hagstofan

hagstofan is a skill for Claude Code, Codex from jokull/icelandic-data. It costs 40 tokens per session (2,008 once invoked), scanned A, original, MIT.

An interface to Statistics Iceland's PX-Web service, the official system for publishing Icelandic statistics. It covers areas such as population, the economy, prices, trade, wages, education and health.

In plain words
What is it for?
Use it to browse available tables, inspect their definitions and download complete or filtered datasets through the API. It is suited to national-statistics research and repeatable data pipelines.
Why use it?
It avoids browsing statistical tables manually and helps retrieve only the rows and categories needed. Results can be requested as CSV or JSON for further analysis.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to browse available tables, inspect their definitions and download complete or filtered datasets through the API. It is suited to national-statistics research and repeatable data pipelines.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jokull/icelandic-data/hagstofan
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 jokull/icelandic-data --skill hagstofan
Clone the repo
git clone --depth 1 https://github.com/jokull/icelandic-data

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.

agentmods badge for hagstofan

README.md
[![agentmods](https://agentmods.dev/badge/skills/jokull/icelandic-data/hagstofan/github.svg)](https://agentmods.dev/skills/jokull/icelandic-data/hagstofan)
Your own site
<a href="https://agentmods.dev/skills/jokull/icelandic-data/hagstofan"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/hagstofan/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.

agentmods 80×15 button for hagstofan

Your own site · 80×15
<a href="https://agentmods.dev/skills/jokull/icelandic-data/hagstofan"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/hagstofan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,008 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
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 31
    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.
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.02008
Opus 5 $0.00020 $0.01004
Sonnet 5 $0.00008 $0.00402
Haiku 4.5 $0.00004 $0.00201

Measured 2d ago against content hash 52e50a1da454, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

hagstofan 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 2d 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 -s "https://px.hagstofa.is/pxis/api/v1/is/" | jq
.agents/skills/hagstofan/SKILL.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hagstofan (Statistics Iceland)

Official statistics for Iceland via PX-Web API.

API

Base URL: https://px.hagstofa.is/pxis/api/v1/is/

No authentication required. Returns JSON metadata (GET) or CSV/JSON data (POST).

Fetching Data

Browse categories

curl -s "https://px.hagstofa.is/pxis/api/v1/is/" | jq
curl -s "https://px.hagstofa.is/pxis/api/v1/is/Efnahagur/" | jq

Get table metadata

curl -s "https://px.hagstofa.is/pxis/api/v1/is/{path}/{TABLE}.px" | jq

Fetch all data as CSV

curl -X POST "https://px.hagstofa.is/pxis/api/v1/is/{path}/{TABLE}.px" \
  -H "Content-Type: application/json" \
  -d '{"query": [], "response": {"format": "csv"}}'

Fetch filtered data

curl -X POST "https://px.hagstofa.is/pxis/api/v1/is/{path}/{TABLE}.px" \
  -H "Content-Type: application/json" \
  -d '{
    "query": [
      {"code": "Tollskrárnúmer", "selection": {"filter": "item", "values": ["87116011", "87120000"]}}
    ],
    "response": {"format": "csv"}
  }'

API Categories

Category Path Description
Population Ibuar/ Demographics, migration, families
Economy Efnahagur/ GDP, national accounts, trade
Prices Verdlag/ CPI, price indices
Industries Atvinnuvegir/ Fishing, agriculture, tourism
Society Samfelag/ Education, health, crime
Environment Umhverfi/ Climate, waste, energy
Historical Sogulegar/ Long-term historical series

Key Datasets

Foreign Trade (Tollskrá)

Path: Efnahagur/utanrikisverslun/1_voruvidskipti/

Table Period Description
03_inntollskra/UTA03803.px 2023-2025 Imports by tariff, chapters 84-99 (monthly)
06_tollskrarnumereldra/UTA13813.px 2017-2022 Imports by tariff, chapters 84-99 (annual)
06_tollskrarnumereldra/UTA13823.px 2012-2016 Imports by tariff, chapters 84-99 (annual)

Units available: kg (weight), cif (value ISK), vEin (units)

Read the full file on GitHub · 166 lines

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.

  1. 2d ago Changed · +8 lines 52e50a1da454
  2. 10d ago First seen · 158 lines · 40 tokens per session scan A f172d821ed6c

Subscribe to this mod's changes

hagstofan is a skill published in the GitHub repository jokull/icelandic-data (52 stars, last pushed today), licensed MIT. It adds 40 tokens to every session and 2,008 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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