diff --git a/src/agents/command/attempt-execution.helpers.ts b/src/agents/command/attempt-execution.helpers.ts
index f9abc3401c1..2315346ecf5 100644
--- a/src/agents/command/attempt-execution.helpers.ts
+++ b/src/agents/command/attempt-execution.helpers.ts
@@ -73,7 +73,13 @@ export function resolveFallbackRetryPrompt(params: {
   if (!params.sessionHasHistory) {
     return params.body;
   }
-  return "Continue where you left off. The previous model attempt failed or timed out.";
+  // Even with persisted session history, fully replacing the body with a
+  // generic "continue where you left off" message strips the original task
+  // from the fallback model's view. Agents then have to reconstruct the
+  // instruction from history alone, which is fragile and sometimes
+  // impossible. Prepend the retry context to the original body instead so
+  // the fallback model has both the recovery signal AND the task. (#65760)
+  return `[Retry after the previous model attempt failed or timed out]\n\n${params.body}`;
 }
 
 export function createAcpVisibleTextAccumulator() {
diff --git a/src/agents/command/attempt-execution.test.ts b/src/agents/command/attempt-execution.test.ts
index b1b5ab72700..6ab929778bd 100644
--- a/src/agents/command/attempt-execution.test.ts
+++ b/src/agents/command/attempt-execution.test.ts
@@ -20,14 +20,14 @@ describe("resolveFallbackRetryPrompt", () => {
     ).toBe(originalBody);
   });
 
-  it("returns recovery prompt for fallback retry with existing session history", () => {
+  it("prepends recovery prefix to original body on fallback retry with existing session history", () => {
     expect(
       resolveFallbackRetryPrompt({
         body: originalBody,
         isFallbackRetry: true,
         sessionHasHistory: true,
       }),
-    ).toBe("Continue where you left off. The previous model attempt failed or timed out.");
+    ).toBe(`[Retry after the previous model attempt failed or timed out]\n\n${originalBody}`);
   });
 
   it("preserves original body for fallback retry when session has no history (subagent spawn)", () => {