diff --git a/src/agents/pi-embedded-runner/run/attempt.spawn-workspace.context-engine.test.ts b/src/agents/pi-embedded-runner/run/attempt.spawn-workspace.context-engine.test.ts
index 3905606244f..486d5dc59a4 100644
--- a/src/agents/pi-embedded-runner/run/attempt.spawn-workspace.context-engine.test.ts
+++ b/src/agents/pi-embedded-runner/run/attempt.spawn-workspace.context-engine.test.ts
@@ -644,7 +644,7 @@ describe("runEmbeddedAttempt context engine sessionKey forwarding", () => {
 
   it("uses assembled context as the default precheck authority", async () => {
     let sawPrompt = false;
-    const hugeHistory = "large raw history ".repeat(25_000);
+    const hugeHistory = "large raw history ".repeat(2_000);
 
     const result = await createContextEngineAttemptRunner({
       contextEngine: createTestContextEngine({
@@ -678,7 +678,7 @@ describe("runEmbeddedAttempt context engine sessionKey forwarding", () => {
 
   it("honors context engines that opt into preassembly overflow authority", async () => {
     let sawPrompt = false;
-    const hugeHistory = "large raw history ".repeat(25_000);
+    const hugeHistory = "large raw history ".repeat(2_000);
 
     const result = await createContextEngineAttemptRunner({
       contextEngine: createTestContextEngine({
@@ -712,7 +712,7 @@ describe("runEmbeddedAttempt context engine sessionKey forwarding", () => {
   });
 
   it("snapshots pre-assembly messages before assemble even when the engine windows in place", async () => {
-    const hugeHistory = "large raw history ".repeat(25_000);
+    const hugeHistory = "large raw history ".repeat(2_000);
     const preassemblyMarker = { role: "user", content: hugeHistory, timestamp: 1 } as AgentMessage;
 
     await createContextEngineAttemptRunner({