diff --git a/internal/source/source.go b/internal/source/source.go
index fde7798..8ae40c5 100644
--- a/internal/source/source.go
+++ b/internal/source/source.go
@@ -9,6 +9,7 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
+// CreateSourceNode will always create a new node, it checks if a node with the same url exits and merges it.
 func CreateSourceNode(ctx context.Context, driver neo4j.DriverWithContext, anthroveSource *models.AnthroveSource) error {
 	query := `
 		MERGE (sourceNode:Source {domain: $source_url})
diff --git a/pkg/graph/source.go b/pkg/graph/source.go
index 7968cdd..903a439 100644
--- a/pkg/graph/source.go
+++ b/pkg/graph/source.go
@@ -2,10 +2,13 @@ package graph
 
 import (
 	"context"
+
 	"git.dragse.it/anthrove/otter-space-sdk/pkg/models"
 )
 
 type Source interface {
+
+	// CreateSource will always create a new node, it checks if a node with the same url exits and merges it.
 	CreateSource(ctx context.Context, anthroveSource *models.AnthroveSource) error
 	DeleteSource(ctx context.Context, anthroveSource *models.AnthroveSource) error
 
diff --git a/pkg/graph/source_impl.go b/pkg/graph/source_impl.go
index fd96c0e..ca9e4bc 100644
--- a/pkg/graph/source_impl.go
+++ b/pkg/graph/source_impl.go
@@ -8,6 +8,7 @@ import (
 	"git.dragse.it/anthrove/otter-space-sdk/pkg/models"
 )
 
+// CreateSource will always create a new node, it checks if a node with the same url exits and merges it.
 func (g *graphConnection) CreateSource(ctx context.Context, anthroveSource *models.AnthroveSource) error {
 	return source.CreateSourceNode(ctx, g.driver, anthroveSource)
 }