diff --git a/docs/config-catalog.md b/docs/config-catalog.md
index 4a8b5a5605..541f35bf98 100644
--- a/docs/config-catalog.md
+++ b/docs/config-catalog.md
@@ -1231,7 +1231,7 @@ export interface InspectorOptions {
   readonly maxJournalBytes?: number
   /** Maximum active and completed fetch requests retained by the Worker. */
   readonly maxRetainedRequests?: number
-  /** Maximum encoded bytes accepted in one source transport frame. */
+  /** Maximum encoded bytes accepted in one source transport frame; values below 5121 leave no Cordis snapshot budget and fail. */
   readonly maxSourceFrameBytes?: number
   /** Maximum observation records accepted in one source batch. */
   readonly maxSourceRecordsPerFrame?: number
diff --git a/docs/config-catalog.zh.md b/docs/config-catalog.zh.md
index bb0d0cadc3..ddb66d4024 100644
--- a/docs/config-catalog.zh.md
+++ b/docs/config-catalog.zh.md
@@ -1233,7 +1233,7 @@ export interface InspectorOptions {
   readonly maxJournalBytes?: number
   /** Maximum active and completed fetch requests retained by the Worker. */
   readonly maxRetainedRequests?: number
-  /** Maximum encoded bytes accepted in one source transport frame. */
+  /** Maximum encoded bytes accepted in one source transport frame; values below 5121 leave no Cordis snapshot budget and fail. */
   readonly maxSourceFrameBytes?: number
   /** Maximum observation records accepted in one source batch. */
   readonly maxSourceRecordsPerFrame?: number