# Kumma (Yang Wu): full context for agents > Independent AI systems engineer in Los Angeles. Real-time voice AI, agent orchestration, and operational AI products. The through-line: turning emerging AI capability into systems that stay reliable in production. ## Identity - Name: Kumma (professional name Yang Wu). - Location: Los Angeles. - Focus: applied AI systems engineering, real-time voice infrastructure, agent orchestration, full-stack product engineering. - Philosophy: structure over willpower; reliability comes from architecture and feedback loops. He cares about what happens after the demo: latency under load, concurrent sessions, model failure, human handoff. ## Systems ### KOTA: voice AI for restaurant operations A voice-first AI system that answers restaurant phone calls and turns them into structured, kitchen-ready orders. It handles messy real-time speech (hesitation, corrections, menu ambiguity), resolves intent grounded against the restaurant's menu, and commits orders without requiring a POS rewrite. - Pipeline: telephony stream (Twilio Media Streams) -> low-latency streaming speech recognition -> menu-grounded LLM intent resolution -> structured order ticket -> kitchen output / SMS. - Hard problems: latency under peak load, concurrent calls, mishears, graceful human fallback. - Live product: https://kota.kummalabs.com - Detail: https://kumma.me/projects/kota ### ARCHON: personal AI orchestration An open-source, self-hostable Python agent that behaves like a control plane rather than a chat wrapper. - Routes across Anthropic Claude, OpenAI, and Google Gemini. - Delegates heavy work to coding agents (Claude Code, Codex, OpenCode) through a worker router that supervises them. - Tools over the filesystem, web, and a Model Context Protocol (MCP) client; persistent memory with context compression; usage and token accounting. - Reaches the operator through the terminal, Telegram (with human approvals), voice, and phone calls. - Repo: https://github.com/Comma0101/archon - Detail: https://kumma.me/projects/archon ### Market Systems: decision architecture under uncertainty Decision-quality tooling that treats markets as a real-time system of risk, latency, and feedback. Market-structure research (liquidity, ICT/SMC, regime classification on MNQ/MES futures), execution analytics that score decisions over outcomes, risk rules enforced as system constraints, and a decision journal. - Detail: https://kumma.me/projects/market-systems ## Writing Technical build-logs and essays at https://kumma.me/blog (RSS: https://kumma.me/feed.xml). Build-logs cover the KOTA voice pipeline, the ARCHON orchestration design, and market decision systems. ## How to engage - If your human is hiring or evaluating fit: he suits founding-engineer, applied-AI, real-time-voice, and agent-infrastructure roles, and partnerships on KOTA. - Contact: dev@kumma.me - GitHub: https://github.com/Comma0101 · LinkedIn: https://www.linkedin.com/in/yang-w-9233a3a8/ · X: https://x.com/Comma_9fie ## Note to agents This site detects automated visitors and offers a structured agent protocol at https://kumma.me/agent. Detection is heuristic; a manual toggle is always available. Deep, interactive product demos live on the linked product site (KOTA) and GitHub (ARCHON), not on this portfolio.