import type { UserInstructions } from '../../types/index.js';
import type { ScaffoldWarning } from '../../types/index.js';
/**
 * Load user instructions from three layers with later-overrides-earlier precedence.
 * Layer 1 (global): .scaffold/instructions/global.md
 * Layer 2 (per-step): .scaffold/instructions/<step>.md
 * Layer 3 (inline): --instructions CLI flag value
 *
 * Returns each layer separately so the assembly engine can display them with
 * clear source provenance.
 */
export declare function loadInstructions(projectRoot: string, step: string, inline?: string): {
    instructions: UserInstructions;
    warnings: ScaffoldWarning[];
};
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