[Bug]: Strict tool calling attaches no structural tag when the reasoning and tool parsers share a parser engine
![[Bug]: Strict tool calling attaches no structural tag when the reasoning and tool parsers share a parser engine](https://www.chat-gpts.plus/wp-content/uploads/2026/09/53745-ee48e740-768x403.jpg)
当 vLLM 的推理解析器(reasoning parser)与工具调用解析器(tool parser)指向同一个解析器引擎时,Strict Tool Calling 模式下可能不会附加结构约束标签(structural tag),导致模型输出不受 JSON Schema 约束。优先排查 --rea








