Update PULL_REQUEST_TEMPLATE.md

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,17 +1,20 @@
 ## Description
 
+<!--
+IF YOU WANT YOUR CONTRIBUTION TO BE ACCEPTED:
+This list is for developer tools exclusively.
+The following are NOT valid submissions:
+ ❌ General purpose AI agents/assistants
+ ❌ General purpose AI frameworks
+ ❌ Data analysis tools
+See the checklist below for specific requirements.
+-->
+
 <!-- Please provide a brief description of the changes in this PR -->
 
-## Type of Change
-
-- [ ] Adding a new tool/resource
-- [ ] Updating an existing entry
-- [ ] Fixing a broken link
-- [ ] Other (please describe)
-
 ## Checklist
 
-- [ ] I have read the contributing guidelines
-- [ ] The entry follows the existing format
-- [ ] Links have been verified and are working
-- [ ] The entry is placed in the appropriate category
+- [ ] The entry is a tool that uses AI
+- [ ] The entry is a developer-focused tool
+- [ ] The description is unambiguous and clear
+- [ ] The description matches the style of other entries