Claude-Skills financial-analyst
git clone https://github.com/borghei/Claude-Skills
T=$(mktemp -d) && git clone --depth=1 https://github.com/borghei/Claude-Skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/finance/financial-analyst" ~/.claude/skills/borghei-claude-skills-financial-analyst && rm -rf "$T"
finance/financial-analyst/SKILL.mdFinancial Analyst Skill
Overview
Production-ready financial analysis toolkit providing ratio analysis, DCF valuation, budget variance analysis, and rolling forecast construction. Designed for financial analysts with 3-6 years experience performing financial modeling, forecasting & budgeting, management reporting, business performance analysis, and investment analysis.
5-Phase Workflow
Phase 1: Scoping
- Define analysis objectives and stakeholder requirements
- Identify data sources and time periods
- Establish materiality thresholds and accuracy targets
- Select appropriate analytical frameworks
Phase 2: Data Analysis & Modeling
- Collect and validate financial data (income statement, balance sheet, cash flow)
- Calculate financial ratios across 5 categories (profitability, liquidity, leverage, efficiency, valuation)
- Build DCF models with WACC and terminal value calculations
- Construct budget variance analyses with favorable/unfavorable classification
- Develop driver-based forecasts with scenario modeling
Phase 3: Insight Generation
- Interpret ratio trends and benchmark against industry standards
- Identify material variances and root causes
- Assess valuation ranges through sensitivity analysis
- Evaluate forecast scenarios (base/bull/bear) for decision support
Phase 4: Reporting
- Generate executive summaries with key findings
- Produce detailed variance reports by department and category
- Deliver DCF valuation reports with sensitivity tables
- Present rolling forecasts with trend analysis
Phase 5: Follow-up
- Track forecast accuracy (target: +/-5% revenue, +/-3% expenses)
- Monitor report delivery timeliness (target: 100% on time)
- Update models with actuals as they become available
- Refine assumptions based on variance analysis
Tools
1. Ratio Calculator (scripts/ratio_calculator.py
)
scripts/ratio_calculator.pyCalculate and interpret financial ratios from financial statement data.
Ratio Categories:
- Profitability: ROE, ROA, Gross Margin, Operating Margin, Net Margin
- Liquidity: Current Ratio, Quick Ratio, Cash Ratio
- Leverage: Debt-to-Equity, Interest Coverage, DSCR
- Efficiency: Asset Turnover, Inventory Turnover, Receivables Turnover, DSO
- Valuation: P/E, P/B, P/S, EV/EBITDA, PEG Ratio
python scripts/ratio_calculator.py sample_financial_data.json python scripts/ratio_calculator.py sample_financial_data.json --format json python scripts/ratio_calculator.py sample_financial_data.json --category profitability
2. DCF Valuation (scripts/dcf_valuation.py
)
scripts/dcf_valuation.pyDiscounted Cash Flow enterprise and equity valuation with sensitivity analysis.
Features:
- WACC calculation via CAPM
- Revenue and free cash flow projections (5-year default)
- Terminal value via perpetuity growth and exit multiple methods
- Enterprise value and equity value derivation
- Two-way sensitivity analysis (discount rate vs growth rate)
python scripts/dcf_valuation.py valuation_data.json python scripts/dcf_valuation.py valuation_data.json --format json python scripts/dcf_valuation.py valuation_data.json --projection-years 7
3. Budget Variance Analyzer (scripts/budget_variance_analyzer.py
)
scripts/budget_variance_analyzer.pyAnalyze actual vs budget vs prior year performance with materiality filtering.
Features:
- Dollar and percentage variance calculation
- Materiality threshold filtering (default: 10% or $50K)
- Favorable/unfavorable classification with revenue/expense logic
- Department and category breakdown
- Executive summary generation
python scripts/budget_variance_analyzer.py budget_data.json python scripts/budget_variance_analyzer.py budget_data.json --format json python scripts/budget_variance_analyzer.py budget_data.json --threshold-pct 5 --threshold-amt 25000
4. Forecast Builder (scripts/forecast_builder.py
)
scripts/forecast_builder.pyDriver-based revenue forecasting with rolling cash flow projection and scenario modeling.
