Comment by moderation

This is Claude Code specific but there are similar capabilities for Codex.

"These OS-level restrictions ensure that all child processes spawned by Claude Code’s commands inherit the same security boundaries." [0]

There is a rich deny and allow system for file access that can be used in conjunction with the sandbox [1]

0. https://code.claude.com/docs/en/sandboxing#os-level-enforcem...

1. https://code.claude.com/docs/en/settings#excluding-sensitive...