ツール呼び出し、最初から最後まで

import json, os
from openai import OpenAI

client = OpenAI(base_url="https://api.bricksum.com/v1", api_key=os.environ["KILN_API_KEY"])

tools = [{"type": "function", "function": {
    "name": "get_weather",
    "description": "Current weather for a city",  # required
    "parameters": {"type": "object", "properties": {"city": {"type": "string"}}, "required": ["city"]},
}}]
messages = [{"role": "user", "content": "What's the weather in Seoul?"}]

first = client.chat.completions.create(model="qwen3-32b", messages=messages,
                                       tools=tools, tool_choice="auto", max_tokens=800)
choice = first.choices[0]
# The model may answer without calling the tool, so this is a check, not an index.
if not choice.message.tool_calls:
    print(f'no tool call, finish_reason: "{choice.finish_reason}"')
    print("answer:", choice.message.content)
else:
    # One reply can carry several tool calls; answer every one of them.
    messages.append(choice.message)
    for call in choice.message.tool_calls:
        print("tool call:", call.function.name, call.function.arguments)
        messages.append({"role": "tool", "tool_call_id": call.id, "content": json.dumps({"temp_c": 27})})
    final = client.chat.completions.create(model="qwen3-32b", messages=messages, max_tokens=800)
    print("final:", final.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://api.bricksum.com/v1", apiKey: process.env.KILN_API_KEY });
const tools: OpenAI.ChatCompletionTool[] = [{ type: "function", function: {
  name: "get_weather",
  description: "Current weather for a city", // required
  parameters: { type: "object", properties: { city: { type: "string" } }, required: ["city"] },
}}];
const messages: OpenAI.ChatCompletionMessageParam[] = [
  { role: "user", content: "What's the weather in Seoul?" },
];

const first = await client.chat.completions.create({ model: "qwen3-32b", messages, tools, tool_choice: "auto", max_tokens: 800 });
// The model may answer without calling the tool, so this is a check, not an index.
const calls = first.choices[0].message.tool_calls ?? [];
if (calls.length === 0) {
  console.log('no tool call, finish_reason: "' + first.choices[0].finish_reason + '"');
  console.log("answer:", first.choices[0].message.content);
} else {
  // One reply can carry several tool calls; answer every one of them.
  messages.push(first.choices[0].message);
  for (const call of calls) {
    if (call.type !== "function") continue;
    console.log("tool call:", call.function.name, call.function.arguments);
    messages.push({ role: "tool", tool_call_id: call.id, content: JSON.stringify({ temp_c: 27 }) });
  }
  const final = await client.chat.completions.create({ model: "qwen3-32b", messages, max_tokens: 800 });
  console.log("final:", final.choices[0].message.content);
}