export declare const HOST_ADAPTER_CAPABILITY_CONTRACT = "agent-knock-knock/host-adapter-capabilities";
export declare const HOST_ADAPTER_CAPABILITY_VERSION = 1;
export declare const HOST_ADAPTER_SKILL_NAME = "agent-knock-knock";
export interface HostAdapterCapabilityCommand {
    readonly name: string;
    readonly description: string;
    readonly acceptsArgs: boolean;
}
export interface HostAdapterCapabilityTool {
    readonly name: string;
    readonly description: string;
    readonly inputSchema: Readonly<Record<string, unknown>>;
}
/** Stable, secretless compatibility proof exchanged with native Host connectors. */
export interface HostAdapterCapabilityHandshakeV1 {
    readonly contract: typeof HOST_ADAPTER_CAPABILITY_CONTRACT;
    readonly version: typeof HOST_ADAPTER_CAPABILITY_VERSION;
    readonly catalogDigest: string;
    readonly toolCount: number;
    readonly toolNames: readonly string[];
    readonly skillName: typeof HOST_ADAPTER_SKILL_NAME;
    readonly skillDigest: string;
}
export interface HostAdapterCapabilitySource {
    readonly command: HostAdapterCapabilityCommand;
    readonly tools: readonly HostAdapterCapabilityTool[];
    readonly capabilityHandshake?: unknown;
}
/** Derive the v1 handshake from the authoritative ordered catalog and Skill. */
export declare function createHostAdapterCapabilityHandshake(source: Pick<HostAdapterCapabilitySource, "command" | "tools">, skillDocument: string): HostAdapterCapabilityHandshakeV1;
/**
 * Fail closed unless one adapter, bundled Skill, and completed registration
 * agree with the exact supported handshake version.
 */
export declare function verifyHostAdapterCapabilityHandshake(source: HostAdapterCapabilitySource, skillDocument: string, registeredToolNames?: readonly string[]): HostAdapterCapabilityHandshakeV1;