feat: small-model utility calls on existing OpenCode providers (#2049)

Adds a server-side "small model" capability: direct, cheap LLM calls that reuse the user's existing OpenCode provider logins — the mechanism OpenCode uses internally for titles and summaries but does not expose through the SDK or plugins. Zero new dependencies; plain fetch with per-provider wire formats, credentials never leave the server. Core (packages/web/server/lib/small-model): - Resolution mirrors OpenCode's session scoping: explicit settings override → small_model from the OpenCode config → family scan within the session's provider → the session's own model. The global provider scan only serves callers without a session context, and background callers forbid it entirely (restrictToPreferredProvider), so conversation content never reaches a provider the user didn't pick — explicit choices excepted. - Per-provider auth replicating OpenCode's plugin loaders: GitHub Copilot (device token as bearer, no exchange), ChatGPT plan via the codex Responses API (single-flight OAuth refresh written back to auth.json), Anthropic messages, Google generateContent, generic OpenAI-compatible. - OpenCode's free models (opencode/big-pickle, *-free) are never called directly; unauthenticated providers are skipped by design. - Prompt clamping to the model's catalog context limit; thinking disabled where a wire switch exists (Z.AI/GLM, MiniMax-M3, Gemini Flash); robust content parsing with a clear error when a thinking model spends its whol budget on reasoning. - Settings → Sessions gains a Small Model group: use-default checkbox plus an override picker limited to authenticated providers, persisted with web/desktop/VS Code sanitization parity. Consumers: - Session assist: a server-side watcher on the global SSE hub generates a short recap and one suggested follow-up after a session idles quietly fo a minute, stored on session metadata (openchamber.assist). Freshness is keyed to the last assistant message id, so new activity invalidates the payload everywhere with no extra writes. The chat shows the recap under the last message after five quiet minutes and the suggestion as a dismissible chip above the composer (tap fills the input, never sends). Gated by a new Chat setting (default on) that is a hard generation switch. Language is anchored to the conversation itself, with a script-mismatch guard against model/backend language hallucination. - TTS: a third input mode, summarized — long replies are condensed to spoken prose before playback on any TTS engine. - Git: commit-message and PR generation moved off the active chat session onto the small model fed with real diffs and the commit list (bodies included), with a session-transport fallback for free-model-only setups. - Notes: Add to notes distills long selections into 1-3 dense sentences preserving exact identifiers, with verbatim fallback on failure. Fixes along the way: - The global event watcher now starts unconditionally; it was gated behind the desktop-notify env, leaving the server-side event hub dead in packaged apps. - OpenCode re-emits message.updated for old user messages after idle; the watcher no longer mistakes those for new activity. - Session metadata merges from a fresh read right before the PATCH, so writes made during the generation window (suggestion dismissals, review links) are preserved; the assist runtime stops during graceful shutdown.
2026-07-05 23:19:10 +03:00
parent e5b03493da
commit 28f0736d69
61 changed files with 2455 additions and 103 deletions
@@ -14,6 +14,7 @@ import MessageList, { type MessageListHandle } from './MessageList';
 import { PermissionCard } from './PermissionCard';
 import { QuestionCard } from './QuestionCard';
 import { StatusRowContainer } from './StatusRowContainer';
+import { SessionRecapNote } from '@/components/chat/SessionRecapSpacer';
 import ScrollToBottomButton from './components/ScrollToBottomButton';
 import { ScrollShadow } from '@/components/ui/ScrollShadow';
 import { useChatAutoFollow, type AnimationHandlers, type ContentChangeReason } from '@/hooks/useChatAutoFollow';
@@ -266,6 +267,8 @@ const ChatViewport = React.memo(({
                            </div>
                        )}

+                        <SessionRecapNote sessionId={currentSessionId} isMobile={isMobile} />
+
                        <div className="mb-3">
                            <StatusRowContainer />
                        </div>
@@ -98,6 +98,7 @@ import {
    findAttachmentCitationRanges,
 } from './attachmentCitations';
 import { getFileMentionAutocompleteQuery, type FileMentionAutocompleteInputSource } from './fileMentionAutocompleteState';
+import { SessionSuggestionChip } from '@/components/chat/SessionSuggestionChip';
 import type { Part } from '@opencode-ai/sdk/v2/client';

 const MAX_VISIBLE_TEXTAREA_LINES = 8;
@@ -4053,6 +4054,16 @@ const ChatInputComponent: React.FC<ChatInputProps> = ({ onOpenSettings, scrollTo
        textareaRef.current?.focus({ preventScroll: isCapacitorApp() });
    }, []);

+    const applyAssistSuggestion = React.useCallback((text: string) => {
+        setMessage(text);
+        if (isMobile && !mobileComposerExpanded) {
+            expandMobileComposer('focus');
+        } else {
+            requestAnimationFrame(() => textareaRef.current?.focus());
+        }
+    }, [expandMobileComposer, isMobile, mobileComposerExpanded]);
+
+
    const handleMobileNewSession = React.useCallback(() => {
        if (newSessionDraftOpen) return;
        openNewSessionDraft(currentDirectory ? { directoryOverride: currentDirectory } : undefined);
@@ -4744,6 +4755,13 @@ const ChatInputComponent: React.FC<ChatInputProps> = ({ onOpenSettings, scrollTo
                    )}
                >
                {isMobile && !mobileComposerExpanded ? (
+                    <div className="flex flex-col">
+                    <SessionSuggestionChip
+                        sessionId={currentSessionId}
+                        hidden={hasContent || newSessionDraftOpen}
+                        onApply={applyAssistSuggestion}
+                        className="mb-1.5"
+                    />
                    <div className="flex items-center gap-2">
                        <div
                            className="flex h-11 min-w-0 flex-1 items-center gap-x-0.5 rounded-full border border-border/80 pl-2 pr-1"
@@ -4818,7 +4836,15 @@ const ChatInputComponent: React.FC<ChatInputProps> = ({ onOpenSettings, scrollTo
                            </button>
                        </div>
                    </div>
+                    </div>
                ) : (
+                <>
+                <SessionSuggestionChip
+                    sessionId={currentSessionId}
+                    hidden={hasContent || newSessionDraftOpen}
+                    onApply={applyAssistSuggestion}
+                    className="mb-1.5"
+                />
                <div
                    className={cn(
                        "flex flex-col relative overflow-visible",
@@ -5202,6 +5228,7 @@ const ChatInputComponent: React.FC<ChatInputProps> = ({ onOpenSettings, scrollTo
                    </div>

