From e04d46db2ce50f999892ded7f0e49f9959a00686 Mon Sep 17 00:00:00 2001
From: "Junyan Qin (Chin)" <rockchinq@gmail.com>
Date: Sun, 30 Mar 2025 23:51:53 +0800
Subject: [PATCH] perf(claude): ensure system message removed (#867) (#1255)

---
 pkg/provider/modelmgr/requesters/anthropicmsgs.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkg/provider/modelmgr/requesters/anthropicmsgs.py b/pkg/provider/modelmgr/requesters/anthropicmsgs.py
index b03e536d..a6164257 100644
--- a/pkg/provider/modelmgr/requesters/anthropicmsgs.py
+++ b/pkg/provider/modelmgr/requesters/anthropicmsgs.py
@@ -59,9 +59,11 @@ class AnthropicMessages(requester.LLMAPIRequester):
             if m.role == "system":
                 system_role_message = m
 
-                messages.pop(i)
                 break
 
+        if system_role_message:
+            messages.pop(i)
+
         if isinstance(system_role_message, llm_entities.Message) \
             and isinstance(system_role_message.content, str):
             args['system'] = system_role_message.content