/**
 * Signing Module
 *
 * Skills for message signing.
 */
import type { Skill } from "../skills/types";
export interface SignMessageRequest {
    /** Message to sign */
    message: string;
    /** Message encoding */
    encoding?: "utf8" | "hex" | "base64";
    /** Derivation tag for key selection */
    tag?: {
        label: string;
        id: string;
        domain: string;
        meta: Record<string, string>;
    };
}
export interface SignedMessage {
    address: string;
    pubKey: string;
    message: string;
    sig: string;
    derivationTag?: SignMessageRequest["tag"];
}
export interface SignMessageResponse extends Partial<SignedMessage> {
    error?: string;
}
/**
 * Sign a message using BSM (Bitcoin Signed Message) format.
 */
export declare const signMessage: Skill<SignMessageRequest, SignMessageResponse>;
/** All signing skills for registry */
export declare const signingSkills: Skill<SignMessageRequest, SignMessageResponse>[];