/**
 * Provider interfaces — pure TypeScript contracts for plugin integrations.
 *
 * These are type-only re-exports with zero runtime cost.
 * Concrete implementations live in separate packages.
 */
export type { UploadResult, UploadOptions, UploadProvider } from './upload-provider.js';
export type { AgentMessage, AgentMessageAttachment, AgentSendOptions, AgentResponse, AgentProvider, } from './agent-provider.js';
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