export interface OpenCodeToolResultKey {
    contextId: string;
    sessionId: string;
    callId: string;
}
export interface OpenCodeToolResultEntry extends OpenCodeToolResultKey {
    tool: string;
    args?: unknown;
    title?: string;
    output?: string;
    metadata?: unknown;
    attachments?: unknown;
    createdAt: number;
    updatedAt: number;
    incomplete: boolean;
}
export interface OpenCodeToolResultLedgerOptions {
    ttlMs?: number;
    maxEntries?: number;
    maxBytes?: number;
    maxEntryBytes?: number;
    now?: () => number;
}
export declare class OpenCodeToolResultLedger {
    private readonly entries;
    private readonly ttlMs;
    private readonly maxEntries;
    private readonly maxBytes;
    private readonly maxEntryBytes;
    private readonly now;
    private totalBytes;
    constructor(options?: OpenCodeToolResultLedgerOptions);
    recordBefore(key: OpenCodeToolResultKey, input: {
        tool: string;
        args?: unknown;
    }): void;
    recordAfter(key: OpenCodeToolResultKey, input: {
        tool: string;
        args?: unknown;
        title?: string;
        output?: string;
        metadata?: unknown;
        attachments?: unknown;
    }): void;
    peek(key: OpenCodeToolResultKey): OpenCodeToolResultEntry | undefined;
    consume(key: OpenCodeToolResultKey): OpenCodeToolResultEntry | undefined;
    deleteSession(contextId: string, sessionId: string): void;
    clear(): void;
    stats(): {
        entries: number;
        bytes: number;
    };
    private store;
    private getStored;
    private touch;
    private sweep;
    private evict;
}