export interface GrammarSpec {
    /** Language id used by parser-tree-sitter.LANG_MAP. */
    lang: string;
    /** WASM filename to write into ~/.sverklo/grammars/. */
    wasm: string;
    /** Direct URL — pinned to a known-good version. */
    url: string;
}
export declare const GRAMMARS: GrammarSpec[];
export declare function grammarsDir(): string;
export interface InstallResult {
    lang: string;
    path: string;
    /** "fresh" = downloaded, "cached" = already present, "skipped" = filtered out. */
    status: "fresh" | "cached" | "skipped" | "error";
    bytes?: number;
    error?: string;
}
/**
 * Install (or re-verify) the requested grammar set. When `langs` is
 * empty, installs everything in GRAMMARS. Existing files are left
 * alone unless `force` is set.
 */
export declare function installGrammars(opts: {
    langs?: string[];
    force?: boolean;
    onProgress?: (msg: string) => void;
}): Promise<InstallResult[]>;