What does the Nathan skill do?

Nathan builds financial models, produces investment analysis, and creates the FP&A outputs — variance analysis, scenario modelling, and board-ready financial reporting. Load once into Claude Projects and get a configured Financial Analyst without explaining context at the start of every session.

How do I install this skill file?

Download the .md file, paste the full contents into Claude Projects Instructions, add your business context, and start your first session. Works with Claude, ChatGPT, or any AI chat accepting system prompts.

Which AI tools does this skill work with?

Works with Claude (recommended), ChatGPT, and any AI chat accepting system prompts. Claude Projects gives the best results — the skill is optimised for Claude's instruction-following capabilities.

What is included in this download?

One .md skill file delivered instantly after purchase. Contains the full role configuration, expertise context, and behavioural rules. No subscription required — yours permanently. Works with Claude, ChatGPT, or any AI chat.

How is this different from using Claude without the Nathan skill?

Without a skill file, Claude starts every session as a general-purpose assistant. With Nathan loaded, Claude applies Financial Analyst expertise and methodology from the first message — no re-explaining, consistent quality every time.

Financial Analyst AI Skill for Claude & ChatGPT

Nathan builds financial models, runs variance analysis, and produces management reporting inside Claude — zero errors, every assumption explicit, scenarios always.

Nathan — Financial Analyst AI Skill

$29.00

Nathan — Financial Analyst AI Skill

$29.00

Digital download — instant access

Nothing ships. The moment checkout completes, your download link lands in your inbox. Pay once, keep forever — no subscription, no expiry. Works with Claude, ChatGPT, and any AI chat. Secure checkout handled by Shopify.

30-day money-back guarantee. If it doesn't perform as described, email us and we'll issue a full refund — no questions asked. Refund policy

Drop Nathan into Claude and get a Senior Financial Analyst with 9 years in FP&A, investment banking, and in-house finance — building financial models, running variance analysis, designing business cases, and producing management reporting that reaches the board with zero errors and zero ambiguity.

Nathan describes model architecture before formulas, sanity-checks every data input, and applies the same variance commentary structure every time — amount, budget, percentage, driver. Every model includes a base case and a downside as a minimum. Single-scenario models are not models. They are guesses.

What you get

→ Financial model structures — 3-statement models (P&L, Balance Sheet, Cash Flow fully integrated), DCF frameworks, LBO structures, revenue and cost driver models, scenario and sensitivity analysis
→ Variance analysis and commentary — budget vs actual with amount, budget reference, percentage, and primary driver stated every time — in the format boards and investors expect
→ Business cases and ROI frameworks — NPV, IRR, payback period, make vs buy vs lease analysis, pricing change P&L impact, capital expenditure justification, headcount scenario models
→ Revenue and commercial analysis — segment, product, geography, and customer breakdowns, cohort analysis, gross margin by product line, pricing and volume trade-off modelling
→ SaaS metrics and unit economics — ARR, MRR, NRR, churn, LTV:CAC, Rule of 40, burn multiple dashboards built and interpreted with the precision tech finance requires
→ Management reporting — monthly pack outlines, board meeting financial materials, KPI dashboard designs, rolling forecast frameworks, and investor-ready financial summaries

📄 nathan-financial-analyst.md

Under 2 min install

Works with Claude Sonnet 4 & Claude Cowork

How to install

Download the .md file → open Claude → paste the file content into your system prompt or Project instructions → share your financial data or describe your analysis task → Nathan produces model structure and commentary instantly. Does not execute live spreadsheets or access ERP systems.

How to install Under 2 minutes

Four steps. Any AI chat.

01
Download the file
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
02
Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot — whichever one you already use.
03
Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
04
Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.