Ostheimer Cockpit for WebMCP

1. 01Upload the ostheimer-webmcp-cockpit folder to /wp-content/plugins/ , or install it through the WordPress plugin directory.
2. 02Activate the plugin through the Plugins screen.
3. 03Open the normal WordPress dashboard or Cockpit for WebMCP in your admin menu. The dashboard box shows the live registration status and quick links.
4. 04Keep that dashboard or cockpit tab open and talk to your browser’s AI agent.

Requirements: WordPress 6.0+, PHP 7.4+, and a browser or extension that implements the experimental WebMCP API ( document.modelContext ). Chrome 149+ offers WebMCP through an origin trial or the chrome://flags/#enable-webmcp-testing flag for local testing. WebMCP is in early preview and its API may change.

Can the AI agent publish posts on its own?

No. By design the agent can only create or update drafts and content in the dedicated review status. Published or scheduled content cannot be changed or moved by an agent. Publishing is a separate, capability-protected action that a human performs in the review queue.

Which AI agents work with this?

Any compatible browser agent or extension that uses the experimental WebMCP API ( document.modelContext ). The Model Context Tool Inspector can list and manually call tools for testing. Its natural-language prompts may be processed by an external AI provider, so review the extension’s current terms before using private content.

Can the agent moderate comments?

It can triage them. list_comments shows pending, approved or spam comments, and moderate_comment approves, unapproves or marks a single one as spam. Both require the moderate_comments capability, so a subscriber or author account cannot touch the queue.

Comment listings never include the author’s email address or IP address. The agent does not need either to sort spam from real comments, and both would leave your site with the response.

Can the agent restore an older revision?

Yes, but the same review boundary applies as everywhere else: list_revisions and compare_revisions need the edit_post capability on the post the revision belongs to, and restore_revision can only act where update_post could also write — drafts and content in the pending review status. A published or scheduled post’s revisions can be listed and compared, but not restored by an agent. Restoring is itself reversible: WordPress saves the pre-restore state as a new revision first, exactly as it does when you restore a revision by hand in wp-admin.

Does it send my content to external services?

The plugin itself does not send your content to the plugin developer or another third-party service. Tool calls reach your own WordPress REST API using your logged-in session. However, the browser, AI agent, or extension you choose may send prompts, page content, tool inputs, or tool results to its provider. Review that provider’s terms and privacy policy before using private content.

Do I need an MCP server or API keys?

No separate MCP server or plugin API key is required. The tools live on the WordPress admin page and the browser mediates between the agent and that page. The browser agent itself may still require its own account or configuration.

Which browsers are supported?

Chrome 149+ exposes experimental WebMCP through an origin trial or the chrome://flags/#enable-webmcp-testing flag for local testing. Other browsers or extensions can work if they implement the current draft. WebMCP is an early preview, not a W3C Standard, and support may change. WordPress continues to work normally when WebMCP is unavailable.

Does it work with Yoast SEO / Rank Math?

Yes. SEO title, meta description and canonical URL written by the agent go directly into the active SEO plugin’s fields. Without an SEO plugin, portable custom fields are used.

What is the upload size limit for agent images?

Base64 image uploads accept PNG, JPEG, WebP and GIF up to min( wp_max_upload_size(), 10 MB ) of decoded data. The JSON request body is roughly 1.37× the image size, so your host’s post_max_size must be at least that; the error message names the exact limit when it is exceeded.

Does it work with WooCommerce or custom post types?

Posts and pages are supported out of the box. On the plugin’s settings page ( Tools → Settings ) you choose which of the two agents may work with; content of a type you switch off stays out of reach, drafts, revisions and comments included. Additional post types and capabilities can be added with the webmcp_cockpit_tools filter — for example WooCommerce product tools.

Who can use the agent tools?

Only logged-in users with the edit_posts capability (authors, editors, administrators). Media uploads additionally require upload_files , publishing requires the publish capability. Guests and subscribers get nothing.