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I built an open source multi

Show HN: I built an open source multi-agent harness in Go

55 AI Score
Show_hn devtools Added Apr 9, 2026

Details

Sector
devtools
Total Funding
$0
Last Round
$0

About

Hey HN. I built an AI agent harness over the past few months and I&#x27;m open sourcing it today.<p>Some context on why. I&#x27;ve been building with Claude Code daily using this harness. It orchestrates multiple AI agents as a team, with a dashboard, chat, kanban board, the works. I used it to build a full SaaS product (MyUpMonitor, <a href="https:&#x2F;&#x2F;myupmonitor.com" rel="nofollow">https:&#x2F;&#x2F;myupmonitor.com</a>) in about 24 hours of focused coding.<p>Then yesterday Anthropic announced Mythos and decided to keep it behind closed doors. Meanwhile I&#x27;m paying for Claude and I can&#x27;t access their best model. I don&#x27;t think that is nice at all...<p>So I&#x27;m open sourcing the harness with support for both Claude Code and OpenAI Codex. The whole point is that you shouldn&#x27;t be dependent on one company&#x27;s API to run your AI workflow.<p>What this harness does: - Spawns and manages multiple AI agents in parallel - Each agent gets a persona, role, and communication channels - CEO agent that can hire&#x2F;fire workers on its own - Web dashboard with chat, kanban board, and live terminal output - Supports Claude Code, OpenAI Codex, Cursor Agent, opencode, and local models - MCP server per worker for tool access - Written in Go. Two binaries. SQLite. No heavy deps.<p>Would love feedback from anyone working on multi-agent setups or just what you think in general. Thank you!

AI Score Reasoning

The project demonstrates high technical velocity and addresses a timely demand for model-agnostic AI orchestration, but it enters an extremely crowded open-source market. While the 'builder' signals are strong, the lack of a clear commercial moat and early-stage traction makes it a high-risk, high-potential-utility tool rather than a venture-scale business at this stage.

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