Structured work tracking methodology using Plans. Use when creating, managing, reviewing, or delegating plans for significant work. Covers plan lifecycle (draft, approved, in_progress, completed, archived), folder structure, approval authority, cross-agent delegation, and task tracking. Use when a user asks to create a plan, track work, delegate tasks to sub-agents, or review plan status.

使用计划进行结构化工作跟踪，适用于创建、管理、审查或委派重要工作的计划。涵盖计划生命周期（草稿、已批准、进行中、已完成、已归档）、文件夹结构、审批权限、跨代理委派和任务跟踪。当用户要求创建计划、跟踪工作、将任务委派给子代理或审查计划状态时使用。