fix: recognize Poe 402 'used up your points' as billing for fallback (#42278)

Merged via squash.

Prepared head SHA: f3cdfa76dd
Co-authored-by: CryUshio <30655354+CryUshio@users.noreply.github.com>
Co-authored-by: altaywtf <9790196+altaywtf@users.noreply.github.com>
Reviewed-by: @altaywtf

CHANGELOG.md

@@ -65,6 +65,7 @@ Docs: https://docs.openclaw.ai
 - Agents/fallback cooldown probing: cap cooldown-bypass probing to one attempt per provider per fallback run so multi-model same-provider cooldown chains can continue to cross-provider fallbacks instead of repeatedly stalling on duplicate cooldown probes. (#41711) Thanks @cgdusek.
 - Telegram/direct delivery: bridge direct delivery sends to internal `message:sent` hooks so internal hook listeners observe successful Telegram deliveries. (#40185) Thanks @vincentkoc.
 - Plugins/global hook runner: harden singleton state handling so shared global hook runner reuse does not leak or corrupt runner state across executions. (#40184) Thanks @vincentkoc.
+- Agents/fallback: recognize Poe `402 You've used up your points!` billing errors so configured model fallbacks trigger instead of surfacing the raw provider error. (#42278) Thanks @CryUshio.
 
 ## 2026.3.8
 

src/agents/pi-embedded-helpers.isbillingerrormessage.test.ts

@@ -646,6 +646,12 @@ describe("classifyFailoverReason", () => {
     expect(classifyFailoverReason("402 Payment Required: Weekly/Monthly Limit Exhausted")).toBe(
       "billing",
     );
+    // Poe returns 402 without "payment required"; must be recognized for fallback
+    expect(
+      classifyFailoverReason(
+        "402 You've used up your points! Visit https://poe.com/api/keys to get more.",
+      ),
+    ).toBe("billing");
     expect(classifyFailoverReason(INSUFFICIENT_QUOTA_PAYLOAD)).toBe("billing");
     expect(classifyFailoverReason("deadline exceeded")).toBe("timeout");
     expect(classifyFailoverReason("request ended without sending any chunks")).toBe("timeout");

src/agents/pi-embedded-helpers/errors.ts

@@ -237,7 +237,7 @@ const RETRYABLE_402_SCOPED_RESULT_HINTS = [
   "exhausted",
 ] as const;
 const RAW_402_MARKER_RE =
-  /["']?(?:status|code)["']?\s*[:=]\s*402\b|\bhttp\s*402\b|\berror(?:\s+code)?\s*[:=]?\s*402\b|\b(?:got|returned|received)\s+(?:a\s+)?402\b|^\s*402\s+payment required\b/i;
+  /["']?(?:status|code)["']?\s*[:=]\s*402\b|\bhttp\s*402\b|\berror(?:\s+code)?\s*[:=]?\s*402\b|\b(?:got|returned|received)\s+(?:a\s+)?402\b|^\s*402\s+payment required\b|^\s*402\s+.*used up your points\b/i;
 const LEADING_402_WRAPPER_RE =
   /^(?:error[:\s-]+)?(?:(?:http\s*)?402(?:\s+payment required)?|payment required)(?:[:\s-]+|$)/i;