Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/DaizeDong/buy-me-a-carnpx agentmods add skills/daizedong/buy-me-a-car/state-fee-lookupWrote 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.
[](https://agentmods.dev/skills/daizedong/buy-me-a-car/state-fee-lookup)<a href="https://agentmods.dev/skills/daizedong/buy-me-a-car/state-fee-lookup"><img src="https://agentmods.dev/badge/skills/daizedong/buy-me-a-car/state-fee-lookup/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.
<a href="https://agentmods.dev/skills/daizedong/buy-me-a-car/state-fee-lookup"><img src="https://agentmods.dev/badge/skills/daizedong/buy-me-a-car/state-fee-lookup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00103 | $0.03404 |
| Opus 5 | $0.00051 | $0.01702 |
| Sonnet 5 | $0.00021 | $0.00681 |
| Haiku 4.5 | $0.00010 | $0.00340 |
Grade A, and why
state-fee-lookup 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.
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.
How it starts
The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.
State Fee Lookup
Caveat: this skill is one author's playbook + 5-scenario stress test. Verify state fees / CPO terms / EV credits / dealer practices against current sources before quoting numbers to a dealer or making financial decisions. Not tax, legal, or financial advice. last_verified: 2026-05-18 Scope: narrow per-state fee retrieval. For OTD math see
../otd-calculator/SKILL.md. For full negotiation/closing flow see../orchestrator/SKILL.md.
Lookup pattern
Given a state code + buyer ZIP, return the 6-field summary:
State : XX
RateBase : N.NNN% (state-level)
RateLocal: N.NN% (county/city stack at ZIP, 0 if state has no local stacking)
DocCap : $NNN or "no cap" (statutory legal max)
Title : $NN
Reg(1yr) : $NN (sedan/SUV; weight-based variants noted)
TradeCr : YES / NO / partial
All-state summary
| State | Base rate | Local typ | Doc cap | Title | Reg | Trade credit |
|---|---|---|---|---|---|---|
| AL | 2% | 2-4% | none | $20 | $30 | Yes |
| AK | 0% | 0-7.5% | none | $15 | $100 | N/A |
| AZ | 5.6% | 1-5% | none | $4 | $50 | Yes |
| AR | 6.5% | 1-5% | none | $10 | $25 | Yes |
| CA | 7.25% | 1-2% | $85 | $25 | $250 | NO |
| CO | 2.9% | 1-5% | none | $7 | $90 | Yes |
| CT | 6.35% (7.75% >$50k) | 0% | none | $25 | $80 | Yes |
| DE | 0% (4.25% doc fee) | 0% | n/a structure | $35 | $50 | N/A |
| DC | 6-9% excise weight | 0% | none | $26 | $70 | Yes |
| FL | 6% | 0.5-2% on first $5k | none | $77 | $225 | Yes |
| GA | 6.6% TAVT one-time | n/a | none | $18 | $20 | Yes (TAVT) |
| HI | 4% GET | 0-0.5% | none | $5 | $45 | Yes |
| ID | 6% | 0-3% | none | $14 | $70 | Yes |
| IL | 6.25% | 0-4.75% | $347 | $155 | $151 | Yes |
| IN | 7% | 0% | $251.05 | $15 | $40 | Yes |
| IA | 6% | 0-1% | none | $25 | $100 | Yes |
| KS | 6.5% | 0-4% | none | $10 | $40 | Yes |
| KY | 6% | 0% | none | $9 | $65 | NO |
| LA | 4.45% | 1-5% | $436 | $69 | $50 | Yes |
| ME | 5.5% | 0% | none | $33 | $35 | Yes |
| MD | 6% | 0% | $800 (eff. July 1 2024) | $499-799 | $135 | Yes |
| MA | 6.25% | 0% | none | $75 | $60 | Yes |
| MI | 6% | 0% | $230 | $15 | $100 | Yes (capped $9k 2025) |
| MN | 6.5% | 0-1.5% | $350 | $11 | $100 | Yes |
| MS | 7% (5% trucks) | 0% | none | $9 | $25 | Yes |
| MO | 4.225% | 0-5.5% | $604.47 | $11 | $50 | Yes |
| MT | 0% | 0% | none | $10 | $90 | N/A |
| NE | 5.5% | 0-2% | none | $10 | $30 | Yes |
| NV | 6.85% | 0-1.5% | none | $29 | $33 | Yes |
| NH | 0% | 0% | $27 | $25 | $90 | N/A |
| NJ | 6.625% | 0% | $799 | $85 | $70 | Yes |
| NM | 4% excise | 0% | none | $5 | $35 | Yes |
| NY | 4% | 4-4.875% | $175 | $50 | $100 | Yes |
| NC | 3% HUT | 0% | $129 | $52 | $36 | Yes (HUT) |
| ND | 5% | 0-3% | none | $5 | $90 | Yes |
| OH | 5.75% | 0.25-2.25% | $250 | $15 | $31 | Yes |
| OK | 4.5% (excise 3.25%) | 0-7% | none | $11 | $96 | Partial |
| OR | 0% | 0% | $250 | $122 | $100 | N/A |
| PA | 6% (8% Philly, 7% Allegheny) | varies by ZIP | none | $58 | $39 | Yes |
| RI | 7% | 0% | $250 | $52 | $30 | Yes |
| SC | 5% IMF cap $500 | 0% | none | $15 | $40 | Yes |
| SD | 4.5% excise | 0-2% | none | $10 | $75 | Yes |
| TN | 7% | 1.5-2.75% | none | $11 | $24 | Yes |
| TX | 6.25% | 0% | $225 | $33 | $50 (+$200 EV) | Yes |
| UT | 4.85% | 1-3% | none | $6 | $44 | Yes |
| VT | 6% | 0% | none | $35 | $70 | Yes |
| VA | 4.15% min $75 | 0-1% | $599 | $15 | $41 | NO |
| WA | 6.5% +MVET | 0.5-3.5% | $200 | $15 | $80 | Yes |
| WV | 6% privilege | 0% | $575 | $15 | $30 | Yes |
| WI | 5% | 0-0.5% | none | $164 | $75 | Yes |
| WY | 4% | 0-2% | none | $15 | $30 | Yes |
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.
- 12d ago First seen · 189 lines · 103 tokens per session scan A d92f28a53837
state-fee-lookup is a skill published in the GitHub repository DaizeDong/buy-me-a-car (5 stars, last pushed 7d ago), licensed MIT. It adds 103 tokens to every session and 3,404 once invoked, about $0.0005 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 2026-08-31.
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