When developing for RISC OS it is useful to give the AI agents sufficient information to be able to drive the system. This repository contains an extract from the RISC OS Build Environment of the skills that are used there. It is intended that it be available to others to use if they wish, or to contribute to if they create new skills which are useful.

Skills are definitions of how to perform certain actions which are commonly needed by AI agents. They don't comprise full information on a topic, but provide enough guidance to aid an AI system to diagnose problems, follow procedures or perform certain tasks.

Within a project these skills are usually defined with the configuration directory for the AI coding agent. For example:

• Qwen skills are held in: .qwen/skills/
• Claude skills are held in: .claude/skills/
• Gemini skills are held in: .gemini/skills/
• Codex skills are held in: .agents/skills/

Each skill is given a simple name for the directory, and contains a file SKILL.md which describes the skill, with a short header. Other resources may also be stored in this directory to help the skill with specific tasks.

More information on building these skill files can be found at AgentSkills.io.

The following skills are provided:

• using-bbcbasic: Helps with the BASIC syntax, common usage and integration with RISC OS.
• using-makefiles: Helps with the build system's makefiles.
• using-stronghelp: Helps with the management of StrongHelp files.
• using-cmhg: Helps with the creation of CMHG files.
• using-tooltester: Helps with working with the golden test (expectation test) tool riscos-tooltester.
• writing-cmodules: Helps with the development, debugging and testing of modules in C.
• writing-pymodules: Helps with the development, debugging and testing of modules in Pyromaniac PyModules, particularly porting to and from C.
• writing-prminxml: Helps with creating documentation using PRM-in-XML.
• riscos-re: Helps with RISC OS reverse engineering.
• riscos-commands: Helps with using RISC OS commands.
• riscos-output: Helps with using RISC OS output (VDU, OS_Plot, Draw, Fonts, ColourTrans).

This repository also provide a plugin marketplace for Claude. Add the marketplace to Claude and then enable the RISC OS skills plugin.

/plugin marketplace add gerph/riscos-agent-skills
/plugin install riscos-skills@riscos-agent-skills
/reload-plugins

Auto-update can be enabled by running /plugin and navigating to Marketplaces > riscos-skills-plugin and enabling auto-update. Each time Claude starts, any updates to the plugin will be automatically installed.

Or update manually using:

/plugin marketplace update riscos-skills-plugin
/reload-plugins

This repository can also be used as a Codex plugin. The skill content is the same; Codex discovers it through the .codex-plugin/plugin.json manifest at the repository root.

To install it for your user account:

mkdir -p ~/plugins ~/.agents/plugins
ln -sfn /absolute/path/to/riscos-agent-skills ~/plugins/riscos-skills

Create or update ~/.agents/plugins/marketplace.json:

{
  "name": "local",
  "interface": {
    "displayName": "Local Plugins"
  },
  "plugins": [
    {
      "name": "riscos-skills",
      "source": {
        "source": "local",
        "path": "./plugins/riscos-skills"
      },
      "policy": {
        "installation": "AVAILABLE",
        "authentication": "ON_INSTALL"
      },
      "category": "Coding"
    }
  ]
}

If you already have a marketplace file, append the riscos-skills entry instead of replacing the whole file. Restart Codex after updating the marketplace.

This repository is compatible with Gemini CLI's Agent Skills and Extensions system.

Installing as an extension allows Gemini to automatically discover and use these skills whenever you are working on a RISC OS project.

gemini extensions install https://github.com/gerph/riscos-agent-skills

If you prefer to only install the individual skills without the full extension package:

gemini skills install https://github.com/gerph/riscos-agent-skills

Once installed, Gemini will automatically prompt to activate relevant skills (like writing-cmodules or using-bbcbasic) when it identifies a RISC OS task.

Qwen Code does not have a remote plugin installation system like Claude, Codex, or Gemini. To use these skills with Qwen Code, you need to manually copy the skill files into your local project's .qwen/skills/ directory.

1. Clone or download this repository to your local machine:

git clone https://github.com/gerph/riscos-agent-skills.git

2. Copy the skill directories you want to use into your project's .qwen/skills/ directory:

# Create the skills directory if it doesn't exist
mkdir -p .qwen/skills/

# Copy specific skills you want to use
cp -r /path/to/riscos-agent-skills/skills/using-bbcbasic .qwen/skills/
cp -r /path/to/riscos-agent-skills/skills/writing-cmodules .qwen/skills/
# Add other skills as needed

Alternatively, you can create symbolic links to the skills:

# Create symbolic links to the skills
ln -s /path/to/riscos-agent-skills/skills/using-bbcbasic .qwen/skills/
ln -s /path/to/riscos-agent-skills/skills/writing-cmodules .qwen/skills/
# Add other skills as needed

3. Restart Qwen Code or reload your project for the skills to become available.

Qwen Code will recognize and make use of the skills when you invoke them with the skill: command (e.g., skill: "using-bbcbasic").