcore coaching — direct, skeptical, concrete. On pass, hands off to brainstorm-beagle with a concept brief. Does NOT write code, plan implementation, scaffold projects, or draft specs.TestingNo warnings★ 84↓ —
- gen-test-planexistential-birds/beagleAnalyze repo, detect stack, trace changes to user-facing entry points, generate E2E YAML test planTestingNo warnings★ 84↓ —
- run-test-planexistential-birds/beagleExecute YAML test plan, stop on first failure, output rich debug promptTestingNo warnings★ 84↓ —
- pydantic-ai-testingexistential-birds/beagleTest PydanticAI agents using TestModel, FunctionModel, VCR cassettes, and inline snapshots. Use when writing unit tests, mocking LLM responses, or recording API interactions.TestingNo warnings★ 84↓ —
- rust-best-practicesexistential-birds/beagleDevelopment guidance for writing idiomatic Rust. Use when: (1) writing new Rust functions or modules, (2) choosing between borrowing, cloning, or ownership patterns, (3) implementing error handling with Result types, (4) optimizing Rust code for performance, (5) configuring clippy and linting for a project, (6) deciding between static and dynamic dispatch, (7) writing documentation or doc tests.TestingNo warnings★ 84↓ —
- go-testing-code-reviewexistential-birds/beagleReviews Go test code for proper table-driven tests, assertions, and coverage patterns. Use when reviewing *_test.go files.TestingNo warnings★ 84↓ —
- pytest-code-reviewexistential-birds/beagleReviews pytest test code for async patterns, fixtures, parametrize, and mocking. Use when reviewing test_*.py files, checking async test functions, fixture usage, or mock patterns.TestingNo warnings★ 84↓ —
- llm-artifacts-detectionexistential-birds/beagleDetects common LLM coding agent artifacts in codebases. Identifies test quality issues, dead code, over-abstraction, and verbose LLM style patterns. Use when cleaning up AI-generated code or reviewing for agent-introduced cruft.TestingNo warnings★ 84↓ —
- swift-testing-code-reviewexistential-birds/beagleReviews Swift Testing code for proper use ofTestingNo warnings★ 84↓ —
- rust-testing-code-reviewexistential-birds/beagleReviews Rust test code for unit test patterns, integration test structure, async testing, mocking approaches, and property-based testing. Covers Rust 2024 edition changes including async fn in traits for mocks,TestingNo warnings★ 84↓ —
- build-to-learnTasihi89/build-to-learnA Claude Code skill where learning is the goal and building is the test — AI writes the code, you build the mental model.TestingNo warnings★ 83↓ —
- browser-qamturac/everything-openai-codexUse this skill to automate visual testing and UI interaction verification using browser automation after deploying features.TestingNo warnings★ 83↓ —
- cpp-testingmturac/everything-openai-codexUse only when writing/updating/fixing C++ tests, configuring GoogleTest/CTest, diagnosing failing or flaky tests, or adding coverage/sanitizers.TestingNo warnings★ 83↓ —
- e2e-testingmturac/everything-openai-codexPlaywright E2E testing patterns, Page Object Model, configuration, CI/CD integration, artifact management, and flaky test strategies.TestingNo warnings★ 83↓ —
- laravel-tddmturac/everything-openai-codexTest-driven development for Laravel with PHPUnit and Pest, factories, database testing, fakes, and coverage targets.TestingNo warnings★ 83↓ —
- quarkus-tddmturac/everything-openai-codexTest-driven development for Quarkus 3.x LTS using JUnit 5, Mockito, REST Assured, Camel testing, and JaCoCo. Use when adding features, fixing bugs, or refactoring event-driven services.TestingNo warnings★ 83↓ —
- csharp-testingmturac/everything-openai-codexC# and .NET testing patterns with xUnit, FluentAssertions, mocking, integration tests, and test organization best practices.TestingNo warnings★ 83↓ —
- fsharp-testingmturac/everything-openai-codexF# testing patterns with xUnit, FsUnit, Unquote, FsCheck property-based testing, integration tests, and test organization best practices.TestingNo warnings★ 83↓ —
- kotlin-testingmturac/everything-openai-codexKotlin testing patterns with Kotest, MockK, coroutine testing, property-based testing, and Kover coverage. Follows TDD methodology with idiomatic Kotlin practices.TestingNo warnings★ 83↓ —
- tdd-workflowmturac/everything-openai-codexUse this skill when writing new features, fixing bugs, or refactoring code. Enforces test-driven development with 80%+ coverage including unit, integration, and E2E tests.TestingNo warnings★ 83↓ —