How to stop your coding agent from reading your .env secrets
The article discusses a method to prevent coding agents from accessing sensitive information stored in .env files. It introduces a tool called Klavex that allows developers to inject secrets at runtime without writing them to disk. This approach reduces the risk of accidental exposure of secrets while still enabling agents to access necessary credentials securely.
- ▪Klavex eliminates the need for plaintext secrets files by injecting environment variables at runtime.
- ▪The tool allows for scoped access tokens, ensuring agents can only read specific secrets.
- ▪Klavex reduces the risk of accidental leakage by removing the persistent .env file from the project.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3965514) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Alex Posted on Jun 3 How to stop your coding agent from reading your .env secrets #security #ai #cli #webdev Open Cursor, Claude Code, or any MCP-enabled agent in your project and ask it to "fix the failing test." To do that, it reads files. Lots of them. And nothing stops it from reading this one: .env Enter fullscreen mode Exit fullscreen mode It doesn't matter that .env is in your .gitignore.
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