Search results

mcp.AddTool crashes the server with SIGSEGV when input/output struct tags trigger a nil schema from jsonschema-go — missing nil-guard in setSchema

Status: Open.

#916 In modelcontextprotocol/go-sdk;

· fstienhans-lg opened on Apr 30, 2026

Implement SEP-2260 Require Server requests to be associated with a Client request

Status: Open.

Task

#914 In modelcontextprotocol/go-sdk;

· guglielmo-san opened on Apr 29, 2026

·  

2026-06-30

Remove support for batching on streamable connection

Status: Open.

Task

#911 In modelcontextprotocol/go-sdk;

· guglielmo-san opened on Apr 27, 2026

Implement SEP-2243 HTTP Standardization

Status: Open.

Task

#905 In modelcontextprotocol/go-sdk;

· guglielmo-san opened on Apr 23, 2026

·  

2026-06-30

Proposal: Client API support for saving and restoring OAuth2 sessions

needs investigationStatus unclear, requires more work and discussionStatus unclear, requires more work and discussion

Status: Open.

Enhancement

#901 In modelcontextprotocol/go-sdk;

· smlx opened on Apr 21, 2026

Allow configuring additionalProperties on generated tool schemas

blockedBlocked on external dependencyBlocked on external dependency

Status: Open.

Enhancement

#892 In modelcontextprotocol/go-sdk;

· bokelley opened on Apr 10, 2026

Support hooking token refresh

needs community feedbackMore input from users needed to inform a decisionMore input from users needed to inform a decision

needs confirmationUnclear if still relevantUnclear if still relevant

Status: Open.

Enhancement

#881 In modelcontextprotocol/go-sdk;

· smlx opened on Apr 6, 2026

Potential race condition in (*mcp.ClientSession).Close()

needs investigationStatus unclear, requires more work and discussionStatus unclear, requires more work and discussion

P2Moderate issues, valuable feature requestsModerate issues, valuable feature requests

Status: Open.

Bug

#855 In modelcontextprotocol/go-sdk;

· madelinekalil opened on Mar 24, 2026

Support Schema Cycles

blockedBlocked on external dependencyBlocked on external dependency

Status: Open.

Enhancement

#749 In modelcontextprotocol/go-sdk;

· RPGillespie6 opened on Jan 12, 2026

Expose generic SendNotification on ServerSession for custom protocol extensions

needs investigationStatus unclear, requires more work and discussionStatus unclear, requires more work and discussion

Status: Open.

Enhancement

#745 In modelcontextprotocol/go-sdk;

· vaijab opened on Jan 6, 2026

Proposal: Strong Typing for CallTool

needs community feedbackMore input from users needed to inform a decisionMore input from users needed to inform a decision

Status: Open.

Enhancement

#735 In modelcontextprotocol/go-sdk;

· fstienhans-lg opened on Dec 24, 2025

Add examples to modelcontextprotocol.io

externalThis tracks a contribution to a different repositoryThis tracks a contribution to a different repository

help wantedContributions welcome from those familiar with codebase. Comment first to say you're working on itContributions welcome from those familiar with codebase. Comment first to say you're working on it

ready for workHas enough information to startHas enough information to start

Status: Open.

Enhancement

#720 In modelcontextprotocol/go-sdk;

· findleyr opened on Dec 12, 2025