feat(dvb): improve CLI developer experience

cmd/dvb/completion.go

@@ -0,0 +1,57 @@
+// cmd/dvb/completion.go
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+func newCompletionCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "completion [bash|zsh|fish|powershell]",
+		Short: "Generate shell completion scripts",
+		Long: `Generate shell completion scripts for dvb.
+
+To load completions:
+
+Bash:
+  $ source <(dvb completion bash)
+  # To load for each session:
+  $ echo 'source <(dvb completion bash)' >> ~/.bashrc
+
+Zsh:
+  $ source <(dvb completion zsh)
+  # To load for each session:
+  $ echo 'source <(dvb completion zsh)' >> ~/.zshrc
+
+Fish:
+  $ dvb completion fish | source
+  # To load for each session:
+  $ dvb completion fish > ~/.config/fish/completions/dvb.fish
+
+PowerShell:
+  PS> dvb completion powershell | Out-String | Invoke-Expression
+  # To load for each session, add to your profile:
+  PS> dvb completion powershell >> $PROFILE`,
+		Args:      cobra.ExactArgs(1),
+		ValidArgs: []string{"bash", "zsh", "fish", "powershell"},
+		RunE: func(cmd *cobra.Command, args []string) error {
+			switch args[0] {
+			case "bash":
+				return cmd.Root().GenBashCompletion(os.Stdout)
+			case "zsh":
+				return cmd.Root().GenZshCompletion(os.Stdout)
+			case "fish":
+				return cmd.Root().GenFishCompletion(os.Stdout, true)
+			case "powershell":
+				return cmd.Root().GenPowerShellCompletion(os.Stdout)
+			default:
+				return fmt.Errorf("unsupported shell: %s (supported: bash, zsh, fish, powershell)", args[0])
+			}
+		},
+	}
+
+	return cmd
+}

cmd/dvb/daemon.go

@@ -241,7 +241,7 @@ Examples:
 
 			// Local connection
 			if !client.IsDaemonRunning() {
-				return fmt.Errorf("daemon not running - start with: devnetd")
+				return errDaemonNotRunning
 			}
 
 			// Create local client and call WhoAmI

cmd/dvb/delete.go

@@ -107,7 +107,7 @@ func runDeleteFromFile(cmd *cobra.Command, namespace, filePath string, force, dr
 	}
 
 	// Confirm if not forced
-	if !force {
+	if !force && !ShouldSkipConfirm() {
 		fmt.Printf("This will delete %d devnet(s):\n", len(devnets))
 		for i := range devnets {
 			ns := devnets[i].Metadata.Namespace
@@ -170,7 +170,7 @@ func runDeleteDevnet(cmd *cobra.Command, namespace, explicitName string, force,
 	}
 
 	// Confirm if not forced
-	if !force {
+	if !force && !ShouldSkipConfirm() {
 		fmt.Printf("Are you sure you want to delete devnet %q (namespace: %s)? [y/N] ", name, ns)
 		var response string
 		if _, err := fmt.Scanln(&response); err != nil || (response != "y" && response != "Y") {

cmd/dvb/errors.go

@@ -0,0 +1,16 @@
+// cmd/dvb/errors.go
+package main
+
+import "fmt"
+
+// errDaemonNotRunning is the standard error returned when daemon connection is required but unavailable.
+var errDaemonNotRunning = fmt.Errorf("daemon not running - start with: devnetd")
+
+// requireDaemon returns errDaemonNotRunning if the daemon client is not connected.
+// Usage: if err := requireDaemon(); err != nil { return err }
+func requireDaemon() error {
+	if daemonClient == nil {
+		return errDaemonNotRunning
+	}
+	return nil
+}

cmd/dvb/get.go

@@ -44,8 +44,8 @@ Examples:
   dvb get staging/my-devnet`,
 		Args: cobra.MaximumNArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if daemonClient == nil {
-				return fmt.Errorf("daemon not running - start with: devnetd")
+			if err := requireDaemon(); err != nil {
+				return err
 			}
 
 			var explicitDevnet string

cmd/dvb/interactive.go

@@ -0,0 +1,30 @@
+// cmd/dvb/interactive.go
+package main
+
+import (
+	"os"
+
+	"github.com/altuslabsxyz/devnet-builder/internal/tui"
+)
+
+var (
+	// flagYes auto-confirms all confirmation prompts.
+	flagYes bool
+	// flagNonInteractive disables all interactive UI elements (pickers, wizards, TUI).
+	flagNonInteractive bool
+)
+
+// IsNonInteractive returns true if interactive mode should be disabled.
+// Checks the --non-interactive flag, DVB_NON_INTERACTIVE=1 / CI=true env vars, or non-TTY.
+func IsNonInteractive() bool {
+	return flagNonInteractive ||
+		os.Getenv("DVB_NON_INTERACTIVE") == "1" ||
+		os.Getenv("CI") == "true" ||
+		!tui.IsInteractive()
+}
+
+// ShouldSkipConfirm returns true if confirmation prompts should be auto-accepted.
+// Checks --yes flag, --non-interactive flag, env vars, or non-TTY.
+func ShouldSkipConfirm() bool {
+	return flagYes || IsNonInteractive()
+}

