Get the free Modern AI System Decoder

Embeddings, vector databases, RAG, MCP, agents — they sound like five disconnected buzzwords. They're not. They're five parts of one machine, and every AI app you use is built from them. This free field guide is the one-page-per-part decoder: for each part you get what it is, the exact problem it solves, how it works in plain English, the gotcha nobody mentions, and the terms you'll hear it called. Inside: the five parts in order (Embeddings turn meaning into numbers → Vector databases search that meaning → RAG feeds it to the model as an open-book exam → Tools & MCP give it hands → Agents run the loop); the Pro Layer that makes RAG actually work (chunking + reranking); the RAG-vs-fine-tuning rule everyone gets backwards (know something → RAG, behave a certain way → fine-tune); an app-map that shows the same five gears turning inside ChatGPT, Perplexity, Claude and Cursor; and a one-page glossary of every term in a single line. Read it once and you'll be able to look at any AI product and name exactly which parts are working. No math, no jargon — just the machine.

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