Johnnylin2121 模式判定（先于一切）
- 完整模式（多轮）：用户主动点名（"grill me"等触发词）。按下方完整流程执行到底。
- 轻量模式（单轮）：模型被动触发（匹配 description 中的被动条件）。 仅一轮：frontier 问题 ≤5 个，每问附推荐答案；结尾给三个选项让用户选—— 「继续深挖（进入多轮）/ 按推荐答案直接开工 / 取消」。
- 交易计划场景（由 trading-daily-review 盘后交易计划审查调用）： 决策树范围锁定在 方向/标的/入场逻辑/止损/仓位/时间框架，不扩散到无关分支，先给推荐答案。
完整流程（原版）
Interview the user relentlessly until you reach a shared understanding. Map this as a design tree: every decision branches into the decisions that hang off it.
Work the tree in rounds. The frontier is every decision whose prerequisites are already settled — the questions you can ask now without guessing at answers you haven't heard yet. Ask the whole frontier in one round: number each question and give your recommended answer. Then wait for the user's answers before the next round.
Each round the user answers reshapes the tree — settled decisions push the frontier outward and unblock questions that depended on them. Recompute the frontier and ask the next round. A question whose answer depends on another question still open in this round belongs to a later round, not this one.
Finding facts is your job, never the user's. When a frontier question needs a fact from the environment (filesystem, tools, etc.), dispatch a sub-agent to find it — don't ask the user for anything you could look up yourself. Don't block on it: a running exploration is an unsettled prerequisite, so only the questions downstream of it wait for the sub-agent to report — ask the rest of the frontier now. The decisions are the user's — put each to them and wait.
The session is done when the frontier is empty: every branch of the design tree visited, nothing left silently assumed. Do not act on it until the user confirms you have reached a shared understanding.