feat: all six CLI commands (new, list, resume, open, info, archive)

Complete command implementations with all flags per spec. Shared query resolution helper.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cmd/new.go

@@ -0,0 +1,84 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/warrenronsiek/ctask/internal/config"
+	"github.com/warrenronsiek/ctask/internal/shell"
+	"github.com/warrenronsiek/ctask/internal/workspace"
+)
+
+var newCmd = &cobra.Command{
+	Use:   "new [title]",
+	Short: "Create a new task workspace and launch the agent",
+	Long:  "Create a new task workspace and launch the agent. If title is omitted, generates task-HHMMSS.",
+	Args:  cobra.MaximumNArgs(1),
+	RunE:  runNew,
+}
+
+var (
+	newCategory  string
+	newContainer bool
+	newShell     bool
+	newAgent     string
+	newNoLaunch  bool
+)
+
+func init() {
+	newCmd.Flags().StringVarP(&newCategory, "category", "c", "general", "Workspace category subdirectory")
+	newCmd.Flags().BoolVar(&newContainer, "container", false, "Launch in container sandbox (v0.2)")
+	newCmd.Flags().BoolVar(&newShell, "shell", false, "Open interactive shell instead of agent")
+	newCmd.Flags().StringVarP(&newAgent, "agent", "a", "", "Command to exec as the agent")
+	newCmd.Flags().BoolVar(&newNoLaunch, "no-launch", false, "Create workspace only, do not launch")
+	rootCmd.AddCommand(newCmd)
+}
+
+func runNew(cmd *cobra.Command, args []string) error {
+	if newContainer {
+		fmt.Println(shell.ContainerNotice())
+		return nil
+	}
+
+	root := config.ResolveRoot()
+	agent := newAgent
+	if agent == "" {
+		agent = config.ResolveAgent()
+	}
+
+	title := ""
+	if len(args) > 0 {
+		title = args[0]
+	}
+
+	ws, err := workspace.Create(workspace.CreateOpts{
+		Root:     root,
+		Title:    title,
+		Category: newCategory,
+		Mode:     "local",
+		Agent:    agent,
+	})
+	if err != nil {
+		return err
+	}
+
+	relPath := workspace.RelativePath(root, ws.Path)
+	fmt.Printf("[ctask] created %s\n", relPath)
+
+	if newNoLaunch {
+		return nil
+	}
+
+	envVars := config.EnvVars(ws.Meta.Slug, ws.Meta.Mode, root, ws.Path, ws.Meta.Category)
+
+	if newShell {
+		return shell.ExecShell(ws.Path, envVars, ws.Meta.Slug, ws.Meta.Mode)
+	}
+
+	// Agent mode: print banner and exec
+	for _, line := range shell.BannerLines(ws.Meta.Mode, ws.Meta.Slug, ws.Path) {
+		fmt.Println(line)
+	}
+
+	return shell.ExecAgent(agent, ws.Path, envVars)
+}