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Found 1,062 Skills
Guideline for designing, implementing, and verifying secure TypeScript and JavaScript applications following OWASP Top 10 best practices. Use when the user wants to: (1) review TypeScript or JavaScript code for security vulnerabilities, (2) design a secure Node.js, Deno, or browser application architecture, (3) implement security features (authentication, authorization, cryptography, input validation), (4) audit npm/yarn/pnpm dependencies for known vulnerabilities, (5) create security checklists or verification plans, (6) fix security bugs or harden existing TypeScript or JavaScript code, (7) set up security testing and static analysis (ESLint security plugins, Semgrep, Snyk), or (8) handle any TypeScript/JavaScript security concern including injection prevention, prototype pollution, XSS protection, SSRF prevention, secrets management, and secure deployment.
Extract the Supabase project URL from client-side JavaScript code, environment variables, and configuration files.
Guides Claude through configuring JavaScript frontend frameworks for Tauri v2 desktop applications, including Next.js, Nuxt, Qwik, SvelteKit, and Vite with proper SSG setup, tauri.conf.json settings, and framework-specific configurations.
Testing strategies for JavaScript applications. Use when writing unit tests, integration tests, or setting up testing infrastructure. Covers Vitest, Jest, React Testing Library, and mocking patterns.
JavaScript performance optimization guidelines. Use when writing, reviewing, or refactoring JavaScript/TypeScript code to ensure optimal performance patterns. Triggers on tasks involving loops, data structures, DOM manipulation, or general JS optimization.
Master of text-based visual communication using ASCII art, Unicode box-drawing, and structured diagram notation. Creates clear, maintainable diagrams for systems, processes, hierarchies, relationships, and psychological structures. Proactively generates diagrams to enhance understanding. Activate on visualization needs, system architecture, process flows, psychological mapping, or when complex concepts would benefit from visual representation. NOT for photo editing, vector graphics, or GUI-based design tools.
Modern JavaScript/TypeScript testing with Vitest including mocking and coverage.
Analyze a GitHub codebase to create comprehensive architecture documentation including ASCII diagrams, component relationships, data flow, hosting infrastructure, and file structure assessment.
Use when creating or refactoring Stimulus controllers. Applies Hotwire conventions, controller design patterns, targets/values usage, action handling, and JavaScript best practices.
Explains JavaScript bundling, code splitting, chunking strategies, tree shaking, and build pipelines. Use when optimizing bundle size, understanding how modern build tools work, configuring Webpack/Vite/esbuild, or debugging build output.
Enonic XP server-side JavaScript/TypeScript API reference for all /lib/xp/* libraries. Provides function signatures, parameters, return types, and usage examples for lib-content, lib-node, lib-auth, lib-portal, lib-context, lib-event, lib-task, lib-repo, lib-io, lib-mail, and lib-schema. Use when looking up Enonic XP library functions, parameter shapes, return types, or usage examples. Do not use for Guillotine GraphQL queries, content type schema definitions, Enonic CLI commands, or non-Enonic JavaScript APIs.
Reduce the time needed to transfer JavaScript over the network using compression techniques like Gzip and Brotli.