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The AI Stack Explained: LLM Talks, Program Walks
A first-principles breakdown of the entire AI stack — from LLM to Agent in one mental model. An LLM can only output text. Everything else is the program.
Long-form writing on production AI agent engineering — validation loops, tool-call reliability, completion ownership, context engineering, cost forensics.

A first-principles breakdown of the entire AI stack — from LLM to Agent in one mental model. An LLM can only output text. Everything else is the program.
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