Apply suggestions from code review

Co-authored-by: dgw <dgw@technobabbl.es>

Author: ozh

AI_POLICY.md

@@ -6,8 +6,8 @@ The YOURLS project and organization have strict rules regarding AI usage.
   the AI model you used along with the extent to which the work was AI-assisted.
 
 - **The human-in-the-loop must fully understand all code.** If you can't explain
-  without AI what your changes do and how they interact with code, please do not
-  contribute to this project.
+  without AI what your changes do and how they interact with existing code, please
+  do not contribute to this project.
 
 - **Any content generated with AI must have been reviewed _and edited_
   by a human before submission.** AI is very good at being overly verbose and
@@ -18,17 +18,18 @@ The YOURLS project and organization have strict rules regarding AI usage.
   tool describe to us what you've found or changed; say it in your own words.
 
 - **Pull Requests must be focused.** If you want to submit a pull request that fixes a
-  problem, enhances or introduce a new feature, make sure your code does just
+  problem, enhances or introduces a new feature, make sure your patch does only
   that. Pull requests that change whitespace, reword comments, or contain multiple
   unrelated sets of changes will be rejected.
 
 - **Pull Requests must originate from a real human need.** A valid pull request addresses
   a bug you actually encountered, or a feature you genuinely need. We do not
   accept pull requests where the origin is an AI agent that scanned the codebase and
-  decided something could be "improved" -- refactored, renamed, reworded, or
+  decided something could be "improved" — refactored, renamed, reworded, or
   otherwise touched. If you cannot point to a concrete problem you faced as a user,
-  there is no pull request to submit. Exception: security-related findings from a code
-  scanner are welcome, provided the submission still follows all other rules above.
+  there is no pull request to submit.\
+  **Exception:** Security-related findings from a code scanner are welcome,
+  provided the submission still follows all other rules above.
 
 ## There are Humans Here