Developer releases Wardrail, an open-source CLI tool to catch API key leaks in AI-assisted code

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A developer has released Wardrail, a free open-source command-line tool designed to detect exposed API keys and secret misconfigurations in locally built projects. The tool scans both current project files and a portion of Git history to catch secrets that may have been committed and later deleted. Wardrail specifically targets common mistakes such as treating frontend environment variables like VITE_* or NEXT_PUBLIC_* as private, when they are actually bundled into browser-accessible code. Running entirely on the user's machine, it does not upload source code, and supports terminal, JSON, and SARIF output along with pre-commit and GitHub Code Scanning integration. The project is at an early stage with 17 static rules and 38 automated tests, and the developer is actively seeking feedback on missed secret formats, noisy rules, and beginner-friendliness of suggested fixes.

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