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Financial tooling
Valuation Excel Skill
A Codex skill that downloads filings, validates evidence-backed assumptions, fills a valuation workbook, recalculates it, and records a complete audit trail.
StatusVersion 3
EvidencePython · 2 commits
Goal
What I wanted to make
Turn a company’s public filings into a trustworthy intrinsic valuation without losing the source trail behind the numbers.
The problem
Why it needed to exist
Automated valuation models can look polished while hiding unsupported assumptions, stale formulas, or workbooks that were never recalculated. That makes the final number difficult to trust or review.
The solution
How the project answers it
The skill enforces evidence for numeric inputs, writes source and run metadata into the workbook, supports LibreOffice or Google Sheets recalculation, and distinguishes complete runs from workbooks still awaiting calculation.