Part 7 of the Harness Engineering series. Memory is what turns a stateless-per-call system into something with continuity. Short-term and long-term memory are two different systems — here's why, and the three design decisions that separate a real memory system from a naive one.

Part 5 of the Harness Engineering series. The context is everything the model gets to see on a given API call — and every turn requires you to assemble it fresh. Here's why…

Part 6 of the Harness Engineering series. The Environment is the runtime tools operate inside — filesystem, shell, network, resources. Here's why every tool with side effects…

Part 7 of the Harness Engineering series. Memory is what turns a stateless-per-call system into something with continuity. Short-term and long-term memory are two different…

Part 8 of the Harness Engineering series. Observability turns "I built an agent" into "I built an agent I can actually operate." Here's what it is, why non-deterministic…