diff --git a/src/renderer/src/runtime/web-session-tabs-sync.test.ts b/src/renderer/src/runtime/web-session-tabs-sync.test.ts
index f44d81365c6..cc4b91c4d84 100644
--- a/src/renderer/src/runtime/web-session-tabs-sync.test.ts
+++ b/src/renderer/src/runtime/web-session-tabs-sync.test.ts
@@ -1954,6 +1954,35 @@ describe('applyWebSessionTabsSnapshot', () => {
     expect(attributionPatch.agentStatusEpoch).toBe(8)
     expect(attributionPatch.sortEpoch).toBe(12)
 
+    const fresherAttributionPatch = applyWebSessionTabsSnapshot(
+      makeState({
+        ...initial,
+        agentStatusByPaneKey: {
+          [mirroredPaneKey]: {
+            ...existing,
+            updatedAt: NOW,
+            worktreeId: 'stale-worktree',
+            tabId: 'stale-tab',
+            providerSession: undefined
+          }
+        },
+        agentStatusEpoch: 7,
+        sortEpoch: 11
+      }),
+      { ...snapshot, snapshotVersion: 3 },
+      ENV,
+      NOW
+    ) as Partial<WebSessionTabsSyncState>
+
+    expect(fresherAttributionPatch.agentStatusByPaneKey?.[mirroredPaneKey]).toMatchObject({
+      worktreeId: existing.worktreeId,
+      tabId: existing.tabId,
+      updatedAt: NOW,
+      providerSession: { key: 'session_id', id: 'session-1' }
+    })
+    expect(fresherAttributionPatch.agentStatusEpoch).toBe(8)
+    expect(fresherAttributionPatch.sortEpoch).toBe(12)
+
     const identityPatch = applyWebSessionTabsSnapshot(
       makeState({
         ...initial,
@@ -1966,7 +1995,7 @@ describe('applyWebSessionTabsSnapshot', () => {
           }
         }
       }),
-      { ...snapshot, snapshotVersion: 3 },
+      { ...snapshot, snapshotVersion: 4 },
       ENV,
       NOW
     ) as Partial<WebSessionTabsSyncState>
diff --git a/src/renderer/src/runtime/web-session-tabs-sync.ts b/src/renderer/src/runtime/web-session-tabs-sync.ts
index 82f38324fe7..d1b0b4ba538 100644
--- a/src/renderer/src/runtime/web-session-tabs-sync.ts
+++ b/src/renderer/src/runtime/web-session-tabs-sync.ts
@@ -713,11 +713,14 @@ function buildMirroredAgentStatusPatch(
       continue
     }
     const existing = state.agentStatusByPaneKey[entry.paneKey]
-    // Why: an active web stream can report a fresher OSC 9999 status before the next host snapshot, so don't rewind it with an older host publication.
+    // Why: keep fresher OSC state while taking remapped ownership metadata from the authoritative host snapshot.
     const nextEntry =
       existing && existing.updatedAt > entry.updatedAt
         ? {
             ...normalizeCompatibleAgentStatusEntryForOwner(existing, entry.agentType),
+            paneKey: entry.paneKey,
+            worktreeId: entry.worktreeId ?? existing.worktreeId,
+            tabId: entry.tabId,
             providerSession: existing.providerSession ?? entry.providerSession
           }
         : entry