Prompt First Speed vs Spec Discipline

# Prompt-first speed versus spec discipline

I'm sorting out two different ways AI shows up in how I build things. One path optimizes for
**velocity**: I state what I want in natural language, iterate on the output, and the conversation
starts to double as an informal spec. The other path optimizes for **durability**: I nail down intent in
an explicit, reviewable specification and treat generated code as something that must match that
intent.

Both are legitimate; the mistake I'm trying to avoid is using the fast path **by default** when the
stakes are high, then wondering why maintenance hurts.

## Two loops side by side