See it in action
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
PromptWhich script module in the financial analysis toolkit serves as the primary calculation engine for computing ratios across financial line items?
What was checked, without and with the skill| Checked | Without skill | With skill |
|---|
| The calculation engine script is calculate_ratios.py. | Missed | Passed |
|---|
What's inside
The instructions your model reads when the skill loads.
SKILL.md64 linessingle file
Financial Ratio Calculator Skill
This skill provides comprehensive financial ratio analysis for evaluating company performance, profitability, liquidity, and valuation.
Capabilities
Calculate and interpret:
- Profitability Ratios: ROE, ROA, Gross Margin, Operating Margin, Net Margin
- Liquidity Ratios: Current Ratio, Quick Ratio, Cash Ratio
- Leverage Ratios: Debt-to-Equity, Interest Coverage, Debt Service Coverage
- Efficiency Ratios: Asset Turnover, Inventory Turnover, Receivables Turnover
- Valuation Ratios: P/E, P/B, P/S, EV/EBITDA, PEG
- Per-Share Metrics: EPS, Book Value per Share, Dividend per Share
How to Use
- Input Data: Provide financial statement data (income statement, balance sheet, cash flow)
- Select Ratios: Specify which ratios to calculate or use "all" for comprehensive analysis
- Interpretation: The skill will calculate ratios and provide industry-standard interpretations
Input Format
Financial data can be provided as:
- CSV with financial line items
- JSON with structured financial statements
- Text description of key financial figures
- Excel files with financial statements
Output Format
Results include:
- Calculated ratios with values
- Industry benchmark comparisons (when available)
- Trend analysis (if multiple periods provided)
- Interpretation and insights
- Excel report with formatted results
Example Usage
"Calculate key financial ratios for this company based on the attached financial statements"
Track record
Benchmark
20 / 23
test cases passed, vs 18 / 23 without
Adoption
- Users
- 0
- Times used
- 0
Safety and source details
SkillSafety
✓ 3 of 3 passed✓Code scan15 of 15 checks clean
0 critical · 0 warning · 0 info — scanner v4 — 8/2/2026
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✓IntentSafe
LLM judge · does the skill do what it claims
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Source
Importedbilal140202 / the-lord-of-the-skills
skills/rivendell/claude-code/anthropics__claude-cookbook/SKILL.md
License MITImported 8/2/2026Version v1