1 files changed, 14 insertions, 0 deletions
diff --git a/cmd/krino/main.go b/cmd/krino/main.go
index 9618f6c..e204b5f 100644
--- a/cmd/krino/main.go
+++ b/cmd/krino/main.go
@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"strings"
 )
 
 // version is stamped by the Makefile with -ldflags "-X main.version=...".
@@ -71,6 +72,19 @@ func run(args []string, stdout, stderr io.Writer) int {
 			return cmd(g, rest[1:], stdout, stderr)
 		}
 	}
+	// Ruling 2026-09-12/4: Go's flag package stops parsing at the first
+	// non-flag argument, so "krino dl -n" leaves "-n" in rest as a second
+	// directory name instead of a flag - the dry run is silently never
+	// honoured. A leftover argument that still looks like a flag is a
+	// usage error rather than a guess; there is deliberately no second
+	// pass that re-parses trailing flags, which would make "krino --
+	// -weird-dir" ambiguous between the two syntaxes.
+	for _, a := range rest {
+		if strings.HasPrefix(a, "-") {
+			fmt.Fprintf(stderr, "krino: %s: flags must come before directory names\nrun 'krino -h' for help\n", a)
+			return 2
+		}
+	}
 	return cmdSort(g, rest, stdout, stderr)
 }