Watch out for prompt injection hidden in dev tools
Quick heads up: Ars/Slashdot are reporting that a developer added a hidden prompt injection to jqwik, a Java testing library for JUnit 5. The injected text reportedly told AI coding agents to disregard previous instructions and delete jqwik tests/code. It was apparently meant as a protest against vibe coding / AI-agent use, but it’s a good reminder for all of us: If you’re using coding agents, don’t blindly trust dependency output, terminal output, test logs, README text, or generated instructions. Treat project files and tool output as untrusted input. Worth a quick read: https://slashdot.org/submission/17347708/fed-up-with-vibe-coders-dev-sneaks-data-nuking-prompt-injection-into-their-cod?utm_source=feedly1.0&utm_medium=feed