MCP servers and skills: search, filter by where they run, and compare.
Requires a design-first pass before creative work such as new features, components or behavior changes.
SkillMITNo key
Reference for the Claude API and Anthropic SDK: model IDs, pricing, parameters, tool use, streaming and caching.
OfficialSkillApache-2.0Needs Anthropic API
Diagnosis loop for hard bugs and performance regressions when a user reports something broken or slow.
SkillMITNo key
Guides intentional UI visual design, covering aesthetic direction, typography and choices that avoid generic templates.
OfficialSkillApache-2.0No key
Guides use of the Hugging Face hf CLI to download and manage models, datasets, Spaces, buckets and repos.
OfficialSkillApache-2.0Needs Hugging Face Hub
Guide for building high-quality MCP servers in Python (FastMCP) or TypeScript that expose external APIs to LLMs.
OfficialSkillApache-2.0No key
React and Next.js performance guidelines for writing, reviewing and refactoring components and data fetching.
OfficialSkillMITNo key
Writes custom Semgrep rules that detect security vulnerabilities, bug patterns and code patterns.
SkillCC-BY-SA-4.0No key
Creates, edits and benchmarks Agent Skills, with evals and description tuning for better triggering.
OfficialSkillApache-2.0No key
Guidance for Supabase work: client libraries, auth, CLI and MCP use, schema migrations and reading logs.
OfficialSkillMITNeeds Supabase
Root-cause-first method to apply to any bug, test failure or unexpected behavior before proposing fixes.
SkillMITNo key
Test-first development for features and bug fixes using red-green-refactor and integration tests.
SkillMITNo key
Test-first workflow to use before writing implementation code for any feature or bug fix.
SkillMITNo key
Toolkit for multi-component claude.ai HTML artifacts built with modern frontend tooling.
OfficialSkillApache-2.0No key
Reviews UI code against Vercel's Web Interface Guidelines for accessibility and UX compliance.
OfficialSkillMITNo key
Playwright toolkit for testing local web apps: checks frontend behavior, captures screenshots and reads browser logs.
OfficialSkillApache-2.0No key
Who stands behind it
