Archival release — AIC paper & MSc thesis This release is the archival snapshot of ifc-hydro corresponding to the results reported in: Journal paper: Müller, A.B.; Corrêa, F.R. "IFC-based graph representations for cross-domain engineering analysis." Automation in Construction (submitted 2026). MSc thesis: Müller, A.B. "Representações em grafo baseadas em IFC para o cálculo de sistemas prediais". Escola Politécnica, Universidade de São Paulo, 2026. The code in this release reproduces all case study results (topology extraction, attribute classification, and hydraulic analysis) presented in the paper's Section 4 and the thesis's Chapters 5–7. The included example models (demo-project.ifc, eval-project.ifc) and evaluation logs correspond to the reported validation data. For ongoing development, see the main branch. Key dependencies: Python ≥ 3.7, IfcOpenShell ≥ 0.7.0