`/gsd-review --agy` hung indefinitely on large prompts. agy's print mode runs the
full tool-enabled agent, and on a big, file-path-rich prompt its agentic Cascade
loops on the code_search/grep tool and never converges; the transcript fallback
only runs after agy exits, so it can't recover a run that never exits.
The agy CLI exposes no per-tool deny (that lives in the Antigravity SDK), but it
does expose --print-timeout — agy's native print-mode cap. Pass it explicitly so a
stalled run self-terminates through the tool's own mechanism; a non-zero exit
discards any partial output so the existing transcript fallback / "review failed"
stub take over. Adds a regression test.
Closes#687
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
