import type { SkillAuditResult, SkillCandidate, SkillProviderFailureCode } from '../types.js';
export declare class SkillProviderError extends Error {
    readonly code: SkillProviderFailureCode;
    readonly retryAfterSeconds: number | null;
    constructor(code: SkillProviderFailureCode, retryAfterSeconds?: number | null);
}
export declare function verifiedOfficialRepositories(values?: string[]): ReadonlySet<string>;
export declare function readSkillProviderJson(response: Response): Promise<unknown>;
export declare function parseSkillsShCompatibilityResponse(value: unknown, provider: string, expected: {
    query: string;
    limit: number;
}, officialRepositories: ReadonlySet<string>): SkillCandidate[];
export declare function parseSkillsShV1SearchResponse(value: unknown, provider: string, expected: {
    query: string;
    limit: number;
}, officialRepositories: ReadonlySet<string>): SkillCandidate[];
export declare function parseSkillsShV1CuratedResponse(value: unknown, provider: string, officialRepositories: ReadonlySet<string>): SkillCandidate[];
export declare function parseSkillsShV1AuditResponse(value: unknown, expected: {
    source: string;
    slug: string;
}): SkillAuditResult;
/** Strictly parse Kiokuko's own cached candidate shape. */
export declare function parseSkillCandidates(value: unknown, provider: string, provenance: 'search' | 'curated'): SkillCandidate[];
export declare function cacheKey(input: {
    provider: string;
    query: string;
    owner?: string | null;
    mode: string;
}): string;
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