The control SSH logs in as root, so the agent (dropped to node via
runuser) inherited cwd=/root. That was harmless while the rootless
rootfs left /root node-owned, but the dropbear fix (chown /root →
root:root 0700) made /root unreadable to node — so the agent's cwd was
inaccessible, breaking Node's process.cwd(), Claude Code's shell-snapshot
machinery, and `/doctor` (which reported /root/.claude EACCES and failed
every Bash command).
Run the agent from its workdir (default /home/node) via `env --chdir`.
Not a `sh -c 'cd … && exec "$@"'` wrapper: ssh space-joins everything
after the host into one string for the guest shell, so the quoted script
+ $@ get re-split and mangled (it exec'd the $0 placeholder → exit 127).
`env --chdir=DIR …` is all simple words, so it survives the join.
Verified end-to-end: a real headless claude bottle now runs its Bash tool
and exits 0 (was EACCES/127 before).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WBMWTEtQdJ4W5UrWuLHCck
didericis
f71558aff6