
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
60 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

AI decision workspace where agents debate choices and generate roadmaps, documents, and working artifacts.
@getazrivo · X
Building - an AI assistant that doesn't just chat, it ships. Plan Mode maps out multi-step builds and produces real artifacts: live web pages, documents, spreadsheets, slide decks. It can also assemble a curated team of specialists to debate decisions.

Backtest investment strategies, track portfolios, and analyze markets with AI assistance.
策引 — 全球市场技术分析工具,可以创建多个市场的模拟组合并做深度回测分析。同时正在开发 AI Agent 功能,可帮助用户使用大模型自动生成基于不同交易策略的模拟组合。

Ask one question to multiple AI models, compare answers, and watch them debate to consensus.
u/trekhleb · Reddit
I kept pasting the same question into ChatGPT, Claude, and Gemini in three tabs; so I built a Yes-Brainer — a council of AI models, that answer your question in parallel, debate to consensus, or get judged to a verdict. submitted by /u/trekhleb to r/SideProject [link] [comments]

Pick two cryptocurrencies to see what price Coin A would have at Coin B's market cap.
@BananaFlipX · X
Our crypto market cap calculator. Check it out 👇🏼

Play Yahtzee against an optimal AI to test your strategy intuition.
@afotherg · X
I vibe coded an optimal yahtzee game. See if your intuition is the right move. Repo at with acknowlegements

Compete to write the cheapest zero-knowledge circuits and verify correctness in Lean.
rot256

Practice pitching your startup to AI investor personas and receive a scored evaluation.
@gatekeepvc · X
we help startup founders get discovered by VCs through AI pitch-offs

Map founder DNA across behavioral dimensions to find compatible investors.
@enoch_fyw · X
MBTI for founders, connect with Investors the fun way!

Backtest trading strategies using historical stock market data.
@basisfinnce · X
Taking the hype out of short term stock trading using a backtest engine running off decades of data 📊 👉

Create predictions on any topic, trade with friends, and earn coins.
@FirasAtoui1 · X
Prediction Market on iMessage

Source-backed MLB market intelligence with price context and postgame auditability.
@JoeTheCode · X