Adds .claude-plugin/marketplace.json exposing all 95 public skills as
installable plugins via /plugin marketplace add magnus919/agent-skills.
Metadata-only approach: each entry uses source './' + skills ['./<name>']
+ strict:false, so no per-skill plugin.json or directory restructuring is
needed. Bundle-internal helper skills are excluded; bundle entrypoints are
included.
- scripts/gen-claude-marketplace.rb: generates and validates the manifest
- CI step fails if marketplace.json drifts from the skill tree
- README: Claude Code install instructions
Closes#76
AI-assisted: yes (Jasper/Hermes Agent)