openrct2 SKILL.md skillA

openrct2 from codeatcode/oss-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 codeatcode/oss-ai-skills/openrct2@v2.0.0

Pins v2.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
codeatcode/oss-ai-skills
Path
extend/openrct2/SKILL.md
Versions recorded
5
Latest version
v2.0.0, committed Oct 1, 2026
First version recorded
Mar 27, 2026
Size
9,328 bytes
Repository stars
24
License
GPL-3.0

Use when developing OpenRCT2 plugins in TypeScript - plugin registration and game actions, window and widget UI, event hooks, park, map, ride and entity access, network API, storage, or ES5 runtime constraints.

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

# OpenRCT2 Plugin Development

Develop plugins (scripts) for OpenRCT2 using JavaScript/TypeScript to extend the game with custom windows, game actions, event hooks, and multiplayer features.

## Overview

OpenRCT2 plugins run in Duktape (ES5 runtime). Key capabilities:

- **JavaScript/TypeScript** - ES5 compatible, use transpilers for ES6+
- **Game Actions** - Multiplayer-synchronized state mutations
- **UI Windows** - Custom windows with widgets
- **Hooks** - Subscribe to game events
- **Network API** - TCP sockets for localhost communication
- **Hot Reload** - Real-time plugin development

### Plugin Directory

Place `.js` files in the `plugin` directory:

- **Windows**: `C:\Users\YourName\Documents\OpenRCT2\plugin\`
- **Mac**: `/Users/YourName/Library/Application Support/OpenRCT2/plugin/`
- **Linux**: `$XDG_CONFIG_HOME/OpenRCT2/plugin/` or `$HOME/.config/OpenRCT2/plugin/`

Access via game: **Red toolbox button → Open custom content folder**

## Plugin Template

### Basic Plugin Structure

```javascript
function main() {
    console.log("Your plugin has started!");
    // Your plugin code here
}

registerPlugin({
    name: 'Your Plugin',
    version: '1.0',
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add codeatcode/oss-ai-skills/openrct2@sha256:ff5c682ce253dbf7

The line at the top of this page pins the label v2.0.0, 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_ewmc6x2hrzp75xix.svg)](https://markdownregistry.com/a/art_ewmc6x2hrzp75xix)

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

Versions

The registry has recorded 5 versions of this file, between Mar 27, 2026 and Oct 1, 2026, about one every 47 days.

versioncommittedcommitsizeaudit
v2.0.0 latest2026-10-01 268819e 9,328 BA view · diff
v2.0.02026-09-23 f8bf298 9,327 BA view · diff
v1.0.02026-07-08 7060214 23,028 BA view · diff
v1.0.02026-04-20 e5744c4 23,035 BA view · diff
v1.0.02026-03-27 f8d43a7 23,045 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 (9328 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

codeatcode/oss-ai-skills · 24 stars · license GPL-3.0 · pushed 2026-10-08 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_ewmc6x2hrzp75xix
GET https://markdownregistry.com/api/v1/resolve?ref=codeatcode/oss-ai-skills/openrct2
GET https://markdownregistry.com/api/v1/blob/ff5c682ce253dbf78b03e1de63d226e0c46ddd1f058820fe34f25a333a2c761b

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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