From bd5ec59b7cc3792a8ec3024a46d3da4fd307d94f Mon Sep 17 00:00:00 2001
From: fdc310 <82008029+fdc310@users.noreply.github.com>
Date: Sat, 21 Mar 2026 22:08:35 +0800
Subject: [PATCH] =?UTF-8?q?fix:The=20fix=20is=20in=20place=20=E2=80=94=20c?=
 =?UTF-8?q?ontent=20=3D=20''=20is=20now=20reset=20at=20the=20start=20of=20?=
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 =?UTF-8?q?=20from=20being=20duplicated=20across=20tool=20call=20and=20end?=
 =?UTF-8?q?-turn=20chunks.=20(#2060)?=
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---
 src/langbot/pkg/provider/modelmgr/requesters/anthropicmsgs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/langbot/pkg/provider/modelmgr/requesters/anthropicmsgs.py b/src/langbot/pkg/provider/modelmgr/requesters/anthropicmsgs.py
index 9394b73d..1428dc88 100644
--- a/src/langbot/pkg/provider/modelmgr/requesters/anthropicmsgs.py
+++ b/src/langbot/pkg/provider/modelmgr/requesters/anthropicmsgs.py
@@ -288,10 +288,10 @@ class AnthropicMessages(requester.ProviderAPIRequester):
             think_started = False
             think_ended = False
             finish_reason = False
-            content = ''
             tool_name = ''
             tool_id = ''
             async for chunk in await self.client.messages.create(**args):
+                content = ''
                 tool_call = {'id': None, 'function': {'name': None, 'arguments': None}, 'type': 'function'}
                 if isinstance(
                     chunk, anthropic.types.raw_content_block_start_event.RawContentBlockStartEvent