No marketplace — add to your opencode.json (global ~/.config/opencode/opencode.json or project):
{ "plugin": ["things@git+https://github.com/superbereza/things-cli.git"] }Restart OpenCode. The plugin (.opencode/plugins/things.js) registers this repo's
skills/ directory — no symlinks. Adapted from obra/superpowers (MIT); verify against your OpenCode version.