feat(agents): per-mode default model settings with autoswitch#11
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Add Default Plan / Agent / Review Mode Model selectors in Settings → Agents, defaulting to Opus 4.7 1M / Sonnet 4.6 / Opus 4.7 (falling back to Opus if missing). The chat input selector now automatically switches to the mode's default at every mode-change point — plan approval, /plan, /agent, Shift+Tab toggle, new-chat initialization, and /review (transiently). The Settings dropdowns list every enabled model — Claude and Codex alike, filtered by hiddenModelsAtom — so users can pin a Codex model as the Plan / Agent / Review default. Cross-provider autoswitch writes to the right atom family (subChatModelIdAtomFamily vs subChatCodexModelIdAtomFamily), sets a new subChatProviderOverride atom, and syncs lastSelectedAgentIdAtom so the transport follows. subChatProviderOverrides moves from local React state in ChatViewInner to a runtime-only Jotai atom (cleared on chat switch) so the model-switching helper can write to it from outside React. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Add Default Plan / Agent / Review Mode Model selectors in Settings → Agents, defaulting to Opus 4.7 1M / Sonnet 4.6 / Opus 4.7 (falling back to Opus if missing). The chat input selector now automatically switches to the mode's default at every mode-change point — plan approval, /plan, /agent, Shift+Tab toggle, new-chat initialization, and /review (transiently).
The Settings dropdowns list every enabled model — Claude and Codex alike, filtered by hiddenModelsAtom — so users can pin a Codex model as the Plan / Agent / Review default. Cross-provider autoswitch writes to the right atom family (subChatModelIdAtomFamily vs subChatCodexModelIdAtomFamily), sets a new subChatProviderOverride atom, and syncs lastSelectedAgentIdAtom so the transport follows.
subChatProviderOverrides moves from local React state in ChatViewInner to a runtime-only Jotai atom (cleared on chat switch) so the model-switching helper can write to it from outside React.