OpenAI's Codex Security CLI and TypeScript SDK for finding, validating, and fixing security vulnerabilities. npm: https://www.npmjs.com/package/@openai/codex-security

Skills for threat modeling, scanning, triage, patching, plus an autonomous scanning harness you can /customize

Codex skill for safe codebase complexity analysis and performance optimization reports

The Programming Language for Agents

Sandboxed Rhai script execution engine with Cedar policy authorization for every system operation.

Official, AWS-supported MCP servers, skills, and plugins to help AI agents build on AWS

AI coding jargon, explained in plain English.

A GitHub TUI

Orchestrate sandboxed coding agents in TypeScript with sandcastle.run()

Symphony turns project work into isolated, autonomous implementation runs, allowing teams to manage work instead of supervising coding agents.

Free, local tool to track AI coding token usage and cost across 37 tools and agents (Claude Code, Cursor, Codex, Gemini and more), by model, project, and task. npx codeburn

Visualize harmony chat data and codex sessions in your browser

Skills for Real Engineers. Straight from my .agents directory.

Skills for AI Evals to compliment the course: AI Evals For Engineers & PMs

An open source template for building cloud agents.

The Native Terminal Emulator with a builtin AI Harness

Common GitHub workflows, actions, and shared tooling used across the Strands Agents organization.

A comprehensive evaluation framework for AI agents and LLM applications.

The official TypeScript SDK for Model Context Protocol servers and clients

Reference and an example for the Bluetooth API for makers in Claude Cowork & Claude Code Desktop

A format specification for describing a visual identity to coding agents. DESIGN.md gives agents a persistent, structured understanding of a design system.

Open-source Claude Design alternative. One-click import your Claude Code / Codex API key. Prompt → prototype / slides / PDF. Multi-model (Claude, GPT, Gemini, Kimi, GLM, Ollama). BYOK, local-first,…

"OpenHarness: Open Agent Harness with a Built-in Personal Agent--Ohmo!"

Virtual whiteboard for sketching hand-drawn like diagrams

The CLI for the Claude API

A set of tools that gives agents powerful capabilities.

Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud.

🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman