When an Operation is changed in Explorer and synced to MCP server, the MCP server can no longer serve requests

MCP Server
1

Seeing something a bit wonky when using explorer to manage and update MCP tools in the Apollo MCP server. running v1.6.0. When an Operation is changed in Explorer and synced to MCP server, the MCP server can no longer serve requests.

Steps to reproduce:

  1. Set up an operation in explorer to sync to MCP
  2. Start MCP server
  3. Edit the operation and save it
  4. wait for it to sync
  5. request to that tool fails
1 Like
2

Thanks for reporting the issue and sharing the detailed steps, @mjfaga! We were able to replicate the problem. A collection sync error is being treated as fatal when it shouldn’t be, which is causing the server to crash even though it was healthy and handling traffic. We’re working on a fix, and I’ll keep you updated.