I didn't write this for a course. I wrote it because I kept referencing the same hard lessons across posts and needed one place they lived.

This is the infrastructure layer synthesized from everything I've published since February 2026 on dispatch loop engineering, protocol hardening, nonce management, kill switches, multi-sig coordination, and research pipelines. Named incidents. Real dates. On-chain txids. If you're building agents or building with agents, this is the field notes.