export type SourceGroup = 'arxiv' | 'semantic_scholar' | 'github_repo' | 'github_code' | 'brave' | 'brave_news' | 'openalex' | 'crossref' | 'pubmed';
export interface EvidenceSource {
    source: SourceGroup;
    query: string;
    title: string;
    url: string;
    snippet: string;
    publishedAt?: string;
    rank: number;
}
export interface FailedAttempt {
    source: SourceGroup;
    query: string;
    reason: string;
    detail?: string;
}
export interface EvidencePack {
    sources: EvidenceSource[];
    failedAttempts: FailedAttempt[];
    generatedAt: string;
    totalQueries: number;
    budgetExceeded: boolean;
}
/** One row of the `## Sources used` table: which adapter group was queried,
 *  whether it returned usable data, and a short note (result count or failure
 *  reason). */
export interface SourceUsage {
    source: string;
    attempted: boolean;
    used: boolean;
    note?: string;
}
/**
 * Deterministic `## Sources used` table built straight from the EvidencePack —
 * the ground truth for which adapter groups were queried and which returned
 * data. This replaces parsing a worker-emitted markdown table: the /research
 * synthesis runs as a per-criterion loop where no single turn is the designated
 * "emit the sources table" turn, so the worker never reliably produces one and
 * the parsed table was always empty.
 */
export declare function summarizeSourcesUsed(pack: EvidencePack): SourceUsage[];
export declare const EVIDENCE_PACK_LIMITS: Readonly<{
    MAX_TOTAL_BYTES: number;
    MAX_PER_GROUP: 10;
    MAX_SNIPPET_CHARS: 500;
    MAX_TOTAL_SOURCES: 70;
}>;
export declare function dedupSources(input: EvidenceSource[]): EvidenceSource[];
export declare function applyBudget(inputSources: EvidenceSource[], failedAttempts: FailedAttempt[]): EvidencePack;
export declare function serializeEvidencePack(pack: EvidencePack): string;
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