Move ai-modernize.md to migration section; trim duplication in ai-for-windows-devs.md

- Moved hub/apps/get-started/ai-modernize.md to
  hub/apps/windows-app-sdk/migrate-to-windows-app-sdk/ai-modernize.md
  per reviewer suggestion that the content fits the migration section better
- Updated all relative links inside the moved file
- Added entry to develop/toc.yml under 'Migrate from UWP' section
- Removed entry from hub/apps/toc.yml get-started section
- Trimmed duplicate tool descriptions in ai-for-windows-devs.md;
  replaced with single paragraph linking to agentic-tools.md
- Updated ai-for-windows-devs.md Next steps link to new file location

Co-authored-by: Copilot <[email protected]>

Author: GrantMeStrength

hub/apps/develop/toc.yml

@@ -898,6 +898,8 @@ items:
                 href: ../windows-app-sdk/migrate-to-windows-app-sdk/case-study-2.md
               - name: Additional migration guidance
                 href: ../windows-app-sdk/migrate-to-windows-app-sdk/misc-info.md
+              - name: Modernize or port a Windows app with GitHub Copilot
+                href: ../windows-app-sdk/migrate-to-windows-app-sdk/ai-modernize.md
               - name: Migrate UWP to Windows App SDK with the .NET Upgrade Assistant
                 href: ../windows-app-sdk/migrate-to-windows-app-sdk/upgrade-assistant.md
     - name: Use MSIX framework packages

hub/apps/get-started/ai-for-windows-devs.md

@@ -23,19 +23,9 @@ This article introduces the tools and what they make possible. When you're ready
 
 For Windows developers, the key is giving Copilot accurate Windows-specific knowledge. Out of the box, Copilot knows a lot about general C# and .NET — but it can struggle with WinUI 3 specifics, confusing newer APIs with deprecated UWP equivalents. The tools below fix that.
 
-### WinUI 3 development plugin
+### WinUI 3 development plugin and Microsoft Learn MCP Server
 
-The [WinUI 3 development plugin](../dev-tools/agentic-tools.md#winui-3-development-plugin-for-github-copilot) for GitHub Copilot teaches Copilot the right modern Windows App SDK patterns. It includes:
-
-- A **WinUI 3 Expert agent** that knows current API namespaces, XAML controls, MVVM patterns, and app lifecycle
-- A **migration guide skill** (`/winui3-development:winui3-migration-guide`) that maps UWP APIs to their WinUI 3 equivalents with before/after code samples
-- **Custom instructions** applied to your XAML and C# files that prevent the most common mistakes, like using `CoreDispatcher` instead of `DispatcherQueue`
-
-### Microsoft Learn MCP Server
-
-The [Microsoft Learn MCP Server](../dev-tools/agentic-tools.md#microsoft-learn-mcp-server) gives Copilot live access to official Microsoft documentation. Instead of relying on training data that may be out of date, Copilot can look up the latest API references, code samples, and release notes as it helps you code.
-
-Add one endpoint to your IDE config and Copilot can answer questions like *"What's the WinUI 3 API for showing a file picker?"* with accurate, current answers.
+Two tools give Copilot the Windows-specific context it needs: the **WinUI 3 development plugin** (which teaches Copilot correct modern API patterns) and the **Microsoft Learn MCP Server** (which gives Copilot live access to official documentation). Full details and setup are in [Agentic AI tools for Windows development](../dev-tools/agentic-tools.md).
 
 ### Windows App Development CLI (winapp CLI)
 
@@ -91,5 +81,5 @@ Electron, Flutter, React Native, and Rust developers can use Copilot to adapt th
 Or jump straight to:
 
 - [Tutorial: Build a Windows app with GitHub Copilot](ai-build.md)
-- [Modernize or port a Windows app with Copilot](ai-modernize.md)
+- [Modernize or port a Windows app with Copilot](../windows-app-sdk/migrate-to-windows-app-sdk/ai-modernize.md)
 - [Agentic AI tools for Windows development](../dev-tools/agentic-tools.md)

hub/apps/toc.yml

@@ -96,8 +96,7 @@ items:
       href: get-started/ai-setup.md
     - name: "Tutorial: Build a Windows app with GitHub Copilot"
       href: get-started/ai-build.md
-    - name: Modernize or port a Windows app with Copilot
-      href: get-started/ai-modernize.md
+
   - name: Samples and resources
     items:
     - name: Samples

hub/apps/get-started/ai-modernize.md …grate-to-windows-app-sdk/ai-modernize.mdhub/apps/get-started/ai-modernize.md renamed to hub/apps/windows-app-sdk/migrate-to-windows-app-sdk/ai-modernize.md hub/apps/get-started/ai-modernize.md renamed to hub/apps/windows-app-sdk/migrate-to-windows-app-sdk/ai-modernize.md

