Best Rules AI Skills & MCP Servers
39 curated Rules skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.
Prompt Optimizer Local
Advanced cross-platform prompt optimization with MCP integration and 120+ optimization rules
Guidance
Guidance Control Plane - Compiles, retrieves, enforces, and evolves guidance rules for Claude Code sessions
Caveman Shrink
MCP proxy that compresses prose fields (tool descriptions, etc.) using caveman rules. Same accuracy, fewer context tokens.
Ai Rulez
Complete AI development workflow for 19+ tools. Ships with builtin rules, agents, and conventions. Generate native configs for Claude, Cursor, Copilot, Windsurf, Gemini, Codex and more from a single source.
Acw Tools
MCP (Model Context Protocol) tools for ACW - download rules and initialize Common Admin projects
Eslint Plugin Secure Coding
Security-focused ESLint plugin with 89 AI-parseable rules for detecting and preventing vulnerabilities. OWASP Top 10 2021 + Mobile Top 10 2024 coverage, CWE references, and AI-assisted fix guidance.
Coder Config
Configuration manager for AI coding tools - Claude Code, Gemini CLI, Codex CLI, Antigravity. Manage MCPs, rules, permissions, memory, and workstreams.
Fabric
Fabric MCP server — code intelligence, governance rules, and cloud-sync disaster recovery over a local codebase index
Spec Tools
Spec-driven toolkit for AI agents — skills, rules & prompts via MCP
Codingbuddy
Multi-AI Rules MCP Server - One source of truth for AI coding rules across all AI assistants
Brick Validate
Validate data — JSON syntax, JSON Schema compliance, TypeScript type checking, lint rules.
Codeops
MCP (Model Context Protocol) server providing AI coding agents with universal, language-agnostic development rules. Includes coding standards, testing workflows, git conventions, plan creation/execution protocols, and intelligent project analysis for auto
Server
Framework-agnostic domain knowledge API for Brainerce. Provides SDK docs, types, business flows, critical rules, and store capabilities to AI tools like Lovable, Cursor, Bolt, v0, and Claude Code. Does NOT provide framework-specific boilerplate — clients
SpecLock - AI Constraint Engine
AI Constraint Engine with AI Patch Firewall. 42 MCP tools. Patch Gateway (ALLOW/WARN/BLOCK verdicts), diff-native review (10 scored signals, hard escalation rules), Spec Compiler, Code Graph, Typed constraints, Python SDK, ROS2. Works with Claude Code, Cursor, Windsurf, Cline, Bo
ContrastAPI
MCP server with 53 security intelligence tools — CVE/KEV, MITRE ATLAS+D3FEND, Sigma detection rules, email security posture (SPF/DMARC), domain & web intel, threat intel.
About Rules skills on iClaude
iClaude is the universal install layer for AI skills. Every Rules 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.