ruby-sdk

Motivation and Context The MCP spec defines an embedded resource content type, but the SDK had no corresponding class. Add that wraps a resource object and serializes it via . https://modelcontextprotocol.io/specification/2025-11-25/server/tools#embedded-resources How Has This Been Tested? Pass the newly added tests. Breaking Changes None. Types of changes [ ] Bug fix (non-breaking change which fixes an issue) [x] New feature (non-breaking change which adds functionality) [ ] Breaking change (fix or feature that would cause existing functionality to change) [ ] Documentation update Checklist [x] I have read the MCP Documentation [x] My code follows the repository's style guidelines [x] New and existing tests pass locally [x] I have added appropriate error handling [x] I have added or updated documentation as needed

Motivation and Context returned 200 with body, but the MCP spec requires 202 with empty body when a response is sent via SSE stream. This has been a requirement since Streamable HTTP was introduced in protocol version 2025-03-26. https://modelcontextprotocol.io/specification/2025-03-26/basic/transports#sending-messages-to-the-server https://modelcontextprotocol.io/specification/2025-11-25/basic/transports#sending-messages-to-the-server How Has This Been Tested? Added a repro test to verify the fix and prevent regression. Breaking Changes None. This fixes behavior that was incorrect with respect to the specification. Types of changes [x] Bug fix (non-breaking change which fixes an issue) [ ] New feature (non-breaking change which adds functionality) [ ] Breaking change (fix or feature that would cause existing functionality to change) [ ] Documentation update Checklist [x] I have read the MCP Documentation [x] My code follows the repository's style guidelines [x] New and existing tests pass locally [x] I have added appropriate error handling [x] I have added or updated documentation as needed