“It’s the Architecture, Stupid” — Why Prompt Engineering Won’t Fix Agents

Yes, that is exactly the connection I had in mind. ORCA seems to move cognitive operations out of the prompt and into reusable runtime capabilities. DESi is trying to add a gating layer before execution: is this method allowed for this task, given the available evidence, constraints, uncertainty, and required inputs? So in a combined architecture, ORCA-like skills could be the executable capabilities, while DESi-style method validity gating decides when a skill, tool, retrieval step, clarification state, or model call is epistemically justified. In other words: reusable skills are the “how”; method validity gating is the “whether” and “under which conditions.”