/**
 * While OpenTUI owns the screen it repaints only its own framebuffer region.
 * Anything printed straight to the tty lands in cells the renderer never
 * repaints, so the fragment sticks there for the rest of the session — that is
 * the stray column of leftover text along the right edge.
 *
 * Core modules still reach for `console.*` on rare paths (a permission error, a
 * provider capability warning, a plan dump), and any of them can fire mid-turn.
 * This guard routes those calls to a log file instead of the terminal.
 *
 * Only `console.*` is intercepted, never the std stream writers themselves: the
 * renderer emits frames straight through the stream, so patching that would
 * blank the UI.
 */
export interface ConsoleGuardOptions {
    readonly logDir: string;
    /** Receives every captured message, for optional in-app surfacing. */
    readonly onCapture?: ((level: string, message: string) => void) | undefined;
}
export declare function installConsoleGuard(options: ConsoleGuardOptions): () => void;