import type { HarnessSession } from "#harness/types.js";
import type { InputRequest } from "#shared/input.js";
import type { JsonObject } from "#shared/json.js";
export { bumpSessionRuntimeUsageLimits } from "#harness/turn-tag-state.js";
export type SessionUsageLimitCheck = {
    readonly kind: "within";
} | {
    readonly kind: "ask";
    readonly request: InputRequest;
} | {
    readonly kind: "fail";
    readonly code: string;
    readonly details: JsonObject;
    readonly message: string;
};
/** Whether the session may call the model, may ask to continue, or must fail. */
export declare function checkSessionUsageLimit(input: {
    readonly canAsk: boolean;
    readonly session: HarnessSession;
    readonly turnSequence: number;
}): SessionUsageLimitCheck;