export type IncomingRoute = "acp" | "legacy" | "ignore";
/**
 * Classify a parsed inbound frame.
 *  - "acp"    → hand to the ACP server (only when ACP is active)
 *  - "legacy" → hand to the native gateway handler (a valid AgentRpcRequest)
 *  - "ignore" → neither; drop with a warning
 */
export declare function classifyIncomingMessage(parsed: unknown, acpActive: boolean): IncomingRoute;
