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Streamable HTTP server accepts mismatched MCP-Protocol-Version header and body protocolVersion on initialize

bugSomething isn't workingSomething isn't working

Status: Open.

#351 In modelcontextprotocol/ruby-sdk;

· cclabadmin opened on May 16, 2026

Duplicate initialize is accepted after initialization and can overwrite session state or create a new HTTP session

bugSomething isn't workingSomething isn't working

Status: Open.

#349 In modelcontextprotocol/ruby-sdk;

· cclabadmin opened on May 15, 2026

Remove stdio's implicit init and require client.connect universally

enhancementNew feature or requestNew feature or request

Status: Open.

#334 In modelcontextprotocol/ruby-sdk;

· atesgoral opened on May 2, 2026

Design differences between Tools/Prompts vs Resources

enhancementNew feature or requestNew feature or request

Status: Open.

#98 In modelcontextprotocol/ruby-sdk;

· andyw8 opened on Jul 28, 2025

Rails example

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

#44 In modelcontextprotocol/ruby-sdk;

· Jakanapes opened on Jun 4, 2025