test: add e2e test suite and fix namespace/mention/assignee flags

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cmd/alias.go

@@ -22,11 +22,12 @@ var aliasCmd = &cobra.Command{
 			return
 		}
 		if len(args) == 1 {
-			if a, err := cfg.GetAlias(args[0]); err != nil {
+			a, err := cfg.GetAlias(args[0])
+			if err != nil {
 				fmt.Fprintln(os.Stderr, "alias not found:", args[0])
-			} else {
-				fmt.Println(a.Command)
+				os.Exit(1)
 			}
+			fmt.Println(a.Command)
 			return
 		}
 		if err := cfg.SetAlias(&service.Alias{Name: args[0], Command: args[1], Description: aliasDesc}); err != nil {
@@ -42,9 +43,9 @@ var aliasDelCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		if err := cfg.DeleteAlias(args[0]); err != nil {
 			fmt.Fprintln(os.Stderr, err)
-		} else {
-			output.PrintAction(cmd.OutOrStdout(), "Alias deleted", args[0], false)
+			os.Exit(1)
 		}
+		output.PrintAction(cmd.OutOrStdout(), "Alias deleted", args[0], false)
 	},
 }
 

cmd/del.go

@@ -23,8 +23,8 @@ var delCmd = &cobra.Command{
 
 		n, err := svc.GetByID(args[0])
 		if err != nil {
-			fmt.Fprintf(os.Stderr, "node not found: %s", args[0])
-			return
+			fmt.Fprintf(os.Stderr, "node not found: %s\n", args[0])
+			os.Exit(1)
 		}
 
 		if !dForce {

cmd/root.go

@@ -44,22 +44,38 @@ func registerAliasCommands() {
 				acmd = strings.ReplaceAll(acmd, "$me", cfg.GetUser())
 				parts := strings.Fields(acmd)
 				var expanded []string
+				usedArgs := make([]bool, len(args))
 				for _, part := range parts {
 					if part == "$@" {
 						expanded = append(expanded, args...)
+						for i := range usedArgs {
+							usedArgs[i] = true
+						}
 						continue
 					}
 					hasCatchAll := strings.Contains(part, "$@")
 					replaced := part
 					if hasCatchAll {
 						replaced = strings.ReplaceAll(replaced, "$@", strings.Join(args, " "))
+						for i := range usedArgs {
+							usedArgs[i] = true
+						}
 					}
 					for i := len(args) - 1; i >= 0; i-- {
 						placeholder := fmt.Sprintf("$%d", i+1)
-						replaced = strings.ReplaceAll(replaced, placeholder, args[i])
+						if strings.Contains(replaced, placeholder) {
+							replaced = strings.ReplaceAll(replaced, placeholder, args[i])
+							usedArgs[i] = true
+						}
 					}
 					expanded = append(expanded, replaced)
 				}
+				// Forward any unconsumed args (e.g. --json flag).
+				for i, arg := range args {
+					if !usedArgs[i] {
+						expanded = append(expanded, arg)
+					}
+				}
 				rootCmd.SetArgs(expanded)
 				if err := rootCmd.Execute(); err != nil {
 					os.Exit(1)

cmd/show.go

@@ -18,11 +18,12 @@ var showCmd = &cobra.Command{
 			return
 		}
 
-		if n, err := svc.GetByID(args[0]); err == nil {
-			output.PrintNode(cmd.OutOrStdout(), svc, n, jsonFlag)
-		} else {
+		n, err := svc.GetByID(args[0])
+		if err != nil {
 			fmt.Fprintln(os.Stderr, "node not found:", args[0])
+			os.Exit(1)
 		}
+		output.PrintNode(cmd.OutOrStdout(), svc, n, jsonFlag)
 	},
 }