import { z } from "zod";
import type { SandboxNotice } from "../events/sandbox-notice.js";
export interface CacheClock {
    readonly at: number;
    readonly ttlMs: number;
}
export declare const keepWarmLeadMs: (ttlMs: number) => number;
export declare const keepWarmRefreshes: (cache: CacheClock, until: number) => number;
export declare const keepWarmHorizon: (cache: CacheClock, left: number) => number;
export declare const keepWarmDueAt: (cache: CacheClock) => number;
export declare const keepWarmCap: (cache: CacheClock, rollsAt: number | undefined, left: number) => number;
export declare const KeepWarmEndSchema: z.ZodEnum<{
    allowance: "allowance";
    changed: "changed";
    cold: "cold";
    elapsed: "elapsed";
    failed: "failed";
}>;
export type KeepWarmEnd = z.infer<typeof KeepWarmEndSchema>;
export declare const KeepWarmSchema: z.ZodObject<{
    since: z.ZodNumber;
    until: z.ZodNumber;
    refreshes: z.ZodNumber;
    readTokens: z.ZodOptional<z.ZodNumber>;
    ended: z.ZodOptional<z.ZodObject<{
        at: z.ZodNumber;
        reason: z.ZodEnum<{
            allowance: "allowance";
            changed: "changed";
            cold: "cold";
            elapsed: "elapsed";
            failed: "failed";
        }>;
        detail: z.ZodOptional<z.ZodString>;
    }, z.core.$strip>>;
}, z.core.$strip>;
export type KeepWarm = z.infer<typeof KeepWarmSchema>;
export declare const AgentKeepWarmSchema: z.ZodObject<{
    id: z.ZodString;
    until: z.ZodNullable<z.ZodNumber>;
}, z.core.$strip>;
export type AgentKeepWarm = z.infer<typeof AgentKeepWarmSchema>;
export declare const PromptCacheOpeningSchema: z.ZodObject<{
    readTokens: z.ZodNumber;
    writtenTokens: z.ZodNumber;
    kept: z.ZodOptional<z.ZodObject<{
        forMs: z.ZodNumber;
        refreshes: z.ZodNumber;
    }, z.core.$strip>>;
}, z.core.$strip>;
export type PromptCacheOpening = z.infer<typeof PromptCacheOpeningSchema>;
export declare const tokensLabel: (tokens: number) => string;
export declare const keptWarmNotice: (opening: PromptCacheOpening) => Extract<SandboxNotice, {
    code: "keptWarm" | "keptCold";
}> | undefined;
export declare const keptWarmLine: (opening: PromptCacheOpening) => string | undefined;
export declare const PromptFingerprintSchema: z.ZodObject<{
    hash: z.ZodString;
    parts: z.ZodRecord<z.ZodString, z.ZodString>;
}, z.core.$strip>;
export type PromptFingerprint = z.infer<typeof PromptFingerprintSchema>;
export declare const changedParts: (before: PromptFingerprint, after: PromptFingerprint) => string[];
export declare const KeepWarmSettingsSchema: z.ZodObject<{
    auto: z.ZodDefault<z.ZodBoolean>;
    hours: z.ZodDefault<z.ZodNumber>;
    minTokens: z.ZodDefault<z.ZodNumber>;
    reserve: z.ZodDefault<z.ZodNumber>;
}, z.core.$strip>;
export type KeepWarmSettings = z.infer<typeof KeepWarmSettingsSchema>;
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