what is AI Agent
You've Already Used an AI Agent — You Just Didn't Know It

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Series
A complete, practical guide to understanding how AI agents actually work — from tools and memory to workflows, RAG, and multi-agent systems.
No hype, just clear explanations and real examples.
You've Already Used an AI Agent — You Just Didn't Know It

In the last post, we said this: An agent = AI that keeps trying But that brings up a fair question. How does it actually do anything? How does it open a file? Search the web? Run code and check if i

In the last post, we saw this: AI can use tools. It can: search the web run code open files call APIs Cool. But something still feels… missing. Because there's one question almost nobody properly ex

Let Me Start With Something You've Probably Already Seen You type something like: "fix this bug" And then… you stop. You don't keep typing. You just watch. It reads your code. Changes something. Run

Let Me Ask You Something In the last post, we saw that AI agents work in a loop: Think → Decide → Use Tool → Get Result → Repeat That made sense. But once I understood that loop… one question immedia
