Build Your Harness

Part of the Vibe Coding: Advanced Engineering course

Engineers who get consistently good results from models are rarely writing better prompts than everyone else. They have built a harness: the repeatable setup around the model, made of rules, tools, and checks, that makes a good result the default outcome instead of the lucky one. Prompt skill has a ceiling and it does not compound. A harness compounds.

Open harness_audit.py and click play. It checks for the signals that let a repository correct a model without a human in the loop ...