16 Pull requests merged by 9 people

• fix!: require negotiated version when using HTTP

  #548 merged Jun 5, 2025

• fix: include previously-resolved variables in completions request

  #598 merged Jun 5, 2025

• Mark schema.json files as generated

  #645 merged Jun 5, 2025

• Fix CI for MDX files

  #624 merged Jun 5, 2025

• Rename ResourceReference to ResourceTemplateReference in draft spec

  #639 merged Jun 5, 2025

• docs: small fix to contributing doc

  #606 merged Jun 5, 2025

• update elicitation schema language

  #625 merged Jun 5, 2025

• Remove outdated note about Claude.ai MCP support

  #633 merged Jun 3, 2025

• docs: remove updates.mdx as we don't maintain it well

  #636 merged Jun 3, 2025

• docs: fix broken C# code sample for MCP Server

  #400 merged Jun 3, 2025

• Add Superjoin to client list

  #580 merged Jun 3, 2025

• docs: example code should use latest protocol version

  #626 merged Jun 2, 2025

• Update documentation to reflect server moves to servers-archived

  #623 merged Jun 2, 2025

• [ez] Fix Ruby SDK icon in sidebar navigation

  #632 merged Jun 2, 2025

• Document Resource.size in concepts/resources.mdx

  #621 merged Jun 1, 2025

• FIX: Fix broken links

  #601 merged May 30, 2025

27 Pull requests opened by 19 people

• add per-section numbering

  #602 opened May 30, 2025

• add LinkedResource to CallToolResult

  #603 opened May 30, 2025

• fix: spec nit capabilities prompts

  #605 opened May 30, 2025

• Add `Resource.uriScope` to enable direct reads

  #607 opened May 30, 2025

• Documentation: Define 1st vs 3rd party MCP servers

  #613 opened May 31, 2025

• feat: Add examples field to Tool schema for enhanced LLM guidance, discovery UX and automated testing

  #615 opened May 31, 2025

• feat: Add comprehensive tool annotations for enhanced governance and UX

  #616 opened May 31, 2025

• feature: async tool call with join for disconnected clients and progress resources

  #617 opened May 31, 2025

• docs: Add AIQL MCP client to clients list

  #620 opened Jun 1, 2025

• docs: Add RecurseChat to MCP client list

  #631 opened Jun 2, 2025

• Bump tar-fs from 3.0.8 to 3.0.9 in the npm_and_yarn group across 1 directory

  #635 opened Jun 3, 2025

• fix: improve clarity of schema

  #638 opened Jun 3, 2025

• Create web-discovery.mdx

  #640 opened Jun 3, 2025

• chore: create a section on session hijack

  #641 opened Jun 3, 2025

• docs: Updated clients.mdx - Claude Desktop supports tool discovery

  #642 opened Jun 3, 2025

• Fix typos

  #644 opened Jun 4, 2025

• Enterprise Authorization Profile for MCP

  #646 opened Jun 4, 2025

• Consolidate check scripts

  #647 opened Jun 4, 2025

• chore: add a note about client session ID handling

  #648 opened Jun 4, 2025

• Add Enhanced Tool Definition Interface (ETDI): Prevents Tool Poisoning and Rug Pull Attacks with Immutable Versioned Definitions, Cryptographic Signing, Granular Permissions, Trust Chains, and OAuth 2.0 Integration

  #649 opened Jun 4, 2025

• feature: Async support without using Resource

  #650 opened Jun 5, 2025

• feature: Async support using Resource

  #651 opened Jun 5, 2025

• remove vestigial batching language and datatypes

  #652 opened Jun 5, 2025

• docs: Added Zencoder to the list of MCP clients

  #654 opened Jun 5, 2025

• Clarify JSON Schema dialect usage for embedded schemas within MCP messages

  #655 opened Jun 5, 2025

• Add Warp to the example clients list.

  #656 opened Jun 5, 2025

• move version header doc to transports

  #658 opened Jun 6, 2025

7 Issues closed by 5 people

• Quickstart - Broken C# Code Sample for MCP Server

  #399 closed Jun 3, 2025

• unable to deploy stdio mcp-server on k8s

  #628 closed Jun 2, 2025

• MCP "Server" terminology creates dangerous user misconceptions

  #630 closed Jun 2, 2025

• Issue de prueba creado desde el servidor MCP

  #614 closed May 31, 2025

• [BUG] Protocol schema does not conform to JSON-RPC semantics

  #574 closed May 30, 2025

• Static public OAuth client support

  #573 closed May 30, 2025

• Private vs Public clients in the Authorization / OAuth 2.1 spec

  #276 closed May 30, 2025

10 Issues opened by 7 people

• Where in the server.py should I put the global “database_connection”?

