chore: add additional text to CONTRIBUTING.md (#6833)

* chore: add additional text to CONTRIBUTING.md

* chore: minor typo fix

---------

Co-authored-by: Zoe Wang <33073555+zoewangg@users.noreply.github.com>

Author: kellertk

CONTRIBUTING.md

@@ -9,6 +9,7 @@ __Jump To:__
 * [Feature Requests](#feature-requests)
 * [Code Contributions](#code-contributions)
 * [Running CI Checks Locally](#running-ci-checks-locally)
+* [Automated Tools](#automated-tools)
 * [Additional Resources](#additional-resources)
 
 ## Bug Reports
@@ -185,6 +186,24 @@ mvn clean install -Dskip.unit.tests -P integration-tests -Dfindbugs.skip -Dcheck
 mvn clean install -pl :dynamodb-enhanced -am -Dskip.unit.tests -P integration-tests -Dfindbugs.skip -Dcheckstyle.skip
 ```
 
+## Automated Tools
+
+The use of AI tooling for assisted development work is accepted and encouraged
+in this repository, but due to the volume of submissions we ask that you observe
+the following rules:
+
+- All issue and pull request submissions to this repository that are sourced by
+  AI must first be reviewed by a human before submitting to the repository.
+  Items reviewed in this way must include a statement like "generated by AI
+  tools, and reviewed by <person>"
+- Please ensure that your submissions are actually improvements. While we are
+  grateful for any proposed fixes, even if they are very small, behavior that
+  looks like creating nuisance PRs or artificially inflating submission counts
+  is not acceptable.
+- We may close issues or pull requests, or limit your ability to interact with
+  this repository, for behavior that in our estimation violates these rules or
+  any of the other rules in this repository's
+  [Code of Conduct](CODE_OF_CONDUCT.md)
 
 ## Additional Resources
 We maintain [docs](docs/README.md) where information like design decisions, internal