winapp-signing
Create and manage code signing certificates for Windows apps and MSIX packages. Use when generating a certificate, signing a Windows app or installer, or fixing certificate trust issues.
3209 skills
Create and manage code signing certificates for Windows apps and MSIX packages. Use when generating a certificate, signing a Windows app or installer, or fixing certificate trust issues.
Set up a Windows app project for MSIX packaging, Windows SDK access, or Windows API usage, or scaffold a brand-new WinUI 3 app. Use when creating or scaffolding a new WinUI app from scratch, adding Windows support to an Electron, .NET, C++, Rust, Flutter, or Tauri project, or restoring SDK packages after cloning.
Package a Windows app as an MSIX installer for distribution or testing. Use when creating a Windows installer, packaging an Electron/Flutter/.NET/Rust/C++/Tauri app for Windows, building an MSIX, distributing a desktop app, packaging a console app or CLI tool, or adding MSIX packaging to a build script or CI/CD pipeline.
Package and sign .NET MAUI Windows apps with winapp, resolving the resizetizer manifest dependency. Use when packaging or signing a .NET MAUI Windows app, building a MAUI MSIX or signed unpackaged build in CI, or fixing 'manifest contains unresolved placeholders ($placeholder$)' errors from winapp package.
Create and edit Windows app manifest files (Package.appxmanifest or appxmanifest.xml) that define app identity, capabilities, and visual assets, or generate new assets from existing images. Use when creating a Windows app manifest for any app type (GUI, console, CLI tool, service), adding Windows capabilities, generating new app icons and assets, or adding execution aliases, file associations, protocol handlers, or other app extensions.
Enable Windows package identity for desktop apps to access Windows APIs like push notifications, background tasks, share target, and startup tasks. Use when adding Windows notifications, background tasks, or other identity-requiring Windows features to a desktop app.
Framework-specific Windows development guidance for Electron, .NET (WPF, WinForms), C++, Rust, Flutter, and Tauri. Use when packaging or adding Windows features to an Electron app, .NET desktop app, Flutter app, Tauri app, Rust app, or C++ app.
Agent-first search of WinUI 3 controls and samples for a working code example. Built primarily for AI coding agents to pull real, compiling WinUI markup into the editor instead of inventing it, and equally usable by hand. Use when building a WinUI 3 UI and you need to discover which control fits an intent (e.g. 'tabbed layout', 'a card with an image and title', 'swipeable list rows') and get a real code example from the WinUI Gallery or the Windows Community Toolkit (Gallery/Toolkit return XAML and/or C#). The microsoft-ui-reactor ReactorGallery is an opt-in source (C#-only declarative WinUI)
Agent-first search and inspection of the Windows/WinRT API surface (types, members, enums, namespaces) available to a project, resolved from its referenced .winmd/.dll metadata — or, outside any project, from the machine-wide Windows SDK. Built primarily for AI coding agents to ground code generation in real metadata instead of guessing, and equally usable by hand. Use when an AI agent or developer needs to discover an API, list a type's properties/events/methods, validate that a property exists before writing XAML/code, enumerate an enum's values, explore the namespaces and packages a project
Independent, multi-model review of a design or spec **before** any code is written, for the microsoft/winappcli repo. Activate when a contributor asks to "review this spec", "review my design", "review this design doc", "validate this approach", "should we build this", "spec review", "design review", or "feature review". Fans out parallel sub-agents — each doing its OWN research against the real codebase and ecosystem rather than trusting the spec — covering necessity & scope, approach & alternatives, feasibility vs reality, risks & unknowns, DX & user impact, and a different-model-family cros
Multi-dimensional review of a PR or feature branch in the microsoft/winappcli repo. Activate when a contributor asks to "review my PR", "review my changes", "vet my branch before pushing", "do a full review", "PR review", "review this feature", or similar. Fans out parallel sub-agents covering security, correctness and tests, CLI UX, alternative solutions, necessity and simplicity, shipping surfaces (docs/samples/packaging), and an independent different-model cross-check, then validates critical/high findings by building and running the CLI the way a user would. Applies a mandatory gut check t
Migrate WPF applications to WinUI 3 — namespace replacement (System.Windows → Microsoft.UI.Xaml), control mapping (DataGrid→ListView, WrapPanel→ItemsRepeater, TabControl→TabView), threading (Dispatcher→DispatcherQueue), imaging (System.Drawing→BitmapImage), MVVM conversion to CommunityToolkit.Mvvm, and DynamicResource→ThemeResource. Use when converting WPF code, replacing WPF namespaces, or fixing migration build errors.
