RunDrill language marketplace

The public install index for RunDrill's natural-language courses (English, Kazakh, …). Each course ships as one plugin — a <subject>-coach skill backed by an MCP drill engine (curriculum, progress, mistake memory).

This is the languages-only sibling of the main rundrill/rundrill index (which carries the programming and professional courses). This repo holds only the catalogs; the course plugins live in their own repos under the rundrill org and are referenced by Git source. Two catalogs cover the two marketplace-based hosts (one entry per course in each):

• .claude-plugin/marketplace.json — Claude Code / Desktop, github source.
• .agents/plugins/marketplace.json — OpenAI Codex, url source.

Installing (for users)

Claude Code / Claude Desktop — via this marketplace:

/plugin marketplace add rundrill/rundrill-lang        # the org/repo of this index
/plugin install rundrill-english@rundrill-lang            # <plugin-name>@<marketplace-name>
/reload-plugins                                           # → /english-coach is live

@rundrill-lang is the marketplace name field (set in marketplace.json), not the repo name.

OpenAI Codex — via this marketplace too:

codex plugin marketplace add rundrill/rundrill-lang    # GitHub shorthand; reads .agents/plugins/marketplace.json

Then open the plugin directory, pick the RunDrill — Languages marketplace, and install the course.

Google Antigravity — no marketplace; Antigravity scans plugin dirs. Drop a course folder in:

• ~/.gemini/config/plugins/rundrill-english/ (global, all workspaces), or
• <workspace>/.agents/plugins/rundrill-english/ (workspace-scoped).

Registering a published course

A course plugin lives in its own repo (e.g. rundrill/rundrill-english). Add one entry to each catalog, pinned to a released tag (ref, and optionally a full-commit sha) so users don't pull unfinished work.

.claude-plugin/marketplace.json (Claude — github source):

{
  "name": "rundrill-english",
  "source": { "source": "github", "repo": "rundrill/rundrill-english", "ref": "v0.1.0" },
  "description": "English coach — drills, progress, and mistake memory."
}

.agents/plugins/marketplace.json (Codex — url source; always include policy + category):

{
  "name": "rundrill-english",
  "source": { "source": "url", "url": "https://github.com/rundrill/rundrill-english.git", "ref": "v0.1.0" },
  "policy": { "installation": "AVAILABLE", "authentication": "ON_INSTALL" },
  "category": "Education"
}

Naming convention

Same as the main index: lowercase kebab-case everywhere; plugin = rundrill-<subject>, skill = <subject>-coach (so the bare /english-coach works), MCP server name = rundrill-<subject>. The SKILL.md name: field, its folder name, and the slash command must all match.

Authoring a new course and the submodule layout: see the private monorepo's plugins/README.md and Plugin Packaging & Distribution.