The bulk is concrete expert guidance, but the ~1260-line body repeats the same requirements across many sections (the '75 cells / 3×25 sensitivity' rule appears in Critical Constraints, correct_patterns, common_mistakes, the Sensitivity Analysis section, and the Final Checklist) and restates material in 'Best Practices' and 'Workflow Integration', so it could be tightened significantly; not score 1 because it avoids beginner-level concept explanation, but the duplication keeps it below 3.

Provides fully executable, copy-paste-ready guidance — exact formula strings with cell references like '=E29*(1+$E$10)', CSV layouts for every sheet, concrete openpyxl/Office JS snippets, and the 'python recalc.py model.xlsx 30' invocation with arguments; not score 2 because examples are complete and executable rather than pseudocode with missing details.

A clear 10-step sequenced process is paired with explicit validation feedback loops — the 'Verify Step-by-Step With the User' confirm-before-proceeding checkpoints and the validate→fix→re-run recalc.py until 'success' loop — matching the explicit-validation-and-feedback-loops anchor; not score 2 because validation checkpoints are present and explicit for this batch/destructive-style operation.

The skill is a monolithic ~1260-line SKILL.md with content that should be split into separate reference files (lengthy common_mistakes, formatting standards, best practices), and it references a ./TROUBLESHOOTING.md that does not exist in the bundle; references are only one level deep so it avoids score 1, but the missing reference and lack of a real multi-file split keep it below 3.

Lists multiple concrete actions — 'Retrieves financial data from SEC filings and analyst reports, builds comprehensive cash flow projections with proper WACC calculations, performs sensitivity analysis, and outputs professional Excel models' — matching the multiple-specific-actions anchor; not score 2 because the action set is comprehensive rather than partial.

Explicitly answers both what (the enumerated actions) and when via a 'Use when users need to value a company...' clause, hitting the both-what-and-when anchor; not score 2 because the when-trigger is explicit, not merely implied.

Natural user-facing triggers are well covered — 'value a company using DCF methodology', 'intrinsic value analysis', 'detailed financial modeling', 'growth projections and terminal value calculations'; not score 2 because it captures the common phrasings a user would actually say rather than only jargon.

Occupies a clear niche — DCF equity valuation producing Excel models — with triggers specific enough ('intrinsic value analysis', 'terminal value calculations') to avoid firing for unrelated skills; not score 2 because the scope is narrow and distinct rather than broadly overlapping.