import type { Evidence } from './types';
/** sha256 of a whole file's utf8 content. `'MISSING'` if it can't be read. */
export declare function hashFile(rootDir: string, relPath: string): string;
/** Token-stream normalization: strips comments/whitespace, keeps semantics. */
export declare function normalizeForFreshness(source: string): string;
/** Raw + normalized sha256 pair for one symbol. `'MISSING'`/`'MISSING'` if unreadable or not found. */
export declare function hashSymbol(rootDir: string, relPath: string, symbolName: string): {
    raw: string;
    normalized: string;
};
export interface CollectEvidenceOptions {
    /** Directory relative paths are resolved against. Defaults to `process.cwd()`. */
    rootDir?: string;
    /** Relative file paths to hash whole. */
    files?: string[];
    /** Symbols to hash (raw + normalized), one file per symbol. */
    symbols?: Array<{
        filePath: string;
        symbolName: string;
    }>;
    branch?: string;
    commit?: string;
}
/**
 * Builds an `Evidence` bundle the way a client is expected to: hash the files
 * and symbols it's about to make claims about, right before sending them.
 * Identical algorithm to the local MCP Brain's `LocalFsResolver` — see the
 * module doc.
 */
export declare function collectEvidence(options: CollectEvidenceOptions): Evidence;