Search results

Add query string to RequestInfo

enhancementRequest for a new feature that's not currently supported Request for a new feature that's not currently supported

Status: Open.

#1351 In modelcontextprotocol/typescript-sdk;

· valentinbeggi opened on Dec 30, 2025

Client-side sampling validation doesn't use CreateMessageResultWithToolsSchema when tools are present

bugSomething isn't working Something isn't working

Status: Open.

#1346 In modelcontextprotocol/typescript-sdk;

· olaservo opened on Dec 28, 2025

OAuth token exchange doesn't handle error responses returned as HTTP 200

Status: Open.

#1342 In modelcontextprotocol/typescript-sdk;

· christso opened on Dec 28, 2025

MCP TypeScript SDK UriTemplate Class ReDoS

bugSomething isn't working Something isn't working

Status: Open.

#1334 In modelcontextprotocol/typescript-sdk;

· wadesparks opened on Dec 23, 2025

Auth Failure Retry Handler <code>_hasCompletedAuthFlow</code>

bugSomething isn't working Something isn't working

Status: Open.

#1317 In modelcontextprotocol/typescript-sdk;

· lokendra-ss-18283 opened on Dec 19, 2025

Support RFC 8252 dynamic loopback port selection for native OAuth clients

authIssues and PRs related to Authentication / OAuth Issues and PRs related to Authentication / OAuth

enhancementRequest for a new feature that's not currently supported Request for a new feature that's not currently supported

needs designValid issue but needs maintainer alignment on design or approach Valid issue but needs maintainer alignment on design or approach

Status: Open.

#1316 In modelcontextprotocol/typescript-sdk;

· BestOwl opened on Dec 19, 2025

error TS2420: Class 'StreamableHTTPServerTransport' incorrectly implements interface 'Transport'.

bugSomething isn't working Something isn't working

help wantedContributions especially welcome if you have a good knowledge of the codebase and language Contributions especially welcome if you have a good knowledge of the codebase and language

P3Nice to haves, rare edge cases Nice to haves, rare edge cases

Status: Open.

#1314 In modelcontextprotocol/typescript-sdk;

· jetbuster opened on Dec 17, 2025

Tool output validation fails when outputSchema is a Zod schema other than ZodObject

bugSomething isn't working Something isn't working

needs reproneeds additional information to be able to reproduce bug needs additional information to be able to reproduce bug

P2Moderate issues affecting some users, edge cases, potentially valuable feature Moderate issues affecting some users, edge cases, potentially valuable feature

Status: Open.

#1308 In modelcontextprotocol/typescript-sdk;

· joshjg opened on Dec 16, 2025

Use standard Headers API instead of custom request context object

breaking changeWill break existing deployments when updated without changes Will break existing deployments when updated without changes

enhancementRequest for a new feature that's not currently supported Request for a new feature that's not currently supported

P2Moderate issues affecting some users, edge cases, potentially valuable feature Moderate issues affecting some users, edge cases, potentially valuable feature

ready for workEnough information for someone to start working on Enough information for someone to start working on

v2Ideas, requests and plans for v2 of the SDK which will incorporate major changes and fixes Ideas, requests and plans for v2 of the SDK which will incorporate major changes and fixes

Status: Open.

#1300 In modelcontextprotocol/typescript-sdk;

· felixweinberger opened on Dec 15, 2025

Make spec type tests catch .optional() missing args too

enhancementRequest for a new feature that's not currently supported Request for a new feature that's not currently supported

P2Moderate issues affecting some users, edge cases, potentially valuable feature Moderate issues affecting some users, edge cases, potentially valuable feature

ready for workEnough information for someone to start working on Enough information for someone to start working on

Status: Open.

#1298 In modelcontextprotocol/typescript-sdk;

· felixweinberger opened on Dec 15, 2025

Server SDK support for signaling token expiry (401) from tool handlers

authIssues and PRs related to Authentication / OAuth Issues and PRs related to Authentication / OAuth

enhancementRequest for a new feature that's not currently supported Request for a new feature that's not currently supported

P2Moderate issues affecting some users, edge cases, potentially valuable feature Moderate issues affecting some users, edge cases, potentially valuable feature

ready for workEnough information for someone to start working on Enough information for someone to start working on

Status: Open.

#1294 In modelcontextprotocol/typescript-sdk;

· domdomegg opened on Dec 12, 2025

Bug: <code>server.tool()</code> silently ignores ZodObject schemas and strips all arguments

bugSomething isn't working Something isn't working

P2Moderate issues affecting some users, edge cases, potentially valuable feature Moderate issues affecting some users, edge cases, potentially valuable feature

ready for workEnough information for someone to start working on Enough information for someone to start working on

Status: Open.

#1291 In modelcontextprotocol/typescript-sdk;

· oleduc opened on Dec 12, 2025