Preview the model-routing MAP for an intent without building anything. You give it a free-text INTENT — "build a CLI that…", "add a feature that…", "refactor X into Y" — and it invokes the `model-right-sizer` agent in BLUEPRINT-ONLY mode: decompose the work, score each piece, and emit a single schema-conformant JSON blueprint (task→model→effort→budget→ schema→confidence, per `schemas/blueprint.schema.json`), then STOP. No build, no file edits, no after-the-fact usage report — it is the what-would-this-cost / how-would-this-route preview lever, safe to run against any idea, and the JSON it returns is what an orchestrator parses to route dispatch. Read-only. Use when someone says "dry-run the right-sizer on …", "what's the map for …", "how would you route …", or "show me the blueprint for … before I build it".