name a live opencode row from the prompt until opencode names it

Same shape as the claude side, which has never shown a live row without a name.

OpenCode titles a session from the conversation and does it well, but asynchronously — so
for the whole time a turn is RUNNING, which is exactly what /chat/live shows, the session is
still called "New session - <ISO>". Its own title wins the moment it exists; until then the
row falls back to the prompt that started the session.

Kept per sessionKey, first turn only, so it stays the name of the conversation rather than
following whatever was asked most recently. Dropped with the session id it sits beside.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/servers/api/chat/chat.ts

@@ -21,7 +21,7 @@ import {
   renameOpenCodeSession,
   isOpenCodeSessionId,
 } from './opencode-sessions';
-import { getOpenCodeSession } from './opencode/state';
+import { getOpenCodePrompt, getOpenCodeSession } from './opencode/state';
 import { listChatModels } from './list-models';
 import { logger } from './logger';
 import { readSttConfig } from '../server-settings/stt';
@@ -150,11 +150,12 @@ chatRouter.get('/live', async (ctx) => {
       isGenerating: true,
       pendingTasks: 0,
       harness: 'opencode' as const,
-      // Null for the first seconds of a turn (the id is only known once the subprocess prints it), and
-      // null again while OpenCode still calls the session `New session - <ISO>` — `listOpenCodeSessions`
-      // normalises that placeholder to `(untitled)`, and a live row is better blank than named after a
-      // timestamp. The real title arrives on a later poll, because OpenCode writes it asynchronously.
-      title: meta?.title && meta.title !== '(untitled)' ? meta.title : null,
+      // OpenCode's own title wins as soon as it exists — it is derived from the conversation and is
+      // better than anything we would compose. Until then (and it titles asynchronously, so "until
+      // then" covers the whole time a turn is RUNNING, which is exactly what this panel shows) fall
+      // back to the prompt that started the session. Same shape as the Claude side, which has never
+      // shown a live row without a name.
+      title: meta?.title && meta.title !== '(untitled)' ? meta.title : (getOpenCodePrompt(sessionKey) ?? null),
       cwd: meta?.cwd || null,
     };
   });

src/servers/api/chat/opencode/state.ts

@@ -12,4 +12,25 @@ export const setOpenCodeSession = (sessionKey: string, opencodeSessionId: string
 
 export const clearOpenCodeSession = (sessionKey: string): void => {
   sessionKeyToOpenCode.delete(sessionKey);
+  sessionKeyToPrompt.delete(sessionKey);
 };
+
+// What the user asked, kept only to name a session OpenCode has not named yet.
+//
+// OpenCode titles a session from the conversation, and does it well — but asynchronously, so a RUNNING
+// turn is called `New session - <ISO>`, which is precisely when `/chat/live` displays it. This is the
+// stand-in for that window: shown while the real title is still the placeholder, and dropped the moment
+// OpenCode publishes its own, which is always the better one.
+//
+// Set on the FIRST turn of a session only, so it stays the name of the conversation rather than
+// following whatever was asked most recently.
+const sessionKeyToPrompt = new Map<string, string>();
+
+export const rememberOpenCodePrompt = (sessionKey: string, prompt: string): void => {
+  if (sessionKeyToPrompt.has(sessionKey)) return;
+  const oneLine = prompt.replace(/\s+/g, ' ').trim();
+  if (!oneLine) return;
+  sessionKeyToPrompt.set(sessionKey, oneLine.length > 60 ? `${oneLine.slice(0, 59)}…` : oneLine);
+};
+
+export const getOpenCodePrompt = (sessionKey: string): string | undefined => sessionKeyToPrompt.get(sessionKey);

src/servers/api/chat/websocket.ts

@@ -10,6 +10,7 @@ import type {
   UserSession,
 } from './types';
 import { sessionManager } from './session-manager';
+import { rememberOpenCodePrompt } from './opencode/state';
 import { sendClaudeCodeStreaming } from '@@/channels/send-claude-code';
 import { sendOpenCodeStreaming } from '@@/channels/send-opencode';
 import { ensureGeneralChatSessionsCwd } from './claude-sessions';
@@ -407,6 +408,9 @@ async function handleOpenCodeChat(
 
   const cwd = await resolveChatCwd(msg, email, userId);
 
+  // Names this session in the Live panel until OpenCode gets round to titling it. First turn only.
+  rememberOpenCodePrompt(sessionId, msg.displayText || msg.prompt);
+
   const groupSlug = msg.groupSlug || null;
 
   const session = sessionManager.getOrCreate(sessionId, email, cwd, model, groupSlug, msg.context, msg.contextId);