This wasp looked like it was freshly hatched and appeared to be getting its new body in the right configuration.
If it's of interest, I took a short video of the wasp, which should be viewable by anyone (I hope):
https://photos.app.goo.gl/WCURrUbQY3aiVSV8A
Later: Ooooooohhhhhh now, I see it! It's just ovipositing. 🤦♂️
Found this today, any help IDing would be so appreciated!