import type { EngineResult } from '../engine-result.js';
import { type SpawnCapability } from '../spawn/adapter-registry.js';
import type { HarnessSpawnProviderSelection } from './types.js';
/**
 * Select a spawn-capable provider and registered adapter from the core harness.
 *
 * This is the SDK-owned provider-selection primitive used by CLI and future
 * harness surfaces. Provider registry discovery, adapter registry lookup, and
 * capability verification live here so surfaces do not duplicate harness
 * authority.
 *
 * @param capabilities - Required spawn capabilities for the operation
 * @returns Provider and adapter selection, or a typed engine error
 */
export declare function selectHarnessSpawnProvider(capabilities: readonly SpawnCapability[]): Promise<EngineResult<HarnessSpawnProviderSelection>>;
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