diff --git a/config/platform-infra/sub2api-codex-pool.yaml b/config/platform-infra/sub2api-codex-pool.yaml
index 31a138f0..d1c1f343 100644
--- a/config/platform-infra/sub2api-codex-pool.yaml
+++ b/config/platform-infra/sub2api-codex-pool.yaml
@@ -12,22 +12,38 @@ runtime:
   templates:
     - id: codex-upstream-failover
       kind: temp-unschedulable
-      description: Reusable Sub2API request-path cooling and failover policy for Codex-compatible API-key accounts.
+      description: Codex 兼容 API-key 账号的请求路径短时冷却与换号策略。
       spec:
         enabled: true
         rules:
+          - statusCode: 429
+            keywords: [concurrency limit exceeded, upstream rate limit exceeded]
+            durationMinutes: 1
+            description: 明确命中上游并发或速率限制时短时冷却当前账号。
+          - statusCode: 400
+            keywords: [input must be a list]
+            durationMinutes: 1
+            description: 明确命中 Responses input 列表兼容错误时短时冷却并切换账号。
+          - statusCode: 500
+            keywords: [failed to validate api key, do request failed]
+            durationMinutes: 1
+            description: 上游 API-key 查询依赖或请求传输内部失败时短时冷却当前账号。
           - statusCode: 502
-            keywords: [upstream service temporarily unavailable, upstream request failed, context window, stream usage incomplete, missing terminal event]
+            keywords: [upstream service temporarily unavailable, upstream request failed, service temporarily unavailable, overloaded, concurrency limit exceeded]
             durationMinutes: 1
-            description: Observed 502 upstream availability, context-window, and incomplete-stream failures briefly cool down the selected account.
+            description: 明确命中 502 上游不可用、过载或并发限制时短时冷却当前账号。
           - statusCode: 503
-            keywords: [upstream service temporarily unavailable, upstream request failed, temporarily unavailable]
+            keywords: [upstream service temporarily unavailable, upstream request failed, service temporarily unavailable, temporarily unavailable, overloaded, concurrency limit exceeded]
             durationMinutes: 1
-            description: Observed 503 temporary upstream availability failures briefly cool down the selected account.
+            description: 明确命中 503 上游暂时不可用、过载或并发限制时短时冷却当前账号。
+          - statusCode: 504
+            keywords: [concurrency limit exceeded, upstream service temporarily unavailable, input must be a list]
+            durationMinutes: 1
+            description: 明确命中 504 上游并发限制、暂时不可用或 Responses input 列表兼容错误时短时冷却当前账号。
           - statusCode: 524
-            keywords: [upstream request failed, missing_required_parameter, encrypted_content]
+            keywords: [upstream request failed, service temporarily unavailable, overloaded, concurrency limit exceeded]
             durationMinutes: 1
-            description: Observed 524 upstream request and encrypted-content failures briefly cool down the selected account.
+            description: 明确命中 524 上游不可用、过载或并发限制时短时冷却当前账号。
 
 pool:
   groupName: unidesk-codex-pool