chat: rename usePiChat → useChat, PiMonoInner → AgenticTaskRunner

Frontend de-Pi (Stage 3). Renames the chat hook usePiChat → useChat (+ UsePiChatType
→ UseChatType, file moved to hooks/useChat.ts) across all consumers, and renames
the TaskRunnerModal agentic runner PiMonoInner → AgenticTaskRunner (dropping the
dead defaultProvider === 'pi' check → always the Claude default). Pure rename, no
behavior change. The WS route stays /api/pi/chat/ws until Stage 4.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/apps/officer-web/Screens/Dashboard/CapabilityPage.tsx

@@ -9,7 +9,7 @@ import { Button } from '@/components/ui/button';
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from '@/components/ui/dialog';
 import { useClient } from 'hooks/useClient';
 import { Card } from '@/components/Card';
-import { usePiChat, EmbeddableChat } from 'officerdev';
+import { useChat, EmbeddableChat } from 'officerdev';
 type CapabilitySummary = {
   dirName: string;
   name: string;
@@ -279,7 +279,7 @@ export const CapabilityChat = ({
     ? (description ?? `Help me create the content for this new ${kind} file`)
     : `Help me understand and improve this ${kind} file`;
 
-  const pi = usePiChat(undefined, undefined, { replaceUrl: false });
+  const pi = useChat(undefined, undefined, { replaceUrl: false });
 
   const onResponseEndRef = useRef(onResponseEnd);
   onResponseEndRef.current = onResponseEnd;

src/workspaces/officerdev/HOOK_CONVENTIONS.md

@@ -20,12 +20,12 @@ import { useClient } from 'hooks/useClient';
 
 const DEBOUNCE_MS = 1000;
 
-export function usePiChat(sessionId?: string, model?: string | null) {
+export function useChat(sessionId?: string, model?: string | null) {
   // ...
   return { messages, sendPrompt, stopGeneration };
 }
 
-export type UsePiChatType = ReturnType<typeof usePiChat>;
+export type UseChatType = ReturnType<typeof useChat>;
 
 // ── Types ──
 
@@ -46,7 +46,7 @@ Hooks that are self-contained (one function, a few types, maybe some helpers) st
 ```
 hooks/
 ├── useFilesAPI.ts
-├── usePiChat.ts
+├── useChat.ts
 └── index.ts
 ```
 
