The title lane asks for thinking off (reasoning_config={"enabled": False}). A route
whose model cannot disable reasoning answers 400 "Reasoning is mandatory for this
endpoint and cannot be disabled"; the ladder then retried at the floor effort and
memoised the route, but only in memory. OpenRouter and the Nous Portal already
publish reasoning.mandatory per model in /v1/models, and Hermes mirrors that
catalog to cache/reasoning_caps.json. The aux floor never read it, so an aux-only
OpenRouter route (nothing else warms that catalog) paid the failed round-trip in
every process.
known_reasoning_floor now also floors a thinking-off aux call when the route's
catalog (memory, then disk mirror; never HTTP) flags the model mandatory, and
kicks the background warm on a cold catalog so the mirror answers every later
call and process. Optional-reasoning models keep their disable.
9135bd35c7