Assuming you mean "context engineering" as in "engineering the context for LLM prompts" - 0.
I take particular issue with the usage of the word "engineering", in this context, as in my practical experience what I witnessed was more akin to "try random things until it somewhat works" than anything I would associate with "engineering". But hey, it's a free country and people can use words whichever way they want. Just shouldn't be confused if noone keeps on listening ;)