Task Planner

Decomposes a complex goal into a dependency-ordered, prioritized list of atomic subtasks, then tracks progress with TodoWrite.

Purpose

Break a complex goal into independent, atomic subtasks with clear done-conditions, identify dependencies and execution order, write all subtasks to TodoWrite, and begin execution in the correct sequence.

Trigger

Apply when:

• User says "plan this task", "break down task", "create a plan", "task decomposition", "how should I approach this"
• "分解任務", "制定計畫", "任務規劃", "幫我規劃"
• Any task with more than 3 distinct steps that have not yet been decomposed
• Before beginning work on a complex multi-file or multi-system change

Do NOT trigger for:

• Simple single-step tasks completable in one response
• Tasks already fully decomposed with an existing todo list