diff --git a/src/agents/pi-tools.host-edit.ts b/src/agents/pi-tools.host-edit.ts
index f58d391de76..0a17ff8a110 100644
--- a/src/agents/pi-tools.host-edit.ts
+++ b/src/agents/pi-tools.host-edit.ts
@@ -63,6 +63,7 @@ export function wrapHostEditToolWithPostWriteRecovery(
             oldText !== undefined && oldText.length > 0 && content.includes(oldText);
           if (hasNew && !stillHasOld) {
             return {
+              isError: false,
               content: [
                 {
                   type: "text",
diff --git a/src/agents/pi-tools.read.host-edit-recovery.test.ts b/src/agents/pi-tools.read.host-edit-recovery.test.ts
index 225aea1a7d0..7faf2a5c912 100644
--- a/src/agents/pi-tools.read.host-edit-recovery.test.ts
+++ b/src/agents/pi-tools.read.host-edit-recovery.test.ts
@@ -61,6 +61,8 @@ describe("createHostWorkspaceEditTool post-write recovery", () => {
       : [];
     const textBlock = content.find((b) => b?.type === "text" && typeof b.text === "string");
     expect(textBlock?.text).toContain("Successfully replaced text");
+    // isError must be explicitly false so the framework does not surface a false failure notification
+    expect((result as { isError?: unknown }).isError).toBe(false);
   });
 
   it("rethrows when file on disk does not contain newText", async () => {