3-statement-model

3-statement-model is a skill for Claude Code, Codex from GGbond-bo/MemOmics-Agent. It costs 54 tokens per session (4,837 once invoked), scanned A, a copy of 3-statement-model, MIT.

A spreadsheet model connecting an income statement, balance sheet, and cash-flow statement, with schedules for working capital, depreciation, debt, cash, and retained earnings.

In plain words
What is it for?
Use it to complete Excel financial-model templates with formulas, historical data, assumptions, roll-forwards, debt calculations, and sensitivity analysis.
Why use it?
It keeps financial projections linked and recalculating when assumptions or scenarios change instead of relying on copied numbers.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to complete Excel financial-model templates with formulas, historical data, assumptions, roll-forwards, debt calculations, and sensitivity analysis.

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Install with agentmods
npx agentmods add skills/ggbond-bo/memomics-agent/3-statement-model
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add GGbond-bo/MemOmics-Agent --skill 3-statement-model
Clone the repo
git clone --depth 1 https://github.com/GGbond-bo/MemOmics-Agent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for 3-statement-model

README.md
[![agentmods](https://agentmods.dev/badge/skills/ggbond-bo/memomics-agent/3-statement-model.svg)](https://agentmods.dev/skills/ggbond-bo/memomics-agent/3-statement-model)
Your own site
<a href="https://agentmods.dev/skills/ggbond-bo/memomics-agent/3-statement-model"><img src="https://agentmods.dev/badge/skills/ggbond-bo/memomics-agent/3-statement-model.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,837 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 95% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00054 $0.04837
Opus 5 $0.00027 $0.02419
Sonnet 5 $0.00011 $0.00967
Haiku 4.5 $0.00005 $0.00484

Measured 7d ago against content hash 587d8151fea2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

3-statement-model scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

95% identical to 3-statement-model — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

hermes-agent/optional-skills/finance/3-statement-model/SKILL.md · 434 lines

How it starts

The opening of the file, as written. The whole thing — 434 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Environment

This skill assumes headless openpyxl — you are producing an .xlsx file on disk. Follow the excel-author skill's conventions for cell coloring, formulas, named ranges, and sensitivity tables. Recalculate before delivery: python /path/to/excel-author/scripts/recalc.py ./out/model.xlsx.

3-Statement Financial Model Template Completion

Complete and populate integrated financial model templates with proper linkages between Income Statement, Balance Sheet, and Cash Flow Statement.

⚠️ CRITICAL PRINCIPLES — Read Before Populating Any Template

Formulas over hardcodes (non-negotiable):

  • Every projection cell, roll-forward, linkage, and subtotal MUST be an Excel formula — never a pre-computed value
  • When using Python/openpyxl: write formula strings (ws["D15"] = "=D14*(1+Assumptions!$B$5)"), NOT computed results (ws["D15"] = 12500)
  • The ONLY cells that should contain hardcoded numbers are: (1) historical actuals, (2) assumption drivers in the Assumptions tab
  • If you find yourself computing a value in Python and writing the result to a cell — STOP. Write the formula instead.
  • Why: the model must flex when scenarios toggle or assumptions change. Hardcodes break every downstream integrity check silently.

Verify step-by-step with the user:

  1. After mapping the template → show the user which tabs/sections you've identified and confirm before touching any cells
  2. After populating historicals → show the user the historical block and confirm values/periods match source data
  3. After building IS projections → run the subtotal checks, show the user the projected IS, confirm before moving to BS
  4. After building BS → show the user the balance check (Assets = L+E) for every period, confirm before moving to CF
  5. After building CF → show the user the cash tie-out (CF ending cash = BS cash), confirm before finalizing
  6. Do NOT populate the entire model end-to-end and present it complete — break at each statement, show the work, catch errors early

Read the full file on GitHub · 434 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 434 lines · 54 tokens per session scan A 587d8151fea2

Subscribe to this mod's changes

3-statement-model is a skill published in the GitHub repository GGbond-bo/MemOmics-Agent (19 stars, last pushed 5d ago), licensed MIT. It adds 54 tokens to every session and 4,837 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to 3-statement-model, differing in 2 lines, and is treated as a copy.