iClaude
Category

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

MCP Registry

Advanced cross-platform prompt optimization with MCP integration and 120+ optimization rules

MCP Registry · ★ 5.0free

Guidance

MCP Registry

Guidance Control Plane - Compiles, retrieves, enforces, and evolves guidance rules for Claude Code sessions

MCP Registry · ★ 5.0free

Caveman Shrink

MCP Registry

MCP proxy that compresses prose fields (tool descriptions, etc.) using caveman rules. Same accuracy, fewer context tokens.

MCP Registry · ★ 5.0free

Ai Rulez

MCP Registry

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.

MCP Registry · ★ 5.0free

Acw Tools

MCP Registry

MCP (Model Context Protocol) tools for ACW - download rules and initialize Common Admin projects

MCP Registry · ★ 5.0free

Eslint Plugin Secure Coding

MCP Registry

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.

MCP Registry · ★ 5.0free

Coder Config

MCP Registry

Configuration manager for AI coding tools - Claude Code, Gemini CLI, Codex CLI, Antigravity. Manage MCPs, rules, permissions, memory, and workstreams.

MCP Registry · ★ 5.0free

Fabric

MCP Registry

Fabric MCP server — code intelligence, governance rules, and cloud-sync disaster recovery over a local codebase index

MCP Registry · ★ 5.0free

Spec Tools

MCP Registry

Spec-driven toolkit for AI agents — skills, rules & prompts via MCP

MCP Registry · ★ 5.0free

Codingbuddy

MCP Registry

Multi-AI Rules MCP Server - One source of truth for AI coding rules across all AI assistants

MCP Registry · ★ 5.0free

Brick Validate

MCP Registry

Validate data — JSON syntax, JSON Schema compliance, TypeScript type checking, lint rules.

MCP Registry · ★ 5.0free

Codeops

MCP Registry

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

MCP Registry · ★ 5.0free

Server

MCP Registry

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

MCP Registry · ★ 5.0free

SpecLock - AI Constraint Engine

Smithery

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

Smitheryfree

ContrastAPI

Smithery

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.

Smitheryfree

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.