There’s a new Claude plugin from MSE for measuring / improving test quality, using Dave Farley’s 8 properties of good tests:

• plugin: https://github.com/mse-online/farley_score_plugin
• description of 8 properties: https://www.linkedin.com/pulse/tdd-properties-good-tests-dave-farley-iexge/
• Andrea Laforgia’s prior art agent: https://github.com/a4al6a/claude-code-agents/tree/main/alf-test-design-reviewer

Ruby is not one of the supported languages, but at an initial look (and in case someone else gets to it first), it looks like this is the file to add Ruby-specific examples to.

I also know that Emily Bache was in the middle of examining and possibly consolidating other taxonomies of good tests – video on the MSE channel here – building on / starting from Kent Beck’s Test Desiderata (see also here) and I don’t know if this plugin might be updated to reflect that research, but I’m curious.