/**
 * `codebase-stats` tool — report index health and statistics.
 *
 * Usage: codebase-stats({})
 *
 * Returns: { totalSymbols, totalFiles, byLang, byKind, lastIndexed, sizeBytes, version }
 */
import type { Tool } from '@wrongstack/core/types';
/**
 * `codebase-stats` takes no arguments (its JSON schema is
 * `properties: {}, additionalProperties: false`). Expressed as a type alias
 * rather than an empty interface, which is structurally `{}` — a type that
 * accepts any non-nullish value and is flagged by `noEmptyInterface`.
 */
export type CodebaseStatsInput = Record<string, never>;
export declare const codebaseStatsTool: Tool<CodebaseStatsInput, CodebaseStatsOutput>;
export interface CodebaseStatsOutput {
    totalSymbols: number;
    totalFiles: number;
    byLang: Record<string, number>;
    byKind: Record<string, number>;
    lastIndexed: number | null;
    sizeBytes: number;
    indexPath: string;
    version: number;
    /** False when lifecycle state was returned without opening the SQLite index. */
    statsAvailable: boolean;
    /** Present while an index build or refresh is active. */
    indexing?: {
        currentFile: number;
        totalFiles: number;
    } | undefined;
    /** Non-empty when the index is not ready or is still building. */
    indexStatus?: string | undefined;
}
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