
ClaySeal Arena — Prompt-Injection CTF
A capture-the-flag game where you use prompt injection to make AI agents break their rules.
yuvvantalreja · HN
I Built a Capture the Flag Arena for Agents
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A capture-the-flag game where you use prompt injection to make AI agents break their rules.
yuvvantalreja · HN
I Built a Capture the Flag Arena for Agents

Simple AI chat for OpenRouter models with no login, no tracking, self-hostable.
johnfahey · HN
As someone who doesn't use any of the more "advanced" features on sites like ChatGPT or Claude (agentic mode, memory, image generation, deep research, etc), I found the bloat of these services, both in UX and in performance, to be pretty tedious. There are a million AI chat interfaces out there, but I could never find one that just did simple messaging and history in the most minimal and lightweight way possible. So I made my own. Nully is written in Go and Vanilla HTML/CSS/JS. It literally just sends messages to OpenRouter, receives the result, and stores your messages locally. It's very simple, very clean, and very lightweight (see performance graphs on the site). It has basic chat features, basic model settings, and works with just about any OpenRouter text model. It supports attachments and basic web search via the OpenRouter API. I made Nully mostly for myself, but the cost to open-source it and host it on a cheap VPS is practically nothing, so I figured I'd release it if it c

Play an arcade game created by a 9-year-old with Claude Code.
@DrJiangFunPlace · X
My 9 year old made this game with Claude Code. You are welcome to play. #gamedev #claudecode


Add voice-guided help to your website or app from documentation and product content.
@moelabs_dev · X
Skilly — gives your product a voice that points. One script tag adds in-app help that answers from your own docs and moves the user's cursor to the exact button.

Leveraging the Bittensor ecosystem, Vidaio provides scalable, affordable, and high-quality video processing solutions.
@vidaio_ · X
Ai driven, video enhancement!

Solve daily prompt-injection puzzles by socially engineering an AI vault guardian.
u/ConclusionLeft3914 · Reddit
Daily AI Puzzle Looking for some feedback on a prompt engineering daily puzzle I made. Each day has a different guard with a different code. Would love some feedback. I'm still working out what to name it and how to finalise how it looks https://ai-heist.vercel.app/ submitted by /u/ConclusionLeft3914 to r/SideProject [link] [comments]

Free developer tools organized as a map, featuring formatters, generators, and decoders.
@AntiaIuri · X
Just shipped DevErse 🚀 A curated directory for dev tools & AI utilities built to speed up your workflow. It's super early stage — check it out and let me know your thoughts! 👇 🔗 #buildinpublic #indiehackers #laravel #reactjs

Notes with code blocks, Kanban bug tracker, and snippet library with GitHub import.
@SinghApurv1711 · X
Hey! Check it out here:

Extract tables from engineering PDFs and convert them to styled Excel workbooks automatically.
@SpecParse · X
Convert Complex PDF Tables into Styled Excel Workbooks

@sridharfyi https://t.co/h6rbHXCCon
@MedDispatch_Now · X

Free online tools for image compression, PDF merging, and document handling without account creation.
u/Numerous_Western_146 · Reddit
Literally guyss u need to check this 🤯 Hey guys, I was getting really annoyed with all those "free" online tools that compress images or merge PDFs but then force you to create an account or pay a premium fee to download your file. Also, uploading sensitive documents to random servers always felt sketchy to me. So, I built a collection of 9 web tools that process everything 100% locally in your browser. No data is ever uploaded to a server, there are no signups, and it's completely free.