`analyze_files` falsely returns "no errors" in some repos

[gspencergoog]

When running the dart MCP server in Gemini CLI, if I run it in the flutter repository (https://github.com/flutter/flutter), when there are analyzer errors, if I ask gemini to run the analyze_files tool, it reports no errors, whereas if it runs dart analyze using the shell, it reports the errors.

Creating an empty flutter "counter" project, if I introduce an analyzer error, then analyze_files reports the errors correctly.

I'm not sure if this is an interaction with Gemini CLI and the MCP server (sandboxing?) or if it has to do with some weird setup of the Flutter repo, but it is disconcerting that this can happen, and we should probably figure out why that is.

Dart version: Dart SDK version: 3.10.0-287.0.dev)
Gemini CLI version: 0.9.0-nightly.20251007.4f53919a

[gspencergoog]

I've tried this on both linux and macos, and prompting the agent to use different paths with the analyze_files tool, and it always reports "no errors" in the Flutter repo.