Browse and install thousands of AI Agent skills in the Killer-Skills directory. Supports Claude Code, Windsurf, Cursor, and more.
fastify-typescript is an AI Agent skill that provides expert-level guidance for developing type-safe, high-performance APIs using the Fastify web framework and TypeScript. It enforces strict coding principles like avoiding the `any` type and mandates JSDoc for documentation.
tailwind-design-system is an AI agent skill for building design systems with Tailwind CSS v4. It provides capabilities for CSS-first configuration, managing design tokens, creating component variants, and implementing responsive and accessible UI patterns for component libraries.
Blueprint-document-reference is an AI Agent skill designed for authoring and modifying blueprint documents. It provides structured guidance for creating overview pages, adding architectural diagrams, technical considerations, and integrating documentation links from Adobe Experience League.
extracting-pdf-text is an AI Agent skill that provides tools and guidance for converting PDF content into text consumable by Large Language Models. It offers a quick decision guide and specific Python scripts for different PDF types, including simple text, tables, and scanned documents.
skill-creator is an AI agent skill that provides structured guidance for creating modular skill packages. These packages extend Claude's capabilities by providing specialized domain knowledge, multi-step workflows, and procedural expertise that the base model cannot possess on its own.
Sharing Skills is a workflow that allows developers to contribute skills from their local branch to the upstream repository, following guidelines for sharing and documentation
nuqs is a library for type-safe URL query state management in Next.js applications. It provides a set of best practices and rules for implementing, configuring, and optimizing search parameters, including integration with Server Components and parser configuration.
three-best-practices is an AI agent skill containing a comprehensive performance optimization guide for Three.js. It provides over 100 rules across 17 categories, based on official guidelines from the Three.js `llms` branch maintained by mrdoob.
natalia-rules is an AI Agent skill that enforces strict mirroring of Excel data into PDF documents. It operates under non-negotiable rules to prevent recalculation, preserve exact sequence, and ensure all alternates are shown without any data filtering.