The official documentation, always linked to its current version: core, the block editor, the major page builders, AI and MCP. Agents get the same pages through search_docs.
The MCP server on your own WordPress should do one job: act on your site, with a short list of tools you actually use. Every tool an agent loads costs context, and a long list makes it slower and more likely to pick the wrong one.
Knowledge doesn't belong there. Connect MCP for WP next to it: one server for current versions, what changed, security, docs and plugin facts. Your site acts, MCP for WP knows.