/**
 * ACP error classification helpers.
 *
 * The agent side of an ACP connection signals "I cancelled the turn" or
 * "I need you to authenticate first" through JSON-RPC errors with specific
 * codes (and, in older agents, only through error messages). Callers that
 * react differently to those two conditions vs. real failures end up with
 * fragile ad-hoc detectors; these helpers centralize the logic so it stays
 * consistent across the daemon, examples, and tests.
 */
/**
 * Returns true if `error` looks like the agent cancelled (or aborted) the
 * current operation rather than failing it. Matches JSON-RPC code `-32800`
 * (the ACP cancellation code) plus the common "cancelled" / "canceled" /
 * "aborted" message patterns emitted by older agents.
 */
export declare function isAcpCancelled(error: unknown): boolean;
/**
 * Returns true if `error` is the agent telling the client "you must run
 * `authenticate` before I can do this". Matches JSON-RPC code `-32000`
 * plus messages containing both "auth" and "require".
 */
export declare function isAcpAuthRequired(error: unknown): boolean;