Agent Skill

Teach Your Agent Ritchie

so it can teach Ritchie to you

A self-contained language guide for coding agents to write, run, explain, debug and teach Ritchie.

Download the Skill

ZIP · 124 KB · 09 September 2026

What’s Inside

The package follows the open Agent Skills folder format. It contains a compact Ritchie language capsule, compiler-verified observations, teaching guidance and a small Python client for the public playground service.

It has no third-party dependencies. The client sends source code to the public Ritchie playground only when the skill’s instructions permit a compile or run.

The entire package is licensed under CC BY-NC-ND 4.0.

Install in Claude

Claude can import the downloaded ZIP directly as a skill.

  1. Download the Ritchie Skill and leave the archive zipped.
  2. In a Claude chat, open +, choose Skills → Manage skills, then open Add → Upload skill and select the downloaded ZIP.
  3. Open a new chat and invoke the Ritchie skill using /ritchie. Try: “/ritchie what’s the most exciting feature of this language?”
Claude chat attachment menu with the Skills submenu open, showing ritchie and Manage skills
Open Skills from a Claude chat.
Claude skills page Add menu with Upload skill selected
Upload the downloaded ZIP.

Ask Your Harness to Install It

Copy this prompt into your coding agent or harness. It leaves the exact installation location up to the harness while asking it to verify the package first.

Install the Ritchie skill from:
https://ritchie.dev/assets/downloads/ritchie-skill-2026-09-09-3f6.zip

Before installing it:
1. Download the archive without executing anything.
2. Verify its SHA-256 checksum is:
   3f6bf96d5a70f0f938d3270a8e32d2d10df989a25fd32a7816308f686f11ec32
3. Confirm it contains one top-level ritchie/ folder, no symlinks,
   and a SKILL.md file directly inside that folder.
4. Install that folder in this harness's user-scoped skills location,
   preserving its contents and structure.
5. Tell me where you installed it and how I can invoke it.

If this harness does not support SKILL.md-based Agent Skills, do not
guess an installation path or execute the bundled client. Explain the
closest supported way to load these instructions instead.

Verify It Yourself

The published archive has this SHA-256 checksum:

3f6bf96d5a70f0f938d3270a8e32d2d10df989a25fd32a7816308f686f11ec32

After installation, try: “Use the Ritchie skill to teach me a Ritchie concept with a runnable exercise.”