React and Next.js performance guidance for writing, reviewing, and refactoring production UI code.

Review UI code for web interface guidelines, UX quality, accessibility, and interaction design best practices.

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

A comprehensive toolkit for enhancing GitHub Copilot with specialized agents, instructions, and workflows.

Collection of handy online tools for developers, with great UX.

An AI agent skill that provides design intelligence and UI/UX guidelines for building professional interfaces across multiple platforms.

Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, and security risks.

Build typed AI agents with Pydantic patterns

Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, MariaDB, MS SQL Server, PostgreSQL and SQLite/libSQL databases.

Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work.

Generate production-quality SVG+PNG technical diagrams from natural language. 7 styles, UML support, and AI/Agent workflow patterns.