  #660 opened Jun 6, 2025

• Add `meta` field to MCP tool definitions for improved tool selection

  #657 opened Jun 5, 2025

• Claude.ai sends invalid scope "claudeai"

  #653 opened Jun 5, 2025

• Proposal: Add RootsTemplate to the schema

  #637 opened Jun 3, 2025

• Missing handler for 'data' method notification - causes error in McpClientSession

  #629 opened Jun 2, 2025

• [SPEC] Spec is not explicit about how Server responds to "tools/list" message

  #627 opened Jun 2, 2025

• Proposal - Read Resource Requests with a schema in the Resource

  #612 opened May 30, 2025

• Proposal: Events - new protocol element Event - list-topics, subscribe, unsubscribe, list-events

  #611 opened May 30, 2025

• Proposal: Schema - list-schemas - new protocol element

  #610 opened May 30, 2025

• Define Specification for MCP like OpenAPI Specification (OAS) for RESTful APIs

  #600 opened May 30, 2025

36 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• feat: Add User Interaction (out-of-band interactions) as a client capability

  #475 commented on Jun 5, 2025 • 30 new comments

• Allow Prompt/Sampling Messages to contain multiple content blocks.

  #198 commented on Jun 4, 2025 • 4 new comments

• [Docs] Update server examples

  #595 commented on May 30, 2025 • 1 new comment

• feat: add optional lastModified timestamp to Annotated

  #140 commented on Jun 5, 2025 • 0 new comments

• RFC: Client / Server Content capabilities

  #223 commented on Jun 4, 2025 • 0 new comments

• Update: server.mdx

  #352 commented on Jun 3, 2025 • 0 new comments

• [feat] Introduce partial results as part of progress notifications

  #383 commented on Jun 1, 2025 • 0 new comments

• Add stateless, streaming and async tool annotations

  #489 commented on May 30, 2025 • 0 new comments

• fixed typo in java server doc

  #492 commented on May 30, 2025 • 0 new comments

• Removed URI restriction from roots.mdx

  #507 commented on Jun 3, 2025 • 0 new comments

• docs(sampling): rewrite sampling docs for practical usage

  #515 commented on Jun 3, 2025 • 0 new comments

• Enforce parity between supported message types in tool results and sampling

  #522 commented on Jun 3, 2025 • 0 new comments

• Revise sampling specification to define all valid request and response fields

  #531 commented on Jun 3, 2025 • 0 new comments

• Adding rtrvr.ai as listed MCP Client

  #538 commented on Jun 4, 2025 • 0 new comments

• fix: add status field in Resource class and Resource as a return type in CallToolResult

  #549 commented on May 31, 2025 • 0 new comments

• [BUILD] Bump node in `.nvmrc` to 20.17.0 due to unsupported engine warnings

  #576 commented on May 30, 2025 • 0 new comments

• Feat (small): Add CompleteRequest.values maximum length to jsonschema

  #588 commented on Jun 3, 2025 • 0 new comments

• Feat: Add Webhooks as a server capability

  #593 commented on Jun 4, 2025 • 0 new comments

• Simplify Authorization

  #389 commented on May 30, 2025 • 0 new comments

• Add Event Subscription and Publishing Support toMCP

  #179 commented on May 30, 2025 • 0 new comments

• No shared cross-language type models

  #358 commented on May 30, 2025 • 0 new comments

• Base64 in JSON RPC will not scale for file content

  #527 commented on May 30, 2025 • 0 new comments

• Client Features: Tools

  #594 commented on May 31, 2025 • 0 new comments

• MCP currently seems to treat the client as a single entity which introduces a confused deputy problem

  #333 commented on Jun 2, 2025 • 0 new comments

• How to identify the LLM used by the MCP client?

  #550 commented on Jun 2, 2025 • 0 new comments

• Completions request for resource URIs should includes previously-resolved variables

  #597 commented on Jun 2, 2025 • 0 new comments

• Streaming tool use results

  #117 commented on Jun 3, 2025 • 0 new comments

• Ambiguity in error handling documentation for tools

  #547 commented on Jun 3, 2025 • 0 new comments

• Discussion: Should an MCP Server Expose Its Resource List Before Authentication?

  #540 commented on Jun 3, 2025 • 0 new comments

• Specify format for tool names

  #277 commented on Jun 4, 2025 • 0 new comments

• When using HTTP, Version Negotiation is not communicated for subsequent requests without session id

  #478 commented on Jun 5, 2025 • 0 new comments

• Improve JSON Schema explanation and add reference link in "Tool definition structure" section

  #508 commented on Jun 5, 2025 • 0 new comments

• What's the official scheme for inputSchema?

  #513 commented on Jun 5, 2025 • 0 new comments

• The MCP protocol exhibits insufficient security design, which increases the risk of widespread phishing attacks.

  #544 commented on Jun 5, 2025 • 0 new comments

• At the MCP Client side to selectivelly disable some of the tools from being listed

  #278 commented on Jun 5, 2025 • 0 new comments

• Streamable HTTP is missing from Transport & Core Architecture documentation

  #459 commented on Jun 5, 2025 • 0 new comments