/**
 * CLI input validation helpers.
 *
 * Pure functions that validate user-provided CLI flags and exit with a
 * descriptive error when the input is invalid.  Extracted from cli.ts so
 * they can be unit-tested independently.
 */
export declare const IDENTIFIER_RE: RegExp;
export declare const VALID_AUTH_TYPES: readonly ["bearer", "header", "basic", "query"];
export declare const VALID_BODY_INSPECTION_MODES: readonly ["off", "warn", "block"];
export declare const VALID_POLICY_MODES: readonly ["enforce", "dry-run", "off"];
export declare const VALID_LOG_LEVELS: readonly ["debug", "info", "warn", "error"];
export declare const VALID_MCP_TRANSPORTS: readonly ["stdio", "streamable-http"];
/** Validate an identifier (name, service, etc.) used as a DB key or URL path segment. */
export declare function validateIdentifier(value: string, fieldName: string): void;
/** Validate a value is one of the allowed enum values. */
export declare function validateEnum<T extends string>(value: string, allowed: readonly T[], fieldName: string): T;
/** Validate a port number (1–65535). */
export declare function validatePort(value: number, fieldName: string): void;
/** Validate a positive integer. */
export declare function validatePositiveInt(value: number, fieldName: string): void;
/** Validate a non-negative float. */
export declare function validateNonNegativeFloat(value: number, fieldName: string): void;
/** Validate a rate limit string (e.g. 100/min) early, before storing. */
export declare function validateRateLimit(value: string): void;
/** Validate a comma-separated domain list. */
export declare function validateDomains(raw: string): string[];
/** Validate an ISO date string. */
export declare function validateIsoDate(value: string, fieldName: string): void;
/**
 * Convert a UTC timestamp from SQLite (e.g. "2026-03-09 00:31:38") to
 * the user's local time string.  SQLite's datetime('now') stores UTC but
 * omits the 'Z' suffix, so we append it before parsing so JavaScript's
 * Date constructor treats it as UTC rather than local.
 */
export declare function localTime(utcTimestamp: string): string;
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