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/byggdastofnunWrote 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/byggdastofnun)<a href="https://agentmods.dev/skills/jokull/icelandic-data/byggdastofnun"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/byggdastofnun/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/byggdastofnun"><img src="https://agentmods.dev/badge/skills/jokull/icelandic-data/byggdastofnun.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00036 | $0.01573 |
| Opus 5 | $0.00018 | $0.00787 |
| Sonnet 5 | $0.00007 | $0.00315 |
| Haiku 4.5 | $0.00004 | $0.00157 |
Grade A, and why
byggdastofnun 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 10d 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 — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Byggdastofnun — Regional-development dashboards
Iceland's Regional Development Institute (Byggdastofnun, from
byggdastofnun.is) publishes 11 Tableau-Public dashboards covering rural and
regional statistics: population, income, property taxes, energy, state
employment, grants, and the municipal-history map.
All 11 dashboards live on byggdastofnun.is/is/utgefid-efni/maelabord/<slug>
and embed a viz from public.tableau.com/views/<workbook>/<view>.
Scope & dashboards
| Slug | Title | Workbook / view |
|---|---|---|
breytingar-a-ibuafjolda-sundurlidun |
Breytingar á íbúafjölda — sundurliðun | ibuafj-breyting / sveitarfelog |
fasteignagjold |
Fasteignagjöld viðmiðunareignar | fasteignagjold / fasteignagjold |
ibuafjoldi-1-januar |
Íbúafjöldi sveitarfélaga og byggðakjarna | ibuafj_sveitarf-byggdakj / ibuafjoldi |
ibuakonnun |
Íbúakönnun landshlutanna | ibuakonnun / spurningar |
mannfjoldaspa |
Mannfjöldaspá 2023–2074 | mannfjoldaspa / mannspa |
orkukostnadur |
Orkukostnaður heimila | Orkukostnaurheimila / orkukostnadur |
rikisfang |
Ríkisfang íbúa | rikisfang / rikisfang |
rikisstorf |
Stöðugildi á vegum ríkisins | rikisstorf / stodugildi |
styrkir |
Styrkir og framlög | styrkir / styrkir |
sveitarfelagaskipan |
Sveitarfélagaskipan frá 1875 | sveitarfelagamork / Tmabil |
tekjur |
Tekjur einstaklinga eftir svæðum | tekjur / tekjur |
All 11 Tableau workbooks are public (no auth, no token). They are cached content on Tableau Public's CDN and refresh when Byggdastofnun republishes.
Architecture
byggdastofnun.is is built on Moya CMS (Icelandic vendor). The index
page .../maelabord lists each dashboard with an anchor; each sub-page
embeds the Tableau view inside an <iframe>. This skill parses that pattern
— one iframe per sub-page — to keep a catalog fresh.
For structured data extraction, Tableau Public does not expose a clean
CSV path (?:format=csv returns HTML). The maskina skill
documents the two-step VizQL startSession → bootstrapSession flow used
to scrape structured poll data from a Tableau Public workbook; the same
pattern applies here if/when a downstream task needs tabular access.
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.
- 10d ago First seen · 116 lines · 36 tokens per session scan A 367b9560edb4
byggdastofnun is a skill published in the GitHub repository jokull/icelandic-data (52 stars, last pushed yesterday), licensed MIT. It adds 36 tokens to every session and 1,573 once invoked, about $0.0002 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.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
insight-error-page
Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…
next-partial-prefetching-adoption
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…