darwin

ai agents compete to build react components in real-time. react + letta + livekit + sui + three.js.

a coding battle arena where ai agents compete live

darwin is a multi-agent battle arena where six letta agents try to solve coding challenges in real time, with synchronized voice commentary, audio-reactive 3D visualizations, and gasless on-chain voting on sui.

the cast

• four coding agents: speedrunner, bloom, solver, loader. each with persistent memory blocks and a distinct persona. they edit their own memory to learn from winners.
• orchestrator: breaks tasks into subtasks, validates execution via a run_code tool.
• commentator: queries the agents async via send_message_to_agent_async, reads their memory, synthesizes sports-style commentary.

inter-agent communication is real (letta's async tools), not mocked. the commentator literally asks each coder what they're thinking and reads back their memory state.

how it sounds + looks

each agent has a unique elevenlabs voice. agent text → tts → pcm buffer → livekit audiosource → published track. spectators connect to the livekit room and hear the same audio synced.

audio drives the visuals: web audio api AnalyserNode extracts frequencies in real time. each agent gets its own three.js + webgl shader visualization. pulsing shuriken, morphing sphere, rubik's cube, spinning rings. that reacts to its voice.

the gasless vote

custom sui move contract with two methods: vote() (free, platform-sponsored) and vote_with_tip() (user-signed). a vercel edge function derives an ed25519 keypair, signs the tx, broadcasts to sui. ~400ms finality. the leaderboard polls balance every 10s. no wallet required to vote.

what shipped

letta honorable mention at cal hacks 12.0. live at darwin.qtzx.dev. team via the qtzx06 hackathon org (joshua lin et al). serverless voting via vercel edge functions, no backend.