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.
32,113 skills from 1,400 repositories · updated 6 minutes ago
2,398 skills
- docs-guardamElnagdy/guard-skillsReview generated or changed documentation before it ships — READMEs, API references, docstrings, PHPDoc/JSDoc, changelogs, tutorials, and doc sites. Best used reactively after an agent writes or edits docs, after code changes documented behavior, or before publishing docs. Use when the user says 'review the docs', 'is this documentation accurate', 'update the docs', 'write a README', 'document this API', 'add a docstring', or 'add a changelog entry'. Core job: verify every referenced function, flag, endpoint, config key, and code sample against the source; catch docs-vs-code drift; strip filler and unverifiable claims. DO NOT USE for production code review (use clean-code-guard), test review (use test-guard), marketing copy or blog posts, prose style editing of non-technical writing, or documentation site theming.TestingNo warnings★ 1.3K↓ —
- startup-positioningferdinandobons/startup-skillMarket positioning strategy using the April Dunford framework, enriched with JTBD discovery, Moore positioning statement, and Neumeier's Onliness Test. Produces a complete positioning document, positioning statement, competitive alternatives map, and market category analysis. Use when the user wants to define or refine their market positioning, find their unique position, differentiate from competitors, craft a positioning statement, choose a market category, or figure out "how should we position this product." Triggers for "positioning", "how to position", "market position", "differentiation strategy", "positioning statement", "competitive positioning", "category strategy", "where do we fit in the market", "how are we different", "unique value proposition", or any request to define, sharpen, or rethink positioning. Works standalone — no prior startup-design or startup-competitors session needed, but leverages their output if available.TestingNo warnings★ 1.2K↓ —
- feature-flagsBagelHole/DevOps-Security-Agent-SkillsImplement feature flags for progressive feature rollout using LaunchDarkly, Unleash, or custom solutions. Control feature visibility, perform A/B testing, and enable trunk-based development. Use when implementing gradual rollouts, feature toggles, or experimentation platforms.TestingNo warnings★ 1.2K↓ —
- penetration-testingBagelHole/DevOps-Security-Agent-SkillsPerform basic penetration testing and security assessments. Use reconnaissance, vulnerability discovery, and exploitation techniques. Use when validating security controls or assessing system security.TestingNo warnings★ 1.2K↓ —
- business-continuityBagelHole/DevOps-Security-Agent-SkillsDevelop business continuity plans and impact analysis. Implement BCP testing and communication procedures. Use when building organizational resilience.TestingNo warnings★ 1.2K↓ —
- cross-video-qaJimLiu/baocut用户问「我哪一期讲过 X」「这几部视频里谁说过 Y」「X 在我的视频里是怎么讲的」「有哪些讲 X 的视频」这类要在多部视频里找答案的问题时用：按意思检索、按视频去重、按当前版本重新定位，只凭找回来的原话回答，每条论断注明视频与时间，覆盖不全时说明。不用于总结或改写一部视频（那是总结、博客），也不改视频。TestingNo warnings★ 1.4K↓ —
- product-developmentrshankras/claude-code-apple-skillsEnd-to-end product development for iOS/macOS apps. Covers market research, competitive analysis, PRD generation, architecture specs, UX design, implementation guides, testing, and App Store release. Use for product planning, validation, or generating specification documents.TestingNo warnings★ 827↓ —
- testingrshankras/claude-code-apple-skillsTDD and testing skills for iOS/macOS apps. Covers characterization tests, TDD workflows, test contracts, snapshot tests, test infrastructure, and deterministic quality gates (fitness functions, coverage ratchet, mutation testing). Use for test-driven development, adding tests to existing code, or building test infrastructure.TestingNo warnings★ 827↓ —
- generatorsrshankras/claude-code-apple-skillsCode generator skills that produce production-ready Swift code for common app components. Use when user wants to add logging, analytics, onboarding, review prompts, networking, authentication, paywalls, settings, persistence, error monitoring, CI/CD pipelines, localization, push notifications, deep linking, testing, accessibility, widgets, feature flags, app icons, image caching, pagination, HTTP caching, share cards, social export, subscription lifecycle, referral systems, watermarks, streak tracking, milestone celebrations, what's new screens, lapsed user re-engagement, usage insights, variable rewards, consent flows, account deletion, permission priming, force updates, state restoration, debug menus, offline queues, feedback forms, announcement banners, quick win sessions, Spotlight indexing, App Clips, screenshot automation, background processing, app extensions, data export, or SwiftUI preview sample data and variant matrices.TestingNo warnings★ 827↓ —