                </div>
+                </>
                )}
                {/* Wrapper-level dictation engine + overlay: stays mounted across
                    the pill ↔ composer swap so a recording started from the pill
@@ -0,0 +1,34 @@
+import React from 'react';
+import { useSessionAssistState } from '@/hooks/useSessionAssist';
+import { useI18n } from '@/lib/i18n';
+
+interface SessionRecapNoteProps {
+  sessionId: string;
+  isMobile: boolean;
+}
+
+// Quiet one-paragraph recap of the agent's last reply, rendered right under
+// the last message (above the reserved bottom gap). Appears only after the
+// 5-minute quiet window, so the layout shift happens off-screen in practice.
+export const SessionRecapNote: React.FC<SessionRecapNoteProps> = React.memo(({ sessionId, isMobile }) => {
+  const { visibleRecap } = useSessionAssistState(sessionId);
+  const { t } = useI18n();
+
+  if (!visibleRecap) {
+    return null;
+  }
+
+  return (
+    <div className="chat-message-column">
+      {/* The last assistant turn carries pb-8 — pull the recap up into that gap. */}
+      <div className="-mt-6" aria-label={t('chat.recap.aria')}>
+        <span className={`typography-meta text-muted-foreground/70 ${isMobile ? 'line-clamp-4' : 'line-clamp-2'}`}>
+          <span className="italic text-muted-foreground/50">{t('chat.recap.label')} </span>
+          {visibleRecap}
+        </span>
+      </div>
+    </div>
+  );
+});
+
+SessionRecapNote.displayName = 'SessionRecapNote';
@@ -0,0 +1,93 @@
+import React from 'react';
+import { Icon } from '@/components/icon/Icon';
+import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip';
+import { useSessionAssistState } from '@/hooks/useSessionAssist';
+import { useThemeSystem } from '@/contexts/useThemeSystem';
+import { patchSessionMetadata } from '@/sync/session-actions';
+import { useI18n } from '@/lib/i18n';
+
+interface SessionSuggestionChipProps {
+  sessionId: string | null;
+  /** The composer already has content — the suggestion must stay out of the way. */
+  hidden: boolean;
+  onApply: (text: string) => void;
+  className?: string;
+}
+
+const isRecord = (value: unknown): value is Record<string, unknown> =>
+  Boolean(value) && typeof value === 'object' && !Array.isArray(value);
+
+// One small-model-suggested follow-up message, styled like the draft starter
+// chips. Tapping it fills the composer (no auto-send); the X patches the
+// suggestion out of the session metadata so it stays dismissed everywhere.
+export const SessionSuggestionChip: React.FC<SessionSuggestionChipProps> = React.memo(({ sessionId, hidden, onApply, className }) => {
+  const { suggestion } = useSessionAssistState(sessionId ?? '');
+  const { t } = useI18n();
+  const { currentTheme } = useThemeSystem();
+  const [dismissing, setDismissing] = React.useState(false);
+
+  const handleDismiss = React.useCallback(async (event: React.MouseEvent) => {
+    event.stopPropagation();
+    if (!sessionId || dismissing) return;
+    setDismissing(true);
+    try {
+      await patchSessionMetadata(sessionId, undefined, (metadata) => {
+        const namespace = isRecord(metadata.openchamber) ? metadata.openchamber : {};
+        const assist = isRecord(namespace.assist) ? namespace.assist : {};
+        const nextAssist = { ...assist };
+        delete nextAssist.suggestion;
+        return { ...metadata, openchamber: { ...namespace, assist: nextAssist } };
+      });
+    } catch (error) {
+      console.warn('Failed to dismiss suggestion:', error);
+    } finally {
+      setDismissing(false);
+    }
+  }, [sessionId, dismissing]);
+
+  if (!suggestion || hidden) {
+    return null;
+  }
+
+  const chipStyle: React.CSSProperties = {
+    backgroundColor: currentTheme?.colors?.surface?.elevated,
+    borderColor: currentTheme?.colors?.interactive?.border,
+  };
+
+  return (
+    <div className={`flex w-full min-w-0 justify-center ${className ?? ''}`}>
+      <div className="relative w-full min-w-0 max-w-full">
+        <Tooltip>
+          <TooltipTrigger asChild>
+            <button
+              type="button"
+              onClick={() => onApply(suggestion)}
+              onMouseDown={(event) => event.preventDefault()}
+              aria-label={t('chat.suggestion.applyAria')}
+              className="group flex w-full min-w-0 select-none items-center gap-1.5 rounded-full border py-1.5 pl-3 pr-8 text-sm text-muted-foreground transition-colors hover:bg-[var(--interactive-hover)] hover:text-foreground"
+              style={chipStyle}
+            >
+              <Icon name="pencil-ai-2" className="h-3.5 w-3.5 shrink-0 opacity-70 transition-opacity group-hover:opacity-100" />
+              <span className="truncate">{suggestion}</span>
+            </button>
+          </TooltipTrigger>
+          <TooltipContent className="max-w-sm whitespace-pre-wrap">
+            {suggestion}
+          </TooltipContent>
+        </Tooltip>
+        <button
+          type="button"
+          onClick={(event) => void handleDismiss(event)}
+          onMouseDown={(event) => event.preventDefault()}
+          aria-label={t('chat.suggestion.dismissAria')}
+          title={t('chat.suggestion.dismissAria')}
+          className="absolute right-1.5 top-1/2 flex h-5 w-5 -translate-y-1/2 items-center justify-center rounded-full text-muted-foreground/60 transition-colors hover:bg-[var(--interactive-hover)] hover:text-foreground"
+        >
+          <Icon name="close" className="h-3 w-3" />
+        </button>
+      </div>
+    </div>
+  );
+});
+
+SessionSuggestionChip.displayName = 'SessionSuggestionChip';
@@ -10,6 +10,7 @@ import { copyTextToClipboard } from '@/lib/clipboard';
 import { toast } from '@/components/ui';
 import { Icon } from "@/components/icon/Icon";
 import { OPENCHAMBER_PROJECT_NOTES_MAX_LENGTH, getProjectNotesAndTodos, saveProjectNotesAndTodos } from '@/lib/openchamberConfig';
+import { summarizeSelectionForNotes } from '@/lib/smallModel';
 import { resolveProjectForSessionDirectory } from '@/lib/projectResolution';
 import { useEffectiveDirectory } from '@/hooks/useEffectiveDirectory';
 import { isVSCodeRuntime } from '@/lib/desktop';
@@ -518,7 +519,9 @@ export const TextSelectionMenu: React.FC<TextSelectionMenuProps> = ({ containerR

