import type { ManualAuditLogInput } from '../interfaces/audit-entry.interface';
export type AuditInputErrorCode = 'AUDIT_INPUT_INVALID' | 'AUDIT_METADATA_TOO_LARGE';
/** A strict manual-input failure. Messages identify fields, never their values. */
export declare class AuditInputError extends Error {
    readonly code: AuditInputErrorCode;
    readonly field: string;
    readonly name = "AuditInputError";
    constructor(code: AuditInputErrorCode, field: string, detail: string);
}
/** Validate opt-in settings without changing existing logging defaults. */
export declare function validateManualAuditOptions(options: {
    strictManualValidation?: boolean;
    maxMetadataBytes?: number;
}): void;
/** Validate identity without normalizing or trimming the value to be stored. */
export declare function validateManualIdentity(value: unknown, field: string, required?: boolean): void;
/** Validate event shape; validate merged context metadata separately before redaction. */
export declare function validateManualAuditInput(input: unknown): asserts input is ManualAuditLogInput;
/**
 * Validate JSON data before recursive redaction. Reject silent JSON coercion or
 * omission; valid Dates retain JSON's normal ISO serialization. Shared references
 * are permitted, but an object cannot refer to an ancestor in the current path.
 */
export declare function validateManualMetadata(value: unknown, path?: string): void;
/** Apply the size budget to the final redacted JSON, without truncating evidence. */
export declare function enforceManualMetadataSize(json: string | null, maxMetadataBytes?: number): void;
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