cmd/dvb/main.go

@@ -3,6 +3,7 @@ package main
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"os"
@@ -13,7 +14,6 @@ import (
 	"github.com/altuslabsxyz/devnet-builder/internal/daemon/types"
 	"github.com/altuslabsxyz/devnet-builder/internal/dvbcontext"
 	"github.com/altuslabsxyz/devnet-builder/internal/output"
-	"github.com/altuslabsxyz/devnet-builder/internal/tui"
 	"github.com/altuslabsxyz/devnet-builder/internal/version"
 	"github.com/fatih/color"
 	"github.com/spf13/cobra"
@@ -183,6 +183,8 @@ func main() {
 	rootCmd.PersistentFlags().StringVar(&flagServer, "server", "", "Remote devnetd server address (e.g., devnetd.example.com:9000)")
 	rootCmd.PersistentFlags().StringVar(&flagAPIKey, "api-key", "", "API key for remote server authentication")
 	rootCmd.PersistentFlags().BoolVar(&flagLocal, "local", false, "Force local Unix socket connection (ignore config)")
+	rootCmd.PersistentFlags().BoolVarP(&flagYes, "yes", "y", false, "Auto-confirm all prompts (skip confirmations)")
+	rootCmd.PersistentFlags().BoolVar(&flagNonInteractive, "non-interactive", false, "Disable all interactive UI elements (pickers, wizards)")
 
 	// Add commands
 	rootCmd.AddCommand(
@@ -193,15 +195,16 @@ func main() {
 		newGetCmd(),
 		newDeleteCmd(),
 		newListCmd(),
-		newStartCmd(),
-		newStopCmd(),
 		newNodeCmd(),
 		newUpgradeCmd(),
 		newTxCmd(),
 		newGovCmd(),
 		newGenesisCmd(),
 		newProvisionCmd(),
 		newConfigCmd(),
+		newCompletionCmd(),
+		newDeprecatedStartCmd(),
+		newDeprecatedStopCmd(),
 	)
 
 	if err := rootCmd.Execute(); err != nil {
@@ -260,22 +263,29 @@ func newVersionCmd() *cobra.Command {
 }
 
 func newListCmd() *cobra.Command {
-	var namespace string
+	var (
+		namespace string
+		output    string
+	)
 
 	cmd := &cobra.Command{
 		Use:     "list",
 		Short:   "List all devnets",
 		Aliases: []string{"ls"},
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if daemonClient == nil {
-				return fmt.Errorf("daemon not running - start with: devnetd")
+			if err := requireDaemon(); err != nil {
+				return err
 			}
 
 			devnets, err := daemonClient.ListDevnets(cmd.Context(), namespace)
 			if err != nil {
 				return err
 			}
 
+			if output == "json" {
+				return printJSON(devnets)
+			}
+
 			if len(devnets) == 0 {
 				fmt.Println("No devnets found")
 				return nil
@@ -299,143 +309,49 @@ func newListCmd() *cobra.Command {
 	}
 
 	cmd.Flags().StringVarP(&namespace, "namespace", "n", "", "Filter by namespace (empty = all namespaces)")
+	cmd.Flags().StringVarP(&output, "output", "o", "", "Output format: json")
 
