What is political-party-membership?

A retrieval guide for Estonia’s registered political parties and their current public member lists from the e-Business Register. It can also retrieve membership start dates and direct CSV exports, which are spreadsheet-like data files.

Use it to list registered parties, retrieve a party’s members, and obtain membership data by registry code.

It avoids confusing party membership records with campaign-finance records and provides a repeatable way to download current lists. Historical membership statistics come from a separate source.

political-party-membership — Skill for Claude Code by taivop

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 taivop/marketplace --skill political-party-membership

Clone the repo

git clone --depth 1 https://github.com/taivop/marketplace

Made for: Claude Code.

Or install estonia-public-sources, the plugin that ships this one along with the rest of its 88 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/taivop/marketplace/political-party-membership/github.svg)](https://agentmods.dev/skills/taivop/marketplace/political-party-membership)

Your own site

<a href="https://agentmods.dev/skills/taivop/marketplace/political-party-membership"><img src="https://agentmods.dev/badge/skills/taivop/marketplace/political-party-membership/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/taivop/marketplace/political-party-membership"><img src="https://agentmods.dev/badge/skills/taivop/marketplace/political-party-membership.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 554 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00030	$0.00554
Opus 5	$0.00015	$0.00277
Sonnet 5	$0.00006	$0.00111
Haiku 4.5	$0.00003	$0.00055

Measured 8d ago against content hash e61b50e2f66e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

political-party-membership 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 8d 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.

skills/estonia-public-sources/sources/political-party-membership/SKILL.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Political Party Membership

Use when

You need the official list of registered political parties.
You need a party's public current-member list or membership start dates.

Avoid when

You need campaign finance; use party-funding-data.

Endpoints

Party chooser: https://ariregister.rik.ee/eng/political_party
Member list: https://ariregister.rik.ee/eng/political_party/members/{registry_code}
Direct CSV: https://ariregister.rik.ee/eng/political_party/members/{registry_code}?download=CSV
Historical Power BI statistics: https://ariregister.rik.ee/eng/statistics/political_parties

Workflow

Parse the chooser's party table and take the eight-digit registry code from each /members/{registry_code} link.
Fetch the CSV directly for each requested party. Decode it as UTF-8 with BOM and parse it with semicolon delimiters.
Preserve the party name and registry code from the chooser with every exported row.
Use the Power BI page only for historical aggregates not present in the current lists.

Access reality

Public HTML and CSV, verified 2026-07-14.
The chooser exposes party/member links without JavaScript. The tested CSV response is text/csv and starts with the five-column member header.

Request contract

No authentication or session cookie is required for the chooser or CSV export.
The CSV columns are First name, Last name, Date of birth, Date of starting membership, and Suspension of membership in political party.
HTML member pages paginate with ?page=N, but the CSV export returns the full list; prefer CSV for data work.

Output schema expectations

Keep the registry code, party name, source URL, retrieval time, and original CSV fields.
For aggregate answers, report the retrieval date because the export is a current snapshot.

Limits and caveats

These are personal data published under the Political Parties Act. Retrieve and expose only fields necessary for the request; avoid republishing bulk member data when an aggregate suffices.
The current CSV is not a historical trend series. Do not infer join/leave history beyond the exported dates.

Read the full file on GitHub · 47 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.

8d ago First seen · 47 lines · 30 tokens per session scan A e61b50e2f66e

Subscribe to this mod's changes

political-party-membership is a skill published in the GitHub repository taivop/marketplace (17 stars, last pushed 12d ago), licensed MIT. It adds 30 tokens to every session and 554 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 2026-09-04.

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