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/jokull/icelandic-datanpx agentmods add skills/jokull/icelandic-data/reykjavikWrote 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/reykjavik)<a href="https://agentmods.dev/skills/jokull/icelandic-data/reykjavik"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/reykjavik/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/jokull/icelandic-data/reykjavik"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/reykjavik.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Data Exfiltration · line 54 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.04630 |
| Opus 5 | $0.00000 | $0.02315 |
| Sonnet 5 | $0.00000 | $0.00926 |
| Haiku 4.5 | $0.00000 | $0.00463 |
Grade A, and why
reykjavik 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 9d 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 -X POST "https://velstat.reykjavik.is/PxWeb/api/v1/is/VELSTAT/200.%20Arsskyrsla/11%20Mannfjoldi/VEL11008.px" \ How it starts
The opening of the file, as written. The whole thing — 395 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Reykjavíkurborg (Reykjavík Municipality)
Open data from Reykjavík City via two APIs:
- CKAN API at gagnagatt.reykjavik.is - downloadable CSV files
- PX-Web API at velstat.reykjavik.is - welfare statistics (requires POST queries)
Data Scope
589 CKAN datasets + 293 PX-Web tables covering municipal operations, social services, demographics, and infrastructure.
Full catalog: data/reykjavik_catalog.md — browse this first to find the right dataset before querying APIs.
- Financial: Annual accounts by department and fund (Ársuppgjör)
- Education: School enrollment, music schools, after-school programs
- Welfare: Home support services, elderly care, disability services
- Infrastructure: Water quality, waste management, energy consumption
- Demographics: Population by district, housing, families
- Civic: Election data, website analytics, service usage
APIs
CKAN API (gagnagatt.reykjavik.is)
Base URL: https://gagnagatt.reykjavik.is/api/3/action/
No authentication required. Returns CSV files directly.
PX-Web API (velstat.reykjavik.is)
Base URL: https://velstat.reykjavik.is/PxWeb/api/v1/is/VELSTAT/
No authentication required. Returns JSON metadata (GET) or CSV data (POST).
Categories:
| Path | Description |
|---|---|
000. Lykiltölur/ |
Key statistics |
100. Manadarleg tolfraedi/ |
Monthly statistics |
200. Arsskyrsla/ |
Annual reports |
Subcategories (e.g., in 200. Arsskyrsla/):
02 Fjarhagsadstod/- Financial assistance07 Barnavernd Reykjavikur/- Child protection10. Heimilisofbeldi/- Domestic violence11 Mannfjoldi/- Population
Fetch all data from a table:
curl -X POST "https://velstat.reykjavik.is/PxWeb/api/v1/is/VELSTAT/200.%20Arsskyrsla/11%20Mannfjoldi/VEL11008.px" \
-H "Content-Type: application/json" \
-d '{"query": [], "response": {"format": "csv"}}' \
-o output.csv
# Convert encoding (output is Windows-1252)
iconv -f WINDOWS-1252 -t UTF-8 output.csv > output_utf8.csv
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.
- 9d ago First seen · 395 lines · 0 tokens per session scan A 02ca8b5a114c
reykjavik is a skill published in the GitHub repository jokull/icelandic-data (52 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,630 tokens. 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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