import type { TaskAssignment, Subtask, SessionInfo, ExecutionCallbacks, ApiContract, SubtaskQuestion, TaskPlan, ProgressCallback } from '../types/index.js';
export interface TaskResult {
    result: string;
    sessionId?: string;
    costUsd?: number;
    durationMs?: number;
    isError: boolean;
}
/**
 * Execute a task by spawning a single Claude CLI session.
 * Used for agent_team mode or tasks that don't need planning.
 */
export declare function runTask(task: TaskAssignment, onProgress: ProgressCallback, signal?: AbortSignal, confirmBeforeEdit?: boolean): Promise<TaskResult>;
/**
 * Execute a single subtask by spawning a Claude CLI session.
 */
export declare function executeSubtask(subtask: Subtask, repoPath: string, contracts?: ApiContract[], callbacks?: ExecutionCallbacks, signal?: AbortSignal, confirmBeforeEdit?: boolean): Promise<SessionInfo>;
/**
 * Build execution layers from subtask dependencies.
 * Subtasks with all dependencies met run in the same layer (parallel).
 */
export declare function buildExecutionLayers(subtasks: Subtask[]): Subtask[][];
/**
 * Execute a full task plan: run subtasks layer by layer, parallel within each layer.
 * Returns all session results.
 */
export declare function executeTaskWithPlan(task: TaskAssignment, plan: TaskPlan, onProgress: ProgressCallback, callbacks?: ExecutionCallbacks, signal?: AbortSignal, confirmBeforeEdit?: boolean): Promise<{
    sessions: SessionInfo[];
    status: 'done' | 'failed' | 'waiting_input';
}>;
/**
 * Parse question from Claude output when question.json is missing.
 * Fallback for when Claude outputs NEEDS_INPUT but didn't create the file.
 */
export declare function parseQuestionFromOutput(output: string, subtaskId: string): SubtaskQuestion | null;