    try {
      setIsAddingToNotes(true);
-      const noteText = selectedTextMarkdown || selectedText;
+      // Long selections are distilled into a compact note by the small model;
+      // short ones (and any generation failure) go in verbatim.
+      const noteText = await summarizeSelectionForNotes(selectedTextMarkdown || selectedText, currentSessionId);
      const projectData = await getProjectNotesAndTodos(currentProjectRef);
      const nextNotes = appendDistilledInsightToNotes(projectData.notes, noteText);
      const saved = await saveProjectNotesAndTodos(currentProjectRef, {
@@ -160,7 +160,6 @@ export const iconSpriteData = {
  "menu-fold-2": `<path d="M4.40347 3.90332L2.98926 5.31753L6.17124 8.49951L2.98926 11.6815L4.40347 13.0957L8.99967 8.49951L4.40347 3.90332ZM20.9997 19.9995V17.9995H2.99967V19.9995H20.9997ZM20.9997 12.9995V10.9995H11.9997V12.9995H20.9997ZM20.9997 5.99951V3.99951H11.9997V5.99951H20.9997Z" fill="currentColor"/>`,
  "menu-search": `<path d="M15.5 5C13.567 5 12 6.567 12 8.5C12 10.433 13.567 12 15.5 12C17.433 12 19 10.433 19 8.5C19 6.567 17.433 5 15.5 5ZM10 8.5C10 5.46243 12.4624 3 15.5 3C18.5376 3 21 5.46243 21 8.5C21 9.6575 20.6424 10.7315 20.0317 11.6175L22.7071 14.2929L21.2929 15.7071L18.6175 13.0317C17.7315 13.6424 16.6575 14 15.5 14C12.4624 14 10 11.5376 10 8.5ZM3 4H8V6H3V4ZM3 11H8V13H3V11ZM21 18V20H3V18H21Z" fill="currentColor"/>`,
  "mic": `<path d="M11.9998 3C10.3429 3 8.99976 4.34315 8.99976 6V10C8.99976 11.6569 10.3429 13 11.9998 13C13.6566 13 14.9998 11.6569 14.9998 10V6C14.9998 4.34315 13.6566 3 11.9998 3ZM11.9998 1C14.7612 1 16.9998 3.23858 16.9998 6V10C16.9998 12.7614 14.7612 15 11.9998 15C9.23833 15 6.99976 12.7614 6.99976 10V6C6.99976 3.23858 9.23833 1 11.9998 1ZM3.05469 11H5.07065C5.55588 14.3923 8.47329 17 11.9998 17C15.5262 17 18.4436 14.3923 18.9289 11H20.9448C20.4837 15.1716 17.1714 18.4839 12.9998 18.9451V23H10.9998V18.9451C6.82814 18.4839 3.51584 15.1716 3.05469 11Z" fill="currentColor"/>`,
-  "mic-off": `<path d="M16.4249 17.839L21.1925 22.6066L22.6068 21.1924L2.80777 1.3934L1.39355 2.80761L7.00016 8.41421V10C7.00016 12.7614 9.23873 15 12.0002 15C12.4825 15 12.9489 14.9317 13.3902 14.8042L14.9404 16.3544C14.0464 16.7688 13.0503 17 12.0002 17C8.47368 17 5.55627 14.3923 5.07105 11H3.05509C3.51623 15.1716 6.82854 18.4839 11.0002 18.9451V23H13.0002V18.9451C14.2341 18.8087 15.3929 18.4228 16.4249 17.839ZM11.5528 12.9669C10.2541 12.7727 9.22745 11.7461 9.03328 10.4473L11.5528 12.9669ZM19.3747 15.1604L17.9323 13.7179C18.4407 12.9084 18.788 11.9874 18.9293 11H20.9452C20.7754 12.5366 20.2187 13.9565 19.3747 15.1604ZM16.4658 12.2514L14.9173 10.703C14.9715 10.4775 15.0002 10.2421 15.0002 10V6C15.0002 4.34315 13.657 3 12.0002 3C10.7059 3 9.6031 3.81956 9.18237 4.96802L7.68575 3.47139C8.55427 1.99268 10.1613 1 12.0002 1C14.7616 1 17.0002 3.23858 17.0002 6V10C17.0002 10.8099 16.8076 11.5748 16.4658 12.2514Z" fill="currentColor"/>`,
  "more-2-fill": `<path d="M12 3C10.9 3 10 3.9 10 5C10 6.1 10.9 7 12 7C13.1 7 14 6.1 14 5C14 3.9 13.1 3 12 3ZM12 17C10.9 17 10 17.9 10 19C10 20.1 10.9 21 12 21C13.1 21 14 20.1 14 19C14 17.9 13.1 17 12 17ZM12 10C10.9 10 10 10.9 10 12C10 13.1 10.9 14 12 14C13.1 14 14 13.1 14 12C14 10.9 13.1 10 12 10Z" fill="currentColor"/>`,
  "more-2": `<path d="M12 3C11.175 3 10.5 3.675 10.5 4.5C10.5 5.325 11.175 6 12 6C12.825 6 13.5 5.325 13.5 4.5C13.5 3.675 12.825 3 12 3ZM12 18C11.175 18 10.5 18.675 10.5 19.5C10.5 20.325 11.175 21 12 21C12.825 21 13.5 20.325 13.5 19.5C13.5 18.675 12.825 18 12 18ZM12 10.5C11.175 10.5 10.5 11.175 10.5 12C10.5 12.825 11.175 13.5 12 13.5C12.825 13.5 13.5 12.825 13.5 12C13.5 11.175 12.825 10.5 12 10.5Z" fill="currentColor"/>`,
  "more": `<path d="M4.5 10.5C3.675 10.5 3 11.175 3 12C3 12.825 3.675 13.5 4.5 13.5C5.325 13.5 6 12.825 6 12C6 11.175 5.325 10.5 4.5 10.5ZM19.5 10.5C18.675 10.5 18 11.175 18 12C18 12.825 18.675 13.5 19.5 13.5C20.325 13.5 21 12.825 21 12C21 11.175 20.325 10.5 19.5 10.5ZM12 10.5C11.175 10.5 10.5 11.175 10.5 12C10.5 12.825 11.175 13.5 12 13.5C12.825 13.5 13.5 12.825 13.5 12C13.5 11.175 12.825 10.5 12 10.5Z" fill="currentColor"/>`,
@@ -168,6 +167,7 @@ export const iconSpriteData = {
  "node-tree": `<path d="M10 2C10.5523 2 11 2.44772 11 3V7C11 7.55228 10.5523 8 10 8H8V10H13V9C13 8.44772 13.4477 8 14 8H20C20.5523 8 21 8.44772 21 9V13C21 13.5523 20.5523 14 20 14H14C13.4477 14 13 13.5523 13 13V12H8V18H13V17C13 16.4477 13.4477 16 14 16H20C20.5523 16 21 16.4477 21 17V21C21 21.5523 20.5523 22 20 22H14C13.4477 22 13 21.5523 13 21V20H7C6.44772 20 6 19.5523 6 19V8H4C3.44772 8 3 7.55228 3 7V3C3 2.44772 3.44772 2 4 2H10ZM19 18H15V20H19V18ZM19 10H15V12H19V10ZM9 4H5V6H9V4Z" fill="currentColor"/>`,
  "notification-3": `<path d="M20 17H22V19H2V17H4V10C4 5.58172 7.58172 2 12 2C16.4183 2 20 5.58172 20 10V17ZM18 17V10C18 6.68629 15.3137 4 12 4C8.68629 4 6 6.68629 6 10V17H18ZM9 21H15V23H9V21Z" fill="currentColor"/>`,
  "palette": `<path d="M12 2C17.5222 2 22 5.97778 22 10.8889C22 13.9556 19.5111 16.4444 16.4444 16.4444H14.4778C13.5556 16.4444 12.8111 17.1889 12.8111 18.1111C12.8111 18.5333 12.9778 18.9222 13.2333 19.2111C13.5 19.5111 13.6667 19.9 13.6667 20.3333C13.6667 21.2556 12.9 22 12 22C6.47778 22 2 17.5222 2 12C2 6.47778 6.47778 2 12 2ZM10.8111 18.1111C10.8111 16.0843 12.451 14.4444 14.4778 14.4444H16.4444C18.4065 14.4444 20 12.851 20 10.8889C20 7.1392 16.4677 4 12 4C7.58235 4 4 7.58235 4 12C4 16.19 7.2226 19.6285 11.324 19.9718C10.9948 19.4168 10.8111 18.7761 10.8111 18.1111ZM7.5 12C6.67157 12 6 11.3284 6 10.5C6 9.67157 6.67157 9 7.5 9C8.32843 9 9 9.67157 9 10.5C9 11.3284 8.32843 12 7.5 12ZM16.5 12C15.6716 12 15 11.3284 15 10.5C15 9.67157 15.6716 9 16.5 9C17.3284 9 18 9.67157 18 10.5C18 11.3284 17.3284 12 16.5 12ZM12 9C11.1716 9 10.5 8.32843 10.5 7.5C10.5 6.67157 11.1716 6 12 6C12.8284 6 13.5 6.67157 13.5 7.5C13.5 8.32843 12.8284 9 12 9Z" fill="currentColor"/>`,
+  "pencil-ai-2": `<path d="M18.5293 15.3193C18.7058 14.8934 19.2942 14.8934 19.4707 15.3193L19.7236 15.9307C20.1556 16.9735 20.9615 17.8062 21.9746 18.2568L22.6914 18.5762C23.1022 18.7589 23.1022 19.3564 22.6914 19.5391L21.9326 19.877C20.9449 20.3163 20.1534 21.1194 19.7139 22.1279L19.4668 22.6934C19.2863 23.1075 18.7136 23.1075 18.5332 22.6934L18.2861 22.1279C17.8466 21.1194 17.0551 20.3163 16.0674 19.877L15.3076 19.5391C14.8974 19.3562 14.8974 18.759 15.3076 18.5762L16.0254 18.2568C17.0385 17.8062 17.8444 16.9735 18.2764 15.9307L18.5293 15.3193ZM16.4346 3.21193C16.8251 2.82141 17.4591 2.82141 17.8496 3.21193L20.6777 6.04103C21.0681 6.43157 21.0682 7.06464 20.6777 7.45509L7.24219 20.8897H3V16.6475L16.4346 3.21193ZM5 17.4756V18.8897H6.41406L15.7275 9.57618L14.3135 8.16212L5 17.4756ZM15.7275 6.74806L17.1426 8.16212L18.5566 6.74806L17.1426 5.334L15.7275 6.74806Z" fill="currentColor"/>`,
