diff --git a/src/gateway/server-methods/send.test.ts b/src/gateway/server-methods/send.test.ts
index 0e3bfba668c..e3c3c168c31 100644
--- a/src/gateway/server-methods/send.test.ts
+++ b/src/gateway/server-methods/send.test.ts
@@ -392,7 +392,10 @@ describe("gateway send mirroring", () => {
 
     expect(mocks.deliverOutboundPayloads).toHaveBeenCalledWith(
       expect.objectContaining({
-        agentId: "work",
+        session: expect.objectContaining({
+          agentId: "work",
+          key: "agent:work:slack:channel:resolved",
+        }),
         mirror: expect.objectContaining({
           sessionKey: "agent:work:slack:channel:resolved",
           agentId: "work",
@@ -414,7 +417,10 @@ describe("gateway send mirroring", () => {
 
     expect(mocks.deliverOutboundPayloads).toHaveBeenCalledWith(
       expect.objectContaining({
-        agentId: "work",
+        session: expect.objectContaining({
+          agentId: "work",
+          key: "agent:work:slack:channel:c1",
+        }),
         mirror: expect.objectContaining({
           sessionKey: "agent:work:slack:channel:c1",
           agentId: "work",
@@ -437,7 +443,10 @@ describe("gateway send mirroring", () => {
 
     expect(mocks.deliverOutboundPayloads).toHaveBeenCalledWith(
       expect.objectContaining({
-        agentId: "work",
+        session: expect.objectContaining({
+          agentId: "work",
+          key: "agent:main:slack:channel:c1",
+        }),
         mirror: expect.objectContaining({
           sessionKey: "agent:main:slack:channel:c1",
           agentId: "work",
@@ -460,7 +469,10 @@ describe("gateway send mirroring", () => {
 
     expect(mocks.deliverOutboundPayloads).toHaveBeenCalledWith(
       expect.objectContaining({
-        agentId: "work",
+        session: expect.objectContaining({
+          agentId: "work",
+          key: "agent:work:slack:channel:c1",
+        }),
         mirror: expect.objectContaining({
           sessionKey: "agent:work:slack:channel:c1",
           agentId: "work",
diff --git a/src/infra/outbound/message.test.ts b/src/infra/outbound/message.test.ts
index d6fab2e39dc..36780b99505 100644
--- a/src/infra/outbound/message.test.ts
+++ b/src/infra/outbound/message.test.ts
@@ -63,7 +63,7 @@ describe("sendMessage", () => {
 
     expect(mocks.deliverOutboundPayloads).toHaveBeenCalledWith(
       expect.objectContaining({
-        agentId: "work",
+        session: expect.objectContaining({ agentId: "work" }),
         channel: "telegram",
         to: "123456",
       }),