/**
 * @fileoverview ExecutionPlan Builder (SPEC Section 5.3)
 *
 * Builds ExecutionPlan from IntentGraph using topological sort.
 *
 * Per SPEC Section 11.4 (E-INV-*):
 * - E-INV-1: steps contains no abstract nodes
 * - E-INV-2: dependencyEdges references only nodes in steps
 * - E-INV-3: from is dependency (executes first), to is dependent (executes after)
 *
 * @module helpers/build-execution-plan
 */
import type { IntentGraph } from "../core/types/intent-graph.js";
import type { ExecutionPlan } from "../core/types/execution-plan.js";
/**
 * Build ExecutionPlan from IntentGraph.
 *
 * Uses Kahn's algorithm for topological sort.
 *
 * Per SPEC Section 5.3:
 * - Excludes abstract nodes from steps
 * - Includes only edges between non-abstract nodes
 * - Topologically sorted for execution order
 *
 * @param graph - The Intent Graph to build plan from
 * @returns ExecutionPlan with steps, edges, and abstract nodes
 * @throws Error if graph contains cycles
 */
export declare function buildExecutionPlan(graph: IntentGraph): ExecutionPlan;
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