DHIS2 CHAP — Claude Code plugins

Internal Claude Code plugin marketplace for people working on the DHIS2 CHAP modeling platform.

A "marketplace" is just this GitHub repo. You add it to Claude Code once, then install any plugins you want from it. Plugins can add slash commands, skills, subagents, hooks, and MCP servers to your Claude Code.

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Prerequisites

• Claude Code installed and signed in.
• Access to GitHub (this repo is public, so no extra setup is needed).

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1. Add the marketplace (once)

Run this inside Claude Code:

/plugin marketplace add dhis2-chap/claude-plugins

Claude Code fetches the repo and registers it under the name dhis2-chap. You only need to do this once per machine.

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2. Find and install a plugin

Browse everything available, then install what you want:

/plugin

This opens the plugin manager UI where you can see the marketplace's plugins and install them interactively.

Or install directly by name, using the <plugin>@dhis2-chap form:

/plugin install hello-world@dhis2-chap

After installing, the plugin's commands and skills are available immediately. For example, the hello-world plugin adds a /hello command — try it to confirm everything works.

Install scope (optional)

By default a plugin is installed for you only (user scope). You can also share an install through a repo's checked-in settings:

/plugin install <plugin>@dhis2-chap --scope project   # shared via .claude/settings.json
/plugin install <plugin>@dhis2-chap --scope local      # this repo only, gitignored

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3. Manage installed plugins

/plugin list                                # show installed plugins
/plugin disable <plugin>@dhis2-chap         # turn off without uninstalling
/plugin enable  <plugin>@dhis2-chap         # turn back on
/plugin uninstall <plugin>@dhis2-chap       # remove completely

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4. Get updates

New plugins and new versions land in this repo over time. Refresh your local copy of the marketplace to see them:

/plugin marketplace update dhis2-chap

Then install or update plugins as usual. Installed plugins pick up new versions when the plugin's version is bumped (or, for unversioned plugins, when the git commit changes).

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Auto-suggest plugins to a whole repo (optional)

If you want everyone who opens a particular CHAP code repo in Claude Code to be prompted to enable this marketplace and a set of plugins, add this to that repo's .claude/settings.json and commit it:

{
  "extraKnownMarketplaces": {
    "dhis2-chap": {
      "source": { "source": "github", "repo": "dhis2-chap/claude-plugins" }
    }
  },
  "enabledPlugins": {
    "hello-world@dhis2-chap": true
  }
}

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Available plugins

Plugin	Description
hello-world	Example plugin — a /hello command and an example skill. Copy it as a template for new plugins.
improve-chap-model	Iteratively improve an existing CHAP model. Evaluates a model (local folder or GitHub URL) on a dataset with the chap CLI, tunes the model code and/or config, and tracks every experiment with git. Run /improve-chap-model.

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Contributing a plugin

Want to share a plugin with the team? See CONTRIBUTING.md for the repo layout and a step-by-step guide.

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Troubleshooting

• A new command/skill doesn't show up after installing. Run /plugin list to confirm it's installed and enabled. If you just published a change, run /plugin marketplace update dhis2-chap first, then reinstall.
• The marketplace name. Plugins are always referenced as <plugin>@dhis2-chap, regardless of the repo name (claude-plugins). The dhis2-chap part comes from the name field in .claude-plugin/marketplace.json.