We've open sourced something with similar goals that you can use today: https://github.com/robusta-dev/holmesgpt/

We're taking a slightly different angle than what Facebook published, in that we're primarily using tool calling and observability data to run investigations.

What we've released really shines at surfacing up relevant observability data automatically, and we're soon planning to add the change-tracking elements mentioned in the Facebook post.

If anyone is curious, I did a webinar with PagerDuty on this recently.