Best Definitions AI Skills & MCP Servers
16 curated Definitions skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.
Token Lens
MCP server for analyzing and optimizing context window token usage — audit tool definitions, compress schemas, track usage, and reduce bloat
Registry
MCP server for the UluOps Registry API — definition management, versioning, and analytics
Ctags
MCP server for fast code navigation using Universal Ctags and ripgrep — find symbol definitions and references across any codebase
Envmcp
A lightweight way to use environment variables in your Cursor MCP server definitions.
No Crd
Agent-driven, on-demand pod orchestration in Kubernetes (k8s/k3s) without Custom Resource Definitions (CRDs)
Gui
Model Context Protocol server for GolemUI — gives AI coding assistants deterministic schema validation and form generation for GolemUI form definitions.
Server
GridStorm MCP server — tool definitions for Claude/LLM integration with grid and PDF APIs
Ts Core
Agent-native TypeScript framework for building MCP servers. Declarative definitions with auth, multi-backend storage, OpenTelemetry, and first-class support for Bun/Node/Cloudflare Workers.
From Openapi
Production-ready library for converting OpenAPI specifications into MCP tool definitions
Tools
MCP tool definitions for SmartyTalent API
Brick Routes
API route detection — scan projects for Express, Fastify, Next.js, SvelteKit route definitions.
Generators
Config generators that transform canonical MCP server definitions to app-specific formats
Claude Commands
MCP server that serves skill/slash-command definitions from a git repo to any MCP-compatible AI client (Claude Code, Codex, Antigravity, Cursor, etc.) — primarily designed for Claude Code
Types
Shared type definitions for Undisk MCP — storage, tools, and protocol types
Toolrank
# ToolRank MCP Server Score and optimize MCP tool definitions for AI agent discovery. The first ATO (Agent Tool Optimization) platform. ## Tools ### toolrank_score Analyzes MCP tool definitions and returns a ToolRank Score (0-100) measuring agent-readiness. Evaluates four dime
macrostrat-mcp
Explore global geologic data to answer questions about bedrock, formations, ages, and stratigraphy. Retrieve units, columns, minerals, timescales, and definitions for any location to build accurate geological context. Generate geology map tiles for quick visualization of areas of
About Definitions skills on iClaude
iClaude is the universal install layer for AI skills. Every Definitions skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.