diff --git a/go/internal/auth/service.go b/go/internal/auth/service.go
index 24222b9..f15b1f8 100644
--- a/go/internal/auth/service.go
+++ b/go/internal/auth/service.go
@@ -57,10 +57,7 @@ type AuthService interface {
 	ExtendSession(ctx context.Context, sessionToken string) error
 	SignOut(ctx context.Context, sessionToken string) error
 
-	// MintFirebaseCustomToken returns a Firebase custom token with uid=humanId
-	// and no custom claims. Network membership is enforced via a Firestore
-	// mirror (humans/{humanId}.networks) read at rule eval time, so the token
-	// only needs to carry identity.
+	// MintFirebaseCustomToken returns a Firebase custom token with uid=humanId and no custom claims.
 	MintFirebaseCustomToken(ctx context.Context, humanId string) (string, error)
 
 	IsSystemAdmin(ctx context.Context, email string) bool