What is vehicle-data-and-vin?

A set of rules for handling vehicle identification numbers (VINs), the 17-character codes assigned to vehicles. It checks the format and keeps VIN decoding separate from state fee calculations.

Use it when building CarFeeCalc workflows that accept VINs, validate them, connect to an approved vehicle-data provider, and calculate state fees separately.

It helps prevent invalid VINs and unsupported claims about a vehicle’s details, such as its model, price, weight, or tax category.

vehicle-data-and-vin — Skill for Claude Code and Codex by arifaidev

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 arifaidev/carfeecalc-mcp --skill vehicle-data-and-vin

Clone the repo

git clone --depth 1 https://github.com/arifaidev/carfeecalc-mcp

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/arifaidev/carfeecalc-mcp/vehicle-data-and-vin/github.svg)](https://agentmods.dev/skills/arifaidev/carfeecalc-mcp/vehicle-data-and-vin)

Your own site

<a href="https://agentmods.dev/skills/arifaidev/carfeecalc-mcp/vehicle-data-and-vin"><img src="https://agentmods.dev/badge/skills/arifaidev/carfeecalc-mcp/vehicle-data-and-vin/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/arifaidev/carfeecalc-mcp/vehicle-data-and-vin"><img src="https://agentmods.dev/badge/skills/arifaidev/carfeecalc-mcp/vehicle-data-and-vin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 78 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 original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00078
Opus 5.5	$0.00000	$0.00031
Sonnet 5.5	$0.00000	$0.00016
Haiku 4.5	$0.00000	$0.00008

Measured 2mo ago against content hash 1d32dea67ac1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vehicle-data-and-vin 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 2mo 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.

skills/vehicle-data-and-vin/SKILL.md · 8 lines

What it actually says

Vehicle Data and VIN

Handle VIN workflows safely for CarFeeCalc.

Validate the 17-character VIN format and reject invalid characters such as I, O, and Q. Do not claim decoded make, model, trim, MSRP, weight, or tax classification without a configured authoritative or approved vehicle-data provider.

Keep VIN decoding separate from state fee calculation so vehicle facts can be updated independently.

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.

2mo ago First seen · 8 lines · 0 tokens per session scan A 1d32dea67ac1

Subscribe to this mod's changes

vehicle-data-and-vin is a skill published in the GitHub repository arifaidev/carfeecalc-mcp (0 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 78 tokens. 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 2026-08-31.

vehicle-data-and-vin next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
vehicle-data-and-vinarifaidev/carfeecalc-mcp	Skill	0	2mo ago	MIT	A	0	Claude Code, Codex
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