The composer showed "<model> · Med" in one truncating pill and the only way
to change the effort was to open the model menu, find the active model's
row, and hover it for the per-row options submenu. Users read the pill as
"this model is medium only" and never found the submenu.
- New `ReasoningPill` next to the model pill: shows the active model's live
effort (session value, else the profile default) and opens the same
Thinking / Fast / Effort rows the catalog submenu offers, for the active
model only. Hidden when the catalog reports `reasoning: false`; stays
while capabilities are unknown so it never flickers during the fetch.
Folds away with the model pill in the compact composer stages.
- `useModelMenuController` (shell sibling) now owns the session write /
preset / optimistic-store / rollback logic that lived inside
`ModelMenuPanel`; the model menu and the new `ReasoningMenuPanel` share it
so an edit from either surface is one code path. Tiles get their own
pill bound to their SessionView, primary or tile — never the globals.
- `ModelOptionsContent` (the submenu body) is exported container-free so
the pill's top-level menu renders it without a Radix Sub wrapper.
- The model pill drops the effort suffix (`formatModelPillLabel`: name +
Fast); `formatModelStatusLabel` had no other caller and is removed.
- `currentModelCapabilities()` in lib/model-options resolves the active
pick's caps through `catalogProviderMatches` (aliases, custom slugs).
Live (headless Electron + worktree `hermes serve`, CDP): before — one
pill "Deepseek V4 Flash · Low", no effort control; after — "Deepseek V4
Flash" + "Low" pill; pick High → `config.get reasoning` on the live
session returns high; a `reasoning:false` cap unmounts the pill; the
catalog row submenu still writes through and the pill mirrors it.
Credit: the dedicated-pill direction was proposed independently in
composer selector on current main with the shared-controller shape.
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