diff --git a/main.go b/main.go
index c822e08..75ee1d7 100644
--- a/main.go
+++ b/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"bufio"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -212,10 +213,23 @@ func getGitInfo(cwd string) string {
 }
 
 // termWidthFunc returns the terminal width.
+// Tries stderr and stdin as fallbacks since stdout is typically piped
+// when Claude Code captures the status line output.
 // Replaced in tests to avoid depending on a real TTY.
 var termWidthFunc = func() (int, error) {
-	width, _, err := term.GetSize(int(os.Stdout.Fd()))
-	return width, err
+	for _, fd := range []uintptr{os.Stderr.Fd(), os.Stdin.Fd(), os.Stdout.Fd()} {
+		if width, _, err := term.GetSize(int(fd)); err == nil {
+			return width, nil
+		}
+	}
+	// Fall back to COLUMNS env var
+	if cols := os.Getenv("COLUMNS"); cols != "" {
+		var w int
+		if _, err := fmt.Sscanf(cols, "%d", &w); err == nil && w > 0 {
+			return w, nil
+		}
+	}
+	return 0, errors.New("no terminal detected")
 }
 
 func getTerminalWidth() int {