Features:
- Driver-based revenue forecast model
- 13-week rolling cash flow projection
- Scenario modeling (base/bull/bear cases)
- Trend analysis using simple linear regression (standard library)
python scripts/forecast_builder.py forecast_data.json python scripts/forecast_builder.py forecast_data.json --format json python scripts/forecast_builder.py forecast_data.json --scenarios base,bull,bear
Knowledge Bases
| Reference | Purpose |
|---|---|
| Ratio formulas, interpretation, industry benchmarks |
| DCF methodology, WACC, terminal value, comps |
| Driver-based forecasting, rolling forecasts, accuracy |
Templates
| Template | Purpose |
|---|---|
| Budget variance report template |
| DCF valuation analysis template |
| Revenue forecast report template |
Industry Adaptations
SaaS
- Key metrics: MRR, ARR, CAC, LTV, Churn Rate, Net Revenue Retention
- Revenue recognition: subscription-based, deferred revenue tracking
- Unit economics: CAC payback period, LTV/CAC ratio
- Cohort analysis for retention and expansion revenue
Retail
- Key metrics: Same-store sales, Revenue per square foot, Inventory turnover
- Seasonal adjustment factors in forecasting
- Gross margin analysis by product category
- Working capital cycle optimization
Manufacturing
- Key metrics: Gross margin by product line, Capacity utilization, COGS breakdown
- Bill of materials cost analysis
- Absorption vs variable costing impact
- Capital expenditure planning and ROI
Financial Services
- Key metrics: Net Interest Margin, Efficiency Ratio, ROA, Tier 1 Capital
- Regulatory capital requirements
- Credit loss provisioning and reserves
- Fee income analysis and diversification
Healthcare
- Key metrics: Revenue per patient, Payer mix, Days in A/R, Operating margin
- Reimbursement rate analysis by payer
- Case mix index impact on revenue
- Compliance cost allocation
Key Metrics & Targets
| Metric | Target |
|---|---|
| Forecast accuracy (revenue) | +/-5% |
| Forecast accuracy (expenses) | +/-3% |
| Report delivery | 100% on time |
| Model documentation | Complete for all assumptions |
| Variance explanation | 100% of material variances |
Input Data Format
All scripts accept JSON input files. See
assets/sample_financial_data.json for the complete input schema covering all four tools.
Dependencies
None - All scripts use Python standard library only (
math, statistics, json, argparse, datetime). No numpy, pandas, or scipy required.
Troubleshooting
| Problem | Cause | Solution |
|---|---|---|
| All ratios return 0.00 | Missing or zeroed financial statement fields in input JSON | Verify , , and keys are populated with non-zero values; check field names match expected schema |
| DCF yields negative equity value | Net debt exceeds enterprise value, or WACC is set lower than terminal growth rate | Confirm is accurate; ensure < WACC (typically 2-3% vs 8-12%); review capital structure assumptions |
| Sensitivity table shows "N/A" across entire row | WACC value in that row is less than or equal to every terminal growth rate in the range | Widen the gap between WACC and terminal growth; raise WACC inputs or lower the growth range in |
| Budget variance analyzer flags every line as material | Materiality thresholds set too low relative to the data scale | Increase (e.g., from 5 to 10) and (e.g., from 25000 to 100000) to match organizational materiality policy |
| Forecast builder produces flat projections | Historical data has fewer than 2 periods, or is set to 0 | Provide at least 3-4 historical periods in ; set a non-zero in |
| JSON parsing error on script execution | Malformed JSON input file (trailing commas, unquoted keys, encoding issues) | Validate input with ; ensure UTF-8 encoding; remove trailing commas and comments |
| Valuation ratios all show "Insufficient data" | Missing section in input JSON (share price, shares outstanding) | Add the object with , , and fields to the input file |
Success Criteria
- Forecast Accuracy: Revenue forecasts land within +/-5% of actuals; expense forecasts within +/-3% over rolling 12-month periods
- Variance Coverage: 100% of material variances (exceeding threshold) include documented root-cause explanations and corrective action plans
- Valuation Confidence: DCF-derived equity value falls within 15% of comparable-company and precedent-transaction benchmarks, validated through sensitivity analysis
- Report Timeliness: All financial analysis deliverables (ratio reports, variance analyses, forecast updates) published within agreed SLA -- target 100% on-time delivery
- Model Integrity: Every assumption in DCF and forecast models is documented with source, rationale, and last-reviewed date; WACC inputs refresh quarterly against market data
- Stakeholder Adoption: Financial models and dashboards referenced in at least 80% of executive budget reviews, board presentations, and investment committee decisions
- Analytical Efficiency: End-to-end analysis cycle time (data collection through report delivery) reduced by 40%+ compared to manual spreadsheet workflows, measured per reporting period
Scope & Limitations
This skill covers:
- Quantitative financial ratio analysis across profitability, liquidity, leverage, efficiency, and valuation categories with built-in industry benchmarking
- Discounted Cash Flow (DCF) enterprise and equity valuation using CAPM-based WACC, perpetuity growth and exit multiple terminal value methods, and two-way sensitivity analysis
