Aissa Mohamed, Frances Santos, and Julio Reis. 2025. Enhancing LLM Agent Effectiveness via Reflective Multi-Agent System. In Proceedings of the 19th Workshop-School on Agents, Environments, and Applications, September 29, 2025, Fortaleza/CE, Brasil. SBC, Porto Alegre, Brasil, 206-217. DOI: https://doi.org/10.5753/wesaac.2025.37536.