agent-signals

068. The open files of agy 1.4.12 on macOS and Ubuntu

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Date
2026-10-31
Agents
Antigravity CLI
Measured on
real machine

Measured

2026-10-31, Antigravity CLI (agy) 1.4.12, on macOS 26.6.2 (arm64), one process started as agy --dangerously-skip-permissions -c in Terminal.app. The probe kit (probes/run.sh, probe agy/unix.sh) read ps and lsof.

The same day, the kit ran on Ubuntu 24.04.5 (x64). One process of agy 1.4.12 ran as agy --dangerously-skip-permissions in GNOME Terminal. It had started the day before. Measured on: real machine.

What was measured

  1. The process chain was Terminal > login > -zsh > agy, with a tty. The environment had TERM_PROGRAM=Apple_Terminal and __CFBundleIdentifier=com.apple.Terminal.
  2. The process held these files open:
    • ~/.gemini/antigravity-cli/conversations/<uuid>.db, with its -shm and -wal files.
    • ~/.gemini/antigravity-cli/presence/<uuid>.lock.
  3. These are the same paths as on Linux with agy 1.4.7 (fact 028, fact 044).
  4. The process on Ubuntu held only presence/<uuid>.lock open, and no conversation database. Its chain was gnome-terminal-server > zsh > agy.

Mechanism

The open conversation database links an agy process to its conversation on macOS too. The link is not always there: the process on Ubuntu held no database open. The presence lock is there in both cases. The presence lock is the flock lock of fact 044.

Incident

The probe printed the command line of the process in place of the folder ~/.gemini/antigravity-cli/ in its layout and log sections. A helper of probes/lib.sh changed a variable of the probe. The fix gives the helper variables their own names, and tools/test-probe-lib.sh checks it.

Screens

None.

Not measured