/**
 * pi-loom: Context Offloader — TDAM-inspired symbolic short-term memory
 *
 * Stores large tool outputs to external files and replaces them with
 * lightweight symbolic references — cutting token usage while preserving
 * full traceability via node_id.
 *
 * Architecture:
 *   Tool output (100K tokens)
 *     → 1. Full text → .pi-loom/refs/<session>/<node_id>.md
 *     → 2. Symbolic summary → [REF: node_id] + brief description
 *     → 3. Agent can grep for node_id to recover full text on demand
 *
 * Mermaid integration (optional):
 *   Generates lightweight Mermaid task graphs from accumulated refs.
 */
export interface OffloadResult {
    nodeId: string;
    filePath: string;
    originalBytes: number;
    compressedBytes: number;
    summary: string;
    refString: string;
}
export declare function offloadText(content: string, sessionId: string, label: string, maxInlineChars?: number): OffloadResult;
export declare function retrieveOffload(nodeId: string, sessionId?: string): string | null;
export declare function generateMermaidGraph(sessionId: string): string;
export declare function listSessionRefs(sessionId: string): Array<{
    nodeId: string;
    filename: string;
    size: number;
}>;
export declare function cleanOldRefs(retentionDays?: number): number;