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

It's all my fault, guys. Uncle Sam couldn't bear the thought of me running Fable on TWO accounts so they made the call, "SHUT IT DOWN!" 😁 Seriously, though. This SUCKS. 😠 https://www.anthropic.com/news/fable-mythos-access

Anthropic just dropped Fable 5 — the public version of the same Mythos-class model the US government gets. It's live everywhere: Claude apps, Claude Code, the API, even OpenRouter and Requesty. This 5-minute walkthrough covers where to use it, what it costs, and the one catch nobody's talking about.

This is wild! Lots of interesting take-aways. I'll add some links to them in the comments. https://x.com/Fried_rice/status/2038894956459290963

https://www.youtube.com/watch?v=LqGWk25F7uw