MCP servers and skills: search, filter by where they run, and compare.
Persistent memory for agents as a local knowledge graph of entities, relations and observations.
OfficialNode.jsMIT AND Apache-2.0No key
Test-first development for features and bug fixes using red-green-refactor and integration tests.
SkillMITNo key
Generative art with p5.js using seeded randomness, flow fields, particle systems and adjustable parameters.
OfficialSkillApache-2.0No key
Makes static visual art and posters as PNG or PDF files, guided by a written design philosophy.
OfficialSkillApache-2.0No key
Creates and edits Excalidraw diagrams on a live canvas, from Mermaid or element-by-element.
Node.jsMITNo key
Creates animated GIFs sized for Slack, with constraints and validation utilities.
OfficialSkillApache-2.0No key
Applies Anthropic's official brand colors and typography to artifacts that should match its look and feel.
OfficialSkillApache-2.0No key
Guides intentional UI visual design, covering aesthetic direction, typography and choices that avoid generic templates.
OfficialSkillApache-2.0No key
Applies a consistent theme to artifacts such as slides, documents, reports and HTML landing pages.
OfficialSkillApache-2.0No 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
After a substantive answer, adds two or three follow-up questions tied to its content; runs at most once per chat.
OfficialSkillApache-2.0No key
Structured step-by-step reasoning tool that lets a model revise and branch its own plan.
OfficialNode.jsMIT AND Apache-2.0No key
Creates, edits and benchmarks Agent Skills, with evals and description tuning for better triggering.
OfficialSkillApache-2.0No key
Root-cause-first method to apply to any bug, test failure or unexpected behavior before proposing fixes.
SkillMITNo key
Lets an agent control Chrome and inspect performance traces, network requests and console output via DevTools.
OfficialNode.jsApache-2.0No key
Who stands behind it
