import type { Task as MCPTask } from '@modelcontextprotocol/sdk/types.js';
import { TaskState, TaskStatus } from '../types.js';
type MCPStatus = 'working' | 'completed' | 'failed' | 'cancelled';
/**
 * Map internal 8-state model to MCP 5-state model.
 */
export declare function mapInternalStatusToMCP(status: TaskStatus): MCPStatus;
/**
 * Build a human-readable status message from internal task state.
 */
export declare function buildStatusMessage(task: TaskState): string;
/**
 * Compute recommended poll interval based on task state.
 */
export declare function computePollInterval(task: TaskState): number | undefined;
/**
 * Build an MCP Task object from internal TaskState.
 */
export declare function buildMCPTask(task: TaskState): MCPTask;
export {};
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