Specsmaxxing: I Wrote YAML Specs for My AI Agents — Here's What Changed (and What Didn't) A YAML spec for an AI agent is basically the blueprint you leave for the contractor when you can't be on-site. If the blueprint is solid, they build exactly what you want. If there's one ambiguous detail — "wall at the back" with no measurements — they make a call, and when you show up, the wall is in the wrong place. Once you see it that way, you can't unsee it in every prompt you throw at an agent. Three weeks ago I read the Hacker News thread on specsmaxxing — the idea of writing formal YAML specs as an antidote to "AI psychosis": that feeling of total loss of control when agents generate code without clear context, each doing its own thing, and suddenly you have a system that doesn't feel like yours anymore. The idea hit me with the same mix of "this actually makes sense" and "do I really need another YAML in my life?" that almost everything I read at 11pm on a Monday hits me with. I implemented it anyway.…