The ten guides · reading order

01What is an AI agent 02Types of AI agents 03AI agent evaluation 04Build flow & sequence 05Agent memory 06Tool use & MCP 07Multi-agent systems 08Agent failure modes 09Cost of running agents 10Agent frameworks

Agent topics

AI agents on the web now Agent as a service Social media and AI-generated content AI replying to comments and messages Publishing more and being found

Model comparisons

JEV and System One models vs AI agents AI agent comparison — coming soon

News

Global AI agent news Singapore agent news

Assessment

Quick readiness check

AiAgentNook

What AiAgentNook is for How guides are made
About

An independent notebook

AiAgentNook explains AI agents from first principles, in guides written from primary sources and reviewed before the draft label comes off. When something turns out to be wrong, the correction is noted on the page itself — never silently edited.

What AiAgentNook is for

AiAgentNook is a reader's guide to AI agents, written for people who are new to the subject. Ten guides cover the whole journey in plain language: what an agent actually is, the kinds that exist, how to tell whether one works, how to build one in the right order, and what it costs to run. Nothing is sold here — no agents, no services, no consulting. The site exists to explain.

How guides are made

What we don't do

No cookies and no tracking scripts — you can read everything here without a consent banner, because there is nothing to consent to. And because the site sells nothing, the guides have no reason to steer you toward any product.

Where to start

New to all of this? Start with guide 01 — it gives you the one definition everything else builds on. Prefer to browse? All ten guides are listed in reading order. And if you're wondering whether you need an agent at all, the 20-question self-check gives you an honest answer in a few minutes.

Rows of consoles and switchboards in a vintage control room
Plate 00 — watch the instruments, write down what they say Photo — Igor Saikin, Unsplash