Planning isn't about finding root cause — it's about committing to a course of action under constraints. In the same language, the primary plane becomes the decision / plan / tradeoff / risk roles — and the Grounding Contract holds: a decision that takes the primary plane must be grounded (hung on principles/load tests), or marked tentative (with "what would change this choice"), or left open.
规划不是找根因，而是在约束下选定一条行动路线。同一套语言里，主舞台变成 decision / plan / tradeoff / risk 角色——而 Grounding Contract 不变：一个决策占据主舞台，也必须 grounded（挂在准则/压测上）、或标为 tentative（带“什么会改变这个选择”）、或留作 open。