/**
 * Database Schema Extractor
 *
 * Parses ORM schema definitions from source files using regex-based analysis.
 * Supports Prisma, TypeORM, Drizzle ORM, and SQLAlchemy.
 *
 * Audit fields (createdAt, updatedAt, created_at, updated_at, deletedAt,
 * deleted_at) are excluded from field lists to keep output concise.
 *
 * Uses regex-based analysis without requiring tree-sitter.
 */
export interface SchemaField {
    name: string;
    type: string;
    nullable: boolean;
}
export type OrmType = 'prisma' | 'typeorm' | 'drizzle' | 'sqlalchemy' | 'jpa' | 'unknown';
export interface SchemaTable {
    /** Model / table name */
    name: string;
    /** Path relative to project root */
    file: string;
    /** ORM that owns this schema */
    orm: OrmType;
    /** Extracted fields (audit fields excluded) */
    fields: SchemaField[];
    /** 1-based line of the model declaration */
    line: number;
}
/**
 * Extract database schema tables from a list of absolute file paths.
 *
 * @param filePaths - Absolute paths to source files
 * @param rootDir   - Project root used to compute relative paths in output
 */
export declare function extractSchemas(filePaths: string[], rootDir: string): Promise<SchemaTable[]>;
/**
 * Summarise schema tables by ORM for display / artifact embedding.
 */
export declare function summarizeSchemas(tables: SchemaTable[]): Record<string, number>;
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