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qybaihe / mu

mu (μ): most of what a coding agent decides isn't code. mu hands 40 kinds of yes/no calls to a small model: fewer wasted tokens, fewer approvals on autopilot, fewer runs that stop halfway. Built on pi.

Why this job: says: coding agent; topics: coding-agent, ai-coding, agent-harness

A real run in the mu desktop app, sped up, in mu’s own repository. The message: mu “- fix the parser” fails with “Unknown option”; a task that starts with “- ” is a message, not an option; the CLI is in packages/coding-agent; find the cause, fix it, add a test, run it, then run npm run check; don’t run mu itself. The judge classifies it as a multi-step task. The model, MiMo-V2.6-Pro in Judge mode, reads the argument parser, finds that any argument starting with a dash was taken for an option and changes it so an argument like “- fix the parser” counts as a message. It adds tests, then runs them and npm run check: the judge lets each command run without asking (tool.approval), and everything passes. The Judge tab on the right lists each verdict with its decision point and latency, ending with Task finished.

What it does

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:

Get started

npm i -g mu-agent
# Node.js 22.19 or newer
mu setup
# connect a model
mu
# start a session in the current directory
Maintenance
Active
Last commit yesterday
Stars
588
+16 this week
Licence
MIT
Allows business use
Downloads for
3 systems
Mac, Windows, Linux
Latest version
v0.3.9
Released 2 days ago
Built with
TypeScript
93% of the code

Is it looked after?

Contributors
2
Last 90 days
Issues
80% closed
3 still open
Pull requests
366 merged
2 waiting
Releases
36
30+ in the last year

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More: download files, languages, topics and project record

Download files, v0.3.9

  • Mac2 files, 10 downloads
  • Windows2 files, 17 downloads
  • Linux4 files, 11 downloads

All files on GitHub (opens in new tab)

Languages

  • TypeScript 93%
  • JavaScript 3%
  • HTML 2%
  • CSS 1%

Topics

  • agent-harness
  • ai-agent
  • ai-coding
  • cli
  • coding-agent
  • context-engineering
  • desktop-app
  • developer-tools
  • electron
  • jev
  • llm
  • multi-agent

Project record

  • JobCoding agents
  • StatusListed
  • Commits8,740
  • Forks64
  • Watching0
  • Stars in 28 days+86
  • CreatedSep 22, 2026
  • First seen by usNov 7, 2026
  • CheckedNov 10, 2026

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