# Anthropic Skills

> The reference implementation of what a skill should look like

Category: Agent skills and instruction sets (https://aiarabicdev.com/skills)
Canonical page: https://aiarabicdev.com/skills/anthropic-skills
Tags: skills, claude, documents, reference

Anthropic publishes a set of agent skills covering document formats, spreadsheets, presentations and internal workflows. Beyond being useful, the repository is the clearest available answer to what belongs in a skill and what does not.

## Facts

- Licence: No licence file in the repository
- Cost: Free and open source
- Self hostable: yes
- Added: 2026-08-23
- Last checked: 2026-08-23

## Links

- Source: https://github.com/anthropics/skills

## The shape is the lesson

A skill is a folder with instructions and optional scripts, loaded when its description matches the task. The interesting constraint is the description: it decides whether the skill is ever found, so it is written for retrieval rather than for a human reader.

Reading several of these makes the pattern obvious. Instructions are procedural, not explanatory. They tell the model what to do in what order, and push reference material into separate files loaded only when needed.

## Using them directly

The document skills are immediately practical. Producing a real spreadsheet or a formatted document is exactly the kind of task where a model without instructions produces something almost right.

Fork rather than copy. These are written for general use, and a skill tuned to your own conventions outperforms a general one every time.

## Reach for it when

- you are writing your first skill and want a correct model
- you need documents and spreadsheets produced properly
- you want to see how progressive disclosure is meant to work

## Watch out for

- general purpose skills are always beaten by ones tuned to your conventions
- a skill is only loaded if its description matches the task, so a vague description makes it invisible
- there is no licence file in the repository, so check with the publisher before redistributing anything from it
- the format is young and still moving

---

aiarabicdev is a free directory of open source tools. No affiliate links, no sponsored placements.
New entries are announced at https://t.me/arabic_Intelligence