export declare const PLAN_REMINDER_FIRST_STEP = 15;
export declare const PLAN_REMINDER_STEP_INTERVAL = 10;
export declare const PLAN_REMINDER_TOAST = "reminder sent \u00B7 plan mode";
export interface PlanReminderGate {
    readonly isPlanMode: boolean;
    readonly planApproved: boolean;
    readonly hasDraftPlan: boolean;
    readonly productiveStep: number;
    readonly alreadyRemindedAt: ReadonlySet<number>;
}
export declare function isPlanReminderMilestone(step: number): boolean;
export declare function shouldAttachPlanModeReminder(opts: PlanReminderGate): boolean;
export interface PlanReminderTextOpts {
    readonly step: number;
    readonly kindHint?: "pentest" | "coding" | "general" | undefined;
}
export declare function planModeResearchReminder(opts: PlanReminderTextOpts): string;
export declare function maybeAppendPlanModeReminder(toolContent: string, opts: PlanReminderGate & PlanReminderTextOpts): {
    content: string;
    reminded: boolean;
};