@@ -113,7 +113,7 @@ The root `hooks/index.ts` re-exports everything. Each entry is a single `export
 export * from './appRegistry';
 export * from './useFilesAPI';
 export * from './useFileViewerPanels';
-export * from './usePiChat';
+export * from './useChat';
 ```
 
 When adding a new hook, add one line here. Order alphabetically.

src/workspaces/officerdev/src/apps/Chat/ChatPanelWrapper.tsx

@@ -2,7 +2,7 @@ import { useCallback, useEffect, useRef, useState } from 'react';
 import { useWorkspace } from '../../components/Workspace';
 import { usePanelChannel } from 'hooks/usePanelChannel';
 import { useSavedSessions, messagesToTranscript, type RawMessage } from 'state/useSavedSessions';
-import { usePiChat } from '../../hooks/usePiChat';
+import { useChat } from '../../hooks/useChat';
 import { EmbeddableChat } from './EmbeddableChat';
 
 import type { ChatSessionSelection } from './ChatHeader';
@@ -56,7 +56,7 @@ const ChatPanelInner = ({
     [onTurnComplete, updateSessionMessages],
   );
 
-  const chat = usePiChat(sessionId, model, {
+  const chat = useChat(sessionId, model, {
     replaceUrl: false,
     projectScoped: scoped,
     onTurnComplete: handleTurnComplete,

src/workspaces/officerdev/src/apps/Chat/EmbeddableChat/EmbeddableChat.tsx

@@ -1,4 +1,4 @@
-import type { UsePiChatType } from '../../../hooks/usePiChat';
+import type { UseChatType } from '../../../hooks/useChat';
 import { useEmbeddableChat } from './useEmbeddableChat';
 import { MessageList } from '../components/MessageList';
 import { InputArea } from '../components/InputArea';
@@ -19,7 +19,7 @@ type EmbeddableChatProps = {
   sandboxed?: boolean;
   replaceUrl?: boolean;
   autoSend?: boolean;
-  chat?: UsePiChatType;
+  chat?: UseChatType;
   context?: string;
   contextId?: string;
   onMessageComplete?: () => void;

src/workspaces/officerdev/src/apps/Chat/EmbeddableChat/useEmbeddableChat.ts

@@ -1,7 +1,7 @@
 import type { KeyboardEvent } from 'react';
 import { useState, useRef, useEffect } from 'react';
 import { useUserVisibleModels } from 'state/useModels';
-import { usePiChat, type UsePiChatType } from '../../../hooks/usePiChat';
+import { useChat, type UseChatType } from '../../../hooks/useChat';
 import { useAttachments } from '../useAttachments';
 import { useSlashCommands } from '../useSlashCommands';
 
@@ -20,7 +20,7 @@ type UseEmbeddableChatParams = {
   sandboxed?: boolean;
   replaceUrl?: boolean;
   autoSend?: boolean;
-  chat?: UsePiChatType;
+  chat?: UseChatType;
   context?: string;
   contextId?: string;
 };
@@ -28,7 +28,7 @@ type UseEmbeddableChatParams = {
 export function useEmbeddableChat(params: UseEmbeddableChatParams, onMessageComplete?: () => void) {
   const { initialMessage, defaultInput = '', promptPrefix, cwd, sandboxed, autoSend = false, chat: externalChat } = params;
 
-  const internalChat = usePiChat(params.sessionId, params.initialModel, { replaceUrl: params.replaceUrl ?? false, context: params.context, contextId: params.contextId });
+  const internalChat = useChat(params.sessionId, params.initialModel, { replaceUrl: params.replaceUrl ?? false, context: params.context, contextId: params.contextId });
   const chat = externalChat ?? internalChat;
 
   const {

src/workspaces/officerdev/src/apps/Chat/index.ts

@@ -14,7 +14,7 @@ export { AttachmentList } from './components/AttachmentList';
 export { AttachButton } from './components/AttachButton';
 export { WebpageDialog } from './components/WebpageDialog';
 export { EmbeddableChat, type UseEmbeddableChatType } from './EmbeddableChat';
-export { usePiChat, type UsePiChatType } from '../../hooks/usePiChat';
+export { useChat, type UseChatType } from '../../hooks/useChat';
 export { ChatList } from './ChatList';
 export { useSlashCommands } from './useSlashCommands';
 export { useAttachments, type UseAttachmentsType } from './useAttachments';

src/workspaces/officerdev/src/apps/ChatHistory/ChatDetailPanel.tsx

@@ -5,7 +5,7 @@ import { usePanelChannel } from 'hooks/usePanelChannel';
 import { useAuth } from 'hooks/useAuth';
 import { useSavedSessions } from 'state/useSavedSessions';
 import { useClaudeSessions } from 'state/useClaudeSessions';
-import { usePiChat, EmbeddableChat } from '../Chat';
+import { useChat, EmbeddableChat } from '../Chat';
 import type { ChatMessage } from '../Chat/types';
 
 export type SelectedSession = {
@@ -113,7 +113,7 @@ function NewChat({ resumeSummary, resumeSessionId, initialMessages, savedId: ini
 
