lease-vs-cash-analyzer SKILL.md skillA

lease-vs-cash-analyzer from daizedong/buy-me-a-car is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add daizedong/buy-me-a-car/lease-vs-cash-analyzer@git:20260922.09bd4b1

Pins git:20260922.09bd4b1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
daizedong/buy-me-a-car
Path
skills/lease-vs-cash-analyzer/SKILL.md
Versions recorded
5
Latest version
git:20260922.09bd4b1, committed Sep 22, 2026
First version recorded
Jun 22, 2026
Size
4,985 bytes
Repository stars
10
License
MIT

Use to compute lease structure (cap cost / money factor / residual / acquisition / disposition), compare lease total cost vs cash purchase, decide lease vs buy given buyer's ownership horizon, and check captive lender early-buyout policy. Triggers include "lease or buy", "lease 数学", "compute lease monthly", "money factor markup", "lease cash incentive", "lease vs cash break-even", and Spanish phrase "leasing o compra al contado".

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Lease vs Cash Analyzer

Compare complete written offers on the same vehicle, mileage and ownership
horizon. A low monthly payment alone does not establish a cheaper deal. Preserve
the buyer's chosen financing method and private affordability limits.

## Required inputs

- Agreed vehicle value, gross and adjusted capitalized cost, each incentive and
  cap reduction, and each financed/upfront fee.
- Residual dollar amount and its MSRP base, money factor, term, mileage allowance,
  payment dates, first-payment treatment and total due at signing.
- Applicable lease taxes from current jurisdiction/transaction evidence, with
  upfront, periodic and purchase-option taxes separated.
- Contractual acquisition/disposition/purchase fees, wear/mileage rules, security
  deposit/refund terms, and any incentive restrictions.
- Written cash or loan alternative, comparison horizon, estimated resale range,
  maintenance/insurance differences and an explicit discount-rate assumption.

Do not insert default lender waiting periods, residual percentages, money factors,
fee ranges or state lease-tax classifications. Missing terms remain unverified.

## Standard monthly lease formula
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add daizedong/buy-me-a-car/lease-vs-cash-analyzer@sha256:a7b6f7303c95bd50

The line at the top of this page pins the label git:20260922.09bd4b1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_d3ziwc7llthivcs4.svg)](https://markdownregistry.com/a/art_d3ziwc7llthivcs4)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jun 22, 2026 and Sep 22, 2026, about one every 23 days.

versioncommittedcommitsizeaudit
git:20260922.09bd4b1 latest2026-09-22 09bd4b1 4,985 BA view · diff
git:20260730.78fbf1a2026-07-30 78fbf1a 10,053 BA view · diff
git:20260723.567149d2026-07-23 567149d 10,056 BA view · diff
git:20260717.97188492026-07-17 9718849 10,056 BA view · diff
git:20260622.622f22f2026-06-22 622f22f 10,076 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4985 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

daizedong/buy-me-a-car · 10 stars · license MIT · pushed 2026-10-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_d3ziwc7llthivcs4
GET https://markdownregistry.com/api/v1/resolve?ref=daizedong/buy-me-a-car/lease-vs-cash-analyzer
GET https://markdownregistry.com/api/v1/blob/a7b6f7303c95bd50d16d965fc2250a24065eba85a7ca03d8cca52c1bac98b28b

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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