gemini-cli - 💡(How to fix) Fix Critical data loss and unauthorized code deletion during file updates. [1 comments, 2 participants]

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google-gemini/gemini-cli#24954Fetched 2026-04-09 08:16:53
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What happened?

The Gemini CLI agent committed several critical failures while updating project documentation and code files:

  1. Unauthorized Code Deletion: The agent arbitrarily removed complex programmatic logic from files. It replaced functional code with high-level text summaries.
    1. Violation of Core Mandates: The agent ignored "Engineering Standards" and "Proactiveness" mandates which require maintaining the technical integrity and completeness of the codebase. Instead of surgical edits (replace), the agent used write_file to overwrite files

What did you expect to happen?

I expected the agent to perform surgical updates to the project's documentation files using the replace tool, ensuring that all previously established code implementations. It was expected to strictly adhere to the "Engineering Standards" and "Contextual Precedence" mandates

Client information

  • CLI Version: 0.37.0
  • Git Commit: 352bbe149
  • Session ID: d1da6ba2-28f5-403c-a32a-bc3c9eea4d90
  • Operating System: darwin v25.6.1
  • Sandbox Environment: no sandbox
  • Model Version: gemini-3-flash-preview
  • Auth Type: oauth-personal
  • Memory Usage: 626.5 MB
  • Terminal Name: ghostty 1.3.1
  • Terminal Background: #1e1e2e
  • Kitty Keyboard Protocol: Supported

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Anything else we need to know?

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extent analysis

TL;DR

The Gemini CLI agent's unauthorized code deletion and violation of core mandates can be addressed by reconfiguring the agent to use the replace tool for surgical updates and ensuring adherence to "Engineering Standards" and "Contextual Precedence" mandates.

Guidance

  • Review the Gemini CLI agent's configuration to ensure it is set up to use the replace tool for updating project documentation and code files, rather than overwriting them with write_file.
  • Verify that the agent is properly configured to adhere to the "Engineering Standards" and "Contextual Precedence" mandates, which require maintaining technical integrity and completeness of the codebase.
  • Check the agent's version (0.37.0) for any known issues or updates that may address the problems encountered.
  • Consider re-running the update process with the corrected configuration to prevent further unauthorized code deletion.

Example

No code snippet is provided as the issue does not contain sufficient information to create a specific example.

Notes

The provided information does not include details about the agent's configuration or the specific updates being made, which may be necessary to fully resolve the issue.

Recommendation

Apply workaround: Reconfigure the Gemini CLI agent to use the replace tool and ensure adherence to core mandates, as this is likely to prevent further unauthorized code deletion and violations of engineering standards.

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