Pure socratic interrogation with NO project artifacts at all — no codebase, no CONTEXT.md, no ADRs to reference. One question at a time, walk the decision tree, recommend an answer for each branch. Rare edge case — most grilling happens inside a project, so use grill-with-docs by default (it handles the no-CONTEXT.md case by creating one lazily). Use grill-me ONLY when the user is brainstorming entirely outside a codebase (a fresh idea before any code exists, a hypothetical, a non-software design problem).