An Agentic System for LLM-Driven Public Transportation Analytics: A Practical Application and Case Study in Salvador-Brazil. - Lucas T. Borges; Fei Tony Liu; Tatiane N. Rios; Marcos Vinicius Ferreira; Clovis Carmo; Danilo Barbosa Coimbra; Jorge Nery; Matheus Souza; Noe O. Garcia; Albert Bifet; Ricardo Araújo Rios (AGENT@ICSE, 2026)