PowerShell wrapper Phase 1: cmdlet generation for the first 15 Graph modules

[Joywambui-maina]

Changes proposed in this pull request

• Add PowerShellWrapper as a kiota generate option (-l PowerShellWrapper), routed to
  its own generation service instead of the CodeDOM/refiner/writer pipeline, the same
  shape as plugin generation.
• Build cmdlet nouns from the URL path, singularized word by word, instead of from the
  operationId.
• Reproduce the published SDK's hand-tuned names as checked-in data
  (NamingOverrides.cs, 3 entries, each citing the AutoRest directive it mirrors), and
  skip operations the published SDK deliberately does not ship.
• Add 51 naming tests whose expected values are published Microsoft.Graph cmdlet names.
• Document the naming algorithm rule by rule, with a shipping cmdlet as evidence for each
  rule, in src/Kiota.Builder/PowerShellWrapper/README.md, including known gaps.

Why

Generated cmdlet names previously leaked raw plural path segments: Get-MgUsersMessages
instead of Get-MgUserMessage, Get-MgSolutionsBookingBusinesses instead of
Get-MgBookingBusiness. The nouns were taken from operationIds, which carry whatever
plurality the spec author chose. The project requires generated cmdlets to keep the exact
names Microsoft.Graph customers already use.

Deriving the noun from the URL path makes naming deterministic (same OpenAPI input, same
cmdlet name) and gives naming and request routing one source of truth. The published
names are not fully algorithmic: a few come from hand-written AutoRest directives in the
SDK's module configs, so those cases live here as reviewable data with a cited source
each, and the generator itself stays generic.

Validation

dotnet test tests/Kiota.Builder.Tests/Kiota.Builder.Tests.csproj --filter "FullyQualifiedName~PowerShellWrapper"

51/51 tests passed. CI runs the same suite on this PR.

All 15 modules regenerated from their specs, then every generated cmdlet's HTTP method
and URL joined against MgCommandMetadata.json (the inventory behind
Find-MgGraphCommand): 66 of 66 cmdlets carry the exact published name, previously 30
of 66. Find-MgGraphCommand returns the same command names this generator now emits.

All 15 modules compiled, imported, and exercised against a live tenant: list reads,
item-by-id reads through the parameter-set dispatcher, -Filter query binding, write
cmdlets, and errors surfacing as error records from the correct cmdlet.

[github-code-quality]

Code Coverage Overview

Languages: C#

C# / code-coverage/dotnet

The overall coverage in commit c439641 in the joy/wrapper-generato... branch is 70%. Coverage data for the feature/PS-generator branch is not yet available.

Show a code coverage summary of the most covered files.

File	feature/PS-generator	joy/wrapper-generato... c439641	+/-
/home/runner/wo...guageRefiner.cs	—	98%	—
/home/runner/wo...criptRefiner.cs	—	98%	—
/home/runner/wo...MethodWriter.cs	—	97%	—
/home/runner/wo...MethodWriter.cs	—	96%	—
/home/runner/wo...MethodWriter.cs	—	96%	—
/home/runner/wo...MethodWriter.cs	—	95%	—
/home/runner/wo...rs/GoRefiner.cs	—	93%	—
/home/runner/wo...KiotaBuilder.cs	—	90%	—
/home/runner/wo...ationService.cs	—	89%	—
/home/runner/wo...xGenerator.g.cs	—	73%	—

---

_{Updated July 25, 2026 03:53 UTC}

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