@@ -21,7 +21,7 @@ Make sure you have the key tools configured:
 - **Microsoft Learn MCP Server** — gives Copilot access to current Windows App SDK documentation
 - **winapp CLI** — adds package identity and Windows packaging to any framework
 
-If you haven't set these up yet, start with [Set up GitHub Copilot for Windows development](ai-setup.md).
+If you haven't set these up yet, start with [Set up GitHub Copilot for Windows development](../../get-started/ai-setup.md).
 
 ---
 
@@ -107,7 +107,7 @@ Ask Copilot to walk you through it:
 
 ## Add Windows features to a cross-platform app
 
-Electron, Flutter, React Native, and Rust apps can all become first-class Windows citizens with [winapp CLI](../dev-tools/winapp-cli/index.md). Copilot helps you adapt your code for Windows APIs once you have package identity.
+Electron, Flutter, React Native, and Rust apps can all become first-class Windows citizens with [winapp CLI](../../dev-tools/winapp-cli/index.md). Copilot helps you adapt your code for Windows APIs once you have package identity.
 
 ### Electron
 
@@ -121,7 +121,7 @@ Once the addon is scaffolded, ask Copilot to integrate it:
 
 > *"I've scaffolded a Windows notifications addon for my Electron app using winapp CLI. Show me how to send a notification from the main process when a download completes."*
 
-For a complete walkthrough, see the [Electron setup guide](../dev-tools/winapp-cli/guides/electron-setup.md).
+For a complete walkthrough, see the [Electron setup guide](../../dev-tools/winapp-cli/guides/electron-setup.md).
 
 ### Flutter
 
@@ -131,19 +131,19 @@ winapp init
 
 > *"I have a Flutter app for Windows. Show me how to use the Windows App SDK to add a system tray icon with a context menu."*
 
-See the [Flutter guide](../dev-tools/winapp-cli/guides/flutter.md) for Windows-specific setup.
+See the [Flutter guide](../../dev-tools/winapp-cli/guides/flutter.md) for Windows-specific setup.
 
 ### WPF / .NET
 
 > *"I have a WPF app. Walk me through using winapp CLI to add MSIX packaging and then add an on-device AI feature using the Windows AI APIs."*
 
-See the [.NET guide](../dev-tools/winapp-cli/guides/dotnet.md).
+See the [.NET guide](../../dev-tools/winapp-cli/guides/dotnet.md).
 
 ---
 
 ## What gets unlocked by package identity
 
-Many powerful Windows features require [package identity](../dev-tools/winapp-cli/index.md#why-package-identity) — which winapp CLI can add to any framework. Once you have it, Copilot can help you use:
+Many powerful Windows features require [package identity](../../dev-tools/winapp-cli/index.md#why-package-identity) — which winapp CLI can add to any framework. Once you have it, Copilot can help you use:
 
 | Feature | What to ask Copilot |
 |---|---|
@@ -157,7 +157,7 @@ Many powerful Windows features require [package identity](../dev-tools/winapp-cl
 
 ## Next steps
 
-- [Agentic AI tools for Windows development](../dev-tools/agentic-tools.md) — full details on the WinUI 3 plugin and Learn MCP Server
-- [Windows App Development CLI (winapp CLI)](../dev-tools/winapp-cli/index.md) — full reference for adding Windows features to any framework
-- [Windows App SDK documentation](../windows-app-sdk/index.md)
+- [Agentic AI tools for Windows development](../../dev-tools/agentic-tools.md) — full details on the WinUI 3 plugin and Learn MCP Server
+- [Windows App Development CLI (winapp CLI)](../../dev-tools/winapp-cli/index.md) — full reference for adding Windows features to any framework
+- [Windows App SDK documentation](../index.md)
 - [Windows AI APIs](/windows/ai/) — on-device AI features available once you have package identity