From deb12acf598b75fead7e305471e7e2f7b27bf441 Mon Sep 17 00:00:00 2001
From: Daisuke Maki <lestrrat+github@gmail.com>
Date: Fri, 20 Feb 2026 22:26:44 +0900
Subject: [PATCH] propagate out.Send error in external filter

---
 filter/external.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/filter/external.go b/filter/external.go
index 19849f7..326c106 100644
--- a/filter/external.go
+++ b/filter/external.go
@@ -199,7 +199,7 @@ func (ecf *ExternalCmd) Apply(ctx context.Context, buf []line.Line, out pipeline
 				return nil
 			}
 			if err := out.Send(ctx, l); err != nil {
-				return nil
+				return err
 			}
 		}
 	}