feat: Add comprehensive system prompt management system.

package.json

@@ -101,19 +101,19 @@
     "@orama/orama": "^3.0.0-rc-2",
     "@radix-ui/react-checkbox": "^1.1.3",
     "@radix-ui/react-collapsible": "^1.1.2",
-    "@radix-ui/react-dialog": "^1.1.3",
+    "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-dropdown-menu": "^2.1.4",
-    "@radix-ui/react-label": "^2.1.0",
+    "@radix-ui/react-label": "^2.1.7",
     "@radix-ui/react-popover": "^1.1.15",
     "@radix-ui/react-progress": "^1.1.7",
     "@radix-ui/react-scroll-area": "^1.2.10",
-    "@radix-ui/react-select": "^2.1.2",
+    "@radix-ui/react-select": "^2.2.6",
     "@radix-ui/react-separator": "^1.1.7",
     "@radix-ui/react-slider": "^1.3.5",
     "@radix-ui/react-slot": "^1.2.3",
     "@radix-ui/react-switch": "^1.1.1",
     "@radix-ui/react-tabs": "^1.1.3",
-    "@radix-ui/react-tooltip": "^1.2.7",
+    "@radix-ui/react-tooltip": "^1.2.8",
     "@tabler/icons-react": "^2.14.0",
     "async-mutex": "^0.5.0",
     "axios": "^1.3.4",

src/aiParams.ts

@@ -2,7 +2,7 @@ import { ChainType } from "@/chainFactory";
 import { BaseChatModel } from "@langchain/core/language_models/chat_models";
 import { ChatPromptTemplate } from "@langchain/core/prompts";
 
-import { ModelCapability } from "@/constants";
+import { ModelCapability, ReasoningEffort, Verbosity } from "@/constants";
 import { settingsAtom, settingsStore } from "@/settings/model";
 import { SelectedTextContext } from "@/types/message";
 import { atom, useAtom } from "jotai";
@@ -150,8 +150,8 @@ export interface CustomModel {
   bedrockRegion?: string;
 
   // OpenAI GPT-5 and O-series specific fields
-  reasoningEffort?: "minimal" | "low" | "medium" | "high";
-  verbosity?: "low" | "medium" | "high";
+  reasoningEffort?: ReasoningEffort;
+  verbosity?: Verbosity;
 }
 
 export function setModelKey(modelKey: string) {

src/components/Chat.tsx

@@ -8,6 +8,7 @@ import {
   useModelKey,
   useSelectedTextContexts,
 } from "@/aiParams";
+import { resetSessionSystemPromptSettings } from "@/system-prompts";
 import { ChainType } from "@/chainFactory";
 import { useProjectContextStatus } from "@/hooks/useProjectContextStatus";
 import { logInfo, logError } from "@/logger";
@@ -581,6 +582,9 @@ const ChatInternal: React.FC<ChatProps & { chatInput: ReturnType<typeof useChatI
     // Clear messages through the new architecture
     chatUIState.clearMessages();
 
+    // Reset all session-level system prompt settings to global defaults
+    resetSessionSystemPromptSettings();
+
     // Additional UI state reset specific to this component
     safeSet.setCurrentAiMessage("");
     setContextNotes([]);
@@ -647,6 +651,8 @@ const ChatInternal: React.FC<ChatProps & { chatInput: ReturnType<typeof useChatI
     async (id: string) => {
       try {
         await plugin.loadChatById(id);
+        // Reset all session-level system prompt settings to global defaults when loading a chat
+        resetSessionSystemPromptSettings();
       } catch (error) {
         logError("Error loading chat:", error);
         new Notice("Failed to load chat.");

src/components/chat-components/ChatControls.tsx

@@ -33,6 +33,7 @@ import {
   ChatHistoryPopover,
 } from "@/components/chat-components/ChatHistoryPopover";
 import { TokenCounter } from "./TokenCounter";
+import { ChatSettingsPopover } from "@/components/chat-components/ChatSettingsPopover";
 
 export async function refreshVaultIndex() {
   try {
@@ -300,6 +301,7 @@ export function ChatControls({
           </TooltipTrigger>
           <TooltipContent>New Chat</TooltipContent>
         </Tooltip>
+        {selectedChain !== ChainType.PROJECT_CHAIN && <ChatSettingsPopover />}
         {!settings.autosaveChat && (
           <Tooltip>
             <TooltipTrigger asChild>