Genie UI MCP Server Connection Issue

Bihaag_N — Fri, 22 May 2026 09:04:03 GMT

Hi community,

I ran into an issue while connecting a third-party MCP server to Genie's general chat UI and wanted to check if anyone else has seen this.

The connection fails immediately during the initial MCP handshake with:

`TypeError: unhashable type: 'list'`

This happens before any query is even executed.

What's interesting is that the same MCP server works fine in Genie Code. The issue only seems to happen in the general chat UI.

From what I can tell, Genie general chat may be passing the raw MCP response directly into an internal handler without normalising certain fields first. Some third-party MCP servers return list-type values in places like tool manifests or OAuth scopes, and it looks like something downstream expects hashable types instead.

Has anyone else experienced this with external MCP servers, or found a cleaner fix/configuration on the connection side?

topic Genie UI MCP Server Connection Issue in Generative AI

Genie UI MCP Server Connection Issue