 	return cmd
 }
 
-func newStartCmd() *cobra.Command {
-	var (
-		namespace string
-		noWait    bool
-		verbose   bool
-		force     bool
-	)
-
+// newDeprecatedStartCmd returns a hidden "start" command that tells users to use "dvb node start --all".
+func newDeprecatedStartCmd() *cobra.Command {
 	cmd := &cobra.Command{
-		Use:   "start [devnet]",
-		Short: "Start a stopped devnet",
-		Long:  "Start a stopped devnet. If already running, prompts to restart (use --force to skip prompt).",
-		Args:  cobra.MaximumNArgs(1),
+		Use:        "start",
+		Short:      "Deprecated: use 'dvb node start --all'",
+		Hidden:     true,
+		Deprecated: "use 'dvb node start --all' instead",
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if daemonClient == nil {
-				return fmt.Errorf("daemon not running - start with: devnetd")
-			}
-
-			// 1. Resolve devnet from args or context
-			var explicitDevnet string
-			if len(args) > 0 {
-				explicitDevnet = args[0]
-			}
-
-			ns, name, err := resolveWithSuggestions(explicitDevnet, namespace)
-			if err != nil {
-				return err
-			}
-
-			printContextHeader(explicitDevnet, currentContext)
-
-			// 2. Get current status to check if already running
-			devnet, err := daemonClient.GetDevnet(cmd.Context(), ns, name)
-			if err != nil {
-				return fmt.Errorf("failed to get devnet: %w", err)
-			}
-
-			// 3. Check if running - prompt for restart (unless --force)
-			if devnet.Status.Phase == types.PhaseRunning {
-				if !force {
-					// In non-interactive mode without --force, error out
-					if !tui.IsInteractive() {
-						return fmt.Errorf("devnet %q is already running; use --force to restart in non-interactive mode", name)
-					}
-					// Interactive mode: prompt for confirmation
-					fmt.Fprintf(os.Stderr, "Devnet %q is already running. Restart? [y/N] ", name)
-					var response string
-					if _, err := fmt.Scanln(&response); err != nil ||
-						(response != "y" && response != "Y") {
-						fmt.Fprintf(os.Stderr, "Cancelled\n")
-						return nil
-					}
-				}
-
-				// Stop for restart
-				color.Yellow("Stopping devnet %q...", name)
-				if _, err := daemonClient.StopDevnet(cmd.Context(), ns, name); err != nil {
-					return fmt.Errorf("failed to stop: %w", err)
-				}
-			}
-
-			// 4. Start the devnet
-			devnet, err = daemonClient.StartDevnet(cmd.Context(), ns, name)
-			if err != nil {
-				return fmt.Errorf("failed to start: %w", err)
-			}
-
-			// 5. Handle --no-wait
-			if noWait {
-				color.Green("✓ Devnet %q starting", name)
-				fmt.Fprintf(os.Stderr, "  Phase: %s\n", devnet.Status.Phase)
-				return nil
-			}
-
-			// 6. Handle wait behavior (same pattern as provision.go)
-			if tui.IsInteractive() && !verbose {
-				// Use TUI for interactive terminals
-				return runStartTUI(cmd.Context(), ns, name)
-			}
-			// Stream detailed status (verbose or non-interactive)
-			return pollStartStatus(cmd.Context(), ns, name)
+			return fmt.Errorf("'dvb start' has been replaced by 'dvb node start --all'\n\nUsage:\n  dvb node start --all            # start all nodes\n  dvb node start validator-0      # start a single node")
 		},
 	}
-
-	cmd.Flags().StringVarP(&namespace, "namespace", "n", "", "Namespace (defaults to server default)")
-	cmd.Flags().BoolVar(&noWait, "no-wait", false, "Return immediately without waiting")
-	cmd.Flags().BoolVarP(&verbose, "verbose", "v", false, "Show verbose status updates")
-	cmd.Flags().BoolVarP(&force, "force", "f", false, "Force restart without confirmation prompt")
-
 	return cmd
 }
 
-func newStopCmd() *cobra.Command {
-	var namespace string
-
+// newDeprecatedStopCmd returns a hidden "stop" command that tells users to use "dvb node stop --all".
+func newDeprecatedStopCmd() *cobra.Command {
 	cmd := &cobra.Command{
-		Use:   "stop [devnet]",
-		Short: "Stop a running devnet",
-		Args:  cobra.MaximumNArgs(1),
+		Use:        "stop",
+		Short:      "Deprecated: use 'dvb node stop --all'",
+		Hidden:     true,
+		Deprecated: "use 'dvb node stop --all' instead",
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if daemonClient == nil {
-				return fmt.Errorf("daemon not running - start with: devnetd")
-			}
-
-			var explicitDevnet string
-			if len(args) > 0 {
-				explicitDevnet = args[0]
-			}
-
-			ns, name, err := resolveWithSuggestions(explicitDevnet, namespace)
-			if err != nil {
-				return err
-			}
-
-			printContextHeader(explicitDevnet, currentContext)
-
-			devnet, err := daemonClient.StopDevnet(cmd.Context(), ns, name)
-			if err != nil {
-				return err
-			}
-
-			color.Green("✓ Devnet %q stopped", devnet.Metadata.Name)
-			fmt.Printf("  Phase: %s\n", devnet.Status.Phase)
-
-			return nil
+			return fmt.Errorf("'dvb stop' has been replaced by 'dvb node stop --all'\n\nUsage:\n  dvb node stop --all             # stop all nodes\n  dvb node stop validator-0       # stop a single node")
 		},
 	}
-
-	cmd.Flags().StringVarP(&namespace, "namespace", "n", "", "Namespace (defaults to server default)")
-
 	return cmd
 }
 
+// printJSON marshals v to indented JSON and writes it to stdout.
+func printJSON(v interface{}) error {
+	out, err := json.MarshalIndent(v, "", "  ")
+	if err != nil {
+		return fmt.Errorf("failed to marshal json: %w", err)
+	}
+	fmt.Println(string(out))
+	return nil
+}
+
 // getBinaryNameFromPlugin returns the CLI binary name for a given plugin.
 // Falls back to "gaiad" if plugin is unknown.
 func getBinaryNameFromPlugin(plugin string) string {