diff --git a/go/internal/network/service.go b/go/internal/network/service.go
index a5b9f01..c06392a 100644
--- a/go/internal/network/service.go
+++ b/go/internal/network/service.go
@@ -22,8 +22,11 @@ var ErrCapacityExceeded = errors.New("active stream capacity exceeded")
 var ErrInvalidRetentionHours = errors.New("message retention hours must be between 24 and 336")
 
 type Service interface {
+	// Create creates a network and adds adminHumanId as the first member. Returns ErrInvalidName if name is empty.
 	Create(ctx context.Context, name, adminHumanId string) (*Network, error)
+	// GetByID returns ErrNotFound if network doesn't exist.
 	GetByID(ctx context.Context, id string) (*Network, error)
+	// SetName returns ErrNotFound or ErrInvalidName.
 	SetName(ctx context.Context, id, name string) error
 	// AddMembers inserts members and syncs the new seat count to billing
 	// atomically; a Stripe failure rolls the insert back.
@@ -32,6 +35,7 @@ type Service interface {
 	CountSeats(ctx context.Context, networkID string) (int, error)
 	ListForHuman(ctx context.Context, humanId string) ([]*Network, error)
 	IsMember(ctx context.Context, networkID, humanId string) (bool, error)
+	// ListAll returns all networks with their members
 	ListAll(ctx context.Context) ([]*Network, error)
 
 	// Invitations (email-based, for users who haven't registered yet)