export interface RepoValidationResult {
    valid: boolean;
    csprojCount: number;
}
/** Resolved-repo mode label used to tailor the error fix-line. */
export type ValidationRepoMode = "local" | "managed";
/**
 * Check whether a resolved repo on disk is a .NET C# repository — i.e. its
 * committed git tree (`HEAD`) contains at least one `*.csproj` file
 * (case-insensitive, non-empty stem). `*.cs` files alone do not count, and
 * `.vbproj`/`.fsproj` do not count (mcp-digger only handles C# syntax).
 *
 * Reads `HEAD` via `git ls-tree` (not the index via `git ls-files`) so a
 * staged-but-uncommitted `.csproj` does NOT make the repo pass validation
 * — every other mcp-digger tool reads from `HEAD` (`git show HEAD:<path>`),
 * so the validity criterion must match downstream behaviour. Working-tree
 * and index-only `.csproj` files are intentionally ignored.
 */
export declare function validateNetCSharpRepo(repoPath: string): Promise<RepoValidationResult>;
/**
 * Build the user-facing error message surfaced when a repo fails .NET C#
 * validation. Includes the repo name, the resolved path that was checked,
 * and a mode-specific fix hint so the user knows whether to inspect their
 * `localPath` or `url`.
 */
export declare function buildNotNetCSharpError(repoName: string, checkedPath: string, mode?: ValidationRepoMode): string;
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