ivy-deploy-to-desktop

name: ivy-deploy-to-desktop description: > Deploy an Ivy project as a standalone desktop application. Use when the user asks to publish, deploy, package, or export their Ivy app as a desktop app, native app, executable, or .exe. Scaffolds a desktop wrapper project using Ivy.Desktop, generates a Program.cs, publishes with dotnet, and copies the executable to the user's desktop. allowed-tools: Bash(dotnet:) Bash(ivy:) Read Write Edit Glob Grep effort: high disable-model-invocation: true

Deploy an Ivy project as a standalone desktop application using Ivy.Desktop.

Pre-flight: Read Learnings

If the file .ivy/learnings/ivy-deploy-to-desktop.md exists in the project directory, read it first and apply any lessons learned from previous runs of this skill.

Reference Files

Read before implementing:

references/AGENTS.md -- Ivy framework API reference (widgets, hooks, layouts, inputs, colors)

Workflow

Verify the project -- Confirm the working directory is a valid Ivy project and that it builds successfully with dotnet build. If it does not build, stop and ask the user to fix build errors first.
Determine the project namespace -- Find the root namespace from the .csproj file or existing source files.
Scaffold the desktop project -- Create a desktop wrapper project under .ivy/publish/[Namespace].Desktop/. This is a separate .NET project that references the main Ivy project and adds the Ivy.Desktop package.
Generate Program.cs -- Write a Program.cs for the desktop wrapper following the rules in the generation guide below.
Publish the application -- Run dotnet publish -c Release on the desktop project to produce a self-contained executable.
Copy to desktop -- Place the published executable on the user's desktop so it is ready to run.

Step 4: Generating Program.cs

Write a Program.cs for the desktop project ([Namespace].Desktop) at .ivy/publish/[Namespace].Desktop/Program.cs.

Before generating, read the original web project's Program.cs and list the files in the project's Apps/ directory.

The generated Program.cs must:

Use Ivy and Ivy.Desktop namespaces.
Create a new Server(new ServerArgs { Silent = true }).
Assembly references -- For AddAppsFromAssembly and AddConnectionsFromAssembly, you MUST pass an explicit assembly reference because the entry assembly in the desktop project is different from the main app assembly. Find a class from the original project (e.g., an [App] class) and use typeof(ThatClass).Assembly as the argument:
```
var targetAssembly = typeof(MyNamespace.Apps.SomeAppClass).Assembly;
server.AddAppsFromAssembly(targetAssembly);
server.AddConnectionsFromAssembly(targetAssembly);
```
Preserve any other service registrations from the original (e.g. server.UseCulture(...), any server.Add* calls).
Chrome handling:
- Count the number of apps in the Apps/ directory.
- If there are multiple apps, preserve the chrome configuration (e.g. UseAppShell) in the desktop version so users can navigate between apps via the sidebar.
- If there is only a single app, do NOT add UseAppShell. Use server.UseDefaultApp(typeof(TheApp)) instead. Single-app desktop applications should not have a sidebar.
Window sizing -- Choose appropriate .Size(width, height) values for the DesktopWindow based on the apps found in Apps/:
- Multi-app projects with chrome/sidebar: 1280, 800 or larger
- Single-app dashboards or data-heavy apps: 1200, 800
- Single-app form/tool apps (calculators, converters, simple utilities): 800, 600
- Single-app narrow/focused apps (chat, single-column): 500, 700
- When unsure, default to 1024, 768

Replace the web server startup with:

return new DesktopWindow(server)
    .Title("[AppTitle]")
    .Size(WIDTH, HEIGHT)  // Use the dimensions chosen in step 6
    .Run();

Do NOT include any web host building, app.Run(), builder.Build(), Kestrel, or HTTP pipeline code.

CRITICAL: Write ONLY to .ivy/publish/[Namespace].Desktop/Program.cs. Do NOT create any files in the main project directory. Do NOT create a .Desktop subfolder in the main project. The desktop project lives under .ivy/publish/[Namespace].Desktop/ -- all desktop files must go there.

Output ONLY raw C# code, no markdown fences or explanation.

Troubleshooting

If the publish step fails:

Ensure the project builds successfully with dotnet build.
Check that the Ivy.Desktop NuGet package is available.
Verify you have the .NET 10 SDK installed.
If the error mentions "Ambiguous project name", create a Directory.Build.props in the desktop project directory with content <Project></Project> to isolate the project from the parent directory tree.

Recovery Steps

Diagnose using the troubleshooting steps above to identify the root cause.
After fixing the underlying issue, choose ONE of these approaches:

Option A: Retry from scratch (recommended for transient failures like NuGet package issues or temporary build failures) -- re-run the full workflow from step 1.

Option B: Manual desktop publish (recommended for persistent workflow failures):
- Run dotnet publish -c Release -r <rid> (e.g., -r win-x64, -r osx-arm64, -r linux-x64)
- Locate the published executable in bin/Release/net10.0/{rid}/publish/
- Copy the executable to the user's desktop (see "Desktop Copy" below)
Use ivy docs to find deployment patterns: "How do I publish an Ivy app as a desktop application?"
Do NOT skip the desktop copy step -- the executable must be accessible on the desktop for the user.

Desktop Copy

If you recover manually, you MUST copy the published executable to the user's desktop:

Publish location: bin/Release/net10.0/{rid}/publish/
Desktop folder: Use the system desktop path (e.g., C:\Users\{user}\Desktop\)
Copy the .exe file (Windows) or the binary (macOS/Linux) to the desktop

Completion

When the publish succeeds, inform the user:

The application name
The output location (on their desktop)
That it is ready to run

Post-run: Evaluate and Improve

After completing the task:

Evaluate: Did the build succeed? Were there compilation errors, unexpected behavior, or manual corrections needed during this run?
Update learnings: If anything required correction or was surprising, append a concise entry to .ivy/learnings/ivy-deploy-to-desktop.md (create the file and .ivy/learnings/ directory if they don't exist). Each entry should note: the date, what went wrong, why, and what to do differently next time.
Skip if clean: If everything succeeded without issues, do not update the learnings file.