Follow-up to the cherry-picked #112019 (@KoNit-K): the clamp in the generic
``extra_body.reasoning`` fallback only covered providers WITHOUT a
reasoning-aware profile. On the profile path (OpenRouter/Nous slots used as
MoA aggregator or aux model) ``_project_provider_profile`` received the raw
config and the OpenRouter profile passes ``ultra`` through whenever the
catalog vocabulary is cold, so the 400 from #112010 survived there.
Move the clamp up to ``_build_call_kwargs`` so both the profile projection
and the fallback see a wire-level effort — the same entry clamp the main
transport applies in ``_reasoning_config_for_model`` (#89503). The shared
policy lives once in ``agent.reasoning_effort.clamp_reasoning_config``; the
transport delegates to it instead of carrying its own copy.
Offline kwargs probe (issue's exact call): before
``extra_body.reasoning == {'enabled': True, 'effort': 'ultra'}`` on nous and
openrouter aux/MoA routes; after ``'effort': 'max'`` on every route,
``high`` verbatim and ``{'enabled': False}`` unchanged.
teknium1
9e45a90488