Antigravity CLI v1.1.8 Adds `json` and `stream-json` Print Modes with Custom Schema Validation
Google Antigravity Changelog·medium signal
Google shipped Antigravity CLI v1.1.8 on July 28, adding structured output formats for print mode plus custom JSON schema validation and better compound-command permission handling. The stated target is headless runs in CI, eval harnesses, and scripts that need to consume agent output programmatically. This closes the last major gap with Claude Code's `-p --output-format stream-json` — every major coding CLI now has a machine-readable headless mode, which is the prerequisite for building pipelines on top of them.