diff --git a/src/agents/pi-model-discovery.synthetic-auth.test.ts b/src/agents/pi-model-discovery.synthetic-auth.test.ts
index fac72e895bc..d38975b6edd 100644
--- a/src/agents/pi-model-discovery.synthetic-auth.test.ts
+++ b/src/agents/pi-model-discovery.synthetic-auth.test.ts
@@ -70,7 +70,9 @@ describe("pi model discovery synthetic auth", () => {
     await withAgentDir(async (agentDir) => {
       const credentials = resolvePiCredentialsForDiscovery(agentDir, { readOnly: true });
 
-      expect(resolveRuntimeSyntheticAuthProviderRefs).toHaveBeenCalled();
+      expect(resolveRuntimeSyntheticAuthProviderRefs).toHaveBeenCalledTimes(1);
+      expect(resolveRuntimeSyntheticAuthProviderRefs).toHaveBeenCalledWith();
+      expect(resolveProviderSyntheticAuthWithPlugin).toHaveBeenCalledTimes(1);
       expect(resolveProviderSyntheticAuthWithPlugin).toHaveBeenCalledWith({
         provider: "claude-cli",
         context: {