docs: clarify MCP content filtering for authenticated users

[mintlify]

Updates the "Content filtering and indexing" section of the Model Context Protocol page to fix inaccurate and confusing language about what the authenticated MCP server indexes.

Feedback addressed

From @andrew Tsai (with @dean), based on troubleshooting this Sardine issue and this thread:

• The term "public user groups" conflates groups of pages (public: true on a page or nav group) with groups of users (auth user groups).
• The previous wording said the authed MCP "only indexes pages in public user groups," but in practice the authed MCP also serves any pages the authenticated user has permission to access based on their user group — including private page groups they belong to.
• The partial-auth sentence was missing the user-group access detail.

Changes

Rewrote the paragraph to:

• Use the correct term "public pages and groups" (matching the linked #make-pages-public section).
• Clarify that authenticated users also see pages they have permission to access via their user groups, with a link to the user-group restriction docs.
• Split the partial-auth case into its own sentence and include the user-group access detail.

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Note

Low Risk
Documentation-only wording changes; no runtime or behavior changes, with minimal risk beyond potential confusion if the new guidance is misunderstood.

Overview
Clarifies the Content filtering and indexing section of ai/model-context-protocol.mdx to correctly describe what the MCP server makes searchable for authenticated users.

Updates the wording to state that authenticated MCP access includes public pages plus any pages permitted by the user’s auth user groups, and splits the partial-auth case into explicit unauthenticated vs authenticated search behavior with links to the relevant auth docs.

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[andrew-mintlify-cs]

@ethanpalm lmk if this is confusing and you want to chat about it in person.