📍 Dallas, TX ↔ St. George, UT | 🚀 Founder @ Mifune (formerly Ruska AI)

Open-sourcing Open Harness — the sandboxed agent runtime — with Mifune (a tuned Pi agent) as the agent flavor I ship inside.
Less prompt, more platform.

The open-source sandboxed agent runtime.

A Dockerized, reproducible workspace for long-running AI agents — git-native, skill-driven, built around the orchestrator/sandbox split. Pluggable agent layer: drop in Claude Code, Codex, your own — or use Mifune.

git clone https://github.com/ryaneggz/open-harness
cd open-harness && make sandbox

⭐ Star Open Harness if you're building agent infra.

A lightly customized Pi agent that ships as a first-class option inside Open Harness.

🪦 Ruska AI has been retired. What used to be the Ruska platform is now split: Open Harness is the runtime, Mifune is the agent flavor.

Pre-configured for the workflows I run daily — multi-agent orchestration, persistent state, sub-agent routing, one stack across Web, IDE, CLI, TUI, Slack, CI.

🌐 https://oh.mifune.dev
📺 Building in public on YouTube, Twitch, and LinkedIn.

• 🎼 Orchestra – Multi-agent orchestration engine with checkpoints, queues, and tool routing
• 📦 Open Harness – Open-source sandboxed agent harness — the runtime Mifune is built on

• Agents & CLIs: Claude Code CLI, Pi, Codex, MCP — LangGraph / DeepAgents when the workflow needs a graph
• Backend: FastAPI, TaskIQ, Redis, Postgres, Supabase
• Infra: Docker, AWS, Bedrock, Cloudflare, Netlify
• Models & Agents: Claude, Codex, OpenCode, Pi Agent (Mifune), DeepAgents
• Dev Ergonomics: CLIs, TUIs, streaming APIs, checkpointing, resumability

I care a lot about:

• Deterministic agent behavior
• Observability over “vibes”
• Systems that survive restarts, crashes, and humans

• 👥 Plano Prompt Engineers – 1,000+ member AI builder community
• ✍️ Writing about:
  • Sandboxed agent runtimes — Docker, devcontainers, tmux, and the boring infra agents actually need
  • The orchestrator / sandbox split — what changes when you separate the agent's brain from its workspace
  • Open-sourcing agent infra — Mifune, Open Harness, and the case for transparent platforms
  • From Claude Code demo → production system — what breaks first and how to harden it
• 🧠 Teaching devs how to stop prompting and start architecting

• Shipping Open Harness as the open-source agent runtime
• Bundling Mifune (a tuned Pi agent) as the default agent flavor inside it
• Designing IaC for agents (spin up, edit, destroy, rehydrate)
• Hardening long-running agents with queues + checkpoints
• Exploring agent → agent → agent workflows at scale
• Helping teams replace brittle SaaS workflows with AI-native systems

“Always look for two confirmations.”

• Agents should be auditable, not magical
• Shipping > theorizing
• AI is leverage, not a replacement for taste
• Build systems that work at 2am when nobody’s watching