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The difference between a good infrastructure troubleshooter and someone who restarts services and hopes is a mental model. When "HTTPS times out" lands in your inbox, you don't guess — you know exactly which layer to interrogate first, and in what order. The network is a stack, so treat it like...
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Welcome back to the Harness Engineering series — a 10-part journey from raw language model to production-ready agentic system. Made by builders. For builders.