/**
 * Types for tool result auto-delegation.
 *
 * When large tool results exceed a token threshold, they are automatically
 * summarized and stored for optional recall. This conserves context tokens
 * while preserving access to the full data.
 */
/**
 * Configuration for tool result delegation.
 * Controls when and how large tool results are summarized.
 */
export interface DelegationConfig {
    /** Whether delegation is enabled. Default: false (opt-in) */
    enabled: boolean;
    /** Token count above which results are delegated. Default: 8000 */
    delegationThreshold: number;
    /** Maximum tokens for the summary. Default: 800 */
    summaryMaxTokens: number;
    /** Milliseconds before stored results expire. Default: 600_000 (10 min) */
    resultTTL: number;
    /** Maximum number of stored results (LRU eviction). Default: 50 */
    maxStoredResults: number;
    /** Summarization strategy. Default: 'auto' */
    strategy: 'llm' | 'extractive' | 'auto';
    /** Per-tool threshold/strategy overrides */
    toolOverrides?: Record<string, {
        enabled?: boolean;
        threshold?: number;
        strategy?: 'llm' | 'extractive' | 'auto';
    }>;
}
/**
 * A stored full result that was replaced by a summary.
 */
export interface StoredResult {
    /** Unique delegation ID, e.g., 'dr_1707900000_0' */
    id: string;
    /** Name of the tool that produced the result */
    toolName: string;
    /** Input parameters passed to the tool */
    toolInput: Record<string, unknown>;
    /** The full serialized result content */
    fullContent: string;
    /** Token count of the full content */
    fullTokens: number;
    /** The generated summary */
    summary: string;
    /** Token count of the summary */
    summaryTokens: number;
    /** Timestamp when stored */
    storedAt: number;
    /** Timestamp when this result expires */
    expiresAt: number;
}
/**
 * Events emitted during the delegation lifecycle.
 */
export type DelegationEvent = {
    type: 'delegation:started';
    toolName: string;
    originalTokens: number;
    delegationId: string;
} | {
    type: 'delegation:completed';
    toolName: string;
    originalTokens: number;
    summaryTokens: number;
    delegationId: string;
    strategy: 'llm' | 'extractive';
} | {
    type: 'delegation:failed';
    toolName: string;
    error: string;
} | {
    type: 'delegation:recall';
    delegationId: string;
    found: boolean;
};
/**
 * Default delegation configuration values.
 */
export declare const DEFAULT_DELEGATION_CONFIG: DelegationConfig;