diff --git a/src/agents/pi-embedded-runner.sanitize-session-history.test.ts b/src/agents/pi-embedded-runner.sanitize-session-history.test.ts
index b428c3328..da4b733b0 100644
--- a/src/agents/pi-embedded-runner.sanitize-session-history.test.ts
+++ b/src/agents/pi-embedded-runner.sanitize-session-history.test.ts
@@ -76,7 +76,7 @@ describe("sanitizeSessionHistory", () => {
     );
   });
 
-  it("does not sanitize tool call ids for non-Google APIs", async () => {
+  it("sanitizes tool call ids for Anthropic APIs", async () => {
     vi.mocked(helpers.isGoogleModelApi).mockReturnValue(false);
 
     await sanitizeSessionHistory({
@@ -90,7 +90,7 @@ describe("sanitizeSessionHistory", () => {
     expect(helpers.sanitizeSessionMessagesImages).toHaveBeenCalledWith(
       mockMessages,
       "session:history",
-      expect.objectContaining({ sanitizeMode: "full", sanitizeToolCallIds: false }),
+      expect.objectContaining({ sanitizeMode: "full", sanitizeToolCallIds: true }),
     );
   });