Professional context and harness engineering for Claude Code and OpenAI Codex. Build production-grade software with spec-driven development, TDD, persistent memory, quality gates, code intelligence, human oversight, and end-to-end verification.
Official, Anthropic-managed directory of high quality Claude Code Plugins.
Trail of Bits Claude Code skills for security research, vulnerability detection, and audit workflows
Opinionated Oxlint rules for rejecting low-evidence TypeScript and JavaScript patterns
A claude code skill to delegate prompts to codex
Claude skill: refactor code to reduce cyclomatic complexity
Claude Skill to do your tasks with subagents in Git worktrees
GitHub's official MCP Server
GitHub Agentic Workflows

A dev environment for AI agents.
A small, shared skill library by builders, for builders.
An open-source code repository and version control system for people and AI agents. Functions, types, recorded relationships and change history are repository data you commit, branch and merge. Look up what a change might affect before you make it. Public alpha.

Production-grade engineering skills for AI coding agents.
CLI tool for configuring and monitoring Claude Code
Automated TDD enforcement for Claude Code
A collection of settings to make Claude Code more useful.
Add ultrawork to any prompt for maximum parallel execution
Trivy plugin for starting an MCP server
SmartBear's official MCP Server
You already have the agent. This is everything around it. great_cto runs Claude Code as a pipeline of 70 specialist agents — an independent model checks each stage before the next builds on it, spending caps refuse rather than warn, and three decisions stay yours: what gets built, how, and whether it ships.
Extended Ralph loop for autonomous AI-driven plan execution
The best agent skills in the world for software development.
An agentic skills framework & software development methodology that works.
The agent IDE that builds itself