agentplugins/agent-plugins-spec ? reverse-engineered prompt

Build me a clean, simple specification site for Agent Plugins, with the current published version and the working draft both easy to read. I want the repo to clearly explain how a plugin is packaged, what a plugin manifest looks like, and how a client can discover skills and MCP servers from a plugin folder.

Please make the docs and schemas feel polished and consistent, and include a tiny example plugin that shows the smallest useful setup, with a manifest and one skill. Keep the project vendor neutral and focused on the contract, not on how any one app should present the plugin to users.

If anything is unclear, look up the latest docs online and follow the existing spec structure in the repo. I mostly want this to be a good reference that people can use to build and validate plugins without guessing.