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本页记录 @deepseek-ai/dsh-tool-todo 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。
源码：packages/todo/tool-todo/src/types.ts
TodoItem：一条列表项
/**
* 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。