gemini-cli - 💡(How to fix) Fix Non-atomic updates in FileKeychain and Logger [1 comments, 2 participants]

What happened?

Sensitive files like credentials and chat history are updated using fs.writeFile, which overwrites the file directly. A crash during this operation leads to data loss or corruption.

What did you expect to happen?

Updates should be atomic: write to a temporary file in the same directory and then use fs.rename to replace the original file.

Client Information

<details> <summary>Client Information</summary>

OS: linux Date: Sunday, May 10, 2026 Gemini CLI: 0.42.0-nightly

</details>

Login information

Automated audit with Gemini CLI.

Anything else we need to know?

Files: packages/core/src/services/fileKeychain.ts (Line 104), packages/core/src/core/logger.ts (Line 190). This is a classic reliability issue in file-based storage.

Severity: Medium Area: area/core