Audits Excel formulas and financial models with three scopes: selection for quick checks, sheet for focused review, or full model for integrated workbooks like DCFs and LBOs. The formula checks catch the usual suspects (hardcoded constants, off-by-one ranges, inconsistent patterns). Model scope is where it gets serious: balance sheet tie-outs, cash flow reconciliation, terminal value sanity, and model-type-specific bugs like double-counted tax shields in DCFs or broken debt sweeps in LBOs. Reports findings in a severity table without changing anything. Use this before sending a model to a client or investment committee. The BS balance check alone has probably saved someone's job.
npx skills add https://github.com/anthropics/financial-services-plugins --skill audit-xls