Niels Laute 32b4080007
[CmdPal Extension Template] Adding skills and instructions (#46683)
## Summary of the Pull Request

Adds Copilot instructions and skills to the CmdPal extension template so
that when developers create a new extension via "Create a new
extension", the generated project includes AI-assisted development
guidance out of the box.

I verified the skills on my own extension:

<img
src="https://github.com/user-attachments/assets/24bddefd-f38a-4faa-aaf0-686bcb891241">

## PR Checklist

- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

## Detailed Description of the Pull Request / Additional comments

### Problem
When developers create a new Command Palette extension, the generated
project contains only source code and build configuration — no
AI-assisted development guidance. This means Copilot and other AI tools
have no context about CmdPal extension APIs, patterns, or publishing
workflows.

### Solution
Added **2 instruction files** and **5 skills** (11 markdown files total)
to the extension template at
`src/modules/cmdpal/ExtensionTemplate/TemplateCmdPalExtension/.github/`:

**Instructions:**
| File | Purpose |
|------|---------|
| `copilot-instructions.md` | Top-level project overview: structure,
conventions, build/deploy workflow, skill inventory |
| `instructions/cmdpal-extension.instructions.md` | Comprehensive
353-line API reference covering extension architecture, all page types,
content types, commands/results, items, icons, dynamic updates, and
debugging |

**Skills:**
| Skill | Description | Why |
|-------|-------------|-----|
| `publish-extension` | Microsoft Store (MSIX) + WinGet (EXE) + GitHub
Actions automation | Every extension eventually needs distribution |
| `add-adaptive-card-form` | Adaptive Cards Designer workflow + template
JSON patterns | Forms are the primary way to collect user input |
| `add-extension-settings` | ToggleSetting / TextSetting /
ChoiceSetSetting + persistence | 12 of 20 built-in extensions use
settings |
| `add-dock-band` | Single/multi-button bands, WrappedDockItem,
live-updating | Enables persistent toolbar widgets |
| `add-fallback-commands` | FallbackCommands() + DynamicListPage +
CancellationToken | 14 of 20 built-in extensions use fallback commands |

### Code changes
- **`ExtensionTemplateService.cs`** — Added `.md` to
`_copyAsIsTemplateExtensions` so markdown files are properly handled
during template extraction
- **`template.zip`** — Regenerated to include the new `.github/`
directory (19KB → 44KB)
- **`.github/actions/spell-check/expect.txt`** — Added 17 Inno Setup
constants/flags, placeholder identifiers, and technical tokens from the
new skill files to the spell-check allowlist

### Content sources
- Instructions derived from the **SamplePagesExtension** (all 20+ sample
pages), the **CmdPal extension SDK** (IDL + toolkit base classes), and
**official MS Learn documentation**
- Publishing skill based on the [Publish Command Palette
extensions](https://learn.microsoft.com/windows/powertoys/command-palette/publishing-your-extension)
docs
- Patterns verified against all 20 real CmdPal extensions in the repo

## Validation Steps Performed

1.  All 7 `ExtensionTemplateServiceTests` pass:
   - `CreateExtension_BuildsExtensionFromTemplateArchive`
   - `CopyTemplateFile_RewritesTextFiles`
   - `CopyTemplateFile_CopiesUnchangedTextFilesVerbatim`
   - `CopyTemplateFile_CopiesBinaryFilesWithoutRewritingContents`
   - `TemplateFileHandling_ThrowsForUnknownExtension`
- `TemplateExtensionCategories_AreDisjointAndCoverTemplateZip` —
validates `.md` is in the extension lists
- `TemplateZipFiles_AllUseKnownHandling` — validates all zip entries
have known handling
2.  Verified `template.zip` contains all 31 entries (20 original + 11
new `.md` files)
3.  Verified directory structure is preserved correctly in the zip
4.  Added 17 flagged tokens to `expect.txt` to resolve `check-spelling`
CI failures — all are valid technical terms (Inno Setup constants/flags,
domain names, Windows environment variables, code example placeholders)
that appear inside code blocks in the skill documentation
5.  `check-spelling` CI passes with 0 new misspelled words found on the
latest commit

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: niels9001 <9866362+niels9001@users.noreply.github.com>
2026-04-03 21:47:10 +00:00
..