Work on C# and .NET-adjacent mixed-reality solutions around HoloLens, MRTK, OpenXR, Azure services, and integration boundaries where .NET participates in the stack. USE FOR: building or integrating mixed-reality solutions with C#; working on HoloLens, MRTK, Azure mixed-reality services, or OpenXR-related code; reviewing how .NET services. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run
SkillScore86Maintained
Automatic
◆Coding pack
Last verified 8/19/2026
What it changes
Passed 19 of 22 test cases with the skill, and 18 of 22 without it.
Without skill82%
With skill86%
Checks it passed that the model alone missed
The response designates testing on target physical hardware or official device emulators as a mandatory sign-off gate over editor playback.
1 fixed18 passed either way3 still failing0 broke
Pass-rate lift
+5 pp
Tokens
-4%
Agent turns
0%
Response time
-21%
Model gemini-3.6-flashMeasured 8/19/2026v119 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
A test case the skill fixed. Same model, same prompt, with and without the skill.
Prompt
Our team is reviewing our mixed-reality project structure where C# scripts handle spatial anchors and eye tracking while communicating with ASP.NET Core microservices. Can you perform an architectural audit report of this system design, detailing the recommended separation of responsibilities and testing recommendations?
What was checked, without and with the skill
Checked
Without skill
With skill
The response mandates isolating spatial anchors and hardware sensor handling from backend ASP.NET Core microservice communications.
Passed
Passed
The response designates testing on target physical hardware or official device emulators as a mandatory sign-off gate over editor playback.
Missed
Passed
case-03 · gemini-3.6-flash · 8/19/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md33 lines3 files
Mixed Reality with .NET
Trigger On
building or integrating mixed-reality solutions with C#
working on HoloLens, MRTK, Azure mixed-reality services, or OpenXR-related code
reviewing how .NET services support a mixed-reality client
Workflow
Acknowledge that much of Microsoft mixed-reality guidance is Unity-centered even when the implementation language is C#; do not pretend it is a standard .NET desktop stack.
Separate engine-side concerns, device capability concerns, and backend service integration so the system boundary stays understandable.
Use MRTK and OpenXR guidance intentionally, and verify current toolkit status before choosing a package or template path. See references/patterns.md for established architecture patterns.
Treat performance, input, and spatial UX as core constraints, not polish items.
When .NET mostly lives on the backend for a mixed-reality product, route that backend work through the relevant ASP.NET Core, SignalR, or Azure skill instead of overloading this one.
Validate with the actual device or emulator path whenever possible because editor-only success is not enough.
References
references/patterns.md - MRTK service architecture, OpenXR feature plugins, input action patterns, spatial awareness observers, and cross-cutting patterns for dependency injection, object pooling, and graceful degradation.
references/examples.md - Common HoloLens scenarios including spatial anchors, hand menus, spatial mapping physics, eye tracking, remote rendering, voice commands, QR code tracking, and shared multi-user experiences.
Deliver
clear boundaries between device code and backend services
mixed-reality guidance grounded in current Microsoft tooling
realistic validation expectations for MR scenarios
Validate
the chosen toolkit path is current enough for the project
device-specific constraints are explicit
backend and client responsibilities are not blurred
Write, run, or repair .NET tests that use MSTest. Use when a repo uses `MSTest.Sdk`, `MSTest`, `[TestClass]`, `[TestMethod]`, `DataRow`, or Microsoft.Testing.Platform-based MSTest execution. USE FOR: the repo uses MSTest; you need to add, run, debug, or repair MSTest tests; the repo is moving between VSTest and Microsoft.Testing.Platform. DO NOT USE FOR: xUnit projects; TUnit projects. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation