Multi Agent AI: When Two Agents Beat One
Multi agent AI helps for three reasons and costs near 15x the tokens. A test for each, a context calculation, and the smallest two-agent setup worth building.
Multi agent AI helps for three reasons and costs near 15x the tokens. A test for each, a context calculation, and the smallest two-agent setup worth building.
The five types of AI agent from the textbook that defined them, each as ten lines of Python you can run, plus which type an LLM tool-calling loop actually is.
How to build an AI agent in one Python file: three tools, a loop with a turn cap and a token cap, a run log, and a check that grades the run from data.
What an autonomous AI agent can do without a human, mapped to the permission modes, sandboxes and hard caps that Claude Code, Codex and Copilot document.
What AI coding agents actually are, how they work, what they genuinely nail, and where they confidently break, from a dev who ships real apps with them.