diff --git a/extensions/googlechat/src/monitor.ts b/extensions/googlechat/src/monitor.ts
index b43dba6dace..e8577f248cb 100644
--- a/extensions/googlechat/src/monitor.ts
+++ b/extensions/googlechat/src/monitor.ts
@@ -7,7 +7,6 @@ import {
   readJsonBodyWithLimit,
   registerPluginHttpRoute,
   registerWebhookTarget,
-  registerPluginHttpRoute,
   rejectNonPostWebhookRequest,
   isDangerousNameMatchingEnabled,
   resolveAllowlistProviderRuntimeGroupPolicy,
diff --git a/extensions/phone-control/index.test.ts b/extensions/phone-control/index.test.ts
index 480d1390452..4711400c700 100644
--- a/extensions/phone-control/index.test.ts
+++ b/extensions/phone-control/index.test.ts
@@ -33,7 +33,6 @@ function createApi(params: {
     logger: { info() {}, warn() {}, error() {} },
     registerTool() {},
     registerHook() {},
-    registerHttpHandler() {},
     registerHttpRoute() {},
     registerChannel() {},
     registerGatewayMethod() {},
diff --git a/src/gateway/server-http.test-harness.ts b/src/gateway/server-http.test-harness.ts
index 09c7510b8d1..bf963487038 100644
--- a/src/gateway/server-http.test-harness.ts
+++ b/src/gateway/server-http.test-harness.ts
@@ -128,7 +128,7 @@ export async function sendRequest(
     authorization?: string;
     method?: string;
   },
-) {
+): Promise<ReturnType<typeof createResponse>> {
   const response = createResponse();
   await dispatchRequest(server, createRequest(params), response.res);
   return response;