qybaihe/mu
mu (μ): a coding agent that thinks before it acts. A small, fast judge makes the routine calls, the big model does the work. Built on pi and AionUi.
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README & documentation
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mu Most of what a coding agent decides isn't code. It's yes/no calls, and mu hands 41 kinds of them to a small model. Built on pi. Terminal-Bench 2.1, same model, same tasks: mu passed 68.2% of attempts, pi 58.7% (+9.5 points, 95% interval +3.8 to +15.2). How it was measured npm i -g mu-agent && mu setup && mu · Node.js 22.19 or newer · or the desktop app for macOS, Windows and Linux English · 简体中文 · 繁體中文 · 日本語 · 한국어 Does this output matter? Is this command safe for the task? Is the work really done? A coding agent answers questions like these hundreds of times a session. Handing them to the main model or to fixed rules costs you in three ways: Asking the main model each of these costs tokens and its attention, and fixed rules get them wrong too often. mu asks a…
Read the full README ↗ · Preview checked 2026-11-13T09:26:19.522Z
Inside the original README — Document outline
- Quick start
- How a turn works
- Decision points
- Judges
- mude 1.0, a decision model optimized for coding
- mubench 1.0: how decision models compare
- How mu is built
- Measured
- Whole tasks: Terminal-Bench 2.1
- What reaches the model: failing test logs
- The hive
- The plain-language board
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What this repository does
mu (μ): a coding agent that thinks before it acts. A small, fast judge makes the routine calls, the big model does the work. Built on pi and AionUi.
Repository facts
- Owner
- qybaihe
- Primary language
- TypeScript
- Stars
- 319
- Forks
- 31
- Open issues + pull requests
- 0
- License
- MIT
- Archived
- No
- Default branch
- main
- Created
- 2026-09-22T11:56:05.000Z
- Last push
- 2026-09-29T08:01:24.000Z
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