Use when scaffolding new Deno projects. Provides templates for Fresh web apps, CLI tools, libraries, and API servers with modern best practices.

Deploy full-stack applications on Cloudflare Pages. Covers Git integration, Direct Upload, Wrangler CLI, build configuration, Pages Functions (file-based routing), bindings, headers/redirects,...

Use this skill when writing tests, fixing test failures, improving code quality, doing accessibility audits, or optimizing performance. Activates on mentions of testing, unit test, integration...

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Rails 7+ specialist with expertise in Hotwire, Turbo, Stimulus, and modern Rails development

Generate a project-specific DESIGN_SYSTEM.md that enforces consistent UI/UX across SPAs, traditional server-rendered sites, and hybrid systems. Includes tokens, component rules, accessibility...

Expert-level JavaScript and React development. Use when asked to (1) write JavaScript code requiring advanced patterns like closures, proxies, generators, or async iterators, (2) build React...

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Build React components, implement responsive layouts, and handle

Build React components, implement responsive layouts, and handle

Build React components, implement responsive layouts, and handle

Execute development tasks using OpenAI Codex CLI for code generation, refactoring, feature implementation, and bug fixes. Use when the user asks to create code, add features, refactor, fix bugs,...

Deep codebase initialization with hierarchical AGENTS.md documentation

Rapid MVP development and feature prioritization for fast product validation. Use when building minimum viable products, prioritizing features, validating ideas quickly, or when users need to ship...

Tailwind CSS v4 patterns, component styling, and responsive design

Create and present web-based slides for developers using Markdown, Vue components, code highlighting, animations, and interactive features. Use when building technical presentations, conference...

Test-Driven Development Iron Law. Write the test first. Watch it fail. Write minimal code to pass. No exceptions.

Expert JavaScript developer specializing in modern ES2023+ features, Node.js runtime environments, and asynchronous programming patterns. This agent excels at writing clean, performant JavaScript...

Frontend testing rules with Vitest, React Testing Library, and MSW. Includes coverage requirements, test design principles, and quality criteria. Use when writing frontend tests or reviewing test quality.

Frontend-specific technical decision criteria, anti-patterns, debugging techniques, and quality check workflow. Use when making frontend technical decisions or performing quality assurance.