export declare function normalizeText(value: string): string;
export declare function containsPhrase(value: string, phrase: string): boolean;
export declare function tokenize(value: string): string[];
export declare function overlapRatio(left: string[], right: string[]): number;
export declare function clamp(value: number, minimum?: number, maximum?: number): number;
export declare function compactWhitespace(value: string): string;
export declare function stripControlCharacters(value: string): string;
export declare function contentFingerprint(value: string): string;
/**
 * A bounded `"Name: message"` summary of a caught error, for persisting to
 * durable run/audit records (e.g. `consolidation_records.metadata`) where
 * `error.name` alone ("TypeError") gives no way to tell two different
 * failures apart. These are internal processing errors (an embedding
 * backend failure, a consolidation pipeline error), not raw user input, but
 * a library or driver error can still echo back a connection string,
 * file path, or other operational detail it was given -- `error.message`
 * is redacted the same way captured session text is (`sensitive-data.ts`)
 * before this becomes a relied-on diagnostics surface, and control
 * characters are stripped so a persisted record can't smuggle terminal
 * escape sequences into a human reviewer's tooling. Capped since a
 * pathological `.message` (e.g. a library that embeds a full stack trace)
 * should not balloon a persisted JSONB column unbounded.
 */
export declare function describeError(error: unknown, maxLength?: number): string;