diff --git a/src/gateway/server-methods/agent.test.ts b/src/gateway/server-methods/agent.test.ts
index fdb90311962..e5916e9ded2 100644
--- a/src/gateway/server-methods/agent.test.ts
+++ b/src/gateway/server-methods/agent.test.ts
@@ -279,6 +279,7 @@ describe("gateway agent handler", () => {
   });
 
   it("respects explicit bestEffortDeliver=false for main session runs", async () => {
+    mocks.agentCommand.mockClear();
     primeMainAgentRun();
 
     await invokeAgent(