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待办事项跟踪提供了一种结构化的方式来管理任务并向用户显示进度。Claude Agent SDK 包含内置的待办事项功能,有助于组织复杂的工作流程并让用户了解任务进展情况。
待办事项遵循可预测的生命周期:
pending 状态,当任务被识别时in_progress 状态,当工作开始时SDK 会自动为以下情况创建待办事项:
import { query } from "@anthropic-ai/claude-agent-sdk";
for await (const message of query({
prompt: "优化我的 React 应用性能并使用待办事项跟踪进度",
options: { maxTurns: 15 }
})) {
// 待办事项更新会反映在消息流中
if (message.type === "tool_use" && message.name === "TodoWrite") {
const todos = message.input.todos;
console.log("待办事项状态更新:");
todos.forEach((todo, index) => {
const status = todo.status === "completed" ? "✅" :
todo.status === "in_progress" ? "🔧" : "❌";
console.log(`${index + 1}. ${status} ${todo.content}`);
});
}
}import { query } from "@anthropic-ai/claude-agent-sdk";
class TodoTracker {
private todos: any[] = [];
displayProgress() {
if (this.todos.length === 0) return;
const completed = this.todos.filter(t => t.status === "completed").length;
const inProgress = this.todos.filter(t => t.status === "in_progress").length;
const total = this.todos.length;
console.log(`\n进度:${completed}/${total} 已完成`);
console.log(`当前正在处理:${inProgress} 个任务\n`);
this.todos.forEach((todo, index) => {
const icon = todo.status === "completed" ? "✅" :
todo.status === "in_progress" ? "🔧" : "❌";
const text = todo.status === "in_progress" ? todo.activeForm : todo.content;
console.log(`${index + 1}. ${icon} ${text}`);
});
}
async trackQuery(prompt: string) {
for await (const message of query({
prompt,
options: { maxTurns: 20 }
})) {
if (message.type === "tool_use" && message.name === "TodoWrite") {
this.todos = message.input.todos;
this.displayProgress();
}
}
}
}
// 使用方法
const tracker = new TodoTracker();
await tracker.trackQuery("构建一个完整的身份验证系统并使用待办事项");