  "pencil-ai": `<path d="M16.4356 3.21188C16.8261 2.82185 17.4592 2.82157 17.8496 3.21188L20.6777 6.04099C21.0681 6.43152 21.0682 7.06457 20.6777 7.45505L7.2422 20.8896H3.00001V16.6475L16.4356 3.21188ZM5.00001 17.4756V18.8896H6.41407L15.7276 9.57615L14.3135 8.16208L5.00001 17.4756ZM4.5293 1.3193C4.70583 0.893505 5.29418 0.893508 5.47071 1.3193L5.72364 1.93063C6.15555 2.97342 6.96155 3.80613 7.97462 4.2568L8.69239 4.57614C9.10267 4.75896 9.10262 5.35616 8.69239 5.53903L7.93263 5.87692C6.94497 6.3162 6.15339 7.11943 5.71387 8.1279L5.4668 8.69334C5.28636 9.10747 4.71366 9.10747 4.53321 8.69334L4.28614 8.1279C3.84661 7.11943 3.05506 6.3162 2.06739 5.87692L1.30762 5.53903C0.897483 5.35617 0.897435 4.75896 1.30762 4.57614L2.0254 4.2568C3.03845 3.80614 3.84446 2.97344 4.27637 1.93063L4.5293 1.3193ZM15.7276 6.74802L17.1426 8.16208L18.5567 6.74802L17.1426 5.33395L15.7276 6.74802Z" fill="currentColor"/>`,
  "pencil": `<path d="M15.7279 9.57627L14.3137 8.16206L5 17.4758V18.89H6.41421L15.7279 9.57627ZM17.1421 8.16206L18.5563 6.74785L17.1421 5.33363L15.7279 6.74785L17.1421 8.16206ZM7.24264 20.89H3V16.6473L16.435 3.21231C16.8256 2.82179 17.4587 2.82179 17.8492 3.21231L20.6777 6.04074C21.0682 6.43126 21.0682 7.06443 20.6777 7.45495L7.24264 20.89Z" fill="currentColor"/>`,
  "picture-in-picture-2": `<path d="M21 3C21.5523 3 22 3.44772 22 4V11H20V5H4V19H10V21H3C2.44772 21 2 20.5523 2 20V4C2 3.44772 2.44772 3 3 3H21ZM21 13C21.5523 13 22 13.4477 22 14V20C22 20.5523 21.5523 21 21 21H13C12.4477 21 12 20.5523 12 20V14C12 13.4477 12.4477 13 13 13H21ZM20 15H14V19H20V15ZM6.70711 6.29289L8.95689 8.54289L11 6.5V12H5.5L7.54289 9.95689L5.29289 7.70711L6.70711 6.29289Z" fill="currentColor"/>`,
@@ -211,7 +211,6 @@ export const iconSpriteData = {
  "star-fill": `<path d="M12.0006 18.26L4.94715 22.2082L6.52248 14.2799L0.587891 8.7918L8.61493 7.84006L12.0006 0.5L15.3862 7.84006L23.4132 8.7918L17.4787 14.2799L19.054 22.2082L12.0006 18.26Z" fill="currentColor"/>`,
  "star": `<path d="M12.0006 18.26L4.94715 22.2082L6.52248 14.2799L0.587891 8.7918L8.61493 7.84006L12.0006 0.5L15.3862 7.84006L23.4132 8.7918L17.4787 14.2799L19.054 22.2082L12.0006 18.26ZM12.0006 15.968L16.2473 18.3451L15.2988 13.5717L18.8719 10.2674L14.039 9.69434L12.0006 5.27502L9.96214 9.69434L5.12921 10.2674L8.70231 13.5717L7.75383 18.3451L12.0006 15.968Z" fill="currentColor"/>`,
  "sticky-note": `<path d="M21 15L15 20.996L4.00221 21C3.4487 21 3 20.5551 3 20.0066V3.9934C3 3.44476 3.44495 3 3.9934 3H20.0066C20.5552 3 21 3.45576 21 4.00247V15ZM19 5H5V19H13V14C13 13.4872 13.386 13.0645 13.8834 13.0067L14 13L19 12.999V5ZM18.171 14.999L15 15V18.169L18.171 14.999Z" fill="currentColor"/>`,
-  "stop-circle": `<path d="M12 22C6.47715 22 2 17.5228 2 12C2 6.47715 6.47715 2 12 2C17.5228 2 22 6.47715 22 12C22 17.5228 17.5228 22 12 22ZM12 20C16.4183 20 20 16.4183 20 12C20 7.58172 16.4183 4 12 4C7.58172 4 4 7.58172 4 12C4 16.4183 7.58172 20 12 20ZM9 9H15V15H9V9Z" fill="currentColor"/>`,
  "stop": `<path d="M7 7V17H17V7H7ZM6 5H18C18.5523 5 19 5.44772 19 6V18C19 18.5523 18.5523 19 18 19H6C5.44772 19 5 18.5523 5 18V6C5 5.44772 5.44772 5 6 5Z" fill="currentColor"/>`,
  "subtract": `<path d="M5 11V13H19V11H5Z" fill="currentColor"/>`,
  "survey": `<path d="M17 2V4H20.0066C20.5552 4 21 4.44495 21 4.9934V21.0066C21 21.5552 20.5551 22 20.0066 22H3.9934C3.44476 22 3 21.5551 3 21.0066V4.9934C3 4.44476 3.44495 4 3.9934 4H7V2H17ZM7 6H5V20H19V6H17V8H7V6ZM9 16V18H7V16H9ZM9 13V15H7V13H9ZM9 10V12H7V10H9ZM15 4H9V6H15V4Z" fill="currentColor"/>`,
@@ -228,7 +227,6 @@ export const iconSpriteData = {
  "unpin": `<path d="M20.9701 17.1716 19.5559 18.5858 16.0214 15.0513 15.9476 15.1251 15.2405 18.6606 13.8263 20.0748 9.58369 15.8322 4.63394 20.7819 3.21973 19.3677 8.16947 14.418 3.92683 10.1753 5.34105 8.7611 8.87658 8.05399 8.95029 7.98028 5.41373 4.44371 6.82794 3.0295 20.9701 17.1716ZM10.3645 9.39449 9.86261 9.8964 7.04072 10.4608 13.5409 16.9609 14.1052 14.139 14.6071 13.6371 10.3645 9.39449ZM18.7761 9.46821 17.4356 10.8087 18.8498 12.2229 20.1903 10.8824 20.8974 11.5895 22.3116 10.1753 13.8263 1.69003 12.4121 3.10425 13.1192 3.81135 11.7787 5.15185 13.1929 6.56607 14.5334 5.22557 18.7761 9.46821Z" fill="currentColor"/>`,
  "user-3": `<path d="M20 22H18V20C18 18.3431 16.6569 17 15 17H9C7.34315 17 6 18.3431 6 20V22H4V20C4 17.2386 6.23858 15 9 15H15C17.7614 15 20 17.2386 20 20V22ZM12 13C8.68629 13 6 10.3137 6 7C6 3.68629 8.68629 1 12 1C15.3137 1 18 3.68629 18 7C18 10.3137 15.3137 13 12 13ZM12 11C14.2091 11 16 9.20914 16 7C16 4.79086 14.2091 3 12 3C9.79086 3 8 4.79086 8 7C8 9.20914 9.79086 11 12 11Z" fill="currentColor"/>`,
  "user": `<path d="M4 22C4 17.5817 7.58172 14 12 14C16.4183 14 20 17.5817 20 22H18C18 18.6863 15.3137 16 12 16C8.68629 16 6 18.6863 6 22H4ZM12 13C8.685 13 6 10.315 6 7C6 3.685 8.685 1 12 1C15.315 1 18 3.685 18 7C18 10.315 15.315 13 12 13ZM12 11C14.21 11 16 9.21 16 7C16 4.79 14.21 3 12 3C9.79 3 8 4.79 8 7C8 9.21 9.79 11 12 11Z" fill="currentColor"/>`,
-  "voice-recognition": `<path d="M4.99805 15V19H8.99805V21H2.99805V15H4.99805ZM20.998 15V21H14.998V19H18.998V15H20.998ZM12.998 6V18H10.998V6H12.998ZM8.99805 9V15H6.99805V9H8.99805ZM16.998 9V15H14.998V9H16.998ZM8.99805 3V5H4.99805V9H2.99805V3H8.99805ZM20.998 3V9H18.998V5H14.998V3H20.998Z" fill="currentColor"/>`,
  "volume-up": `<path d="M6.60282 10.0001L10 7.22056V16.7796L6.60282 14.0001H3V10.0001H6.60282ZM2 16.0001H5.88889L11.1834 20.3319C11.2727 20.405 11.3846 20.4449 11.5 20.4449C11.7761 20.4449 12 20.2211 12 19.9449V4.05519C12 3.93977 11.9601 3.8279 11.887 3.73857C11.7121 3.52485 11.3971 3.49335 11.1834 3.66821L5.88889 8.00007H2C1.44772 8.00007 1 8.44778 1 9.00007V15.0001C1 15.5524 1.44772 16.0001 2 16.0001ZM23 12C23 15.292 21.5539 18.2463 19.2622 20.2622L17.8445 18.8444C19.7758 17.1937 21 14.7398 21 12C21 9.26016 19.7758 6.80629 17.8445 5.15557L19.2622 3.73779C21.5539 5.75368 23 8.70795 23 12ZM18 12C18 10.0883 17.106 8.38548 15.7133 7.28673L14.2842 8.71584C15.3213 9.43855 16 10.64 16 12C16 13.36 15.3213 14.5614 14.2842 15.2841L15.7133 16.7132C17.106 15.6145 18 13.9116 18 12Z" fill="currentColor"/>`,
  "window": `<path d="M21 3C21.5523 3 22 3.44772 22 4V20C22 20.5523 21.5523 21 21 21H3C2.44772 21 2 20.5523 2 20V4C2 3.44772 2.44772 3 3 3H21ZM20 11H4V19H20V11ZM20 5H4V9H20V5ZM11 6V8H9V6H11ZM7 6V8H5V6H7Z" fill="currentColor"/>`,
 } as const satisfies Record<string, string>;
@@ -39,6 +39,9 @@ export const DefaultsSettings: React.FC = () => {
  const [defaultModel, setDefaultModel] = React.useState<string | undefined>();
  const [defaultVariant, setDefaultVariant] = React.useState<string | undefined>();
  const [defaultAgent, setDefaultAgent] = React.useState<string | undefined>();
+  const [smallModelUseDefault, setSmallModelUseDefault] = React.useState(true);
+  const [smallModelOverride, setSmallModelOverride] = React.useState<string | undefined>();
+  const [smallModelProviders, setSmallModelProviders] = React.useState<string[] | undefined>();
  const [isLoading, setIsLoading] = React.useState(true);

