Shared caes-cru agent skills packaged as native Claude Code and Codex plugins.

Claude Code from a terminal:

claude plugin marketplace add ucdavis-caes/caes-skills
claude plugin install caes-skills@caes-skills

Claude Code from inside a session:

/plugin marketplace add ucdavis-caes/caes-skills
/plugin install caes-skills@caes-skills

Codex from a terminal:

codex plugin marketplace add ucdavis-caes/caes-skills

Codex accepts GitHub repos, HTTPS/SSH Git URLs, and local marketplace root directories as marketplace sources. The current Codex CLI registers marketplaces with codex plugin marketplace add; install or enable the caes-skills plugin from Codex's plugin UI after the marketplace is added.

.agents/plugins/marketplace.json
.claude-plugin/marketplace.json
plugins/caes-skills/
  .claude-plugin/plugin.json
  .codex-plugin/plugin.json
  skills/
    devar/SKILL.md
    pixelify/SKILL.md
    pr-workflow/SKILL.md

1. Create plugins/caes-skills/skills/<name>/SKILL.md:

   ---
   name: your-skill-name
   description: One-line description of when to use this
   ---
   
   # Your Skill Title
   
   ...steps, rules, examples...

2. Commit and push

3. Bump the plugin version in plugins/caes-skills/.claude-plugin/plugin.json, .claude-plugin/marketplace.json, and plugins/caes-skills/.codex-plugin/plugin.json when you want teammates to receive it as a release

Skills use the same frontmatter format as Claude Code and Codex plugin skills:

• name: kebab-case identifier matching the directory name
• description: shown to the AI to decide when to load this skill
• Body: plain markdown — steps, tables, checklists, examples