diff --git a/src/gateway/server-methods/sessions.ts b/src/gateway/server-methods/sessions.ts
index c90e3439bfd..22366be8a62 100644
--- a/src/gateway/server-methods/sessions.ts
+++ b/src/gateway/server-methods/sessions.ts
@@ -149,6 +149,11 @@ function emitSessionsChanged(
             sessionId: sessionRow.sessionId,
             kind: sessionRow.kind,
             channel: sessionRow.channel,
+            subject: sessionRow.subject,
+            groupChannel: sessionRow.groupChannel,
+            space: sessionRow.space,
+            chatType: sessionRow.chatType,
+            origin: sessionRow.origin,
             spawnedBy: sessionRow.spawnedBy,
             label: sessionRow.label,
             displayName: sessionRow.displayName,
@@ -156,8 +161,14 @@ function emitSessionsChanged(
             parentSessionKey: sessionRow.parentSessionKey,
             childSessions: sessionRow.childSessions,
             thinkingLevel: sessionRow.thinkingLevel,
+            fastMode: sessionRow.fastMode,
+            verboseLevel: sessionRow.verboseLevel,
+            reasoningLevel: sessionRow.reasoningLevel,
+            elevatedLevel: sessionRow.elevatedLevel,
             systemSent: sessionRow.systemSent,
             abortedLastRun: sessionRow.abortedLastRun,
+            inputTokens: sessionRow.inputTokens,
+            outputTokens: sessionRow.outputTokens,
             lastChannel: sessionRow.lastChannel,
             lastTo: sessionRow.lastTo,
             lastAccountId: sessionRow.lastAccountId,
@@ -165,6 +176,7 @@ function emitSessionsChanged(
             totalTokensFresh: sessionRow.totalTokensFresh,
             contextTokens: sessionRow.contextTokens,
             estimatedCostUsd: sessionRow.estimatedCostUsd,
+            responseUsage: sessionRow.responseUsage,
             modelProvider: sessionRow.modelProvider,
             model: sessionRow.model,
             status: sessionRow.status,
diff --git a/src/gateway/server.impl.ts b/src/gateway/server.impl.ts
index 3a844059f94..77d886ed710 100644
--- a/src/gateway/server.impl.ts
+++ b/src/gateway/server.impl.ts
@@ -941,6 +941,11 @@ export async function startGatewayServer(
                 sessionId: sessionRow.sessionId,
                 kind: sessionRow.kind,
                 channel: sessionRow.channel,
+                subject: sessionRow.subject,
+                groupChannel: sessionRow.groupChannel,
+                space: sessionRow.space,
+                chatType: sessionRow.chatType,
+                origin: sessionRow.origin,
                 spawnedBy: sessionRow.spawnedBy,
                 label: sessionRow.label,
                 displayName: sessionRow.displayName,
@@ -948,8 +953,14 @@ export async function startGatewayServer(
                 parentSessionKey: sessionRow.parentSessionKey,
                 childSessions: sessionRow.childSessions,
                 thinkingLevel: sessionRow.thinkingLevel,
+                fastMode: sessionRow.fastMode,
+                verboseLevel: sessionRow.verboseLevel,
+                reasoningLevel: sessionRow.reasoningLevel,
+                elevatedLevel: sessionRow.elevatedLevel,
                 systemSent: sessionRow.systemSent,
                 abortedLastRun: sessionRow.abortedLastRun,
+                inputTokens: sessionRow.inputTokens,
+                outputTokens: sessionRow.outputTokens,
                 lastChannel: sessionRow.lastChannel,
                 lastTo: sessionRow.lastTo,
                 lastAccountId: sessionRow.lastAccountId,
@@ -957,6 +968,7 @@ export async function startGatewayServer(
                 totalTokensFresh: sessionRow.totalTokensFresh,
                 contextTokens: sessionRow.contextTokens,
                 estimatedCostUsd: sessionRow.estimatedCostUsd,
+                responseUsage: sessionRow.responseUsage,
                 modelProvider: sessionRow.modelProvider,
                 model: sessionRow.model,
                 status: sessionRow.status,
@@ -1023,6 +1035,11 @@ export async function startGatewayServer(
                     sessionId: sessionRow.sessionId,
                     kind: sessionRow.kind,
                     channel: sessionRow.channel,
+                    subject: sessionRow.subject,
+                    groupChannel: sessionRow.groupChannel,
