Compatibility issue between Claude Code and MCP schema implementation

[meenie]

I've encountered an issue integrating this MCP implementation with Claude Code. It appears the response returned to Claude Code includes an additional property, metadata, causing schema validation to fail. Specifically, the metadata property isn’t permitted by the current TextContent schema definition.

Would it be possible to align the response structure with the official schema, or clarify if there’s an intended reason for the divergence?

Thank you!

[eliasdarruda]

I had to change pretty much everything to get it working properly for Claude Code, for reference its in my fork: https://github.com/eliasdarruda/linear-mcp-server, the code is pretty rough but it works. Until this gets a update I'm pointing at the fork build/index.js manually in the mcp function

[jaredscheib]

FYI I used Claude Code with this other Linear MCP Server just now to update issues and it worked great and is currently being maintained: https://github.com/tacticlaunch/mcp-linear