// Types for src/card-grammar.js (#1079) — the hosted Worker imports it; the stdio door is plain JS.
export interface CardGrammarParam {
  name: string;
  kind: string;
  required: boolean;
  label: string;
  hint: string;
  options?: string[];
  accepts?: string[];
}
export interface CardGrammarCell {
  type: string;
  title: string;
  purpose: string;
  body: { kind: string; label: string; hint: string } | null;
  params: CardGrammarParam[];
  example: string;
}
export interface CardGrammar {
  how_to_read: string;
  line_shape: { template: string; multiline: string; pattern: string };
  cells: CardGrammarCell[];
  retired_params: string[];
  version: string;
}
export function describeCardGrammar(opts?: { cell?: string }): CardGrammar;