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Worth further investigation
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https://github.com/features/copilot - Continue passive investigation as part of my 60-day free trial while working on normal sprint tasks. Seems most promising for enumerating test cases.
https://www.diffblue.com/products/ - Might be valuable for unit testing simple functions, but inadequate for anything complex. Almost certainly not worth the paid tier.
Investigation blocked
https://codeball.ai/ - Ran into issues setting up Codeball. Devs have not yet responded to requests for support.
Not worth further investigation
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Codeball
Codeball runs in your GitHub repository as a GitHub action. However, I ran into permissions issues setting up GitHub and was not able to resolve them on my own. It looks like Codeball support is done through Discord, and the Codeball devs aren’t very active there. As a result, I am currently blocked and unable to evaluate Codeball any further.