Supabase MCP fails with ReferenceError when ask to list edge functions

[amitchavan90]

Bug report

Describe the bug

A simple prompt in windsurf/cursor to list all my supbase edge functions gives error as follows:

{
  "error": {
    "name": "ReferenceError",
    "message": "File is not defined"
  }
}

To Reproduce

Steps to reproduce the behavior, please provide code snippets or a repository:

Prompt in windsur/cursor:

list edge functions from supabase server

Expected behavior

Supabase MCP should have return all the edge functions from my project

Screenshots

System information

• OS: macOS 15.5
• Version of supabase-js: 2.48.1
• Version of Node.js: 18.18.0

[gregnr]

@amitchavan90 thanks for reporting. To help debug this can you share which edge functions actually do exist on your project (you can check in the dashboard) and anything about them that might give some clues (e.g. are any of them very large?).

[amitchavan90]

@gregnr There are a total of 9 edge functions in this Supabase project. All of them are regular functions—none particularly large, and average in size. For context, listing tables works perfectly on the same project using the same MCP server.