- run-devicershankras/claude-code-apple-skillsBuild, install, and launch an iOS app on a physical iPhone or iPad entirely from the command line (no Xcode GUI), using xcodebuild + devicectl. Use when the user wants to run, test, or screenshot their app on a real device without opening Xcode.TestingNo warnings★ 827↓ —
- tdd-bug-fixrshankras/claude-code-apple-skillsFix bugs using red-green-refactor — reproduce the bug as a failing test first, then fix it. Use when fixing bugs to ensure they never regress.TestingNo warnings★ 827↓ —
- tdd-featurershankras/claude-code-apple-skillsRed-green-refactor scaffold for building new features with TDD. Write failing tests first, then implement to pass. Use when building new features test-first.TestingNo warnings★ 827↓ —
- beta-testingrshankras/claude-code-apple-skillsBeta testing strategy for iOS/macOS apps. Covers TestFlight program setup, beta tester recruitment, feedback collection methodology, user interviews, signal-vs-noise interpretation, and go/no-go launch readiness decisions. Use when planning a beta, setting up TestFlight, collecting user feedback, or deciding if ready to launch.TestingNo warnings★ 827↓ —
- test-contractrshankras/claude-code-apple-skillsGenerate protocol/interface test suites that any implementation must pass. Define the contract once, test every implementation. Use when designing protocols or swapping implementations.TestingNo warnings★ 827↓ —
- migration-patternsrshankras/claude-code-apple-skillsMigration guides for CoreData to SwiftData, UIKit to SwiftUI, ObservableObject to @Observable, XCTest to Swift Testing, Objective-C to Swift, and StoreKit 1 to StoreKit 2. Use when migrating between Apple framework generations.TestingNo warnings★ 827↓ —
- feature-flagsrshankras/claude-code-apple-skillsGenerate feature flag infrastructure with local defaults, remote configuration, SwiftUI integration, and debug menu. Use when adding feature flags or A/B testing to iOS/macOS apps.TestingNo warnings★ 827↓ —
- mutation-testingrshankras/claude-code-apple-skillsEXPERIMENTAL — mutation testing with muter to measure whether tests actually assert anything: mutants that survive reveal assertion-free coverage. Advisory report only, never a merge gate. Use on engine/logic targets when coverage numbers look good but bugs still slip through.TestingNo warnings★ 827↓ —
- test-generatorrshankras/claude-code-apple-skillsGenerate test templates for unit tests, integration tests, and UI tests using Swift Testing and XCTest. Use when adding tests to iOS/macOS apps.TestingNo warnings★ 827↓ —
- fitness-functionsrshankras/claude-code-apple-skillsWrite architecture fitness functions — deterministic tests that enforce a project's hard rules (module boundaries, offline guarantees, content contracts) from inside its own test target. Use when a constraint lives only in prose (CLAUDE.md, code review) and should become un-arguable.TestingNo warnings★ 827↓ —
- test-data-factoryrshankras/claude-code-apple-skillsGenerate test fixture factories for your models. Builder pattern and static factories for zero-boilerplate test data. Use when tests need sample data setup.TestingNo warnings★ 827↓ —
- tdd-refactor-guardrshankras/claude-code-apple-skillsPre-refactor safety checklist. Verifies test coverage exists before AI modifies existing code. Use before asking AI to refactor anything.TestingNo warnings★ 827↓ —
- tipkit-generatorrshankras/claude-code-apple-skillsGenerate TipKit infrastructure with inline/popover tips, rules, display frequency, and testing utilities. Use when adding contextual tips or feature discovery to an iOS/macOS app.TestingNo warnings★ 827↓ —
- snapshot-test-setuprshankras/claude-code-apple-skillsSet up SwiftUI visual regression testing with swift-snapshot-testing. Generates snapshot test boilerplate and CI configuration. Use for UI regression prevention.TestingNo warnings★ 827↓ —
- localization-strategyrshankras/claude-code-apple-skillsLocalization and internationalization strategy for iOS/macOS apps. Covers market prioritization, language tier recommendations, minimum viable localization levels, translation workflows, cultural adaptation, localized ASO, and testing. Use when planning localization, expanding to new markets, deciding which languages to support, or planning translation workflow.TestingNo warnings★ 827↓ —