The Claude sidecar execs /usr/local/bin/claude (claude-manager.ts), but the
Anthropic installer only puts the CLI in ~/.local/bin — so on a fresh host that
path doesn't exist and claude chat fails with
"ENOENT … posix_spawn '/usr/local/bin/claude'". Symlink ~/.local/bin/claude →
/usr/local/bin/claude after install (idempotent; tracks Claude's self-updates).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>