diff --git a/chain/node.go b/chain/node.go
index 1697a4f..56894ff 100644
--- a/chain/node.go
+++ b/chain/node.go
@@ -30,7 +30,7 @@ type HTTPURLRewriteSetting struct {
 	Replacement string
 }
 
-// HTTPBodyRewriteSettings defines an HTTP response body rewrite rule.
+// HTTPBodyRewriteSettings defines an HTTP body rewrite rule.
 type HTTPBodyRewriteSettings struct {
 	// Type is the MIME type to match, e.g. "text/html".
 	Type string
@@ -54,6 +54,8 @@ type HTTPNodeSettings struct {
 	RewriteURL []HTTPURLRewriteSetting
 	// RewriteResponseBody holds the response body rewrite rules.
 	RewriteResponseBody []HTTPBodyRewriteSettings
+	// RewriteRequestBody holds the request body rewrite rules.
+	RewriteRequestBody []HTTPBodyRewriteSettings
 }
 
 // TLSNodeSettings holds TLS configuration for a node.
diff --git a/observer/stats/stats.go b/observer/stats/stats.go
index ebbf67b..83354c0 100644
--- a/observer/stats/stats.go
+++ b/observer/stats/stats.go
@@ -27,6 +27,6 @@ type Stats interface {
 	Get(kind Kind) uint64
 	// IsUpdated reports whether any stat has changed since the last Reset.
 	IsUpdated() bool
-	// Reset clears the IsUpdated flag.
+	// Reset clears all counters to zero and resets the IsUpdated flag.
 	Reset()
 }