export type SurfaceKind = 'hook' | 'service' | 'startup';
export type MvpCategory = 'core' | 'quiet' | 'gone' | 'legacy_retire';
export declare const VALID_SURFACE_KINDS: readonly SurfaceKind[];
export declare const VALID_MVP_CATEGORIES: readonly MvpCategory[];
export interface PluginSurfaceEntry {
    id: string;
    kind: SurfaceKind;
    category: MvpCategory;
    enabledByDefault: boolean;
    since: string;
    description: string;
    disabledReason?: string;
}
export interface SurfaceRegistryValidationResult {
    valid: boolean;
    errors: string[];
    warnings: string[];
}
export declare const PLUGIN_SURFACE_REGISTRY: readonly PluginSurfaceEntry[];
export declare function validateSurfaceRegistry(registry: readonly PluginSurfaceEntry[]): SurfaceRegistryValidationResult;
export declare function getEnabledSurfaces(registry: readonly PluginSurfaceEntry[], overrides?: Record<string, boolean>): PluginSurfaceEntry[];
export declare function getSurfacesByCategory(registry: readonly PluginSurfaceEntry[], category: MvpCategory): PluginSurfaceEntry[];
export declare function getSurfacesByKind(registry: readonly PluginSurfaceEntry[], kind: SurfaceKind): PluginSurfaceEntry[];
export declare function findUnclassifiedSurfaces(registryIds: readonly string[], actualSurfaceIds: readonly string[]): string[];
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