An open book on building AI agents, from fundamentals to engineering practice, with runnable code for each chapter.
A full book on AI agents in 10 chapters: context engineering, memory, tools, coding agents, evaluation and multi-agent systems. Each concept comes with companion code you can run.
Download the PDF or EPUB from the README, or read it online. Run the chapter code alongside.
Nous Research · Agent
Nous Research's self-improving agent, which creates skills from experience, improves them in use and remembers you across sessions.
thedotmack · Plugin
Persistent memory for coding agents. It records what the agent did in each session and feeds the useful parts into the next one.
Stably AI · Tool / CLI
A desktop workspace for running a fleet of coding agents in parallel, each in its own git worktree, tracked in one place.