interface InputEventLike {
    type: 'input';
    text: string;
    images?: unknown[];
    source: 'interactive' | 'rpc' | 'extension';
}
interface PiLike {
    on: (event: 'input', handler: (event: InputEventLike, ctx: any) => void) => void;
    /** Update the live session display name (pi's editor label). Present in
     *  interactive mode; optional so the extension stays inert where it's not. */
    setSessionName?: (name: string) => void;
}
/**
 * Register the goal-capture handler on `pi`.
 *
 * Returns immediately (inert) when CRTR_NODE_ID is absent. The `input` handler
 * is the whole extension: on the first interactive message of a goal-less node,
 * persist it as the goal.
 */
export declare function registerCanvasGoalCapture(pi: PiLike): void;
export default registerCanvasGoalCapture;