# Claude Skills: Customize AI for your workflows Anthropic

<https://www.anthropic.com/news/skills>

- Host: [anthropic.com](https://links.thingelstad.xyz/hosts/anthropic.com/)
- Saved: October 23, 2025 (2025-10-23T23:54:04Z)
- Record: https://links.thingelstad.xyz/links/90bc4cf0213d/
- JSON: https://links.thingelstad.xyz/links/90bc4cf0213d.json

## What Jamie wrote

These new "skills" for Claude create a whole new way to extend the capabilities of an LLM.

> Skills are:
> 
> - **Composable**: Skills stack together. Claude automatically identifies which skills are needed and coordinates their use.
> - **Portable**: Skills use the same format everywhere. Build once, use across Claude apps, Claude Code, and API.
> - **Efficient**: Only loads what's needed, when it's needed.
> - **Powerful**: Skills can include executable code for tasks where traditional programming is more reliable than token generation.
> 
> Think of Skills as custom onboarding materials that let you package expertise, making Claude a specialist on what matters most to you.

First with MCP, and now with Skills, we can create solutions that mix the AI non-deterministic solutions with the traditional software solutions. Simon Willison says they are [are awesome, maybe a bigger deal than MCP](https://simonwillison.net/2025/Oct/16/claude-skills/) which is saying a lot.

## Facts

- Kind: [Page](https://links.thingelstad.xyz/kinds/page/)

## Appears in

- [WT331: Weekly Thing 331 / RFC, Security, Tokens](https://weekly.thingelstad.com/archive/331/), Notable

## Same host

- [Customize Claude Code with plugins Anthropic](https://links.thingelstad.xyz/links/98d99aa751fb/) (anthropic.com, October 16, 2025)
- [A small number of samples can poison LLMs of any size Anthropic](https://links.thingelstad.xyz/links/65bde153ed6b/) (anthropic.com, October 16, 2025)
- [Code execution with MCP: building more efficient AI agents Anthropic](https://links.thingelstad.xyz/links/31348971d5a0/) (anthropic.com, November 11, 2025)
- [Introducing advanced tool use on the Claude Developer Platform Anthropic](https://links.thingelstad.xyz/links/a955d80dfb69/) (anthropic.com, November 26, 2025)
- [Effective harnesses for long-running agents Anthropic](https://links.thingelstad.xyz/links/c91153d296ea/) (anthropic.com, December 1, 2025)

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## Elsewhere

- Wayback Machine: https://web.archive.org/web/*/https://www.anthropic.com/news/skills