ModelCensus toolkit · modelcensus_fmi1.1_any_pptxfromexcel_v1.txt Use case: using an LLM to compile a PPTX from an Excel workbook Failure mode: fmi1.1 States a figure with no source · https://modelcensus.org/fmi/fmi_1_1 Model: any · Version: v1 · Published versions never change; an edit is a new version. License: CC BY 4.0 · ModelCensus (modelcensus.org) What goes wrong in this use case A figure the workbook cannot support (growth for a region with no Q2 history) gets filled in anyway, with a plausible number and no hedge. The guard If a figure can't be computed from the workbook, write 'n/a' and the reason on the slide. Never estimate, extrapolate or fill a gap with a typical value. How to check it Every figure on a slide is in the numbers table; every gap says n/a with a reason. Example South opened in Q3, so it has no Q2 revenue: growth vs Q2 is n/a (new region).