Developed and integrated the initial EqSat PDLMatcher for the PDL interpreter within the xdsl repository, focusing on interpreter development and pattern matching using Python. The work involved designing a new matcher class to support EqSat e-class operations, enabling reliable type-based matching for the interpreter. Comprehensive unit tests were implemented to verify both matching types and fixed types, improving test coverage and maintainability. No major bugs were reported during this period, and the integration established a solid foundation for future enhancements to the PDL interpreter. The approach emphasized correctness, extensibility, and robust testing practices throughout the development process.