diff --git a/planning/.pages b/planning/.pages
index 0738d9a3186d1..3e9a7f5cebcb2 100644
--- a/planning/.pages
+++ b/planning/.pages
@@ -76,6 +76,9 @@ nav:
     - 'RTC Interface': planning/rtc_interface
   - 'Additional Tools':
     - 'RTC Replayer': planning/rtc_replayer
+    - 'Planning Debug Tools':
+      - 'About Planning Debug Tools': https://github.com/autowarefoundation/autoware_tools/tree/main/planning_debug_tools
+      - 'Stop Reason Visualizer': https://github.com/autowarefoundation/autoware_tools/tree/main/planning_debug_tools/doc-stop-reason-visualizer
     - 'Planning Test Utils': planning/planning_test_utils
     - 'Planning Topic Converter': planning/planning_topic_converter
     - 'Planning Validator': planning/planning_validator