import type { InterruptResponse } from "../runtime/interrupts.js";
/** What a `std::guard` interrupt carries (see docs/site/guide/guards.md,
 *  "The interrupt payload"). */
export type GuardTripData = {
    dimension: "cost" | "time";
    limit: number;
    spent: number;
    label: string | null;
    draftValue: unknown;
};
export declare function isGuardTrip(effect: string, data: unknown): data is GuardTripData;
/** Which guard tripped and what it spent against its limit. */
export declare function describeGuardTrip(data: GuardTripData): string;
/** What a reject may give back. The draft is a preview of the innermost
 *  saved draft; a `finalize` can replace it, so it is not a promise. */
export declare function draftNote(data: GuardTripData): string;
/** The three ways to answer a trip, in the order the form lists them. */
export type GuardChoice = "grant" | "removeLimit" | "reject";
export declare function guardChoices(data: GuardTripData): {
    choice: GuardChoice;
    label: string;
}[];
export declare function amountPrompt(data: GuardTripData): string;
export declare const MESSAGE_PROMPT = "Message to the model (optional)";
/** The amount a person typed, in the dimension's unit: dollars, or
 *  milliseconds written as the guide's unit literals (`100ms`, `30s`,
 *  `2m`, `1h`) or a bare number. Null when it is not an amount. */
export declare function parseAmount(dimension: "cost" | "time", text: string): number | null;
/** Why a grant of `amount` would be refused by the runtime, or null when
 *  it clears the trip. The runtime throws on an answer that leaves the
 *  tripped budget exceeded, since the guard would trip again at once. */
export declare function checkGrant(data: GuardTripData, amount: number): string | null;
/** The response the runtime understands for a choice: `approve` with a
 *  grant on the tripped dimension, with its disarm, or `reject`. */
export declare function guardResponse(data: GuardTripData, choice: GuardChoice, amount: number | null, message: string): InterruptResponse;