  const parsedModel = React.useMemo(() => getDisplayModel(defaultModel), [defaultModel]);
@@ -50,6 +53,8 @@ export const DefaultsSettings: React.FC = () => {
          defaultModel?: string;
          defaultVariant?: string;
          defaultAgent?: string;
+          smallModelUseDefault?: boolean;
+          smallModelOverride?: string;
        } | null = null;

        if (!data) {
@@ -59,13 +64,16 @@ export const DefaultsSettings: React.FC = () => {
              const result = await runtimeSettings.load();
              const settings = result?.settings;
              if (settings) {
+                const raw = settings as Record<string, unknown>;
                data = {
                  defaultModel: typeof settings.defaultModel === 'string' ? settings.defaultModel : undefined,
                  defaultVariant:
-                    typeof (settings as Record<string, unknown>).defaultVariant === 'string'
-                      ? ((settings as Record<string, unknown>).defaultVariant as string)
+                    typeof raw.defaultVariant === 'string'
+                      ? (raw.defaultVariant as string)
                      : undefined,
                  defaultAgent: typeof settings.defaultAgent === 'string' ? settings.defaultAgent : undefined,
+                  smallModelUseDefault: typeof raw.smallModelUseDefault === 'boolean' ? raw.smallModelUseDefault : undefined,
+                  smallModelOverride: typeof raw.smallModelOverride === 'string' ? raw.smallModelOverride : undefined,
                };
              }
            } catch {
@@ -101,6 +109,10 @@ export const DefaultsSettings: React.FC = () => {
          if (model !== undefined) setDefaultModel(model);
          if (variant !== undefined) setDefaultVariant(variant);
          if (agent !== undefined) setDefaultAgent(agent);
+          if (typeof data.smallModelUseDefault === 'boolean') setSmallModelUseDefault(data.smallModelUseDefault);
+          if (typeof data.smallModelOverride === 'string' && data.smallModelOverride.trim()) {
+            setSmallModelOverride(data.smallModelOverride.trim());
+          }
        }
      } catch (error) {
        console.warn('Failed to load defaults settings:', error);
@@ -189,6 +201,53 @@ export const DefaultsSettings: React.FC = () => {
    [setAgent, setSettingsDefaultAgent]
  );

