export type BuiltinLibraryItemKind = "prompt" | "package";
export interface BuiltinLibraryItemSpec {
    kind: BuiltinLibraryItemKind;
    /**
     * Stable identifier for documentation and troubleshooting (not used by installer).
     */
    id: string;
    /**
     * Path relative to setup-core `assets/` directory.
     */
    repoPath: string;
    labels?: string[];
}
export interface BuiltinLibraryManifestV1 {
    version: 1;
    items: BuiltinLibraryItemSpec[];
}
export interface BuiltinLibraryResolvedItem extends BuiltinLibraryItemSpec {
    repo: string;
    labels: string[];
}
export interface BuiltinLibraryResolvedManifest extends BuiltinLibraryManifestV1 {
    assetsRoot: string;
    manifestPath: string;
    items: BuiltinLibraryResolvedItem[];
}
export declare class BuiltinLibraryManifestError extends Error {
    constructor(message: string, options?: {
        cause?: unknown;
    });
}
export declare function tryLoadBuiltinLibraryManifest(): Promise<BuiltinLibraryResolvedManifest | null>;
export declare function loadBuiltinLibraryManifest(): Promise<BuiltinLibraryResolvedManifest>;