For Claude

Add the free skills to Claude

Claude loads skills as small zip files. Upload one once and Claude uses it whenever you write.

1. Download a skill

Human-centered language

v1.0.0 · Oct 2026

The plain language standard for AI.

Download Human-centered skill for Claude (.zip)

Trauma-informed language

v1.0.0 · Oct 2026

For organizations whose readers may have lived through trauma.

Download Trauma-informed skill for Claude (.zip)

Human voice

v1.0.0 · Oct 2026

Takes out the habits that make writing sound machine-made.

Download Human voice skill for Claude (.zip)

2. Set it up

  1. 1

    Download the skill

    Pick a skill above and download the .zip file. Don’t unzip it.

  2. 2

    Open Customize, then Skills

    In Claude, open Customize in the left sidebar and choose Skills.

  3. 3

    Upload it

    Click Add, then Upload skill, and choose the .zip you downloaded.

  4. 4

    Turn it on

    Switch the skill on. Claude now applies it when you write about people, or you can ask for it by name.

Trauma-informed language includes human-centered language. Human voice can stack on top when you want plain, respectful copy that also drops AI vocabulary tells.

Claude can read our skills from a link in chat, but it can’t install them for you. The upload above is the step that makes it stick. On Team and Enterprise plans, an admin can add a skill for everyone. Code execution and skill behavior can vary by plan.

Prefer an agent? → Install for agents

3. Try it

Give it a real request, the kind your team writes every week. For example:

“Rewrite this paragraph so it sounds like a person wrote it: “In today’s fast-paced landscape, it’s not just about communication—it’s about connection. We leverage robust tools to delve into what matters.””

4. Check it worked

Paste the paragraph below into a new message and ask for a rewrite. If the vocabulary tells are gone (stock openers, lists of three, long dashes), the skill is working.

Without the skill

In today’s fast-paced landscape, it’s not just about communication—it’s about connection. We leverage robust tools to delve into what matters: clarity, impact, and meaningful engagement. Whether you’re drafting an update, sharing a milestone, or inviting people in, remember three things: be clear, be human, and be present.

With the skill

People can tell when a message was written for them. Say what happened, why it matters, and what you’re asking for, without the filler. One clear sentence beats three polished ones.

Use a different AI?