Antigravity CLI v1.2.1
Antigravity CLI v1.2.1 was released on .
Summary
Antigravity CLI 1.2.1 makes your custom agents more flexible by letting you strip away default components when you don't need them, while also making the tool much more resilient when APIs hiccup—automatically retrying temporary failures without losing progress. Plus, we've sq...
Release Context
- This was the 44th Antigravity CLI release of 2026 tracked by Havoptic.
- It shipped 1 day after Antigravity CLI v1.2.0 (September 10, 2026).
- Antigravity CLI: ships every 1.8 days — 17 releases in the last month.
Why it matters: Antigravity now retries API failures automatically for you.
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Grok Build v1.0.32 (September 14, 2026)
- Grok Build v1.0.31 (September 13, 2026)
- Claude Code v2.1.270 (September 12, 2026)
- Claude Code v2.1.269 (September 11, 2026)
- Kiro CLI v2.21.4 (September 11, 2026)
Compare Antigravity CLI: vs Claude Code · vs OpenAI Codex CLI · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Grok Build
Release Notes
- Added support for excludeDefaultComponents: true in custom agent Markdown frontmatter, allowing custom agents to opt out of default prompt sections and built-in tools while preserving post-invocation hooks.
- Improved model API error resilience and diagnostics: transient genai.APIError failures (502, 503, 504, per-minute 429 rate limits, and mid-stream interruptions) automatically retry in-process with exponential backoff while preserving completed tool call outputs, and unrecovered 503 and 429 responses surface clear user-facing error messages.
- Improved MCP and provider tool schema validation to preserve open object schemas (such as {"type": "object"} or explicit additionalProperties: true) instead of rejecting undeclared arguments on schemas that allow them.
- Improved per-turn responsiveness and reduced memory usage when opening large conversations.
- Fixed --continue starting a brand-new conversation when launched from a subdirectory, after a crash, or while another session is open in the same workspace; it now falls back to the most recent non-empty conversation in the current workspace or its parent/child directories.
- Fixed full-screen blank flashes in inline mode when content first pushes to scrollback, at the end of a turn, or when clearing the screen with Ctrl+L.
- Fixed remote companion UIs connected to an interactive CLI session via Remote Control displaying an unauthenticated sign-in screen instead of the active session's signed-in state.
- Fixed the status line reporting the terminal sandbox as disabled when the session was launched with the --sandbox command-line flag.
- Fixed image zoom keys (Ctrl+= and Ctrl+-) and the footer zoom hint appearing in the artifact viewer when a Mermaid diagram is rendered in ASCII mode instead of as a Kitty image.
Other Recent Antigravity CLI Releases
- v1.2.5 (September 17, 2026)
- v1.2.4 (September 16, 2026)
- v1.2.3 (September 15, 2026)
- v1.1.28 (September 9, 2026)
- v1.1.27 (September 5, 2026)
All Antigravity CLI releases · All AI coding tool releases on Havoptic