diff --git a/Sources/PackageDSLKit/PackageDSLKit.swift b/Sources/PackageDSLKit/PackageDSLKit.swift
index f4251c6..8b4707a 100644
--- a/Sources/PackageDSLKit/PackageDSLKit.swift
+++ b/Sources/PackageDSLKit/PackageDSLKit.swift
@@ -28,8 +28,15 @@
 //
 
 import SwiftSyntax
+import SwiftParser
+import Foundation
 
+enum PackageDSLError : Error {
+  case custom(String, (any Sendable)?)
+  case other(any Error)
+}
 extension ImportDeclSyntax {
+  
   static func module(_ moduleName: String) -> ImportDeclSyntax {
     ImportDeclSyntax(
         path: ImportPathComponentListSyntax([
@@ -42,6 +49,15 @@ extension ImportDeclSyntax {
   }
 }
 public enum PackageDSLKit {
+  
+  static func parse(_ directoryURL: URL, with fileManager: FileManager) throws {
+    let indexFileURL = directoryURL.appendingPathComponent("Index.swift")
+    guard fileManager.fileExists(atPath: indexFileURL.path) else {
+      throw PackageDSLError.custom("Could not find Index.swift file at \(indexFileURL)", indexFileURL)
+    }
+    let sourceCode = try String(contentsOf: indexFileURL)
+  }
+  
   public static func labeledExpression(for name: String, items: [String]) -> LabeledExprSyntax {
     LabeledExprSyntax(
       leadingTrivia: .newline,
diff --git a/Sources/package/Commands.swift b/Sources/package/Commands.swift
index bfca795..a5c6305 100644
--- a/Sources/package/Commands.swift
+++ b/Sources/package/Commands.swift
@@ -78,6 +78,10 @@ enum FileManagerType : String, CaseIterable, ExpressibleByArgument {
   case fileManager
 }
 
+enum ProductType : String, CaseIterable, ExpressibleByArgument {
+  case library
+  case executable
+}
 extension Package {
   struct Initialize : ParsableCommand {
     @OptionGroup var settings: Settings
@@ -131,13 +135,25 @@ extension Package.Target {
 
 extension Package {
   struct Product : ParsableCommand {
-    
+    static let configuration: CommandConfiguration = .init(
+    subcommands: [Add.self]
+    )
   }
 }
 
 extension Package.Product {
   struct Add : ParsableCommand {
+    @Argument var name : String
     
+    @OptionGroup var settings: Settings
+    
+    @Option var type : ProductType = .library
+    
+    func run() throws {
+      // add to products directory
+      // add to index
+     
+    }
   }
 }