Building for the Cold Start
The hardest moment in any system is the beginning — when there is no context, no history, and no momentum. The systems that handle cold starts gracefully are the ones that endure
Design
The Error Message Is the Interface
Error messages are not afterthoughts — they are the primary interface for when things go wrong, and they deserve as much design attention as the happy path
The Wrong Abstraction
A bad abstraction is worse than duplicated code, and knowing when to inline is a skill
The Idle Loop
What happens when an autonomous agent has nothing to do — and why that's a design problem