/**
 * Validation shared by BotConfig loading and worker launch for the experimental
 * "attach a Codex TUI to an already-running App Server" mode.
 *
 * The endpoint is intentionally local-only. A BotMux configuration must never
 * turn a chat message into a client of an arbitrary network-hosted app-server:
 * credentials, query/hash components, and non-loopback WebSocket hosts are all
 * rejected. Unix sockets are the normal production route for a Codex App
 * Server on the same development machine.
 */
export interface ExistingAppServerConfig {
    endpoint: string;
}
/**
 * Return a canonical, safe-to-pass endpoint string or throw a configuration
 * error. The caller deliberately does not probe filesystem/socket liveness:
 * the Codex App may reconnect after BotMux has loaded config, and liveness is a
 * launch-time concern rather than a configuration-time one.
 */
export declare function normalizeExistingAppServerEndpoint(raw: unknown, label?: string): string;
export declare function normalizeExistingAppServerConfig(raw: unknown, label?: string): ExistingAppServerConfig | undefined;
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