import type { InteractiveModeContext } from "./types";
/**
 * Owns the ghost-text next-prompt prediction lifecycle for interactive mode.
 *
 * After each agent turn ends (and only when `promptSuggestions` is enabled
 * and the composer is empty), a smol-model prediction of the user's next
 * prompt is generated in the background. The result renders as dim ghost
 * text in the empty composer via the autocomplete provider's inline hint;
 * Tab accepts it, typing dismisses it, and a new turn clears it.
 */
export declare class PromptSuggestionController {
    #private;
    constructor(ctx: InteractiveModeContext);
    /** Current suggestion to render as ghost text, or null. */
    get current(): string | null;
    /** Drop the current suggestion and invalidate any in-flight generation. */
    clear(): void;
    /** A new agent turn started; any pending suggestion is stale. */
    onAgentStart(): void;
    /**
     * Editor content changed. A non-empty composer means the user is writing
     * their own prompt: dismiss the suggestion and cancel pending generation.
     */
    notifyEditorChanged(text: string): void;
    /**
     * Agent turn ended; kick off background generation when the feature is
     * enabled and the composer is idle and empty.
     */
    onAgentEnd(): void;
    /**
     * Tab handler for the composer: accept the suggestion when the composer
     * is empty. Returns true when Tab was consumed.
     */
    tryAcceptOnTab(text: string): boolean;
}