Add Kimün

[lnds]

Adds Kimün, a command-line tool for code health metrics written in Rust: a grade for the project, cyclomatic and cognitive complexity per function, duplication, code smells, and from git history hotspots, ownership, temporal coupling and the reach of a diff.

I am the author of the tool.

Tool requirements

• The tool is at least six months old. (First commit in February 2026.)
• The tool has at least 20 GitHub stars. (25)
• The tool has more than one contributor. (6)
• The description is no longer than 500 characters. (484)
• I have not changed README.md directly.

AI tags, if applicable

On the uses-llm tag: I left it out. Every metric Kimün reports is computed locally and deterministically; no model takes part in the analysis. The km ai command is separate and optional: two of its subcommands only set up a coding agent to call km (a skill and permission rules), and the third, km ai analyze, lets a model ask for those same metrics and write a narrative report from them, and needs an API key to run at all. Happy to add the tag if you read the rule differently.

The language tags are the ones Kimün measures complexity for, not the longer list it only counts lines of.

[github-actions]

Contributing criteria check

[PASS] Kimün

Source: https://github.com/lnds/kimun

Criterion	Result
Stars (min 20)	pass 25 stars
Human contributors (min 2)	pass 6 human contributors
Age (min 6 months)	pass created 247 days ago (at least 6 months)

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All tool eligibility criteria passed. Thank you for your contribution.

[mre]

Thanks