import { z } from "zod";
import type { SandboxNotice } from "../../events/sandbox-notice.js";
export declare const HANDOFF_MODES: readonly ["carry", "trim", "summary"];
export declare const HandoffModeSchema: z.ZodEnum<{
    carry: "carry";
    summary: "summary";
    trim: "trim";
}>;
export type HandoffMode = z.infer<typeof HandoffModeSchema>;
export declare const LimitHandoffSchema: z.ZodEnum<{
    carry: "carry";
    suggested: "suggested";
    summary: "summary";
    trim: "trim";
}>;
export type LimitHandoff = z.infer<typeof LimitHandoffSchema>;
export declare const TRIM_KEEPS_RESULTS = 10;
export declare const HandoffOfferSchema: z.ZodObject<{
    suggested: z.ZodEnum<{
        carry: "carry";
        summary: "summary";
        trim: "trim";
    }>;
    basis: z.ZodEnum<{
        setting: "setting";
        size: "size";
    }>;
    carry: z.ZodOptional<z.ZodObject<{
        tokens: z.ZodOptional<z.ZodNumber>;
    }, z.core.$strip>>;
    trim: z.ZodOptional<z.ZodObject<{
        tokens: z.ZodNumber;
        cleared: z.ZodNumber;
    }, z.core.$strip>>;
    summary: z.ZodOptional<z.ZodObject<{
        tokens: z.ZodNumber;
        reads: z.ZodOptional<z.ZodNumber>;
    }, z.core.$strip>>;
    chosen: z.ZodOptional<z.ZodEnum<{
        carry: "carry";
        summary: "summary";
        trim: "trim";
    }>>;
}, z.core.$strip>;
export type HandoffOffer = z.infer<typeof HandoffOfferSchema>;
export declare const ChooseHandoffSchema: z.ZodObject<{
    conversationId: z.ZodString;
    handoff: z.ZodEnum<{
        carry: "carry";
        summary: "summary";
        trim: "trim";
    }>;
}, z.core.$strip>;
export type ChooseHandoff = z.infer<typeof ChooseHandoffSchema>;
export declare const handoffAvailable: (offer: HandoffOffer, mode: HandoffMode) => boolean;
export declare const suggestHandoff: (tokens: number | undefined, available: (mode: HandoffMode) => boolean, thresholds: {
    readonly carryUnder: number;
    readonly summaryOver: number;
}) => HandoffMode | undefined;
export declare const HandedOffSchema: z.ZodObject<{
    mode: z.ZodEnum<{
        carry: "carry";
        summary: "summary";
        trim: "trim";
    }>;
    tokens: z.ZodOptional<z.ZodNumber>;
    from: z.ZodOptional<z.ZodNumber>;
    cleared: z.ZodOptional<z.ZodNumber>;
    model: z.ZodOptional<z.ZodString>;
    fellBack: z.ZodOptional<z.ZodBoolean>;
}, z.core.$strip>;
export type HandedOff = z.infer<typeof HandedOffSchema>;
export declare const handedOffNotice: (event: HandedOff) => Extract<SandboxNotice, {
    code: "handedOff";
}>;
export declare const handedOffLine: (event: HandedOff) => string;
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