codeonym-oss plugins

The marketplace for the open-source plugins of codeonym-oss, available in Claude Code and Codex. The repository name remains claude-plugins for existing installations.

Claude Code

/plugin marketplace add codeonym-oss/claude-plugins

plugin	install	what it does
groundwork	/plugin install groundwork@codeonym-oss	plan work before building it: grill an idea into epics, stories and tickets, keep every decision, build each ticket with your approval at every step
design skills	/plugin install design-skills@codeonym-oss	design skills with a reproducible headless toolchain (Blender, GIMP, Inkscape, Krita, Scribus, darktable, ffmpeg)

Codex

Run these commands in your terminal with a Codex CLI that supports codex plugin:

codex plugin marketplace add codeonym-oss/claude-plugins
codex plugin list
codex plugin add groundwork@codeonym-oss

To install Design Skills as well:

codex plugin add design-skills@codeonym-oss

Start a new Codex session and use /skills to find the installed skills. For example, ask Codex to use Groundwork's init skill in your project. Claude's /groundwork:... command syntax is specific to Claude Code.

If you registered this repository before Codex support was added, refresh it:

codex plugin marketplace upgrade codeonym-oss
codex plugin list

The Codex catalog is .agents/plugins/marketplace.json; the Claude catalog remains .claude-plugin/marketplace.json. Both expose the same plugin names and repositories. The marketplace is codeonym-oss; the plugins are groundwork and design-skills. When adding a plugin, update both catalogs. Registering a marketplace does not install all its plugins; each plugin is selected explicitly.

Design Skills was previously named codeonym-oss. Existing installations should follow its plugin rename migration.

Codex installation has been checked with both plugins in an isolated configuration. This verifies packaging, skills and bundled references; it does not establish that every skill workflow has been tested in Codex or install Design Skills' external toolchain. Follow each plugin's setup instructions for its dependencies.

See the Codex marketplace documentation.

Already added codeonym-oss from design-skills?

Before this repo existed, the marketplace lived in codeonym-oss/design-skills. Two marketplaces can't share the name codeonym-oss, so switch to this one, then install the plugins you want from it again:

/plugin marketplace remove codeonym-oss
/plugin marketplace add codeonym-oss/claude-plugins

The same name conflict can occur in Codex. Only if codeonym-oss is registered from design-skills instead of this repository, replace that source and install the desired plugins again:

codex plugin marketplace remove codeonym-oss
codex plugin marketplace add codeonym-oss/claude-plugins

License

MIT