plugin-marketplace-setup
Installation
SKILL.md
Plugin & skill marketplace setup
Ship skills (portable instructions), plugins (runtime wiring), and marketplaces (catalogs) without mixing them up.
Three layers (normative)
| Layer | What it is | Install unit | Skill Steward home |
|---|---|---|---|
| Skill | SKILL.md per agentskills.io |
npx skills add owner/repo --skill name |
skills/{name}/ |
| Plugin | Open Plugin or vendor manifest + hooks/MCP/rules/commands | Per-agent (see matrix) | plugins/{id}/ (ADR 0004) |
| Marketplace | Catalog of plugins/skills | Add marketplace, then install plugin | Product repos; Skill Steward uses public Git + skills.sh |
Rule: Instructions only → skill. Event hooks or multi-file wiring → plugin (references skills by id, do not fork SKILL.md).
Skill Steward meta-plugin means: a declarative manifest, referenced skill IDs, hook/rule snippets, and validated wiring artifacts. It does not mean a host marketplace submission has happened, and it must not silently mutate Cursor/Codex/Claude configuration. Host-specific install steps remain explicit in README/docs.