diff --git a/packages/fs/tool-str-replace-editor/tests/tools.spec.ts b/packages/fs/tool-str-replace-editor/tests/tools.spec.ts
index 9a948ed164..0a3b65ba5e 100644
--- a/packages/fs/tool-str-replace-editor/tests/tools.spec.ts
+++ b/packages/fs/tool-str-replace-editor/tests/tools.spec.ts
@@ -39,6 +39,7 @@ function agent(ctx: Context, cwd: string): Agent {
     steer: () => {},
     inject: () => {},
     send: () => {},
+    updateInbox: () => 'not-found',
     cancel() {},
     whenIdle: () => Promise.resolve(),
   }
diff --git a/packages/pty/tool-bash-persistent/tests/loader-composition.spec.ts b/packages/pty/tool-bash-persistent/tests/loader-composition.spec.ts
index b8586161f2..9e18402477 100644
--- a/packages/pty/tool-bash-persistent/tests/loader-composition.spec.ts
+++ b/packages/pty/tool-bash-persistent/tests/loader-composition.spec.ts
@@ -49,6 +49,7 @@ function agent(ctx: Context, cwd: string): Agent {
     steer: () => {},
     inject: () => {},
     send: () => {},
+    updateInbox: () => 'not-found',
     cancel() {},
     whenIdle: () => Promise.resolve(),
   }
diff --git a/packages/pty/tool-bash-persistent/tests/tools.spec.ts b/packages/pty/tool-bash-persistent/tests/tools.spec.ts
index 4b5401a256..9949879292 100644
--- a/packages/pty/tool-bash-persistent/tests/tools.spec.ts
+++ b/packages/pty/tool-bash-persistent/tests/tools.spec.ts
@@ -45,6 +45,7 @@ function agent(ctx: Context, cwd: string | undefined): Agent {
     steer: () => {},
     inject: () => {},
     send: () => {},
+    updateInbox: () => 'not-found',
     cancel() {},
     whenIdle: () => Promise.resolve(),
   }