Problem-driven research loop — start from YOUR project or idea plus a pile of papers (even if insufficient), decompose it into a problem structure, map it onto the principle library, fill the gaps with targeted reading, and assemble a principle-grounded design. Iterates as you read more. Use when the user has a research problem or project to push forward — not just papers to absorb. Triggers: "improve my project", "I have an idea and some papers", "help me design X", "用这些论文迭代我的项目", "推进我的研究".
Sharpen a vague idea, a literature gap, or a stalled project into a GOOD research question — consequential, specific, falsifiable, feasible — BEFORE committing to a technical route. Produces a structured Question Card, then optionally hands off to /kw-explore to form the technical route. Triggers: "is this a good research question", "help me sharpen my question", "我这个想法值得做吗", "把想法变成研究问题", "问题挖掘 / 具象化", "帮我磨一下研究问题".
Single entry for the knowledge engine. Detects state and offers choices — fetch papers by id/DOI/title, absorb all new papers (L1→L2), run L3 synthesis. Use when the user says "process the knowledge base", "/kw", "fetch this paper", or drops new papers.
Scaffold a new knowledge engine workspace OR link to an existing shared knowledge base. Use when starting a new knowledge base or connecting a project to an existing one.