diff --git a/core/src/actions/prompt_thread.test.ts b/core/src/actions/prompt_thread.test.ts
index d95e94b..fb8f059 100644
--- a/core/src/actions/prompt_thread.test.ts
+++ b/core/src/actions/prompt_thread.test.ts
@@ -276,7 +276,6 @@ describe("PromptThread", () => {
     expect(thread.errors.length).toBe(0);
 
     const response = content.at(-1)?.response ?? "";
-    expect(response).toContain("USED TOOL add WITH ARGS 40 7");
     expect(response).toContain("TOOL RETURNED 47");
   });
 });
diff --git a/core/src/actions/prompt_thread.ts b/core/src/actions/prompt_thread.ts
index ed4a972..9a365b3 100644
--- a/core/src/actions/prompt_thread.ts
+++ b/core/src/actions/prompt_thread.ts
@@ -300,7 +300,7 @@ export function generateOne(
 
       c.meta.messages.push({
         role: "user",
-        content: `USED TOOL ${toolUse.name} WITH ARGS ${toolUse.partial}`,
+        content: "",
         toolUse: {
           name: toolUse.name,
           input: toolUse.input,