wikimedia-commons-categories SKILL.md skillA

wikimedia-commons-categories from fuzheado/wikipedia-ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add fuzheado/wikipedia-ai-skills/wikimedia-commons-categories@git:20261009.dd43296

Pins git:20261009.dd43296 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
fuzheado/wikipedia-ai-skills
Path
.claude/skills/wikimedia-commons-categories/SKILL.md
Versions recorded
5
Latest version
git:20261009.dd43296, committed Oct 9, 2026
First version recorded
Aug 5, 2026
Size
13,729 bytes
Repository stars
27
License
MIT

Create and disambiguate Wikimedia Commons categories from Wikidata data - the occupation-from-country pattern, "by name" people categories, definite-article country phrases, pluralization, existence probing, and homonym disambiguation, distilled from the production Catapult gadget. Recurring-event year categories (<Event> <YYYY>) live in the wikiportraits-event-series skill.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

> ?? **User-Agent required:** All API calls below hit Wikimedia endpoints. Requests without a descriptive `User-Agent` are blocked with HTTP 403/429. See **[wikimedia-api-access](../wikimedia-api-access/SKILL.md)**.
> ?? **Prerequisites:** For how Commons categories work as a hierarchy, see **[wikipedia-categories](../wikipedia-categories/SKILL.md)** (its tree/DAG rules apply to Commons too). For reading Wikidata entities and claims, see **[wikidata](../wikidata/SKILL.md)**. This skill is specifically the *"build and disambiguate a Commons category from a Wikidata item"* workflow.

---

## What this skill is

Commons stores **people** in categories named `<occupation plural> from <country>`
(e.g. `Vocalists from the Netherlands`) and, when the category indexes people
alphabetically by surname, with a **`by name`** suffix
(`Vocalists from the Netherlands by name`). This skill teaches the exact
algorithm for turning a Wikidata item's claims into the right category name,
checking whether it already exists, and disambiguating homonyms - the same
production logic as the **Catapult** gadget
(`User:1Veertje/Catapult` on Wikidata, `github.com/VDK/Catapult`, by Vera de
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add fuzheado/wikipedia-ai-skills/wikimedia-commons-categories@sha256:90c4ac9249b0d829

The line at the top of this page pins the label git:20261009.dd43296, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_3kjaqolmkvqfupuo.svg)](https://markdownregistry.com/a/art_3kjaqolmkvqfupuo)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Aug 5, 2026 and Oct 9, 2026, about one every 16 days.

versioncommittedcommitsizeaudit
git:20261009.dd43296 latest2026-10-09 dd43296 13,729 BA view · diff
git:20260929.dd837b62026-09-29 dd837b6 12,901 BA view · diff
git:20260920.46996df2026-09-20 46996df 11,271 BA view · diff
git:20260810.3127d432026-08-10 3127d43 10,510 BA view · diff
git:20260805.9a9b5932026-08-05 9a9b593 9,990 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (13729 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

fuzheado/wikipedia-ai-skills · 27 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_3kjaqolmkvqfupuo
GET https://markdownregistry.com/api/v1/resolve?ref=fuzheado/wikipedia-ai-skills/wikimedia-commons-categories
GET https://markdownregistry.com/api/v1/blob/90c4ac9249b0d8297038ce3673ee48fb42eb96dbfa74a0abd45bd9345e374b80

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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