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deepseek-harness/docs/subsystems/todo.zh.md
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# Todo
[English](todo.md) | 中文
本页记录 [`@deepseek-ai/dsh-tool-todo`](../../packages/todo/tool-todo/README.zh.md) 拥有的持久 todo 词汇。面向模型的工具会整体替换一个 agent(智能体)会话的列表;该包还拥有事件声明、回放投影和不变量配套插件。工具行为与配置见[包 README](../../packages/todo/tool-todo/README.zh.md)。
源码:[`packages/todo/tool-todo/src/types.ts`](../../packages/todo/tool-todo/src/types.ts)
## `TodoItem`:一条列表项
```ts type-equiv
/**
* One entry in an agent's todo list — the unit of the `todo/write`
* whole-list snapshot declared by this package.
*
* Deliberately minimal: a human-readable `content` line and a three-state
* `status`. No id, priority, or `activeForm` — the list is replaced wholesale
* on every write (last-write-wins), so entries need no stable identity. The
* three statuses describe the complete portable lifecycle needed by model and
* UI consumers.
*/
interface TodoItem {
/** What this task is — a short imperative line shown in the UI. */
content: string
/** Lifecycle state. `in_progress` marks a task being worked now; parallel work may mark several. */
status: 'pending' | 'in_progress' | 'completed'
}
```
## 持久事件与不变量
该包通过声明合并把 `todo/write: { todos: TodoItem[] }` 加入 `SessionEventMap`。此事件仅写入日志,并携带完整替换列表;生成的[持久化目录](../persistence-catalog.zh.md#todowrite--log-only)会记录其声明位置。该包的不变量配套插件会单次遍历校验现有会话和新发布的会话,随后增量追踪已提交的轮次边界,使每个实时 `todo/write` 都能在追加前得到校验,而无需重新扫描日志。