diff --git a/CLAUDE.md b/CLAUDE.md
index 6942532..10eb3b9 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -63,6 +63,10 @@ Read-only diagnostic workflow — queries current network settings and firmware
 - Displays results in two tables: network configuration and firmware versions
 - User selects Serial, Network, or Cancel at the sub-menu prompt
 
+## Reference Documentation
+
+**ES24N Configuration Guide:** `docs/ES24NPSG26031.pdf` — consult this for any Redfish API commands, request/response formats, field names, or configuration procedures when working on this project.
+
 ## Key Design Notes
 
 **Static IP firmware bug workaround:** Setting a static IP requires two sequential PATCH requests: