SEP-2468: Recommend Issuer (iss) Parameter in MCP Auth Responses

Assessment

This issue has not been assessed yet.

Description

Contributor guide

Open the contributing guide

First steps

1. Read the whole issue, then the project's contributing guide.
2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
3. Fork the repository and make your change on a branch.
4. Open a pull request that references the issue number.

More from modelcontextprotocol/java-sdk

• SSE client silently truncates a data: line at U+2028/U+2029/U+0085, then fails with "Error parsing JSON-RPC message" Open
  area/transport bug P2

  Difficulty 2/5 1-3 hours Newbie friendliness 88/100

  modelcontextprotocol/java-sdk#1136 · Opened Sep 18, 2026

• Client request handlers that complete empty send no JSON-RPC response Open
  area/client bug P2

  Difficulty 2/5 1-3 hours Newbie friendliness 84/100

  modelcontextprotocol/java-sdk#1124 · 1 comment · Opened Sep 3, 2026

• ServerCapabilities.logging is added unconditionally, overriding the caller's explicit capabilities Open
  bug P2 ready for work

  Difficulty 2/5 1-3 hours Newbie friendliness 68/100

  modelcontextprotocol/java-sdk#1086 · 1 comment · Opened Aug 11, 2026

• Reject listRoots if not supported by client, without sending any request Open
  enhancement good first issue P3

  Difficulty 2/5 1-3 hours Newbie friendliness 82/100

  modelcontextprotocol/java-sdk#1067 · Opened Jul 19, 2026

• StdioClientTransport missing explicit UTF-8 charset in InputStreamReader (same issue as #295, but on client side) Open
  bug P2 ready for work

  Difficulty 2/5 1-3 hours Newbie friendliness 74/100

  modelcontextprotocol/java-sdk#898 · 1 comment · Opened Apr 2, 2026

All issues in modelcontextprotocol/java-sdk

Similar issues

• [BUG] Unified agent on Bedrock Converse with no tools is unusable: an empty `toolConfig` is emitted and Bedrock rejects the request Open
  bug untriaged

  Difficulty 2/5 1-3 hours Newbie friendliness 84/100

  opensearch-project/ml-commons#5094 · Opened Sep 22, 2026

• [Bug report] iceberg rest server load_table with refs fails precondition check "Cannot set metadata location with changes to table metadata: %s changes" for snapshots with statistics Open
  bug

  Difficulty 2/5 1-3 hours Newbie friendliness 85/100

  apache/gravitino#13452 · Opened Sep 22, 2026

• Support Test Project Creation for New Projects Open
  emitter:client:csharp feature

  Difficulty 2/5 1-3 hours Newbie friendliness 72/100

  microsoft/typespec#12027 · 1 comment · 1 reaction · Opened Sep 22, 2026

• Job worker stops polling silently when a poll throws an Error Open
  affects/8.10 affects/8.9 component/clients kind/bug likelihood/mid severity/mid

  Difficulty 2/5 1-3 hours Newbie friendliness 78/100

  camunda/camunda#63825 · Opened Sep 22, 2026

• Two open-case totals on one screen: the Programs tile says 15,858 and the nav badge says 15,868 Open
  bug frontend maui-pilot

  Difficulty 2/5 1-3 hours Newbie friendliness 72/100

  Taleef7/workwell#651 · 1 comment · Opened Sep 22, 2026

More Java issues