/**
 * Raised when flags or environment values resolve to an invalid app
 * configuration. Mapped to `SYS_EXITS.config` (78) by
 * {@link createSysExitFailureMapper} so misconfiguration stays distinct from
 * unexpected software failures (70).
 *
 * Apps may throw this class directly, subclass it (the mapper's `instanceof`
 * ladder matches subclasses), or keep their own error classes and enroll them
 * through the factory's options.
 */
export declare class CliConfigError extends Error {
    constructor(message: string, options?: ErrorOptions);
}
/**
 * Raised when input data — a payload, a file, a record — was well-formed as an
 * invocation but incorrect as data. Mapped to `SYS_EXITS.dataErr` (65) by
 * {@link createSysExitFailureMapper}.
 */
export declare class CliDataError extends Error {
    constructor(message: string, options?: ErrorOptions);
}
/**
 * Raised for a mis-invocation the parser accepted but the command surface
 * rejects — for example a stray positional token reaching a `$0` handler.
 * Mapped to `SYS_EXITS.usage` (64) by {@link createSysExitFailureMapper} by
 * error class, so the exit code never depends on whether a parser-level check
 * happened to surface first.
 */
export declare class CliUsageError extends Error {
    constructor(message: string, options?: ErrorOptions);
}
/**
 * The message plus its `cause` chain — a bare "fetch failed" names no host, but
 * its cause carries the address and errno an operator actually needs. Used for
 * the operator-facing one-liner on a `usage` / `config` exit, where a stack
 * trace through an app's own internals is pure noise.
 * @param error The failure to describe.
 * @returns The message chain, innermost cause last, joined by `←`.
 */
export declare function describeError(error: unknown): string;
//# sourceMappingURL=cliErrors.d.ts.map