Turn a feature idea or rough notes into researched, dependency-ordered checkbox tasks appended to the project's roadmap file - every task grounded in the actual codebase and carrying acceptance criteria plus a verification command, so an unattended session can execute it. Use this skill whenever the user says "add this to the backlog", "add it to the roadmap", "plan these tasks", "break this down into tasks", "capture this as roadmap tasks", "turn these notes into a task list", or "/backlog-planner" - even if they do not name the skill. Not for executing tasks (goal-runner, task-executor, autopilot) - this writes the plan only.
