diff --git a/pkg/mcp/iter_test.go b/pkg/mcp/iter_test.go
index d4d3d12..358a4b3 100644
--- a/pkg/mcp/iter_test.go
+++ b/pkg/mcp/iter_test.go
@@ -29,9 +29,9 @@ func TestService_Iterators(t *testing.T) {
 	}
 }
 
-func TestRegistry_SplitTagSeq(t *testing.T) {
+func TestRegistry_SplitTag(t *testing.T) {
 	tag := "name,omitempty,json"
-	parts := slices.Collect(splitTagSeq(tag))
+	parts := splitTag(tag)
 	expected := []string{"name", "omitempty", "json"}
 
 	if !slices.Equal(parts, expected) {
diff --git a/pkg/mcp/registry.go b/pkg/mcp/registry.go
index 2126306..91c6ccf 100644
--- a/pkg/mcp/registry.go
+++ b/pkg/mcp/registry.go
@@ -4,7 +4,6 @@ package mcp
 
 import (
 	"context"
-	"iter"
 	"reflect"
 
 	core "dappco.re/go/core"
@@ -134,19 +133,6 @@ func splitTag(tag string) []string {
 	return core.Split(tag, ",")
 }
 
-// splitTagSeq returns an iterator over the tag parts.
-func splitTagSeq(tag string) iter.Seq[string] {
-	// core.Split returns []string; wrap as iterator
-	parts := core.Split(tag, ",")
-	return func(yield func(string) bool) {
-		for _, p := range parts {
-			if !yield(p) {
-				return
-			}
-		}
-	}
-}
-
 // goTypeToJSONType maps Go types to JSON Schema types.
 func goTypeToJSONType(t reflect.Type) string {
 	switch t.Kind() {