推理模型的提示词怎么写：developer message、分隔符与验收标准

const response = await client.responses.create({
  model: "gpt-5", // 换成你账号里可用的推理模型
  input: [
    {
      role: "developer",
      content: [
        {
          type: "input_text",
          text: [
            "Formatting re-enabled",
            "你是后端代码评审助手。",
            "只回答三部分：结论、证据、建议。",
            "证据必须引用用户给出的代码片段，不要补充没出现过的代码。",
          ].join("\n"),
        },
      ],
    },
    {
      role: "user",
      content: [{ type: "input_text", text: "这段重试逻辑有什么问题？" }],
    },
  ],
});

const task = [
  "<task>为 parse() 补充边界测试</task>",
  "<constraints>只允许修改 tests/ 目录，不要动实现代码</constraints>",
  "<context>",
  "  parse() 定义在 src/parser.ts:42，返回值可能是 null",
  "  现有用例只覆盖了正常输入",
  "</context>",
  "<acceptance>测试全绿，新增用例覆盖空字符串、超长输入和非法分隔符</acceptance>",
].join("\n");

let response = await client.responses.create({
  model: "gpt-5",
  store: true,
  input: [{ role: "user", content: [{ type: "input_text", text: task }] }],
});

// 工具执行完，把结果交回去，并指向上一条响应
response = await client.responses.create({
  model: "gpt-5",
  store: true,
  previous_response_id: response.id,
  input: [
    {
      role: "user",
      content: [{ type: "input_text", text: "这是工具结果：" + toolResult }],
    },
  ],
});

// 第一段：规划者。只要步骤，不要实现
const plan = await client.responses.create({
  model: "gpt-5", // 推理模型
  input: [
    {
      role: "developer",
      content: [
        {
          type: "input_text",
          text: "你是规划者。只输出 3 到 7 条可执行的步骤，每条一句话，不要写代码。",
        },
      ],
    },
    { role: "user", content: [{ type: "input_text", text: task }] },
  ],
});

// 第二段：执行者。一次只做一步，范围写死
const cheapModel = "gpt-4o-mini"; // 换成你账号里最便宜的够用模型
for (const step of steps) {
  await client.responses.create({
    model: cheapModel,
    input: [
      {
        role: "developer",
        content: [
          {
            type: "input_text",
            text: "你是执行者。只完成当前这一步，不要扩大范围，不要重构其他文件。",
          },
        ],
      },
      { role: "user", content: [{ type: "input_text", text: step }] },
    ],
  });
}