   // context 'chat' tells the backend to run this session from the dedicated claude_sessions cwd, so
   // its transcript lands in Claude's own store as an isolated project group (source of truth).
-  const chat = usePiChat(undefined, locationState?.model, { resumeSummary, resumeSessionId, initialMessages, onTurnComplete, context: 'chat' });
+  const chat = useChat(undefined, locationState?.model, { resumeSummary, resumeSessionId, initialMessages, onTurnComplete, context: 'chat' });
   chatSessionRef.current = chat.sessionId;
 
   const isSaved = savedId != null;

src/workspaces/officerdev/src/apps/FileBrowser/FileBrowserApp/components/TaskRunnerModal.tsx

@@ -5,7 +5,7 @@ import { Dialog, DialogOverlay, DialogPortal } from '@/components/ui/dialog';
 import * as DialogPrimitive from '@radix-ui/react-dialog';
 import { cardStyle } from '@/components/Card';
 import type { TaskInfo, ChatMessage } from '../../../Chat';
-import { usePiChat, MessageBubble, StreamingBubble, ModelSelector } from '../../../Chat';
+import { useChat, MessageBubble, StreamingBubble, ModelSelector } from '../../../Chat';
 import { useSettings } from 'state/useSettings';
 import { useUserVisibleModels } from 'state/useModels';
 import { useClient } from 'hooks/useClient';
@@ -40,7 +40,7 @@ const playDing = () => {
 
 type Phase = 'ready' | 'running' | 'done';
 
-type PiMonoInnerProps = {
+type AgenticTaskRunnerProps = {
   taskDirName: string;
   defaultInput: string;
   cwd: { root?: string; path: string };
@@ -50,9 +50,9 @@ type PiMonoInnerProps = {
   context: Record<string, string>;
 };
 
-const PiMonoInner = ({ taskDirName, defaultInput, cwd, initialModel, taskInfo, sandboxed, context }: PiMonoInnerProps) => {
+const AgenticTaskRunner = ({ taskDirName, defaultInput, cwd, initialModel, taskInfo, sandboxed, context }: AgenticTaskRunnerProps) => {
   const [phase, setPhase] = useState<Phase>('ready');
-  const chat = usePiChat(undefined, initialModel, { replaceUrl: false, taskInfo });
+  const chat = useChat(undefined, initialModel, { replaceUrl: false, taskInfo });
   const availableModels = useUserVisibleModels();
   const client = useClient();
   const [inputDefs, setInputDefs] = useState<Record<string, TaskInputDef> | null>(null);
@@ -1513,12 +1513,12 @@ export const TaskRunnerModal = ({ open, onOpenChange, task, entryName, entryFull
               onClose={() => onOpenChange(false)}
             />
           ) : (
-            <PiMonoInner
-              key="pi"
+            <AgenticTaskRunner
+              key="agentic"
               taskDirName={task.dirName}
               defaultInput={defaultInput}
               cwd={entryType === 'directory' && entryName ? { ...cwd, path: cwd.path ? `${cwd.path}/${entryName}` : entryName } : cwd}
-              initialModel={taskSettings.defaultProvider === 'pi' ? taskSettings.defaultModel : null}
+              initialModel={null}
               taskInfo={taskInfo}
               sandboxed={sandboxed}
               context={autofillContext}

src/workspaces/officerdev/src/hooks/index.ts

@@ -1,4 +1,4 @@
 export * from './useFilesAPI';
 export * from './useFileViewerPanels';
-export * from './usePiChat';
+export * from './useChat';
 export * from './useDock';

src/workspaces/officerdev/src/hooks/useChat.ts

@@ -25,7 +25,7 @@ type UsePiChatOptions = {
   onTurnComplete?: (hadToolCalls: boolean) => void;
 };
 
-export function usePiChat(initialSessionId?: string, initialModel?: string | null, options?: UsePiChatOptions) {
+export function useChat(initialSessionId?: string, initialModel?: string | null, options?: UsePiChatOptions) {
   const {
     replaceUrl = true,
     storage,
@@ -366,4 +366,4 @@ export function usePiChat(initialSessionId?: string, initialModel?: string | nul
   };
 }
 
-export type UsePiChatType = ReturnType<typeof usePiChat>;
+export type UseChatType = ReturnType<typeof useChat>;

src/workspaces/officerdev/src/index.ts

@@ -16,13 +16,13 @@ export {
   AttachButton,
   WebpageDialog,
   EmbeddableChat,
-  usePiChat,
+  useChat,
   ChatList,
   useSlashCommands,
   useAttachments,
   useAudioRecording,
 } from './apps/Chat';
-export type { UseEmbeddableChatType, UsePiChatType, UseAttachmentsType, UseAudioRecordingType } from './apps/Chat';
+export type { UseEmbeddableChatType, UseChatType, UseAttachmentsType, UseAudioRecordingType } from './apps/Chat';
 export * from './apps/Chat/types';
 export { SessionBar, SessionList, ChatDetailPanel } from './apps/ChatHistory';
 export type { SelectedSession } from './apps/ChatHistory';