- Budget variance analysis with materiality filtering, favorable/unfavorable classification, department and category breakdowns, and executive summary generation
- Driver-based revenue forecasting with 13-week rolling cash flow projection, base/bull/bear scenario modeling, and linear regression trend analysis
This skill does NOT cover:
- Real-time market data feeds, live stock price retrieval, or automated data ingestion from ERP/accounting systems (all input is via static JSON files)
- Qualitative analysis such as management quality assessment, competitive moat evaluation, ESG scoring, or regulatory risk judgment
- Tax optimization, transfer pricing, multi-entity consolidation, or jurisdiction-specific accounting treatments (IFRS vs GAAP reconciliation)
- Monte Carlo simulation, options pricing (Black-Scholes), credit risk modeling, or any analysis requiring external libraries beyond the Python standard library
Integration Points
| Related Skill | Domain | Integration Use Case |
|---|---|---|
| C-Level Advisory | Feed DCF valuation outputs and scenario comparisons into CEO strategic investment decisions and board-ready presentations |
| C-Level Advisory | Provide technology investment ROI analysis and CapEx forecasts to support build-vs-buy and infrastructure scaling decisions |
| Business & Growth | Connect revenue forecasts and unit-economics metrics (CAC, LTV, payback period) to pipeline and go-to-market planning |
| Product Team | Supply budget variance data and RICE-weighted financial projections for feature prioritization and resource allocation |
| Data Analytics | Export ratio analysis and forecast outputs as structured JSON for BI dashboard integration and trend visualization |
| Project Management | Align budget variance analysis with project-level cost tracking, earned value management, and milestone-based funding releases |
Tool Reference
scripts/ratio_calculator.py
scripts/ratio_calculator.pyCalculate and interpret financial ratios across 5 categories with industry benchmarking.
usage: ratio_calculator.py [-h] [--format {text,json}] [--category {profitability,liquidity,leverage,efficiency,valuation}] input_file positional arguments: input_file Path to JSON file with financial statement data (must contain income_statement, balance_sheet, cash_flow, and optionally market_data objects) options: -h, --help Show help message and exit --format {text,json} Output format (default: text) --category {profitability,liquidity,leverage,efficiency,valuation} Calculate only a specific ratio category; omit to calculate all 5 categories (20 ratios)
Ratios computed: ROE, ROA, Gross Margin, Operating Margin, Net Margin, Current Ratio, Quick Ratio, Cash Ratio, Debt-to-Equity, Interest Coverage, DSCR, Asset Turnover, Inventory Turnover, Receivables Turnover, DSO, P/E, P/B, P/S, EV/EBITDA, PEG Ratio.
scripts/dcf_valuation.py
scripts/dcf_valuation.pyDiscounted Cash Flow enterprise and equity valuation with WACC calculation and sensitivity analysis.
usage: dcf_valuation.py [-h] [--format {text,json}] [--projection-years PROJECTION_YEARS] input_file positional arguments: input_file Path to JSON file with valuation data (must contain historical and assumptions objects) options: -h, --help Show help message and exit --format {text,json} Output format (default: text) --projection-years PROJECTION_YEARS Number of projection years; overrides the value in the input file (default: 5)
Outputs: WACC (CAPM), projected revenue and FCF, terminal value (perpetuity growth + exit multiple), enterprise value, equity value, value per share, and a two-way sensitivity table (WACC vs terminal growth rate).
scripts/budget_variance_analyzer.py
scripts/budget_variance_analyzer.pyAnalyze actual vs budget vs prior year performance with materiality filtering and executive summaries.
usage: budget_variance_analyzer.py [-h] [--format {text,json}] [--threshold-pct THRESHOLD_PCT] [--threshold-amt THRESHOLD_AMT] input_file positional arguments: input_file Path to JSON file with budget data (must contain line_items array with actual, budget, and optionally prior_year values) options: -h, --help Show help message and exit --format {text,json} Output format (default: text) --threshold-pct THRESHOLD_PCT Materiality threshold as percentage (default: 10.0) --threshold-amt THRESHOLD_AMT Materiality threshold as dollar amount (default: 50000.0)
Outputs: Executive summary (revenue/expense/net impact), all variances with favorability classification, material variances filtered by threshold, department summary, and category summary.
scripts/forecast_builder.py
scripts/forecast_builder.pyDriver-based revenue forecasting with rolling cash flow projection and multi-scenario modeling.
usage: forecast_builder.py [-h] [--format {text,json}] [--scenarios SCENARIOS] input_file positional arguments: input_file Path to JSON file with forecast data (must contain historical_periods, drivers, assumptions, cash_flow_inputs, and scenarios objects) options: -h, --help Show help message and exit --format {text,json} Output format (default: text) --scenarios SCENARIOS Comma-separated list of scenarios to model (default: base,bull,bear)
Outputs: Trend analysis (linear regression, growth rates, seasonality index), scenario comparison table, per-period forecast detail (revenue, COGS, gross profit, OpEx, operating income), and 13-week rolling cash flow projection with runway calculation.