diff --git a/src/servers/api/chat/chat.ts b/src/servers/api/chat/chat.ts
index 77b81878..7a86f154 100644
--- a/src/servers/api/chat/chat.ts
+++ b/src/servers/api/chat/chat.ts
@@ -101,14 +101,17 @@ chatRouter.get('/sessions/:id', async (ctx) => {
 //
 // `pendingTasks` is background work started but not yet notified — with `isGenerating` it is what the
 // agent's own idle GC consults, so a caller can tell "busy" from "merely open" the same way it does.
-// Titles are resolved here rather than in the client: the agent reports session keys and nothing else,
-// and the client can only name the sessions in the group it happens to be browsing — which is how the
-// list ended up showing raw ids for anything running elsewhere.
+// Titles are resolved here rather than in the client, which can only name the sessions in the group it
+// happens to be browsing — which is how the list ended up showing raw ids for anything running elsewhere.
 chatRouter.get('/live', async (ctx) => {
   const email = ctx.get('user').email;
   const live = await sidecar.listLiveClaudeSessions();
   const sessions = live.map((session) => {
-    const resolved = isOpenCodeSessionId(session.sessionKey) ? null : liveSessionTitle(email, session.sessionKey);
+    // Resolve by Claude's id, never by the session key — the key is officer's handle and the transcript
+    // is named after Claude's. Null until the first turn reports one, which is a conversation that has
+    // genuinely not been written yet.
+    const transcriptId = session.claudeSessionId;
+    const resolved = transcriptId && !isOpenCodeSessionId(transcriptId) ? liveSessionTitle(email, transcriptId) : null;
     return { ...session, title: resolved?.title ?? null, cwd: resolved?.cwd ?? null };
   });
   return ctx.json({ sessions });
diff --git a/src/servers/sidecar/claude/claude-manager.ts b/src/servers/sidecar/claude/claude-manager.ts
index 15b067a3..3930ca96 100644
--- a/src/servers/sidecar/claude/claude-manager.ts
+++ b/src/servers/sidecar/claude/claude-manager.ts
@@ -511,6 +511,9 @@ export function clearSession(sessionKey: string): void {
 export function listSessions(): LiveClaudeSession[] {
   return Array.from(sessions.values()).map((session) => ({
     sessionKey: session.sessionKey,
+    // The only place this mapping exists. Without it a caller cannot find the transcript, because the
+    // key is officer's handle and the filename is Claude's id.
+    claudeSessionId: getClaudeSession(session.sessionKey) ?? null,
     isGenerating: session.isGenerating,
     pendingTasks: session.pendingTasks.size,
   }));
diff --git a/src/servers/sidecar/protocol.ts b/src/servers/sidecar/protocol.ts
index bc9d7d07..09bf2237 100644
--- a/src/servers/sidecar/protocol.ts
+++ b/src/servers/sidecar/protocol.ts
@@ -13,6 +13,14 @@ export type SidecarMessage = SidecarCommand | SidecarEvent;
  */
 export type LiveClaudeSession = {
   sessionKey: string;
+  /**
+   * Claude's own session id — the transcript's filename — or null before the first turn reports one.
+   *
+   * NOT the same as `sessionKey`, which is officer's handle for the conversation. Only the agent holds
+   * the mapping (`setClaudeSession`/`getClaudeSession`), so anything that wants to find the transcript
+   * has to be told it here. Assuming the two were equal made every live row unnameable and unlinkable.
+   */
+  claudeSessionId: string | null;
   isGenerating: boolean;
   pendingTasks: number;
 };
diff --git a/src/workspaces/officerdev/src/apps/ChatHistory/LiveSessions.tsx b/src/workspaces/officerdev/src/apps/ChatHistory/LiveSessions.tsx
index d01b5ec7..c74f7f52 100644
--- a/src/workspaces/officerdev/src/apps/ChatHistory/LiveSessions.tsx
+++ b/src/workspaces/officerdev/src/apps/ChatHistory/LiveSessions.tsx
@@ -40,16 +40,16 @@ export const LiveSessions = () => {
   return (
     <DataList>
       {live.map((session) => {
-        // No title means no transcript on disk yet — a conversation whose first turn has not landed. It
-        // is shown but not linked: a row that navigates to a session you cannot open is worse than one
-        // that plainly isn't a link.
-        const isDraft = session.title === null;
+        // The route opens Claude's id, not the agent's session key — they are different things and only
+        // the agent holds the mapping. No id yet means a conversation whose first turn has not landed:
+        // shown, but deliberately not a link, since there is nothing to open.
+        const transcriptId = session.claudeSessionId;
 
         return (
           <DataRow
             key={session.sessionKey}
-            to={isDraft ? undefined : chatSessionPath(session.sessionKey)}
-            selected={session.sessionKey === sessionId}
+            to={transcriptId ? chatSessionPath(transcriptId) : undefined}
+            selected={transcriptId === sessionId}
             title={session.title ?? 'Starting…'}
             meta={[
               session.isGenerating ? (
diff --git a/src/workspaces/state/src/useLiveSessions.ts b/src/workspaces/state/src/useLiveSessions.ts
index 99675dec..d390df0a 100644
--- a/src/workspaces/state/src/useLiveSessions.ts
+++ b/src/workspaces/state/src/useLiveSessions.ts
@@ -10,6 +10,11 @@ import { useAuth } from 'hooks/useAuth';
  */
 export type LiveSession = {
   sessionKey: string;
+  /**
+   * Claude's own id, which is what `/chat/:sessionId` opens — distinct from `sessionKey`, officer's
+   * handle for the same conversation. Null before the first turn has reported one.
+   */
+  claudeSessionId: string | null;
   isGenerating: boolean;
   /** Background tasks started but not yet notified — `run_in_background`, Monitor, and friends. */
   pendingTasks: number;