import type { MemoryStore, MemoryEvent } from "./memory.js";
/**
 * Sliding window context manager with token-based compaction.
 */
export declare class ContextManager {
    private readonly memory;
    private readonly windowTokens;
    private encoder?;
    constructor(memory: MemoryStore, windowTokens: number);
    private getEncoder;
    private countTokens;
    /** Return recent events that fit within token window. */
    getWindow(): Promise<MemoryEvent[]>;
    /** Returns true if compaction is needed (>80% of window used). */
    needsCompaction(): Promise<boolean>;
    estimateTokenCount(): Promise<number>;
}
//# sourceMappingURL=context.d.ts.map