+                    space: sessionRow.space,
+                    chatType: sessionRow.chatType,
+                    origin: sessionRow.origin,
                     spawnedBy: sessionRow.spawnedBy,
                     label: event.label ?? sessionRow.label,
                     displayName: event.displayName ?? sessionRow.displayName,
@@ -1030,8 +1047,14 @@ export async function startGatewayServer(
                     parentSessionKey: event.parentSessionKey ?? sessionRow.parentSessionKey,
                     childSessions: sessionRow.childSessions,
                     thinkingLevel: sessionRow.thinkingLevel,
+                    fastMode: sessionRow.fastMode,
+                    verboseLevel: sessionRow.verboseLevel,
+                    reasoningLevel: sessionRow.reasoningLevel,
+                    elevatedLevel: sessionRow.elevatedLevel,
                     systemSent: sessionRow.systemSent,
                     abortedLastRun: sessionRow.abortedLastRun,
+                    inputTokens: sessionRow.inputTokens,
+                    outputTokens: sessionRow.outputTokens,
                     lastChannel: sessionRow.lastChannel,
                     lastTo: sessionRow.lastTo,
                     lastAccountId: sessionRow.lastAccountId,
@@ -1039,6 +1062,7 @@ export async function startGatewayServer(
                     totalTokensFresh: sessionRow.totalTokensFresh,
                     contextTokens: sessionRow.contextTokens,
                     estimatedCostUsd: sessionRow.estimatedCostUsd,
+                    responseUsage: sessionRow.responseUsage,
                     modelProvider: sessionRow.modelProvider,
                     model: sessionRow.model,
                     status: sessionRow.status,
diff --git a/src/gateway/server.sessions.gateway-server-sessions-a.test.ts b/src/gateway/server.sessions.gateway-server-sessions-a.test.ts
index 75236a6e911..dae4f1b0247 100644
--- a/src/gateway/server.sessions.gateway-server-sessions-a.test.ts
+++ b/src/gateway/server.sessions.gateway-server-sessions-a.test.ts
@@ -593,6 +593,58 @@ describe("gateway server sessions", () => {
     );
   });
 
+  test("sessions.changed mutation events include live session setting metadata", async () => {
+    await createSessionStoreDir();
+    await writeSessionStore({
+      entries: {
+        main: {
+          sessionId: "sess-main",
+          updatedAt: Date.now(),
+          verboseLevel: "on",
+          responseUsage: "full",
+          fastMode: true,
+        },
+      },
+    });
+
+    const broadcastToConnIds = vi.fn();
+    const respond = vi.fn();
+    const sessionsHandlers = await getSessionsHandlers();
+    await sessionsHandlers["sessions.patch"]({
+      req: {} as never,
+      params: {
+        key: "main",
+        verboseLevel: "on",
+      },
+      respond,
+      context: {
+        broadcastToConnIds,
+        getSessionEventSubscriberConnIds: () => new Set(["conn-1"]),
+        loadGatewayModelCatalog: async () => ({ providers: [] }),
+      } as never,
+      client: null,
+      isWebchatConnect: () => false,
+    });
+
+    expect(respond).toHaveBeenCalledWith(
+      true,
+      expect.objectContaining({ ok: true, key: "agent:main:main" }),
+      undefined,
+    );
+    expect(broadcastToConnIds).toHaveBeenCalledWith(
+      "sessions.changed",
+      expect.objectContaining({
+        sessionKey: "agent:main:main",
+        reason: "patch",
+        verboseLevel: "on",
+        responseUsage: "full",
+        fastMode: true,
+      }),
+      new Set(["conn-1"]),
+      { dropIfSlow: true },
+    );
+  });
+
   test("lists and patches session store via sessions.* RPC", async () => {
     const { dir, storePath } = await createSessionStoreDir();
     const now = Date.now();
diff --git a/src/gateway/session-utils.ts b/src/gateway/session-utils.ts
index 81dbc5cfcf1..65fd966d2ac 100644
--- a/src/gateway/session-utils.ts
+++ b/src/gateway/session-utils.ts
@@ -1210,6 +1210,7 @@ export function buildGatewaySessionRow(params: {
     systemSent: entry?.systemSent,
     abortedLastRun: entry?.abortedLastRun,
     thinkingLevel: entry?.thinkingLevel,
+    fastMode: entry?.fastMode,
     verboseLevel: entry?.verboseLevel,
     reasoningLevel: entry?.reasoningLevel,
     elevatedLevel: entry?.elevatedLevel,