JianFeeeee
2722d76095
fix(llm): max_tokens 截断不再静默降级成空参数
长参数工具调用(整段脚本/大 JSON)被 core.llm.max_tokens 从中间切断时,
上游回 finish_reason=length,而旧实现把这个信号整个丢掉:残缺 JSON 解析失败
后静默降级成空 map,工具只看到参数为空并报 'path is required'。模型因此完全
看不出真因,原样重试四遍、次次撞同一堵墙(2026-09-19 实测 4 次 files_write 失败)。
注:files_read 并未失败——是写挂之后模型反复重写把读卷进同一轮,看起来像两者都报错。
改法:
- finish_reason=length 时不再静默降级,改为塞入 __truncated_error 指引,
告诉模型「参数被截断 + 请拆成多次调用/追加写 + 勿原样重试」;
- executeToolCallInner 见到该标记即短路,不拿空参数去调工具;
- 非截断的残缺 JSON 保持旧行为(避免把「厂商不回 finish_reason」误判成截断)。
回归测试 2 条钉死这两面。
2026-09-19 13:49:21 +08:00
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