浅谈OpenAIClaude LLM Tools的额外配置

前言

• https://platform.openai.com/docs/guides/function-calling?api-mode=chat&strict-mode=disabled#additional-configurations
• https://docs.anthropic.com/en/docs/build-with-claude/tool-use/overview#forcing-tool-use

tool_choice

1. “none” 就是不用tools， tools传入也为味空
2. auto，就是可能调用tool，或者不调用，agent loop，很多写的范式都是，调用tool，就执行拿到结果进入下一个loop，如果不调用tool就直接
3. required：必须使用其中一个到多个工具，这样的agentloop可能就是tools里有对应的类似于stopTool，调用到就agent ending
4. forced function： 只调用一个特定tool。

claude也是一样的，就是传入参数 required 为any了

parallel_tool_calls

parallel_tool_calls = True的时候返回的ChatCompletionMessage中的choice.message.tool_calls有多个 toolcall

为False的时候， 只能每次调用一个tool

Strict mode

“strict”= true的时候更能保证json output的输出，这个参数感觉大家用的很少，实际上为true和false，对于tool的parameters写法很多都可以等价

比如：

{"type": "function","function": {"name": "get_weather","description": "Retrieves current weather for the given location.","parameters": {"type": "object","properties": {"location": {"type": "string","description": "City and country e.g. Bogotá, Colombia"},"units": {"type": "string","enum": ["celsius", "fahrenheit"],"description": "Units the temperature will be returned in."}},"required": ["location"],}}
}

这个是我们平时很爱写的写法，看到的基本上都是这种，只会把一定需要的参数写为required中，但openai的"strict"= true， 对type做一下修改是一样的效果

{"type": "function","function": {"name": "get_weather","description": "Retrieves current weather for the given location.","strict": true,"parameters": {"type": "object","properties": {"location": {"type": "string","description": "City and country e.g. Bogotá, Colombia"},"units": {"type": ["string", "null"],"enum": ["celsius", "fahrenheit"],"description": "Units the temperature will be returned in."}},"required": ["location", "units"],"additionalProperties": false}}
}

加入 "null"的type