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A comprehensive knowledge base for Google Antigravity — from beginner to advanced.
Before Turning Undocumented Code Into a Spec, Decide the Reading Order by Fan-In
When you ask an agent to turn undocumented code into a spec, which files do you hand over first? A 36-line Python script ranks files by import count (fan-in) plus route entry points, with measurements from a 77-file Next.js project.
Turning Gut-Feeling Judgments into Rules an Agent Can Actually Follow
A small, repeatable way to turn the judgment calls that live only in your head into written rules an Antigravity agent can apply, with a quick check against past cases.
After Dropbox Moved Under CloudStorage, Check That Your node_modules Exclusion Still Works
Dropbox's help page gives different ignore commands for the macOS File Provider build. Before handing dependency installs to an agent, here is how to check that your exclusion works: a dry-run-first shell script, and what I observed when running npm ci against a flagged directory.
Workflows Retire in 20 Days — What to Decide Before You Run /migrate-workflows
Workflows retire on November 1, 2026. Before you run the migration command, sort what to keep, merge, or set aside — and rewrite the one thing the command can't carry over: your descriptions.
Figma MCP or Stitch MCP: Choosing by Whether the Screen Already Exists
When you turn a screen into code, which MCP should Antigravity talk to: Figma or Stitch? One question settles it: does the correct screen already exist? Here is the rule I use, a switching routine, and a small script for the days I can't decide.
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.
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