import type { Readable, Writable } from "node:stream";
import type { AgentSession, CommandDefinition, CommandDrivers, InstructionInjector } from "./contracts.js";
import type { ContributionRegistry } from "./contributions.js";
export type RpcCommandName = "prompt" | "steer" | "followUp" | "abort" | "state" | "messages" | "setModel" | "compact" | "switchSession" | "forkSession" | "cloneSession" | "checkout" | "command";
export interface RpcRequest {
    readonly id: string | number;
    readonly command: RpcCommandName;
    readonly params?: Record<string, unknown>;
}
export interface RpcSessionFactory {
    createSession(id?: string): AgentSession | Promise<AgentSession>;
    readonly commands?: readonly CommandDefinition[];
    /** Host-opt-in driver capabilities forwarded to contributed commands on the
     *  `command` execution context. Absent ⇒ context shape unchanged. */
    readonly drivers?: CommandDrivers;
    /** Optional registry for resolving `instructionInjectors` names in `prompt`/`followUp`
     *  params (Phase 30). Names resolve fail-closed. */
    readonly instructionInjectors?: ContributionRegistry<InstructionInjector>;
}
export interface RpcServerOptions extends RpcSessionFactory {
    readonly stdin: Readable;
    readonly stdout: Writable;
}
export declare function runRpcServer(options: RpcServerOptions): Promise<void>;
export declare function parseRpcRequest(value: unknown): RpcRequest;