Developed a Parquet Scan Byte Estimation Extension for the duckdb/community-extensions repository, enabling users to estimate the number of bytes a SELECT query would scan from Parquet files without executing the query. This feature introduced a dry-run capability during query planning, allowing for more accurate resource management and workload decisions. The extension was implemented in C++ and focused on data processing and query optimization, providing a foundation for improved budgeting and capacity planning in large-scale environments. By integrating this extension, the work enhanced the ability to forecast resource requirements and optimize query execution strategies within the DuckDB ecosystem.