Anurag Pant

Add stateless, streaming and async tool annotations

2

## Motivation and Context This change adds 3 new tool annotations: stateless, streaming and asynchronous, that would be useful to convey the impact and nature of the tools to the...

## Motivation and Context This is draft PR for the changes discussed in specification discussion [#523](https://github.com/modelcontextprotocol/modelcontextprotocol/discussions/523). ## How Has This Been Tested? Tested by setting up a webhook, client and...

Feat: Add Webhooks as a server capability

1

Add support for transmitting call tool responses to webhooks. Routing the responses to the webhook will be the responsibility of the transport layer, however, this specification change will standardize how...

SEP-1309: Add spec and SDK versioning guidelines

7

## Motivation and Context This PR adds the specification and SDK versioning guidelines introduced in the accepted #1309 to the specification documentation. ## How Has This Been Tested? Tested locally...

SEP-1400: Semantic Versioning for MCP Specification

1

Preamble Title: Semantic Versioning for MCP Specification Authors: Anurag Pant, Surbhi Bansal Status: Draft Type: Standards Track Created: 08/28/2025 Abstract Specification versioning is a critical aspect of API and service...