Browse Secure Claude Skills
Search verified agent skills and review security grades before installing · full A–Z index
- Probe Deep NestingBenchmark skill for testing deeply nested resource access and nested skill discovery. Use when asked to probe nesting behavior.Votes: 0GitHub stars: 5
- Probe Bulk FilesBenchmark skill with an unusually large and varied set of bundled files, for testing how platforms enumerate them at activation. Use when asked to probe bundled file enumeration.Votes: 0GitHub stars: 5
- Pull IdentityPull a Substack newsletter's STATED identity — name, tagline, about page, recent subjects — the high-signal context the writer already wrote about themselves. Step 2 of the Context Kit, loaded BEFORE the bulk corpus (progressive loading). Use for "pull my newsletter's about page", "get the stated identity", or as part of onboarding.Votes: 0GitHub stars: 2
- Extract CorpusExtract a writer's full published corpus from a Substack newsletter (vanilla or custom-domain) given only its URL — the complete archive at full fidelity, cleaned, segmented, and fidelity-tagged, with a coverage manifest. This is step 3 (Ingest) of the Context Kit. Use whenever someone wants to build AI context from a Substack newsletter, "load my newsletter," "pull my archive," or onboard a writer's body of work. v1 supports free Substack only; paid posts return previews.Votes: 0GitHub stars: 2
- Webapp TestingUse when Comprehensive Web Application Testing strategy. Test Pyramid, Vitest/Jest for unit logic, React Testing Library for component integrity, MSW (Mock Service Worker) for API layer simulation, and visual regression. Use when setting up testing environments or defining global test strategies across a web stack.Votes: 0GitHub stars: 5
- Vulnerability ScannerUse when Security vulnerability analysis mastery. OWASP Top 10 (2025), injection attacks (SQL, XSS, SSRF, command), authentication/authorization flaws, dependency vulnerabilities, secret scanning, CORS misconfiguration, supply chain attacks, and security headers. Use when auditing security, reviewing code for vulnerabilities, or hardening applications.Votes: 0GitHub stars: 5
- Testing PatternsUse when Testing mastery across stacks. Unit testing with Jest/Vitest/pytest, integration testing, E2E with Playwright, mocking strategies, test architecture (AAA, Given-When-Then), code coverage, snapshot testing, API testing, component testing with Testing Library, and TDD workflow. Use when writing tests, designing test architecture, or improving test coverage.Votes: 0GitHub stars: 5
- Seo FundamentalsUse when Search Engine Optimization (SEO) mastery. Metadata implementation, Open Graph (OG) social card rendering, semantic HTML5 structuring, canonicalization, Core Web Vitals performance mapping, Sitemap/Robots configurations, structured data (JSON-LD), and Next.js SSR SEO implementations. Use when auditing site visibility or building consumer-facing web architectures.Votes: 0GitHub stars: 5
- Review AnimationsUse when Reviews animation and motion code against a high craft bar derived from Emil Kowalski's design engineering philosophy. Default to flagging; approval is earned.Votes: 0GitHub stars: 5
- Performance ProfilingUse when Performance profiling mastery. Core Web Vitals (LCP, CLS, INP), Lighthouse auditing, JavaScript profiling, React rendering optimization, bundle analysis, memory leak detection, database query profiling (EXPLAIN ANALYZE), load testing, and performance budgets. Use when optimizing performance, debugging slow pages, or establishing performance standards.Votes: 0GitHub stars: 5
- Nextjs React ExpertUse when Next.js 15+ App Router mastery. Server Components, Server Actions, PPR, caching, metadata, middleware, parallel/intercepting routes. Use when building Next.js apps or optimizing Next.js performance.Votes: 0GitHub stars: 5
- Mobile DesignUse when Mobile-first design for iOS, Android, Foldables, React Native, Flutter. Touch interaction, haptics, 120Hz performance, on-device AI, spatial UI, Reanimated 3. Use when building mobile UI, animations, or cross-platform apps.Votes: 0GitHub stars: 5
- Lint And ValidateUse when Linting and validation principles for code quality enforcement.Votes: 0GitHub stars: 5
- I18n LocalizationUse when Internationalization (i18n) and localization mastery. Abstracting hardcoded strings, managing JSON/YAML translation dictionaries, bidirectional routing (RTL support for Arabic/Hebrew), Pluralization algorithms, date/currency formatting, and SSR locale detection in Next.js/React. Use when preparing an application for global multilingual scaling.Votes: 0GitHub stars: 5
- Geo FundamentalsUse when Generative Engine Optimization (GEO) mastery. Structuring content for LLM ingestion. Adapting SEO for AI interfaces (ChatGPT, Claude, Perplexity), optimizing markdown semantic hierarchies, citation structuring, minimizing boilerplate, reducing HTML DOM depth, and API-first content delivery. Use when making information discoverable not just to Google, but directly to AI indexing agents.Votes: 0GitHub stars: 5
- Frontend DesignUse when Design engineering principles for React/Next.js. Relative color syntax (OKLCH), spatial grid math, fluid container queries, and contrast validation.Votes: 0GitHub stars: 5
- Database DesignUse when Database design mastery. Schema design with normalization, denormalization strategies, indexing, migration pipelines, ORM selection (Prisma/Drizzle/SQLAlchemy/EF Core), connection pooling, soft deletes, audit trails, multi-tenancy, and serverless database patterns. Use when designing schemas, choosing databases, planning migrations, or architecting data layers.Votes: 0GitHub stars: 5
- App BuilderUse when Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.Votes: 0GitHub stars: 5
- Api PatternsUse when API design mastery. REST, GraphQL, tRPC, and gRPC selection. Request/response design, pagination (cursor/offset), filtering, versioning, rate limiting, error formats (RFC 9457), authentication (JWT/OAuth2/API keys), idempotency, file uploads, webhooks, and OpenAPI documentation. Use when designing APIs, choosing protocols, or implementing API standards.Votes: 0GitHub stars: 5
- Webapp TestingUse when writing, maintaining, executing, and auditing webapp testing test suites, assertions, mocks, and verification gates.Votes: 0GitHub stars: 5