import type { ActionSchema } from './action-schema.js';
/**
 * Generates a GBNF grammar that:
 *   - always starts at `root`;
 *   - accepts any interleaving of prose characters and bracketed cues;
 *   - restricts cue labels to the declared alternation set.
 *
 * The returned source is guaranteed to be <= the bridge's 64 KiB cap for
 * any reasonable schema.
 */
export declare function compileActionGrammar(schema: ActionSchema): string;