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.
npx agentmods add skills/jokull/icelandic-data/carnpx skills add jokull/icelandic-data --skill cargit clone --depth 1 https://github.com/jokull/icelandic-dataWrote 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/jokull/icelandic-data/car)<a href="https://agentmods.dev/skills/jokull/icelandic-data/car"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/car.svg" alt="Measured on agentmods" 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 | $0.00020 | $0.00342 |
| Opus 5 | $0.00010 | $0.00171 |
| Sonnet 5 | $0.00004 | $0.00068 |
| Haiku 4.5 | $0.00002 | $0.00034 |
Grade A, and why
car 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 4d 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.
What it actually says
Island.is Vehicle Lookup
Individual vehicle lookup via the island.is public GraphQL API.
API
- Endpoint:
POST https://island.is/api/graphql - Auth: None (public)
- Operation:
publicVehicleSearch
Fields
| Field | Description |
|---|---|
permno |
Permanent number (fastanúmer) |
regno |
Registration plate |
vin |
Vehicle Identification Number |
make |
Manufacturer |
vehicleCommercialName |
Model name |
color |
Color |
newRegDate |
Current registration date |
firstRegDate |
First registration date |
vehicleStatus |
Active/deregistered |
nextVehicleMainInspection |
Next inspection due |
co2 / weightedCo2 |
CO₂ emissions (NEDC) |
co2WLTP / weightedCo2WLTP |
CO₂ emissions (WLTP) |
massLaden / mass |
Vehicle weight |
typeNumber |
Type approval number |
Usage
# Lookup by plate number
uv run python scripts/car.py AB123
# Lookup by VIN
uv run python scripts/car.py WVWZZZ3CZWE123456
Caveats
- Search is fuzzy — partial plates may return multiple results
- Some fields may be null for older vehicles
- Rate limits unknown — be conservative with batch lookups
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.
- 4d ago First seen · 50 lines · 20 tokens per session scan A 1bf72e2f950e
car is a skill published in the GitHub repository jokull/icelandic-data (52 stars, last pushed yesterday), licensed MIT. It adds 20 tokens to every session and 342 once invoked, about $0.0001 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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