+  const handleSmallModelUseDefaultChange = React.useCallback(
+    async (useDefault: boolean) => {
+      setSmallModelUseDefault(useDefault);
+      try {
+        await updateDesktopSettings({ smallModelUseDefault: useDefault });
+      } catch (error) {
+        console.warn('Failed to save small model preference:', error);
+      }
+    },
+    []
+  );
+
+  const handleSmallModelOverrideChange = React.useCallback(
+    async (providerId: string, modelId: string) => {
+      const newValue = providerId && modelId ? `${providerId}/${modelId}` : undefined;
+      setSmallModelOverride(newValue);
+      try {
+        await updateDesktopSettings({ smallModelOverride: newValue ?? '' });
+      } catch (error) {
+        console.warn('Failed to save small model override:', error);
+      }
+    },
+    []
+  );
+
+  const parsedSmallModel = React.useMemo(() => getDisplayModel(smallModelOverride), [smallModelOverride]);
+
+  React.useEffect(() => {
+    if (smallModelUseDefault || smallModelProviders !== undefined) return;
+    let cancelled = false;
+    (async () => {
+      try {
+        const response = await runtimeFetch('/api/small-model', { method: 'GET', headers: { Accept: 'application/json' } });
+        if (!response.ok) return;
+        const payload = await response.json().catch(() => null) as { authenticatedProviders?: unknown } | null;
+        if (!cancelled && Array.isArray(payload?.authenticatedProviders)) {
+          setSmallModelProviders(payload.authenticatedProviders.filter((id): id is string => typeof id === 'string'));
+        }
+      } catch {
+        // leave undefined — picker falls back to showing all providers
+      }
+    })();
+    return () => {
+      cancelled = true;
+    };
+  }, [smallModelUseDefault, smallModelProviders]);
+
  const availableVariants = React.useMemo(() => {
    if (!parsedModel.providerId || !parsedModel.modelId) return [];
    const provider = providers.find((p) => p.id === parsedModel.providerId);
@@ -305,6 +364,56 @@ export const DefaultsSettings: React.FC = () => {
        </div>

