import type { MultiModelConfig } from '@zhixuan92/multi-model-agent-core';
/** A running server handle returned by startServe(). */
interface ServeHandle {
    /** The port the server is listening on (useful when port=0 for ephemeral). */
    port: number;
    /**
     * Gracefully shut down the server.
     * Removes any registered SIGTERM/SIGINT handlers to prevent leaks.
     * After this resolves, the process is no longer listening and may exit safely.
     */
    stop(): Promise<void>;
}
/**
 * Wait for in-flight tasks to finish, bounded by `server.limits.shutdownDrainMs`.
 *
 * Shutdown already refuses new dispatches before this runs, so the set can only
 * shrink. Polling is the right shape here rather than a completion hook: the
 * registry is the single source of truth for what is running, and a hook would
 * be a second bookkeeping path that could disagree with it.
 *
 * Returns after the set empties or the budget expires — never rejects, because a
 * drain that fails must not turn a graceful shutdown into a crash. What remains
 * is reported, so an operator can see the work that did not get to finish.
 */
export declare function drainInFlightTasks(registry: {
    allInFlight?: () => unknown[];
} | undefined, budgetMs: number, stderr: (s: string) => boolean): Promise<void>;
/**
 * Start the HTTP server with the given config.
 *
 * Registers SIGTERM and SIGINT handlers that drain in-flight requests and
 * exit the process cleanly: new dispatches are refused immediately, then the
 * server waits up to `server.limits.shutdownDrainMs` for what is already
 * running to finish. A second signal skips the remaining wait.
 *
 * @param config  Full MultiModelConfig (includes agents.*, defaults, diagnostics,
 *                and server block).  startServer() inspects the agents.* field
 *                and enables real tool handlers when present.
 * @param exit    Process exit function — defaults to process.exit.
 *                Exposed so tests can suppress actual exits.
 */
export declare function startServe(config: MultiModelConfig, exit?: (code: number) => never, configPath?: string): Promise<ServeHandle>;
export {};
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