Point Real-Browser Self-Debug at a Throwaway Preview, Not Localhost or Production
Antigravity 2.0's real-browser self-debug is genuinely useful, but aim it at the wrong place and it touches production data. Here is a practical way to confine it to a per-branch throwaway preview and neutralize email, billing, and webhook side effects.
When Antigravity Skips Parts of a Long Attached PDF — and a Gate That Forces It to Cite Sources
How to handle the case where Antigravity answers confidently from a long attached PDF but quietly skips a clause. With working code: a prompt that forces citations, and a gate that verifies each cited quote actually exists in the PDF.
After Generating Several Candidates, Which One Do You Adopt? Designing Best-of-N That Arbitrates by Verification
With Gemini 3.5 Flash's speed, generating several implementations of the same task has become practical. The hard part is no longer generation but arbitration. Here is the design and TypeScript implementation of a Best-of-N arbiter that picks the winner using verifiable signals only — not majority vote, not self-reported confidence.
Putting a Verification Step After 'Done': Confirming What Your Antigravity Background Agents Actually Produced
An Antigravity 2.0 background agent reported 'Done,' yet the output was nowhere to be found. Running several sites on autopilot as a solo developer, I hit this gap more than once. Here is how I learned to check ground truth instead of the agent's self-report.
Before You Trust 'It's Fixed' — Make the Agent Confirm Your Live URL Actually Renders
The agent reported it had fixed the bug and deployed successfully, yet the production page was blank. To prevent the empty-body-with-200 trap, here is how to add a completion gate that makes Antigravity 2.0's Browser Sub-Agent open the live URL and confirm the main content selector is actually filled.
Solving the Reliability Problem in Vibe Coding — Antigravity Artifacts Verification Guide
Vibe coding is fast, but it produces code you can't fully trust. This guide shows how to use Antigravity's Artifacts feature and a simple verification loop to close the gap between 'it seems to work' and 'I know it works.'