      </section>
+
+      <div className="mt-6 mb-0.5 px-1">
+        <div className="flex items-center gap-2">
+          <h3 className="typography-ui-header font-medium text-foreground">{t('settings.openchamber.defaults.smallModel.title')}</h3>
+        </div>
+      </div>
+
+      <section className="px-2 pb-2 pt-0 space-y-0">
+        <div className="mt-0 mb-1 typography-meta text-muted-foreground">
+          {t('settings.openchamber.defaults.smallModel.description')}
+        </div>
+
+        <div
+          data-settings-item="sessions.small-model"
+          className="group flex cursor-pointer items-center gap-2 py-1"
+          role="button"
+          tabIndex={0}
+          aria-pressed={smallModelUseDefault}
+          onClick={() => void handleSmallModelUseDefaultChange(!smallModelUseDefault)}
+          onKeyDown={(event) => {
+            if (event.key === ' ' || event.key === 'Enter') {
+              event.preventDefault();
+              void handleSmallModelUseDefaultChange(!smallModelUseDefault);
+            }
+          }}
+        >
+          <Checkbox
+            checked={smallModelUseDefault}
+            onChange={(checked) => void handleSmallModelUseDefaultChange(checked)}
+            ariaLabel={t('settings.openchamber.defaults.smallModel.useDefaultAria')}
+          />
+          <span className="typography-ui-label text-foreground">{t('settings.openchamber.defaults.smallModel.useDefault')}</span>
+        </div>
+
+        {!smallModelUseDefault ? (
+          <div className="flex flex-col gap-2 py-1 sm:flex-row sm:items-center sm:gap-8">
+            <div className="flex min-w-0 flex-col sm:w-56 shrink-0">
+              <span className="typography-ui-label text-foreground">{t('settings.openchamber.defaults.smallModel.overrideModel')}</span>
+            </div>
+            <div className="flex min-w-0 flex-1 items-center gap-2 sm:w-fit sm:flex-initial">
+              <ModelSelector
+                providerId={parsedSmallModel.providerId}
+                modelId={parsedSmallModel.modelId}
+                onChange={handleSmallModelOverrideChange}
+                allowedProviderIds={smallModelProviders}
+              />
+            </div>
+          </div>
+        ) : null}
+      </section>
    </div>
  );
 };
@@ -144,7 +144,7 @@ const VisualSectionContent: React.FC = () => {

 // Chat section: User message rendering, Diff layout, Mobile status bar, Show reasoning traces, Follow-up behavior, Persist draft
 const ChatSectionContent: React.FC = () => {
-    return <OpenChamberVisualSettings visibleSettings={['chatRenderMode', 'messageTransport', 'activityRenderMode', 'userMessageRendering', 'mermaidRendering', 'reasoning', 'showToolFileIcons', 'showTurnChangedFiles', 'expandedTools', 'collapsibleUserMessages', 'stickyUserHeader', 'wideChatLayout', 'splitAssistantMessageActions', 'diffLayout', 'dotfiles', 'fileViewerPreview', 'followUpBehavior', 'persistDraft', 'inputSpellcheck']} />;
+    return <OpenChamberVisualSettings visibleSettings={['sessionAssist', 'chatRenderMode', 'messageTransport', 'activityRenderMode', 'userMessageRendering', 'mermaidRendering', 'reasoning', 'showToolFileIcons', 'showTurnChangedFiles', 'expandedTools', 'collapsibleUserMessages', 'stickyUserHeader', 'wideChatLayout', 'splitAssistantMessageActions', 'diffLayout', 'dotfiles', 'fileViewerPreview', 'followUpBehavior', 'persistDraft', 'inputSpellcheck']} />;
 };

