1. pkg/models/models.go:184 - Fixed typo in ForeignKeyConstraint constant from "foreign_Key" to "foreign_key" 2. pkg/readers/drawdb/reader.go:62-68 - Fixed ReadSchema() to properly detect schema name from tables instead of hardcoding "default" 3. pkg/writers/dbml/writer.go:128 - Changed primary key attribute from "primary key" to DBML standard "pk" 4. pkg/writers/dbml/writer.go:208-221 - Fixed foreign key reference format to use "table.column" syntax for single columns instead of "table.(column)" Test Results All reader and writer tests are now passing: Readers: - DBML: 74.4% coverage (2 tests skipped due to missing parser features for Ref statements) - DCTX: 77.6% coverage - DrawDB: 83.6% coverage - JSON: 82.1% coverage - YAML: 82.1% coverage Writers: - Bun: 68.5% coverage - DBML: 91.5% coverage - DCTX: 100.0% coverage - DrawDB: 83.8% coverage - GORM: 69.2% coverage - JSON: 82.4% coverage - YAML: 82.4% coverage