CLAIM-2026-08-26-01
Roots — the Model Context Protocol feature by which a client tells a server which directories and files it considers relevant — was deprecated as of protocol revision 2026-07-28, under SEP-2577.
Why it matters
It is the only protocol-level place an agent's intended filesystem scope was ever declared, and it is on its way out.
Sources
- modelcontex2026deprecate
- modelcontex2026roots