/**
 * Decide whether ↑/↓ in the composer should recall prompts or scroll chat.
 *
 * Classic CLAI: bare ↑/↓ at the line boundary walks prompt history (including
 * empty input). Wheel/trackpad still scrolls the transcript via mouse handlers.
 * Only rapid arrow *bursts* (trackpad emulating keys without mouse reporting)
 * are treated as chat scroll so history remains the default for deliberate keys.
 */
export interface ArrowIntentInput {
    readonly chord: string;
    readonly plainText: string;
    readonly line: number;
    readonly lineCount: number;
    readonly menuOpen: boolean;
    readonly isBrowsingHistory: boolean;
    /** Count of ↑/↓ presses in a short window (trackpad→arrow emulation). */
    readonly burstCount: number;
}
export type ArrowIntent = "scroll-chat" | "history" | "ignore";
/** Trackpad-as-arrows often fires several key repeats within ~100ms. */
export declare const ARROW_BURST_THRESHOLD = 3;
export declare const ARROW_BURST_WINDOW_MS = 80;
export declare function resolveArrowIntent(input: ArrowIntentInput): ArrowIntent;