Brained by Britt · Free AI guide

The agent stack, de-hyped.

Everyone's selling 'AI agents' now — but half of them are just a chatbot with a confident name. This free guide breaks down what 'agent' actually means (assistant vs. workflow vs. agent), so you can tell what a tool really does before you pay for it.

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Free guideThe Agent StackAssistant · Workflow · AgentBrained by Britt
Why this one's different

Most "agents" aren't.

The word got slapped on everything, and it's costing people money on tools that don't do what they think. I build with these every day — here's the plain-language version of what's real, what's marketing, and how to tell the difference.

"Before you pay for an 'agent,' it helps to know whether it's actually one."
What you'll walk away with

Know what you're buying.

No hype — just the honest definitions and the questions that stop a slick demo from selling you the wrong thing.

/ THE WORDS

Assistant vs. workflow vs. agent

What each term really means, so a demo can't dazzle you into buying the wrong thing.

/ THE STACK

How the pieces fit

The layers that make an agent actually useful — and where tools quietly stop short.

/ THE TEST

Tell real from hype

The questions to ask any 'AI agent' tool before you hand over your card.

Assistant vs. workflow vs. agent — the honest definitions.
What makes something actually agentic, not just automated.
The layers of a real agent stack.
Questions to ask before you pay for 'an agent.'
Where tools oversell — and how to spot it.
Plain language throughout — no CS degree required.
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The examples, thresholds, schedules, and figures in this guide are illustrative recommendations — adapt them to your workload and risk. It's practical education built from real building and research, not professional, legal, or financial advice. Confirm any product's capabilities before you buy.