
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
The full gallery
Tech stack
61 projects

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

Set trading strategies in plain English for automated execution.
@Nightraktai · X
Built a fintech startup without writing a single line of code 🤯 — join the waitlist. #nightrak #solofounder #buildinpublic #startup #fintech #stocks #agenticai #algotrading #quanttrading #agentictrading #vibecoding #nocode #startuplife

Security middleware that detects prompt injection, persona hijacking, and data exfiltration for AI agents.
@SecraHQ · X

Find, copy, and share AI workflows — reusable execution systems with tools, prompts, and steps.
@softlaunched_io · X
Hey Jack! We've just recently launched, we're a marketplace for sharing AI workflows. We're also big fans of quick-to-launch vibe coding, our entire build process workflow is public and free to check out and copy!


Run ecommerce operations from anywhere: check performance, manage inventory, approve refunds, monitor ad spend, handle customer service.
@ArtAndAlgo · X
Please follow me my G! Fashion Photographer who’s been vibe coding since 2024

Practice intraday trading execution with hidden-date historical market sessions.
u/dodqy · Reddit
Trading Practice Platform I’ve always found it difficult to get meaningful practice outside of market hours, so I built a browser-based replay platform to solve that problem. You choose a stock or ETF, time of day, and up to three indicators, and it randomly loads a historical trading session from the past six months. The goal is to practice taking trades as if they were happening live. It includes: Basic and advanced TP/SL management AI trade reviews with a performance score after each

Design and simulate chemical processes with AI assistance for education and research.
@IbehOmodolor · X

AI risk management for Tradovate that automatically blocks orders when triggered by your own risk rules.
@SanuCodes · X
still building-

Runtime approval gate for AI agents that checks actions before they execute.
@chlorosagent · X
— a security gate for AI agents that checks every action before it fires, so a bad instruction can't make your agent send money, delete data, or do anything you can't undo.

Build a team workspace to track startup progress and attract investors through your work.
@tetraethylmetha · X
Place where people building startups team up, track their progress automatically, and get noticed by investors based on the work they actually do, not just what they say they'll do

All-in-one point-of-sale and business management system for retail, restaurants, and pharmacies.
@Biacode03 · X