/**
 * MetamorphosisEngine interface — lifecycle hooks for self-evolution proposals.
 *
 * Extracted from postprocessor/metamorphosis/ for neutral access by kernel.
 */
export interface MetamorphosisProposal {
    id: string;
    type: 'add' | 'modify' | 'remove';
    target: string;
    description: string;
    rationale: string;
    impact: 'low' | 'medium' | 'high';
}
export interface MetamorphosisEngine {
    /** Human-readable engine name (for logging) */
    name: string;
    /** Called when PostProcessor enters a phase */
    onPhase?(phase: string, context: unknown): Promise<void>;
    /** Called when a metamorphosis proposal is generated */
    onProposal?(proposal: MetamorphosisProposal): Promise<void>;
}