It would be really neat if the slack notifications used the new slack blocks API to overcome some of the width requirements enforced by the old slack webhooks api. I assume any code that generates those messages is part of the proprietary product but in the off chance I’m wrong I’d be happy to help tackle it!
Hey there @libsysguy — welcome to the Buildkite forum 
That’s an awesome suggestion, the new block kit stuff is pretty neat! You’re correct that the notification code is in the closed-source bit of Buildkite, so I can’t make an promises about when we’ll get to look into it, but I’ll definitely be scoping it out!
Cheers,
Justin