选择工具

使用 tool 作为“工具选择”可以控制模型调用的特定工具。以下示例通过结构化输出应用场景强调了这一点，其中要求以一致的方式格式化回复。

tool_config = {
    "toolChoice": {
        "tool": { "name" : "extract_recipe"}
    },
    "tools": [
        {
            "toolSpec": {
                "name": "extract_recipe",
                "description": "Extract recipe for cooking instructions",
                "inputSchema": {
                    "json": {
                        "type": "object",
                        "properties": {
                            "name": {
                                "type": "string",
                                "description": "Name of the recipe"
                            },
                            "description": {
                                "type": "string",
                                "description": "Brief description of the dish"
                            },
                            "ingredients": {
                                "type": "array",
                                "items": {
                                    "type": "string",
                                    "description": "Name of ingredient"
                                }
                            }
                        },
                        "required": ["name", "description", "ingredients"]
                    }
                }
            }
        }
    ]
}

使用 any 作为“工具选择”可以确保每次至少调用一个工具。虽然具体调用哪个工具的决定权由模型决定，但总会返回一个工具。以下示例重点介绍了在 API 选择端点应用场景中使用 any 作为“工具选择”的情况。在要求模型返回特定工具时，本例会有所帮助。

tool_config = {
    "toolChoice": {
        "any": {}
    },
    "tools": [
         {
            "toolSpec": {
                "name": "get_all_products",
                "description": "API to retrieve multiple products with filtering and pagination options",
                "inputSchema": {
                    "json": {
                        "type": "object",
                        "properties": {
                            "sort_by": {
                                "type": "string",
                                "description": "Field to sort results by. One of: price, name, created_date, popularity",
                                "default": "created_date"
                            },
                            "sort_order": {
                                "type": "string",
                                "description": "Order of sorting (ascending or descending). One of: asc, desc",
                                "default": "desc"
                            },
                        },
                        "required": []
                    }
                }
            }
        },
        {
            "toolSpec": {
                "name": "get_products_by_id",
                "description": "API to retrieve retail products based on search criteria",
                "inputSchema": {
                    "json": {
                        "type": "object",
                        "properties": {
                            "product_id": {
                                "type": "string",
                                "description": "Unique identifier of the product"
                            },
                        },
                        "required": ["product_id"]
                    }
                }
            }
        }
    ]
}

使用 auto 作为“工具选择”是工具支持的默认功能，允许模型决定何时调用工具以及调用多少工具。如果未在请求中包含“工具选择”，就会发生这样的行为。

以下示例重点介绍了一个聊天机器人应用场景。在该场景中，您可能希望让模型在互联网上搜索最新信息，或者直接回复用户。这种“工具选择”功能提供了灵活性，将推理留给了模型。

tool_config = {
    "toolChoice": {
        "auto": {}
    },
    "tools": [
         {
            "toolSpec": {
                "name": "search",
                "description": "API that provides access to the internet",
                "inputSchema": {
                    "json": {
                        "type": "object",
                        "properties": {
                            "query": {
                                "type": "string",
                                "description": "Query to search by",
                            },
                        },
                        "required": ["query"]
                    }
                }
            }
        }
    ]
}