import type { Tool, ToolDialect } from '../schemas/index.js';
interface HistoryMessage {
    role: string;
    content: string;
    attachments?: {
        path: string;
    }[] | undefined;
}
/**
 * Prepend tools right after the system message (or at the very start when no
 * system message is present). The tool block stays in the kv-cache for the
 * whole chat session.
 */
export declare function prependToolsToHistory(history: HistoryMessage[], tools: Tool[]): Array<HistoryMessage | Tool>;
export declare function detectToolDialect(modelId: string): ToolDialect;
export {};