Governance framework for AI coding agents. It runs them through a five-step workflow (plan, build, review, test, ship) where no step counts as done without evidence. Drop-in rules and guardrails for Claude Code, Codex, Cursor, Copilot, and Antigravity, via AGENTS.md.
HAR: open agent harness (CLI + MCP) for coding agents. Isolated worktrees, deterministic verify, software factory workflows for Claude Code, Cursor, and Codex.
Agent OS: the agent gets smarter on its own. We just hold the line: Interview-gated, staged evaluation, budgeted evolution loop. MCP server, 14 runtimes: Claude Code, Codex CLI, Gemini CLI, OpenCode, Copilot, Kiro and more.
Helping the Agents Compose the Things
A growing collection of MCP servers bringing offensive security tools to AI assistants. Nmap, Ghidra, Nuclei, SQLMap, Hashcat and more.

Production-grade engineering skills for AI coding agents.
A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent
Costrict - strict AI coder for enterprises, quality first, including AI Agent, AI CodeReview, AI Completion.
Automated TDD enforcement for Claude Code

Lightweight coding agent written in Rust, optimized for memory footprint and performance
See what Claude Code and Codex actually send to the API — and what each part costs.
Multi-agent orchestration platform for Gemini CLI, Claude Code, Codex, and Qwen Code — 39 specialists, parallel subagents, persistent sessions, and built-in code review, debugging, security, SEO, accessibility, and compliance tools
The operations layer for agentic engineering — portable skills and contracts connecting intent, agents, software factories, and independent judgment.

Ghost Security's collection of AppSec skills for AI coding agents
Claude Code skill: Software design philosophy guide based on A Philosophy of Software Design by John Ousterhout

VSCode Extension with an MCP server that exposes semantic tools like Find Usages and Rename to LLMs
A suite of MCP tools for AIs to analyze and modify C# solutions with high signal, Roslyn powered context.
Chiasmus is an MCP server that gives language models access to formal verification
Rust MCP server for comprehensive code intelligence - 90 tools, 32 languages, security scanning, call graphs, and more
A reference software factory for Claude Code and Codex
CI-native security testing for MCP servers. Attack simulation, schema drift detection, and health scoring before agents depend on them.
Agent skill for modern Android development with Jetpack Compose — best practices for code generation and review
A GitHub MCP Server extension for Zed
Skill pack for server-side TypeScript design and review in Claude Code.