Is it possible to add comments into the Artifact paths field in Team City? What format should I use? I'd like for the next guy to be able to quickly understand what is going on and why.
You can use anything that doesn't match a file. It will show up as warning in the build log (matching artifacts not found), but do no harm otherwise.
I use a hash to start comments, for example:
# Collect all DLLs from unicorn
unicorn/**/*.dll
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