Antigravity Feature Proposal: Automated Transcript Resilience

Google Antigravity
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Antigravity Feature Proposal: Automated Transcript Resilience

To: Google DeepMind / Antigravity Development Team Subject: Issue Report & Feature Proposal: Mitigating Conversation Loss During Unexpected OS Crashes

1. The Problem / Bug Report

During normal operation of Antigravity on a Windows environment, my system experienced an unexpected hard crash (Kernel Panic/Power Loss) caused by a hardware virtualization (SVM) conflict with a third-party application.

Upon rebooting and restarting Antigravity, the transcript.jsonl file associated with my active conversation was completely corrupted (zeroed-out with null bytes). Because the OS crashed before the disk cache could flush the active write operations to the transcript file, the entire context of my session was permanently lost. The current system lacks a built-in fallback or atomic write mechanism to protect the most recent conversation states against catastrophic OS-level interruptions.

2. The Custom Solution Developed

To prevent future data loss, my Antigravity agent and I developed a two-layered resilience mechanism:

Layer 1: Automated System-Level Backups We wrote a background PowerShell service that runs on a Windows Scheduled Task (triggering every 5 minutes). This script recursively copies the C:\Users\[User]\.gemini\antigravity\brain directory to a safe, external AI_Backups folder. It implements a rolling backup strategy, keeping only the 10 most recent states. If a crash occurs, the user can seamlessly replace the corrupted brain directory with the snapshot taken just minutes prior.

Layer 2: Git-Backed Persistent Project Memory We initialized a project_state.md file directly in the workspace repository. The agent is instructed to continually update this file with the current tech stack, completed goals, and immediate next steps. Because it is committed to Git, it survives local system crashes perfectly.

3. Proposal for Built-In Feature

I propose that Google integrates a native version of this solution into the Antigravity core architecture to protect all users out-of-the-box:

  • Implement Atomic Writes for Transcripts: Ensure transcript.jsonl is written to a temporary file and atomically renamed to prevent null-byte corruption during hard crashes.

  • Built-in Snapshotting: Antigravity should automatically maintain a rolling backup of the brain directory (e.g., transcript.backup.jsonl) every few minutes or after major execution blocks.

  • Native Project Context File: Introduce a standardized, agent-managed .antigravity_memory.md file in the root of user workspaces. This allows agents to inherently store long-term memory in the user’s version control system rather than relying strictly on the volatile local brain directory.

I believe this dual-layer approach significantly enhances developer experience and system reliability. I am sharing this solution in hopes it can be integrated into the core product to benefit the wider user base.