PROJECT ONE - A MINIMAL HARNESS

KEY TERMS REVIEW Resume Review Agent: the small practice agent built across Chapters 65 through 69. Practice Lab: the safe, fictional project in which you test everything in this book. Agent loop: the repeating cycle of think, act, and observe. Mock model: a scripted stand-in for a real model, used so tests behave the same every time. Model adapter: the one file that talks to a model. Tool registry: the menu of tools, with names, descriptions, and handlers. Permission gate: code that checks every request against a list of allowed folders. Step limit: the maximum number of loop turns allowed for one task. Token: a small chunk of text, the unit in which model use is measured. Environment variable: a named setting held in the computer's memory, used to keep secret keys out of files. Log: a diary of everything the program did, written in structured lines.