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/umferdnpx skills add jokull/icelandic-data --skill umferdgit 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/umferd)<a href="https://agentmods.dev/skills/jokull/icelandic-data/umferd"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/umferd.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 5.1 | $0.00037 | $0.01612 |
| Opus 5 | $0.00018 | $0.00806 |
| Sonnet 5 | $0.00007 | $0.00322 |
| Haiku 4.5 | $0.00004 | $0.00161 |
Grade A, and why
umferd scanned grade A with 1 finding 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 5d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl "https://gagnaveita.vegagerdin.is/geoserver/gis/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=gis:umferdvika_2021_1&outputFormat=application/json&srsName=EPSG:4326" How it starts
The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Umferð (Traffic) — Vegagerðin
Real-time traffic counter data from the Icelandic Road Administration via GeoServer WFS.
API
Base URL: https://gagnaveita.vegagerdin.is/geoserver/gis/ows?
No authentication required. WFS 1.0.0 protocol. Returns GeoJSON, CSV, GML, or Shapefile.
Layers
| Layer | Features | Description |
|---|---|---|
gis:umferdvika_2021_1 |
~254 | Real-time counters: 15-min count, today's count, rolling 7-day daily totals |
gis:umf_talningar_stefnugreint_stadir |
~248 | Station metadata with direction, elevation, compass heading |
WFS Request Pattern
{base}?service=WFS&version=1.0.0&request=GetFeature&typeName={layer}&outputFormat=application/json&srsName=EPSG:4326
Parameters
| Parameter | Values |
|---|---|
srsName |
EPSG:4326 (WGS84) or EPSG:3057 (ISN93) |
outputFormat |
application/json, csv, GML2, GML3, shape-zip |
cql_filter |
e.g. IDSTOD=912 to filter by station |
maxFeatures |
Limit number of features returned |
Example Requests
# All stations as GeoJSON (WGS84)
curl "https://gagnaveita.vegagerdin.is/geoserver/gis/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=gis:umferdvika_2021_1&outputFormat=application/json&srsName=EPSG:4326"
# Single station
curl "https://gagnaveita.vegagerdin.is/geoserver/gis/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=gis:umferdvika_2021_1&cql_filter=IDSTOD=912&outputFormat=application/json&srsName=EPSG:4326"
Real-Time Layer Schema (gis:umferdvika_2021_1)
| Field | Type | Description |
|---|---|---|
| OBJECTID | INT | Unique per measurement point (direction-specific) |
| IDSTOD | INT | Station ID (may appear twice for directional stations) |
| NAFN | STRING | Station name (e.g., "Gufuá", "Dettifoss") |
| STEFNA | STRING | Direction — see below |
| UMF_15MIN | INT | Vehicles in last 15 minutes |
| MEDALHRADI_15MIN | INT | Avg speed km/h last 15 min (only for type 4 classifiers) |
| UMF_I_DAG | INT | Vehicles since midnight |
| DAGS_SIDUSTUGAGNA | DATE | Timestamp of latest data received |
| UMF_DAGUR1..7 | INT | Daily vehicle count for last 1..7 days |
| DAGS_DAGUR1..7 | DATE | Date for each of the 7 daily counts |
| MAELISTOD_TEGUND | INT | Station type (see below) |
| SHAPE | POINT | Coordinates [lon, lat] in requested SRS |
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.
- 5d ago First seen · 133 lines · 37 tokens per session scan A d7ac69c5eb22
umferd is a skill published in the GitHub repository jokull/icelandic-data (52 stars, last pushed yesterday), licensed MIT. It adds 37 tokens to every session and 1,612 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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