get_rubric(
state: Annotated[dict[str, Any], InjectedState],
) -> RubricSnapshotRead criteria when the latest state notice says a rubric is active.
Use this only when the latest goal/rubric state notice reports an active
rubric. Use get_goal when a goal is actionable; this tool only reports
whether criteria are active, the current criteria, and the latest grading
status.