Gleb Khmyznikov a87f5b07a9 Advanced Paste additional customizations and PhiSilica provider (#46727) ...

## Summary

Adds an on-device **Phi Silica (Windows AI) paste provider** to Advanced
Paste and richer
per-action customization, plus the **package-identity plumbing** that
lets the unpackaged
Advanced Paste app use Windows AI APIs.

> Note: this supersedes the earlier "self-contained MSIX package
installed/registered by the
> WiX installer" approach. Advanced Paste is **not** packaged or
installed as a standalone
> MSIX. It keeps shipping as the existing unpackaged, self-contained
WinUI 3 executable in
> `WinUI3Apps/` and acquires **package identity at runtime from the
existing PowerToys sparse
> package** — there are no installer or ESRP MSIX repack changes.

## Advanced Paste features

- **New Phi Silica paste provider**
(`CustomActions/PhiSilicaPasteProvider.cs`): an on-device
AI provider backed by the Windows AI Phi Silica language model — no
cloud endpoint or API
key required. Registered as a new `AIServiceType` via
`PasteAIProviderFactory` /
  `AIServiceTypeRegistry`.
- **Additional custom actions** (`AdvancedPasteAdditionalAction`):
user-defined actions with
their own prompt, system prompt, AI provider, and shortcut — plus an
optional "coaching"
prompt/system-prompt/provider/shortcut and shortcut-conflict detection.
- **Built-in default prompts** (`AdvancedPasteDefaultPrompts`) and
updates to
  `AdvancedPasteCustomAction`, `PasteFormat(s)`, `OptionsViewModel`, and
`PasteFormatExecutor` to support per-action provider selection and
system prompts.
- **Settings UI** (`AdvancedPastePage.xaml`/`.xaml.cs`,
`Resources.resw`): configure the
Phi Silica provider, choose a provider per action, edit system/coaching
prompts, and a
Phi Silica availability/readiness experience — Settings queries the
Advanced Paste
executable via `--check-phi-silica`, and a **"Download model"** action
triggers
  `--prepare-phi-silica` to fetch the model and then re-probes.

## Package identity for Windows AI (replaces the MSIX-install approach)

- Phi Silica is a **Limited Access Feature (LAF)** that can only be
unlocked by a process
with a registered **package identity**. Advanced Paste runs unpackaged,
so it obtains
identity from the existing **`Microsoft.PowerToys.SparseApp`** sparse
package
(`src/PackageIdentity/`): a new `<Application
Id="PowerToys.AdvancedPasteUI">` entry in
`AppxManifest.xml` maps it to `PowerToys.AdvancedPaste.exe`, with
matching updates to
  `BuildSparsePackage.ps1`.
- **LAF unlock** at runtime via `PhiSilicaLafHelper.cs`. The
token/attestation are baked at
build time by the `GeneratePhiSilicaLafCredentials` MSBuild target into
`PhiSilicaLafCredentials.g.cs` — local **dev defaults** live in
`src/PhiSilicaLaf.props`
(imported from `Directory.Build.props`) and the **production secret** is
injected via
  `/p:` in the release pipeline.
- New **`AdvancedPaste.dev.manifest` / `AdvancedPaste.prod.manifest`**
application manifests
(selected by `CIBuild`) declaring full-trust and the system AI models
capability.

## Build & pipeline

- **Windows App SDK** moved to the coherent **stable `2.2.0`** line and
**added
`Microsoft.WindowsAppSDK.AI` `2.2.3`** (the Phi Silica APIs). Foundation
`2.1.0` carries the
sparse-identity PRI fix, and the stable AI build matches the OS Windows
AI runtime.
- **Independent versioning** for Advanced Paste
(`src/modules/AdvancedPaste/custom.props`,
XES one-store versioning, `AdvancedPasteVersion`). A
`steps-setup-versioning.yml` step is
added for Advanced Paste in `job-build-project.yml`, ordered **before**
CmdPal to avoid a
  version-collision installer failure (WIX0103).
- `release.yml` passes `PhiSilicaLafToken`/`PhiSilicaLafAttestation`
into the main build;
  spell-check allow-list/patterns updated.
- Removed now-unneeded dependencies: the
`Microsoft.Windows.Compatibility` reference and the
  `Common.UI` "force matching DLL versions" hack.
  
<img width="1073" height="716" alt="image"
src="https://github.com/user-attachments/assets/9364d86a-c0d1-4a08-a669-d98cbcb4b140"
/>
<img width="1038" height="308" alt="image"
src="https://github.com/user-attachments/assets/00eef1dd-b407-4841-bd64-f54f8a145c46"
/>
<img width="194" height="405" alt="image"
src="https://github.com/user-attachments/assets/d2f9c5bb-2507-4112-b3e0-56da681f88ea"
/>
<img width="489" height="453" alt="image"
src="https://github.com/user-attachments/assets/811d1afd-9993-48be-824e-82bb56c5ceca"
/>

[Video clip
internal](https://onedrive.cloud.microsoft/✌️/a@9n6nl3fp/S/cQpvAHrL5M9ZR6eUawztyfyBEgUCwCF-aKg9TbKyyGWP4c0KMA)

[Build
internal](https://microsoft.visualstudio.com/Dart/_build/results?buildId=149920754&view=artifacts&pathAsName=false&type=publishedArtifacts)

---------

Co-authored-by: Niels Laute <niels.laute@live.nl>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

2026-08-08 07:43:59 +02:00

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