From 5b03eac7cb9e7b5c736e217d8a63b4ac14af28be Mon Sep 17 00:00:00 2001
From: demo <demo@antix1>
Date: Thu, 28 May 2026 22:24:14 -0400
Subject: feat: handle invalid arguments to 'do'

---
 main.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/main.go b/main.go
index 26bbce2..6472554 100644
--- a/main.go
+++ b/main.go
@@ -33,6 +33,16 @@ func main() {
 				},
 				Action: func(ctx context.Context, cmd *cli.Command) error {
 					taskIndex := cmd.IntArg("taskIndex")
+
+					// If taskIndex is 0, it's
+					// likely missing; any other
+					// non-positive value is a
+					// deliberate
+					// misconfiguration.
+					if taskIndex <= 0 {
+						return fmt.Errorf("invalid 'do' argument: %d", taskIndex)
+					}
+
 					fmt.Println("completed task: ", taskIndex)
 					return nil
 				},
-- 
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