import type { EffectiveRule } from './rule-pre-read-types.js';
/** Where the curated rule sets live, or why they could not be found. */
export type CuratedRoot = {
    readonly ok: true;
    readonly path: string;
} | {
    readonly ok: false;
    readonly reason: string;
};
/** One rule file, parsed into its declared patterns and its body. */
type CuratedRuleFile = {
    readonly globs: readonly string[];
    readonly body: string;
};
/**
 * The curated rule root, resolved through the bundled `ecc-universal`
 * dependency. The dependency ships the rules, so there is nothing to fetch.
 */
export declare function resolveCuratedRulesRoot(): CuratedRoot;
/**
 * Split a rule file into its declared patterns and its body.
 *
 * A file with no frontmatter has no declared patterns, which means it governs
 * every file — that is how the `common/` layer is written.
 */
export declare function splitFrontmatter(text: string): CuratedRuleFile;
/**
 * The curated rules that govern a file set.
 *
 * Returns the rules AND the reasons the read could not produce them, so a
 * missing curated layer is never mistaken for "there are no curated rules".
 */
export declare function readCuratedRules(files: readonly string[], root: CuratedRoot): {
    rules: readonly EffectiveRule[];
    reasons: readonly string[];
};
export {};