920 pages for files.

Authorization Model Context Protocol · in the page specification/2025-11-25/basic/authorization …well-known/oauth-protected-resource", scope="files:read" ``` MCP clients **MUST** be able to parse `WWW-Authenticate` headers and respond appropriately to `HTTP 401 Unauthori… Overview Model Context Protocol · in the page specification/2025-11-25/basic/index …Y** choose to disallow specific file types or otherwise sanitize icon files before rendering. * Validate MIME types and file contents before rendering. Treat the MIME type information as advisory. Det… Lifecycle Model Context Protocol · in the page specification/2025-11-25/basic/lifecycle …| Description | | - | - | - | | Client | `roots` | Ability to provide filesystem [roots](/specification/2025-11-25/client/roots.md) | | Client | `sampling` | Support for LLM [sampling](/specification/… Elicitation Model Context Protocol · in the page specification/2025-11-25/client/elicitation …"message": "Authorization is required to access your Example Co files." } ] } } } ``` ## Message Flow ### Form Mode Flow ```mermaid theme={null} sequenceDiagram partic… Roots Model Context Protocol · in the page specification/2025-11-25/client/roots …text Protocol (MCP) provides a standardized way for clients to expose filesystem "roots" to servers. Roots define the boundaries of where servers can operate within the filesystem, allowing them to un… Specification Model Context Protocol · in the page specification/2025-11-25/index …LLM interactions * **Roots**: Server-initiated inquiries into URI or filesystem boundaries to operate in * **Elicitation**: Server-initiated requests for additional information from users ### Additi… Resources Model Context Protocol · in the page specification/2025-11-25/server/resources …rvers to share data that provides context to language models, such as files, database schemas, or application-specific information. Each resource is uniquely identified by a [URI](https://datatracker.… Architecture Model Context Protocol · in the page specification/2026-07-28/architecture/index …H --> C3 end subgraph "Local machine" S1[Server 1<br>Files & Git] S2[Server 2<br>Database] R1[("Local<br>Resource A")] R2[("Local<br>Resource B")] C1… Authorization Model Context Protocol · in the page specification/2026-07-28/basic/authorization/index …well-known/oauth-protected-resource", scope="files:read" ``` When implementing authorization flows, MCP clients **SHOULD** follow the principle of least privilege by requesti… Overview Model Context Protocol · in the page specification/2026-07-28/basic/index …Y** choose to disallow specific file types or otherwise sanitize icon files before rendering. * Validate MIME types and file contents before rendering. Treat the MIME type information as advisory. Det… Key Changes Model Context Protocol · in the page specification/2026-07-28/changelog …ot add support for them. Suggested migrations: pass directories or files via tool parameters, resource URIs, or server configuration instead of Roots; integrate directly with LLM provider APIs… Roots Model Context Protocol · in the page specification/2026-07-28/client/roots …isting implementations **SHOULD** migrate to passing directories > or files via tool parameters, resource URIs, or server configuration. See the > [deprecated features registry](/specification/2026-07… Deprecated Features Model Context Protocol · in the page specification/2026-07-28/deprecated …/modelcontextprotocol/pull/2577) | `2026-07-28` | Pass directories or files via tool parameters, resource URIs, or server configuration | First revision released on or after 2027-07-28 | | [Sampling](… Resources Model Context Protocol · in the page specification/2026-07-28/server/resources …rvers to share data that provides context to language models, such as files, database schemas, or application-specific information. Each resource is uniquely identified by a [URI](https://datatracker.… Architecture Model Context Protocol · in the page specification/draft/architecture/index …H --> C3 end subgraph "Local machine" S1[Server 1<br>Files & Git] S2[Server 2<br>Database] R1[("Local<br>Resource A")] R2[("Local<br>Resource B")] C1… Authorization Model Context Protocol · in the page specification/draft/basic/authorization/index …well-known/oauth-protected-resource", scope="files:read" ``` When implementing authorization flows, MCP clients **SHOULD** follow the principle of least privilege by requesti… Overview Model Context Protocol · in the page specification/draft/basic/index …Y** choose to disallow specific file types or otherwise sanitize icon files before rendering. * Validate MIME types and file contents before rendering. Treat the MIME type information as advisory. Det… Roots Model Context Protocol · in the page specification/draft/client/roots …isting implementations **SHOULD** migrate to passing directories > or files via tool parameters, resource URIs, or server configuration. See the > [deprecated features registry](/specification/draft/d… Deprecated Features Model Context Protocol · in the page specification/draft/deprecated …/modelcontextprotocol/pull/2577) | `2026-07-28` | Pass directories or files via tool parameters, resource URIs, or server configuration | First revision released on or after 2027-07-28 | | [Sampling](… Resources Model Context Protocol · in the page specification/draft/server/resources …rvers to share data that provides context to language models, such as files, database schemas, or application-specific information. Each resource is uniquely identified by a [URI](https://datatracker.…