diff --git a/packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts b/packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts
index 54727f571b..051b0eef20 100644
--- a/packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts
+++ b/packages/ui/jsonrpc/tests/built-scope-carrier.e2e.ts
@@ -43,7 +43,7 @@ const [
 const storageRoot = await mkdtemp(join(tmpdir(), "jsonrpc-built-scope-"));
 const ctx = new Context();
 try {
-  await ctx.plugin(agentCore);
+  await ctx.plugin(agentCore, { workspaceContext: false });
   await ctx.plugin(SubagentService);
   await ctx.plugin(SessionPersistenceJsonl, { root: storageRoot });
   await new Promise((ready) => setTimeout(ready, 50));