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Run the Antigravity (Gemini) CLI agent harness via the agy binary. Includes interactive session control and exit handling.
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| name | agy-harness |
| description | Run the Antigravity (Gemini) CLI agent harness via the agy binary. Includes interactive session control and exit handling. |
| author | Tim Sonner |
| license | MIT |
Use this when you need to offload work to the Antigravity CLI agent harness (agy). It is a TUI and requires a PTY. It can be driven from a terminal session with a background PTY and scripted input.
agy binary is installed and on PATH./help opens an in-app command list UI; Esc exits the picker back to prompt.? lists slash commands.Esc Esc clears the prompt box (when not streaming).! to run a terminal command directly.@ triggers path suggestions./artifact (or Ctrl+R in the prompt) to open the Artifact Picker panel.references/cli-overview-notes.md (arrow keys, h/l, y/n, Shift+A/Shift+R, Enter, Esc, etc.)./config or /settings opens the settings overlay; config file lives at ~/.gemini/antigravity-cli/settings.json.agy -c or agy --conversation=...).Use this subsection when you want to delegate a task to agy as a sub-agent in a harness-style workflow.
terminal(command="agy", background=true, pty=true)
process(action="poll").process(action="submit", session_id=ID, data="/help")
process(action="wait", session_id=ID, timeout=10)
process(action="write", session_id=ID, data="\x1b")
process(action="write", session_id=ID, data="\x04")
process(action="write", session_id=ID, data="\x04")
process(action="wait", session_id=ID, timeout=10)
Pitfalls:
/exit may open a palette; use Ctrl+D twice.opencode run '<prompt>') to get deterministic output.Use a background PTY so you can send commands programmatically:
terminal(command="agy", background=true, pty=true)
# save session_id
process(action="submit", session_id="<id>", data="/help")
# if the help picker opens, send Esc to close it
process(action="write", session_id="<id>", data="\x1b")
/artifact).Artifacts let you review plans, diffs, diagrams, and visual assets before changes are applied.
Open the Picker: /artifact or Ctrl+R (prompt box). A status bar hint appears when artifacts exist (/artifact to review).
Artifact Picker (checklist overlay) keybindings:
Artifact Detail Viewer: full-screen review with inline comments and syntax highlighting (and diagram scaling for visuals).
AGY scopes conversation history to the current working directory to prevent context bleed.
Resume via picker:
/resume → Conversation Picker overlayImport from Antigravity 2.0:
/resume → Tab to Antigravity → Enter to selectQuick resume (CLI flags):
agy --continue (most recent session in current workspace)agy --conversation <uuid> (resume specific session)Fork a conversation:
/fork (alias: /branch) clones the current thread into a new session/resume to return to the original branch/fork clones conversation history, not your git checkout — use git branches for file isolationAGY expects Ctrl+D twice:
process(action="write", session_id="<id>", data="\x04")
process(action="write", session_id="<id>", data="\x04")
If still stuck, use process(action="kill", session_id="<id>") as a last resort.
terminal(command="agy", background=true, pty=true)
# session_id = ...
process(action="submit", session_id="<id>", data="/help")
process(action="write", session_id="<id>", data="\x1b")
process(action="write", session_id="<id>", data="\x04")
process(action="write", session_id="<id>", data="\x04")
/help appears to open a searchable list and you get "No matches", press Esc to return to the prompt./exit, use Ctrl+D twice.Ctrl+C (\x03) or kill the process.opencode run for the requested plan/commands.process(action="wait", session_id="<id>") returns status: exited and exit_code: 0.Resume: agy -c or agy --conversation=<id>.