 // Sessions section: Default model & agent, Session retention
@@ -245,7 +245,7 @@ const normalizeUserMessageRenderingMode = (mode: unknown): 'markdown' | 'plain'
    return mode === 'markdown' ? 'markdown' : 'plain';
 };

-type VisibleSetting = 'theme' | 'pwaInstallName' | 'pwaOrientation' | 'mobileKeyboardMode' | 'timeFormat' | 'weekStart' | 'fontSize' | 'terminalFontSize' | 'spacing' | 'inputBarOffset' | 'mermaidRendering' | 'userMessageRendering' | 'chatRenderMode' | 'messageTransport' | 'activityRenderMode' | 'collapsibleUserMessages' | 'stickyUserHeader' | 'wideChatLayout' | 'splitAssistantMessageActions' | 'diffLayout' | 'mobileStatusBar' | 'dotfiles' | 'fileViewerPreview' | 'reasoning' | 'showToolFileIcons' | 'showTurnChangedFiles' | 'expandedTools' | 'followUpBehavior' | 'terminalQuickKeys' | 'fileEditorKeymap' | 'persistDraft' | 'inputSpellcheck' | 'reportUsage' | 'expandedEditorToolbar';
+type VisibleSetting = 'sessionAssist' | 'theme' | 'pwaInstallName' | 'pwaOrientation' | 'mobileKeyboardMode' | 'timeFormat' | 'weekStart' | 'fontSize' | 'terminalFontSize' | 'spacing' | 'inputBarOffset' | 'mermaidRendering' | 'userMessageRendering' | 'chatRenderMode' | 'messageTransport' | 'activityRenderMode' | 'collapsibleUserMessages' | 'stickyUserHeader' | 'wideChatLayout' | 'splitAssistantMessageActions' | 'diffLayout' | 'mobileStatusBar' | 'dotfiles' | 'fileViewerPreview' | 'reasoning' | 'showToolFileIcons' | 'showTurnChangedFiles' | 'expandedTools' | 'followUpBehavior' | 'terminalQuickKeys' | 'fileEditorKeymap' | 'persistDraft' | 'inputSpellcheck' | 'reportUsage' | 'expandedEditorToolbar';

 interface OpenChamberVisualSettingsProps {
    /** Which settings to show. If undefined, shows all. */
@@ -259,6 +259,8 @@ export const OpenChamberVisualSettings: React.FC<OpenChamberVisualSettingsProps>
    const { browserTab } = usePwaDetection();
    const directoryShowHidden = useDirectoryShowHidden();
    const showReasoningTraces = useUIStore(state => state.showReasoningTraces);
+    const sessionAssistEnabled = useUIStore(state => state.sessionAssistEnabled);
+    const setSessionAssistEnabled = useUIStore(state => state.setSessionAssistEnabled);
    const setShowReasoningTraces = useUIStore(state => state.setShowReasoningTraces);
    const collapsibleThinkingBlocks = useUIStore(state => state.collapsibleThinkingBlocks);
    const setCollapsibleThinkingBlocks = useUIStore(state => state.setCollapsibleThinkingBlocks);
@@ -1775,8 +1777,31 @@ export const OpenChamberVisualSettings: React.FC<OpenChamberVisualSettingsProps>
                                </div>
                            )}

-                            {(shouldShow('collapsibleUserMessages') || shouldShow('stickyUserHeader') || shouldShow('wideChatLayout') || shouldShow('splitAssistantMessageActions') || shouldShow('dotfiles') || shouldShow('fileViewerPreview') || shouldShow('persistDraft') || shouldShow('showToolFileIcons') || shouldShow('showTurnChangedFiles') || (!isMobile && shouldShow('inputSpellcheck')) || shouldShow('reasoning')) && (
+                            {(shouldShow('sessionAssist') || shouldShow('collapsibleUserMessages') || shouldShow('stickyUserHeader') || shouldShow('wideChatLayout') || shouldShow('splitAssistantMessageActions') || shouldShow('dotfiles') || shouldShow('fileViewerPreview') || shouldShow('persistDraft') || shouldShow('showToolFileIcons') || shouldShow('showTurnChangedFiles') || (!isMobile && shouldShow('inputSpellcheck')) || shouldShow('reasoning')) && (
                                <section className="p-2 space-y-0.5">
+                                    {shouldShow('sessionAssist') && (
+                                        <div
+                                            data-settings-item="chat.session-assist"
+                                            className="group flex cursor-pointer items-center gap-2 py-0.5"
+                                            role="button"
+                                            tabIndex={0}
+                                            aria-pressed={sessionAssistEnabled}
+                                            onClick={() => setSessionAssistEnabled(!sessionAssistEnabled)}
+                                            onKeyDown={(event) => {
+                                                if (event.key === ' ' || event.key === 'Enter') {
+                                                    event.preventDefault();
+                                                    setSessionAssistEnabled(!sessionAssistEnabled);
+                                                }
+                                            }}
+                                        >
+                                            <Checkbox
+                                                checked={sessionAssistEnabled}
+                                                onChange={setSessionAssistEnabled}
+                                                ariaLabel={t('settings.openchamber.visual.field.sessionAssistAria')}
+                                            />
+                                            <span className="typography-ui-label text-foreground">{t('settings.openchamber.visual.field.sessionAssist')}</span>
+                                        </div>
+                                    )}
                                    {shouldShow('reasoning') && (
                                        <div
                                            data-settings-item="chat.reasoning-traces"
@@ -1133,6 +1133,15 @@ export const VoiceSettings: React.FC = () => {
                                        >
                                            {t('settings.voice.page.field.ttsInputModeRaw')}
                                        </Button>
+                                        <Button
+                                            variant="chip"
+                                            size="xs"
+                                            aria-pressed={ttsInputMode === 'summarized'}
+                                            onClick={() => setTtsInputMode('summarized')}
+                                            className="!font-normal"
+                                        >
+                                            {t('settings.voice.page.field.ttsInputModeSummarized')}
+                                        </Button>
                                    </div>
                                </div>
                            </div>