> Markdown version of [/magazine/594-dev-digest-171-ai-in-disguise-doomed-tech-and-system-prompts](https://www.wearedevelopers.com/magazine/594-dev-digest-171-ai-in-disguise-doomed-tech-and-system-prompts). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Dev Digest 171: AI in disguise, Doomed tech and system prompts

**By:** [Daniel Cranney](https://www.wearedevelopers.com/@daniel-cranney)

**Published:** June 9, 2025

## Inside last week’s [Dev Digest 171](https://newsletter.wearedevelopers.com/171).

https://www.youtube.com/embed/n5qQPIYNREQ

🤖 Insights from LLM system prompts  
👎 Why agents are bad pair programmers  
🔒 All vibe coded apps share a security flaw  
📅 Why are 2025/05/28 and 2025-05-28 different dates in JS?  
🧱 Pure CSS Minecraft  
🎧 Create web audio like you write CSS  
🤔 Would you offer “sign in with ChatGPT” in your app?  
💼 Computer Science students have worse job expectations than art students  
🤯 The AI company that was 700 developers in India  
🎮 Can it run Doom?

🗞️ Join over 150,000 developers already subscribed to the Dev Digest to get your weekly round-up of tech news, tips and tricks, jobs, events and more, delivered to your inbox. [Subscribe here](https://wearedevelopers.com/devdigest).



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