Automated UI testing for Windows desktop apps — generate a batch test script with the `winapp ui` UI Automation harness, run all tests in one pass, read results. Covers element assertions, interactions, value checking (TextBox, ComboBox, ToggleSwitch), keyboard shortcuts and typing (send-keys), hover, drag-and-drop, touch and pen input, file pickers, flyouts, dialogs, persistence, accessibility audits, and screenshot/video capture. Works on any Windows app (Win32, WPF, WinForms, WinUI 3, packaged or unpackaged).
Install and verify the prerequisites the win-dev-skills WinUI 3 toolchain depends on — .NET SDK 8.0.100+, WinApp CLI 0.6+, and Developer Mode. Use only when the user explicitly asks to set up or repair the toolchain. Do not invoke automatically when another skill reports a missing prerequisite; tell the user what is missing and ask them to invoke this skill.
Analyze the current or a recent agent session (GitHub Copilot CLI or Claude Code) and generate a diagnostic report. Use only when the user explicitly asks for session feedback, agent debugging, or a review of what happened during a build session. Do not inspect session data automatically.
MSIX packaging, code signing, and distribution for WinUI 3 apps — build for release, certificate generation (winapp cert generate), certificate trust, code signing (winapp sign), self-contained deployment, CI/CD with GitHub Actions, and Microsoft Store submission. Use when preparing for release, creating MSIX installers, managing certificates, setting up CI/CD packaging, or publishing to the Microsoft Store.
Build and run workflow for WinUI 3 apps with WinApp CLI 0.6+ — project creation with winapp new, project-mode winapp run, BuildAndRun.ps1 analyzer integration, crash diagnosis, and prerequisites. Use when creating, building, running, or fixing build errors in a WinUI 3 project.
Use when designing, reviewing, or fixing WinUI 3: sample and control discovery with winapp find-ui, layout planning, control choice, Fluent Design alignment, Light/Dark/High Contrast theming, typography, spacing, brushes, accessibility, and XAML data-binding design. Load before authoring new XAML, reviewing UI PRs, migrating desktop UI to WinUI, or choosing between WinUI controls/patterns. Also use when asked to search WinUI samples, find a WinUI Gallery or Community Toolkit example, or find a control that does something.
Code quality review for WinUI 3 apps — MVVM compliance, x:Bind correctness, accessibility, theming, security, and performance. Use before committing to catch issues that the compiler and UI tests won't find.
Multi-dimensional review of a PR or feature branch in microsoft/win-dev-skills. Activate on "review my PR / changes / branch", "vet before pushing", "PR review", "is this ready to merge". Fans out parallel sub-agents over skill content, the skill-vs-tool boundary (solution hierarchy), tool correctness, payload/provenance/tests, docs & manifest sync, plus a multi-model cross-check. Reports findings to stdout. Does NOT apply fixes.
Solve a user-specified web task code-as-action style by driving a local Playwright browser through one bash command at a time, saving screenshots and an action log into `final_runs/run_<id>/`, and visually verifying the result. Use when the user asks to automate a web task (search, filter, form-fill, multi-step flow, data extraction) and wants reusable scripts plus screenshot evidence rather than a one-shot answer.
Use when writing or reviewing WebUI code. Load the reference for the application's installed WebUI version.
Build interactive WebUI apps with compiled-template hydration, template syntax, component patterns, and CLI usage.