📄️ Know Your Claude
A developer's guide to understanding Anthropic, the Claude model family, Claude Code CLI, MCP, Agents, Skills, Tokens, and how to get the most out of the AI pair-programmer living in your terminal.
📄️ Know Your Codex
A developer's guide to understanding OpenAI, ChatGPT, Codex, the Codex CLI, startup flags like --yolo, slash commands, profiles, approval modes, AGENTS.md, spec.md, installation, context windows, and how to get better results from the AI coding agent working in your terminal.
📄️ Know Your GitHub Copilot
A developer's guide to understanding GitHub Copilot — the models behind it, code completions, Copilot Chat, agent mode, the agentic Copilot CLI, the Copilot coding agent, custom instructions, MCP, plans, and how to get better results from the AI pair-programmer built into your editor and terminal.
📄️ Token Optimization Guide
The definitive, practical guide to controlling token consumption and optimizing cost, speed, and quality across GitHub Copilot, Claude Code, and OpenAI Codex. Every technique here is drawn from how these agents actually build context, so you can spend fewer tokens and get better answers.