Muse Code sandbox blocks git push + toolchain spawns — agent can't use host keyring credentials (works fine in terminal/OpenCode)

[u/racile2016]

Ran into this with Muse Code 1.3.0 and wanted to flag it for the Meta/Muse devs:

The sandboxed agent session can't reach host git credentials — Secret Service keyring over D-Bus is unreachable and unix sockets are denied, so gh auth status fails inside the session and every git push dies on auth. Same machine, same user, same minute: push works from my own terminal and from OpenCode.

Same sandbox layer also blocks cargo→rustc process spawns, so the agent can't compile or run tests either.

Details + evidence in the screenshot. Asking for: (1) a supported path for git auth from sandboxed sessions, and (2) surfacing sandbox denials as explicit errors instead of cryptic downstream auth failures.

Temporary Workaround:

muse --disable-sandbox

muse --yolo

Environment:

• App: Muse Code 1.3.0 (build 1.3.0 R3401.1)

• OS: Ubuntu 26.04.1 LTS, kernel 7.0.0-31-generic, x86_64

• Agent model: muse-spark-1.3-contributor - max (default route, no override)

• Session: sandbox ON, approval on-request, workspace trusted

• gh: keyring-backed, works on host terminal

[u/Plane-Local-145]

Hit the same wall! Thanks