/**
 * Would `loadCollectionsFromDirectory` load this file?
 *
 * Mirrors that loader's own `isCollectionFile` plus its flat (non-recursive)
 * scan. `relativePath` is relative to the collections directory, as `fs.watch`
 * reports it.
 */
export declare function isLoadedCollectionFile(relativePath: string): boolean;
/**
 * Does this collection source declare anything a SQL toolchain would own?
 *
 * The fallback order matches `resolveDataSource`: an explicit `engine` wins,
 * and a collection that only names a `dataSource` is resolved as if the key
 * were the engine — which is what that function does when no registry is
 * available, and the CLI has none. An engine nobody recognises counts as
 * relational, for the reason `isRelationalCollection` gives.
 *
 * A file declaring several collections is SQL-affecting if *any* of them is.
 */
export declare function declaresRelationalCollection(rawSource: string): boolean;
/**
 * Can this edit have changed the generated SQL schema?
 *
 * Answers `true` when it cannot tell — an unreadable file is a reason to warn,
 * not a reason to go quiet.
 */
export declare function affectsSqlSchema(collectionsDir: string, relativePath: string): boolean;