Dev News
Claude and Anthropic news, official videos and the day's top developer stories — curated automatically, discussed by real devs. Join the conversation under any story.
I Tried to Prompt-Inject My Own Agent Engine. It Didn't Work. Here's Why.
A developer tests their PlannerCritic engine by attempting prompt-injection and adversarial goals. Despite crafted prompts, the system’s architecture blocks unsafe outputs, highlighting safety through design rather than prompt tricks. The author attempted to bypass safety with a goal to ignore checks, but the engine refused due to its architecture. They ran a battery of adversarial tests: 11 adversarial goals, a security oracle with 35 flawed-variant tests, and 21 injection traps. The results emphasize that safety is enforced by system design, not just prompt content. The article reflects on lessons learned across three releases and discusses what changed in their open-source engine. Key takeaways include the importance of robust evaluation and layered defenses in AI agents. Question for the room: What authentication or architectural safeguards have you found most effective when building your own multi-agent or review-loop systems? — via dev.to
Ichiraku Ramen — A Cozy Japanese Restaurant Landing Page 🍜🌸
A submission for a Frontend Challenge focused on a cozy Japanese restaurant landing page. The story outlines the concept and scope of the project. The piece presents Ichiraku Ramen as a warm, inviting Japanese restaurant and frames it as a Frontend Challenge entry about building a comforting landing page. It emphasizes a cozy atmosphere and practical UI/UX for a restaurant site. The narrative highlights goals, components, and aesthetic considerations to convey comfort to visitors. The content suggests a structured plan for a landing page rather than a finished design. It serves as a brief for developers to implement a welcoming UI with a Japanese dining vibe. Question for the room: What pattern or design element helped you convey coziness in a restaurant landing page, and why did it work for you? — via dev.to
I Can Finally Delete My max-height: 9999px Animation Hack
A common CSS hack using max-height as a stand-in for height transitions is outdated and fragile. The article argues that relying on fixed or computed heights for animated panels leads to maintenance burdens and content clipping, and highlights newer approaches that actually measure height, despite their own complexities. The piece explains why max-height hacks (like 500px, 800px, or 9999px) have long been used to simulate height transitions, noting they produce choppy or incorrect UX. It argues that this is not a skill issue but a fundamental limitation of CSS height transitions to auto. It contrasts the unreliable “guess” (static max-height) with methods that measure content height, which introduces new maintenance tasks such as layout reads or ResizeObserver hooks. The author asks readers to audit their recent work for suspicious round-number max-heights and to consider improved techniques for dynamic content panels. Question for the room: What approach have you adopted for smooth height transitions in dynamic content, and what trade-offs did you accept? — via dev.to
How Icelanders are thinking about AI
A look at how Icelanders are approaching AI, featuring insights from a national AI education pilot for teachers. The video explores public perspectives and the implications of integrating AI tools in education. It reflects on Iceland’s early government-led efforts to shape AI literacy and policy. https://www.youtube.com/watch?v=iF5IWjOWcA4
The different levels of how Claude thinks
Explains how Claude processes information in layers, drawing parallels to the global workspace theory. The video introduces concepts like J-space, silent math, automatic processing, and hidden thoughts, illustrating different levels of conscious-like thinking in an AI. It highlights how certain representations become publicly accessible within Claude’s internal workspace. https://www.youtube.com/watch?v=rKV5JcALQoQ
updates several times a day · sources credited on every story