stranger-review.txt
Review this as if you'd just joined the project and have to maintain
it: <paste>

Answer in this order:
1. What does this do? If you can't tell in 30 seconds, say what's
   in the way.
2. What would surprise you here — anything doing something other than
   what its name suggests?
3. What breaks with unexpected input: empty, null, enormous, the
   wrong type, hostile?
4. What's not handled — errors swallowed, cases ignored?
5. What would you have to ask the author about?

Then: the three changes with the best ratio of improvement to risk.

Question 5 is the useful one. Every item in that answer is something that only exists in your head, and it's the list of comments actually worth writing.