[Bug]: The mcp__container-use__environment_file_edit tool returned silently without confirming the edit

[marcindulak]

What happened?

I'm getting this behavior - changes at some point stop being applied. Claude Code looks like looping, and when pressed to provide an explanation, says:

> you seem to be looping. what is goind on? don't apologize - explain!

● The mcp__container-use__environment_file_edit tool returned silently without confirming the edit.
This is abnormal - it should either confirm success or show an error.

Let me verify if the change was applied:

This happens usually in relation to #300 (the latter issue follows the former)

Version

container-use version
container-use version 0.4.2
commit: 89ebe7765ec067a07c51de104822056eb217c1b9
built: 2025-08-19T22:23:38Z

Logs

time=2025-10-10T19:49:40.880+02:00 level=INFO msg="[/home/user/.config/container-use/repos/github.com/someuser/somerepo] $ git branch --format %(refname:short) (DONE)" err=<nil>
time=2025-10-10T19:49:40.881+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees/exotic-chipmunk] $ git notes --ref container-use-state show"
time=2025-10-10T19:49:40.884+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees/exotic-chipmunk] $ git notes --ref container-use-state show (DONE)" err="git command failed (exit code 1): exit status 1\nOutput: error: no note found for object 266b64a864898aaa05a35e3f449d941f0f289026.\n"
time=2025-10-10T19:49:40.884+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees/intimate-mouse] $ git notes --ref container-use-state show"
time=2025-10-10T19:49:40.893+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees/intimate-mouse] $ git notes --ref container-use-state show (DONE)" err=<nil>
time=2025-10-10T19:49:40.893+02:00 level=INFO msg="[/home/user/.config/container-use/repos/github.com/someuser/somerepo] $ git rev-parse --verify intimate-mouse"
time=2025-10-10T19:49:40.896+02:00 level=INFO msg="[/home/user/.config/container-use/repos/github.com/someuser/somerepo] $ git rev-parse --verify intimate-mouse (DONE)" err=<nil>
time=2025-10-10T19:49:40.896+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees/intimate-mouse] $ git notes --ref container-use-state show"
time=2025-10-10T19:49:40.905+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees/intimate-mouse] $ git notes --ref container-use-state show (DONE)" err=<nil>
time=2025-10-10T19:49:40.906+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees] $ git notes --ref container-use-state show"
time=2025-10-10T19:49:40.908+02:00 level=INFO msg="[/home/user/.config/container-use/worktrees] $ git notes --ref container-use-state show (DONE)" err="git command failed (exit code 128): exit status 128\nOutput: fatal: not a git repository (or any of the parent directories): .git\n"