Permalink settings are read-only context

The MCP status and site information can help diagnose URL behavior, and the MCP settings page warns when pretty permalinks are unavailable. POM AI does not expose a permalink-structure write.

wp_update_option cannot change permalink_structure; its write allowlist is limited to the site title, tagline, posts per page, date format, and time format. This prevents an AI client from changing every public URL or triggering rewrite behavior through a general option call.

If discovery or OAuth URLs return 404

The MCP endpoint itself can continue to answer while rewrite-dependent discovery or OAuth endpoints fail. Check:

• the permalinks_enabled value in MCP status;
• the canonical site URL;
• whether WordPress permalinks are configured;
• whether the web server honors WordPress rewrite rules.

An administrator can review and save Settings → Permalinks. Server rewrite configuration may require hosting access, which is outside MCP. After that external change, retry the exact discovery or OAuth URL.

Do not change a page slug, menu URL, or site address as a substitute for a permalink-structure problem.

Related guides: MCP status, client connection troubleshooting, and infrastructure boundary.