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Card 050 of 9762026-09-14 issue

Observed arrival · 2026-09-14

ArchUnit: Architecture Tests for Nine Languages

archunit.net Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

An open-source family of architecture-testing libraries that turns dependency rules, boundaries, cycles, metrics, and design decisions into ordinary tests.

Landing page captured for the 2026-09-14 issue.

Field notes

The project uses a shared rule model across several language ecosystems: select files or other code units, express a permitted direction or forbidden dependency, and run the check through the existing test toolchain. The homepage shows a TypeScript example that protects domain independence and a Python equivalent, alongside a 24-file Interface/Presentation example and a 37-file Domain example. TypeScript and Python are marked production ready; several other language libraries are explicitly identified as previews or roadmap projects.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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archunit.net

Landing page observed 2026-09-14. The live site may have changed.