/**
 * Execution context for graph execution
 */
import type { ExecutionContext as ExprContext } from "../expressions/context.js";
import type { NodeExecutionRecord } from "../types/execution.js";
export declare class ExecutionContext {
    private history;
    constructor(toolInput: Record<string, unknown>);
    /**
     * Build context from history up to a specific index (for debugging) or entire history (for current execution)
     * @param upToIndex - If provided, build context from history up to this index (exclusive). If not provided, use entire history.
     * @returns Context object with node outputs (latest execution wins for each node)
     */
    private buildContextFromHistory;
    /**
     * Get the current execution context (built from entire history)
     * Called once per node execution when the node starts
     */
    getData(): ExprContext;
    /**
     * Get the context that was available to a specific execution (for debugging)
     * @param executionIndex - The execution index to build context for
     * @returns Context object that was available to that execution
     */
    getContextForExecution(executionIndex: number): ExprContext;
    /**
     * Get a specific execution record by index
     */
    getExecutionByIndex(executionIndex: number): NodeExecutionRecord | undefined;
    /**
     * Get the previous node execution record
     * @param currentIndex - Current execution index
     * @returns Previous execution record or null if this is the first execution
     */
    getPreviousNode(currentIndex: number): NodeExecutionRecord | null;
    addHistory(nodeId: string, nodeType: string, output: unknown, startTime: number, endTime: number, error?: Error): void;
    getHistory(): NodeExecutionRecord[];
}
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