Follow-up to #209 and #210. Both land a real fix (a pane that is a login shell
picks up /etc/profile and the per-user PATH entries an ssh remote command never
sees, which is what was failing agent CLIs with exit 127). Three corrections:
1. `-i -l` is no longer hardcoded onto the resolved shell. That path ultimately
comes from the passwd entry, which is user data and can name anything, and a
shell that rejects an unknown flag exits on the spot: nushell, elvish and xonsh
take neither flag, so a user with one of those in passwd would have gotten a
dead pane on arrival, which is exactly the #208 failure #209 builds on top of.
loginShellArgs() applies them only to the POSIX-family shells verified to
accept both, and a test really launches every allowlisted shell present on the
machine rather than trusting the set. csh/tcsh are excluded deliberately: tcsh
honors -l only when it is the ONLY flag.
2. `remain-on-exit on` -> `failed`, moved LAST in the tmux command chain. `on`
keeps the pane after a CLEAN exit too, so typing `exit` in a remote shell
stranded a dead pane, the session outlived it, and the next launch's `-A`
reattached to that corpse: "Pane is dead (status 0)" instead of a shell,
permanently, on the DEFAULT path. Verified against a real tmux, as was the
fix: `failed` tears the session down on status 0 and keeps the pane on 127
with the "command not found" still on screen, which is the case #210 wanted.
It is last because tmux aborts the remaining commands of a `\;` sequence once
one errors (also verified) and `failed` needs tmux >= 3.2 on the REMOTE host;
leading, a rejection there would have silently dropped status/mouse/prefix/
escape-time/window-size along with it.
3. `$SHELL` -> `"${SHELL:-/bin/sh}"`, via one shared remoteLoginShellCommand()
helper instead of the string being rebuilt in tmux-manager as well.
Also corrects the rationale both PRs carried: a tmux pane already hands the shell
a tty, so it was interactive all along ($- contains i for a bare /bin/bash in a
pane) and ~/.bashrc was always being sourced. `-l` is the flag doing the work.
End-to-end verified, not just unit-tested: the emitted remote pane command was
run through all three quoting layers under a minimal sshd-style PATH with the
CLI installed only on a login-shell PATH entry, and it resolved and launched the
CLI with its arguments intact and a space-containing remote path preserved.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
remain-on-exit (previous commit) preserved dead remote panes instead of
destroying them, which revealed the real failure: `exec claude`/`exec
opencode` ran under ssh's non-interactive, non-login remote-command
shell, which only sees sshd's minimal default PATH — not the ~/.zshrc
PATH entries where these CLIs actually live (e.g. ~/.local/bin,
~/.opencode/bin). Wrap them in `$SHELL -i -l -c '<cmd>'`, mirroring the
fix shell mode already had.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Adds Antigravity as a sixth CLI backend alongside Claude Code, shell, OpenCode,
Codex and Gemini, following the existing pluggable-resolver pattern.
- `utils/antigravity-cli-resolver.ts` resolves the CLI, mirroring the other
resolvers; `GET /api/antigravity/status` reports availability and path.
- `ANTIGRAVITY_*` joins the `ALLOWED_ENV_PREFIXES` allowlist in schemas.ts, so
env overrides stay CLI-scoped rather than blanket-forwarded.
- Session, tmux-manager, mux-interface and types carry the new mode; secrets are
injected via socket-scoped `tmux setenv`, never on the spawn command line, so
the mode requires tmux with no direct PTY fallback like the other external CLIs.
- Frontend: Run-dropdown entry, agent-type option, `ag` tab badge and toolbar
colours. `runAntigravity()` routes remote/docker cases through
`POST /api/quick-start` and skips the local status probe for them.
Tests: test/antigravity-mode.test.ts, plus run-mode-ui and system-routes coverage.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Codeman maintainer