From 2bb211c979791260e4a3569f94f0c4dc2e787f4f Mon Sep 17 00:00:00 2001
From: YeonGyu-Kim <code.yeon.gyu@gmail.com>
Date: Sat, 21 Feb 2026 02:27:27 +0900
Subject: [PATCH] fix: add max retry protection and session cleanup for model
 fallback

---
 src/shared/model-error-classifier.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/shared/model-error-classifier.ts b/src/shared/model-error-classifier.ts
index 9ff47fb5..7cbebca3 100644
--- a/src/shared/model-error-classifier.ts
+++ b/src/shared/model-error-classifier.ts
@@ -55,6 +55,8 @@ const RETRYABLE_MESSAGE_PATTERNS = [
   "504",
 ]
 
+const MAX_FALLBACK_ATTEMPTS = 10
+
 export interface ErrorInfo {
   name?: string
   message?: string
@@ -108,7 +110,10 @@ export function hasMoreFallbacks(
   fallbackChain: FallbackEntry[],
   attemptCount: number,
 ): boolean {
-  return attemptCount < fallbackChain.length
+  return (
+    attemptCount < fallbackChain.length &&
+    attemptCount < MAX_FALLBACK_ATTEMPTS
+  )
 }
 
 /**