financial-calculator

financial-calculator is a skill for Codex from dkyazzentwatwa/chatgpt-skills. It costs 31 tokens per session (182 once invoked), scanned A, original, no licence file.

A calculator for financial models involving loans, investments, savings, retirement, net present value, and risk.

In plain words
What is it for?
Use it to model payments, returns, savings plans, retirement outcomes, present values, and risk, with charts where supported.
Why use it?
It helps produce consistent calculations and schedules for financial scenarios.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to model payments, returns, savings plans, retirement outcomes, present values, and risk, with charts where supported.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dkyazzentwatwa/chatgpt-skills/financial-calculator
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 dkyazzentwatwa/chatgpt-skills --skill financial-calculator
Clone the repo
git clone --depth 1 https://github.com/dkyazzentwatwa/chatgpt-skills

Made for: 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 financial-calculator

README.md
[![agentmods](https://agentmods.dev/badge/skills/dkyazzentwatwa/chatgpt-skills/financial-calculator/github.svg)](https://agentmods.dev/skills/dkyazzentwatwa/chatgpt-skills/financial-calculator)
Your own site
<a href="https://agentmods.dev/skills/dkyazzentwatwa/chatgpt-skills/financial-calculator"><img src="https://agentmods.dev/badge/skills/dkyazzentwatwa/chatgpt-skills/financial-calculator/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for financial-calculator

Your own site · 80×15
<a href="https://agentmods.dev/skills/dkyazzentwatwa/chatgpt-skills/financial-calculator"><img src="https://agentmods.dev/badge/skills/dkyazzentwatwa/chatgpt-skills/financial-calculator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 182 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. Third-party audits
  • Socket pass 9 Apr 2026
  • Snyk pass 9 Apr 2026
How audits are shown
Origin unknown No closer match found 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 $0.00031 $0.00182
Opus 5 $0.00015 $0.00091
Sonnet 5 $0.00006 $0.00036
Haiku 4.5 $0.00003 $0.00018

Measured 12d ago against content hash 4e8ff4d782b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

financial-calculator 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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/financial_calc.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

financial-calculator/SKILL.md · 28 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 12d ago First seen · 28 lines · 31 tokens per session scan A 4e8ff4d782b8

Subscribe to this mod's changes

financial-calculator is a skill published in the GitHub repository dkyazzentwatwa/chatgpt-skills (100 stars, last pushed 5mo ago), with no licence file. It adds 31 tokens to every session and 182 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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