Issue while generating Commit Message in Google Antigravity IDE

Google Antigravity
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Antigravity IDE Version: 2.5.5
VSCode OSS Version: 1.107.0 (user setup)
Commit: ecfbad74d93962fc8ca485d93ab9b4*****
Date: 2026-08-13T08:37:22.547Z
Electron: 39.2.3
Chromium: 142.0.7444.175
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.19045
Language Server CL: 963923152

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Hi @engcountio ,

Thank you for sharing the screenshot and your v2.5.5 version details.

To resolve, could you please follow the below steps:

  1. Stage Only the Specific Files Before Generating (+):

    • When no files are staged, the commit generator sends all unstaged changes across the workspace in a single stream. In the Source Control panel, stage (+) only a small batch of source files (excluding large lockfiles like package-lock.json, build folders, or binary assets) and click Generate Commit Message again.

  2. Reset the Language Server HTTP/2 Stream Pool:

    • Press Ctrl + Shift + P, run Developer: Reload Window, and if you are routing through a VPN or proxy, set http.proxySupport to off (or override) in Settings (Ctrl + ,) so the HTTP/2 connection is not multiplexed through an intermediate proxy.

  3. Wait 60 Seconds Before Retrying:

    • Because NGHTTP2_ENHANCE_YOUR_CALM is a temporary HTTP/2 stream cooldown signal, waiting ~60 seconds after staging your specific files will allow the commit message generator to succeed.

Please let us know if staging specific files and reloading the window resolves the error.