diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index a32d07c3..88044227 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -36,6 +36,9 @@ Join our [Discord server](https://discord.com/invite/W8Kw6bsgXQ) community and p
 
 ## What happens next?
 
+### Notes for Large Changes
+> Please keep the changes as concise as possible. For major architectural changes (>500 LOC), we would expect a GitHub issue (RFC) discussing the technical design and justification. Otherwise, we will tag it with rfc-required and might not go through the PR.
+
 Once you've found an issue tagged with "good first issue" or "help wanted," or prepared an example to share, here's how to turn that into a contribution:
 
 1. Share your approach in the issue discussion or [Discord](https://discord.com/invite/W8Kw6bsgXQ) before diving deep into code. This helps ensure your solution adheres to the architecture of Graphiti from the start and saves you from potential rework.