import type { CompleteFn } from './suggest-types.js';
import type { SuggestContext } from './suggest.js';
export declare const MIN_LLM_CHARS = 3;
export declare const DEBOUNCE_MS = 250;
export declare const TIMEOUT_MS = 1500;
export declare function buildSystem(): string;
export declare function buildUser(buffer: string, ctx: SuggestContext): string;
export interface Tier2Deps {
    pickModel(ctx: SuggestContext): string;
    resolveComplete(model: string, ctx: SuggestContext): CompleteFn | null;
    debounceMs: number;
    timeoutMs: number;
    onError?: (err: unknown) => void;
}
export interface Tier2Runner {
    request(buffer: string, ctx: SuggestContext): Promise<string | null>;
    cancel(): void;
}
export declare function createTier2Runner(deps: Tier2Deps): Tier2Runner;