The question a security architect asks about any AI feature is short: does this create a path to data that the permission model would otherwise refuse? It is the right question, and for a governed data platform it is the only one that really matters, because a federation layer is by definition pointed at everything valuable a company has.
SemanticFed's answer is structural rather than promissory. Authorization happens at the workspace API gateway, and every operation in the federation surface — reading a model, authoring an entity, publishing a query, executing a run, toggling a policy — carries an explicit action, resource, and scope that the gateway enforces from the composed schema. Services never validate tokens themselves; identity arrives as verified context. Because there is one enforcement point rather than one per caller type, an agent is not a new kind of client with its own rules. It is a caller with an identity, subject to the same checks.
That is why the MCP server needs no parallel permission system: it calls the same gateway with the caller's own identity, and every write is additionally scoped to the calling workspace in the service layer, so an identifier guessed from another tenant does not resolve. It is also why the natural-language and autonomous layers hold no privileged route to data — an AI-authored query is designed to be an ordinary query that hits the same policy path, such that a restricted user gets identical results whether the query was written by them or generated for them.
Two practical habits complete the picture. Treat irreversible agent operations — deleting a modelled entity, archiving a published model — as a different kind of act from reading one, with an explicit confirmation. And grant agent access the way you would a write-capable service account: deliberately, and no wider than the job needs.
Illustrative scenario — not a record of a real deployment or a customer result.
This is an authorization-architecture story, not a standalone web UI walkthrough. The guarantees are enforced by the gateway on every click and every agent call, so there is no separate "Do it yourself" web flow for it.
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