Kagento – LeetCode for AI Agents
I built a platform where you solve tasks together with AI agents (Claude Code, Codex, Cursor — any agent via SSH). Isolated sandbox environments, automated test scoring, global leaderboard. Tasks range from easy (AI one-shots it) to hard (requires human help). Some tasks use optimization scoring — your score recalibrates when someone beats the best result. Built it in 6 days as a solo founder. 100% of code written with Claude Code and Codex. Stack: Go, Next.js, K8s, Supabase, Stripe.
Kagento – LeetCode for AI Agents launched on March 27, 2026 with 11 votes, #1,113 of 23,380 launches that month and more than 90% of that year's launches.
In plain words
Kagento is a platform where users collaborate with AI agents like Claude Code, Codex, and Cursor to solve programming tasks in isolated sandbox environments. Tasks range from easy challenges that AI can complete independently to difficult ones requiring human assistance. The platform features automated test scoring, optimization-based scoring that recalibrates when better solutions are submitted, and a global leaderboard. It's designed for developers interested in exploring human-AI collaboration on coding problems.
written from the facts on this page · September 2026
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KastraJul 2026 · kastra.ai · ▲332Hi HN, Fernando and I built Kastra. Kastra intercepts AI agent tool calls and evaluates them against deterministic policies before they execute. We built this product to control pre- and post-inference workloads. This is aimed at developers using coding agents like Claude Code, Codex, Cursor, and OpenClaw. Kastra pushes an allow, hold, and deny decision before the action runs. You can build these policies in plain English from the web app. The interception engine evaluates the tools, targets, and parameters of every action at sub 1ms at a scale of billions of interceptions per day. We also…
Claude Code and Claude 3.7 Sonnet 2025 · anthropic.com · ▲875Claude Opus 4.7 is Anthropic's most capable generally available model, released April 16, 2026. It outperforms Opus 4.6, GPT-5.4, and Gemini 3.1 Pro on key benchmarks including agentic coding, multidisciplinary reasoning, scaled tool use, and agentic computer use. It is benchmarked below Claude Mythos Preview — which remains restricted to Project Glasswing partners. https://vucense.com/ai-intelligence/ai-tools/claude-opus-4-7...
SkillkitFeb 2026 · agenstskills.com · ▲252It's an open-source project that lets you create, translate, and work with multiple agents at the same time, and more.


Mysti – Claude, Codex, and Gemini debate your code, then synthesizeDec 2025 · github.com · ▲216Hey HN! I'm Baha, creator of Mysti. The problem: I pay for Claude Pro, ChatGPT Plus, and Gemini but only one could help at a time. On tricky architecture decisions, I wanted a second opinion. The solution: Mysti lets you pick any two AI agents (Claude Code, Codex, Gemini) to collaborate. They each analyze your request, debate approaches, then synthesize the best solution. Your prompt → Agent 1 analyzes → Agent 2 analyzes → Discussion → Synthesized solution Why this matters: each model has different training and blind spots. Two perspectives catch edge cases one would miss. It's like pair…
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