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A comprehensive knowledge base for Google Antigravity — from beginner to advanced.
Fold Your Request into Five Lines Before You Paste the Long Notes
Pasting meeting notes straight into an agent gives you blurry results. Here is a five-line shape — goal, material, scope, finished form, check — and a small script that confirms all five lines are filled in.
Undo That Rewinds Only the Conversation, and Messaging a Subagent Directly: Three Moments I Hesitated
Antigravity 2.19.1 adds undo for the conversation only, and direct messages to a subagent. Here is what the changelog says, where I draw my own lines, and how to check both safely.
Three Safety Nets to Test with a Fake agy Before Running the Antigravity CLI in a Container
Before you call the Antigravity CLI (agy) from Docker or a Cloud Run job, reproduce three failure modes with a fake agy: an installer that returns gzip, a hang on tool approval, and an exit code of 0 with nothing produced. Everything here rests on official docs and on code I ran myself.
The Image Model Shuts Down on October 29 — Find Every Call in Your Agent Setup and Cut Over with a Way Back
The Gemini API deprecations table lists a shutdown date of October 29 for the image model gemini-3.1-flash-image. Here is how I locate every call scattered across configs and code, match them to a ledger, and fix a cutover date and a fallback in advance — with scripts that run.
A report of a cache cleanup that wiped a drive: why I now route every delete through a checkpoint
After reading about a cache cleanup request that ended with a developer's drive contents gone, I reopened my own cleanup script. Here is a small Python checkpoint that narrows how far a delete can reach, plus where I draw the line on what to hand to an agent without approval.
The IDE vanished after Antigravity 2.0: four checks before you try to restore anything
After updating to Antigravity 2.0, the familiar editor, settings, and extensions were gone. Here is why the config folders split in two, how to restore them without overwriting anything, and what to watch for when running the IDE next to 2.0.
Start Your Antigravity Deny List From Your Own Shell History
Before you let an agent drive your terminal, decide the first commands for the Deny list by counting your own shell history. A short script, a three-box sorting table, and a throwaway-repo test to confirm the rules actually bite.
You Don't Need to Read Commands: Three Places to Check When an Agent Works
If strings of terminal text make the approve button feel risky, here is a way to check just three things: a way back before you start, the first word of a command, and the diff afterward.
Stopping One Sub-Agent Without Taking the Other Seven Down With It
One of eight parallel sub-agents went wrong and I wanted to stop only that one. Here is how Antigravity, Claude Code, and Gemini CLI differ in what a stop actually stops, and the per-child output layout plus merge script that keeps a halted child's partial files out of the rest.
Purging Cloudflare Didn't Bring Back the New Wallpapers: the Stale JPEGs Were Held by XPageSpeed on the Origin
An operations record from a wallpaper app: images overwritten at the same URL kept arriving stale even after a Cloudflare purge. Covers the three-way local/origin/edge probe that names the guilty layer, when prefix purge beats per-URL purge, and how to switch off Xserver's XPageSpeed in .htaccess without a 500.
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