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fix: ensure arguments are replaced with '{}' if empty #4649

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Merged
liuruibin merged 1 commit into from
Jan 16, 2026
+4 −0
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fix: ensure arguments are replaced with '{}' if empty #4649

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4 changes: 4 additions & 0 deletions apps/application/flow/tools.py
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Original file line number Diff line number Diff line change
Expand Up @@ -359,6 +359,10 @@ async def _yield_mcp_response(chat_model, message_list, mcp_servers, mcp_output_

entry['arguments'] += part_args

# 若 arguments 为空字符串，替换为 '{}'
if entry['arguments'] == '':
entry['arguments'] = '{}'

# 尝试判断 JSON 是否完整（若 arguments 是 JSON），完整则提交到 tool_calls_info
try:
json.loads(entry['arguments'])
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