From 5f4b5d728375f173b9edcbafe727acbb1d947fc6 Mon Sep 17 00:00:00 2001
From: Altay <altay@uinaf.dev>
Date: Fri, 17 Apr 2026 23:51:53 +0300
Subject: [PATCH] fix: route explicit 402 wrappers through classifier

---
 src/agents/pi-embedded-helpers.isbillingerrormessage.test.ts | 3 +++
 src/agents/pi-embedded-helpers/errors.ts                     | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/agents/pi-embedded-helpers.isbillingerrormessage.test.ts b/src/agents/pi-embedded-helpers.isbillingerrormessage.test.ts
index 029550a09f3..94e5d67adab 100644
--- a/src/agents/pi-embedded-helpers.isbillingerrormessage.test.ts
+++ b/src/agents/pi-embedded-helpers.isbillingerrormessage.test.ts
@@ -941,6 +941,9 @@ describe("classifyFailoverReasonFromHttpStatus – 402 temporary limits", () =>
 
   it("keeps explicit 402 rate-limit messages in the rate_limit lane", () => {
     const transientMessage = "rate limit exceeded";
+    expect(classifyFailoverReasonFromHttpStatus(402, `402: ${transientMessage}`)).toBe(
+      "rate_limit",
+    );
     expect(classifyFailoverReason(`HTTP 402 Payment Required: ${transientMessage}`)).toBe(
       "rate_limit",
     );
diff --git a/src/agents/pi-embedded-helpers/errors.ts b/src/agents/pi-embedded-helpers/errors.ts
index 5f09b7ffc08..2e8ae9f2536 100644
--- a/src/agents/pi-embedded-helpers/errors.ts
+++ b/src/agents/pi-embedded-helpers/errors.ts
@@ -609,7 +609,7 @@ function classifyFailoverClassificationFromHttpStatus(
         return toReasonClassification(reasonFrom402Text);
       }
       return typeof explicitStatus === "number"
-        ? toReasonClassification("billing")
+        ? toReasonClassification(classify402Message(message))
         : messageClassification;
     }
     return toReasonClassification(classify402Message(message));