Insert tag based on file path

What I’m trying to do

Based on the file path, I would like Templater to add a file tag. In pseudocode
inSdlc = filePath includes “SDLC”
add “sdlc” to file tags

Things I have tried

I suspect I might need to use tp frontmatter to get the desired results, but my experiments there didn’t go any better.

Forgot to paste the code I was using:
<%* await
if(tp.file.path(1).includes("Coverage Areas/SDLC")) tp.file.tags.push("sldc")
_%>

Have you tried the Folder templates in Templater? You’d need a template for each folder, which isn’t as elegant as just having a line of code, I guess, but you could have templates for each folder, and then the only difference would be the tag.