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Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Performs rigorous Software as a Service (SaaS) cohort analysis: retention curves, Lifetime Value (LTV), Customer Acquisition Cost (CAC) payback, Net Revenue Retention (NRR), Gross Revenue Retention (GRR), and expansion versus churn decomposition with dollar-weighted and logo-weighted views. Use when diagnosing retention problems, forecasting Annual Recurring Revenue (ARR), evaluating pricing changes, segmenting customer health, validating product-market fit, or preparing board and investor key-performance-indicator reports.
SaaS financial modeling engine that generates unit economics models, feature ROI calculators, pricing scenario analyses, TAM/SAM/SOM sizing, build-vs-buy comparisons, and revenue projections from natural language inputs. Use when building business cases, calculating LTV/CAC/payback, modeling pricing changes, estimating feature revenue impact, running sensitivity analyses, or preparing financial justifications for product investments. Produces actual calculations with explicit assumptions and sensitivity ranges.
Models cash burn, runway, and scenario-based cash flow with explicit triggers, default-alive versus default-dead diagnosis, and a 13-week rolling forecast. Use when planning a fundraise, deciding on layoffs, evaluating hiring plans, modeling a downturn, presenting cash position to the board, or pressure-testing a Chief Financial Officer (CFO) operating plan.
Ranks competing investments using Net Present Value (NPV), Internal Rate of Return (IRR), payback period, Profitability Index (PI), and strategic option value - then produces a portfolio-level recommendation. Use when evaluating capital expenditure requests, comparing Mergers and Acquisitions (M&A) targets, sizing Research and Development (R&D) bets, prioritizing engineering investments, sun-setting initiatives, or preparing a board capital allocation memo.
Builds a transparent Discounted Cash Flow (DCF) valuation with a 5-10 year forecast, terminal value, Weighted Average Cost of Capital (WACC) derivation, sensitivity tables, and a football-field summary. Use when valuing a company, business unit, acquisition target, or capital project; pressure-testing an investment thesis; preparing a board valuation memo; or stress-testing assumptions against precedent transactions and trading comparables.
Performs structured fundamental analysis of annual reports (Form 10-K, Form 10-Q): ratio analysis, quality of earnings, working-capital efficiency, segment decomposition, accounting red flags, and Management's Discussion and Analysis (MD&A) parsing. Use when underwriting an investment, evaluating a competitor, preparing for an earnings call, building peer comparables, or screening for accounting risk.
| name | mcp-builder |
| description | Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. |
Four-phase workflow: Deep Research & Planning, Implementation, Review & Test, Create Evaluations. Supports TypeScript (recommended) and Python. Covers tool design, input/output schemas, error handling, pagination, and testing.
