E.V.E. & The Haven
Local-first AI agent system 2026
- Designed an agent system that looks like a world: each department is a building on a 16-bit island, and its agents sleep there until an event needs them.
- Wrote the ~4,500-line system spec and built the app with Claude Code; plain code runs first and AI is called only when real reasoning is needed.
- Set hard rules the agents cannot override, including human approval for anything financial.