https://milanbuilds.app/log/Notes on building AI systems.https://milanbuilds.app/log/anatomy-of-a-software-factory/https://milanbuilds.app/log/anatomy-of-a-software-factory/Sun, 25 Oct 2026 00:00:00 GMTThe agents, the checks between them, and the guardrails that make it safe to leave running.https://milanbuilds.app/log/rag-eval-harness-in-200-lines/https://milanbuilds.app/log/rag-eval-harness-in-200-lines/Sun, 25 Oct 2026 00:00:00 GMTThree numbers instead of one, a small labelled test set, and a gate that fails CI the day answers get worse.https://milanbuilds.app/log/why-your-ai-automation-keeps-breaking/https://milanbuilds.app/log/why-your-ai-automation-keeps-breaking/Sun, 25 Oct 2026 00:00:00 GMTMost "the bot stopped working" tickets have the same handful of causes. Here they are, with the fix for each.