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Ben Thomas c79f886dc3 .NET: Align Foundry sample environment variables and credentials. (#6422)
* dotnet: refresh Foundry sample guidance

Carry forward the still-relevant sample guidance and Foundry-specific documentation fixes from the old stacked sample migration work, adapted to the current repo layout and policy.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* dotnet: rename Foundry sample env vars

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* dotnet: remove persistent provider sample

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* dotnet: drop SAMPLE_GUIDELINES.md from this PR

Defer the guidelines doc and its cross-link to a follow-on PR to avoid broken-link failures in CI.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* dotnet: add DefaultAzureCredential warning to remaining samples

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* dotnet: address PR review feedback

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
c79f886dc3 · 2026-06-11 17:26:00 +00:00
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Class-Based Agent Skills Sample

This sample demonstrates how to define Agent Skills as C# classes using AgentClassSkill with attributes for automatic script and resource discovery.

What it demonstrates

  • Creating skills as classes that extend AgentClassSkill
  • Using [AgentSkillResource] on properties to define resources
  • Using [AgentSkillScript] on methods to define scripts
  • Automatic discovery (no need to override Resources/Scripts)
  • Using the AgentSkillsProvider constructor with class-based skills
  • Overriding SerializerOptions for Native AOT compatibility

Skills Included

unit-converter (class-based)

A UnitConverterSkill class that converts between common units. Defined in Program.cs:

  • conversion-table — Static resource with factor table
  • convert — Script that performs value × factor conversion

Running the Sample

Prerequisites

  • .NET 10.0 SDK
  • Azure OpenAI endpoint with a deployed model

Setup

export AZURE_OPENAI_ENDPOINT="https://your-endpoint.openai.azure.com/"
export AZURE_OPENAI_DEPLOYMENT_NAME="gpt-5.4-mini"

Run

dotnet run

Expected Output

Converting units with class-based skills
------------------------------------------------------------
Agent: Here are your conversions:

1. **26.2 miles → 42.16 km** (a marathon distance)
2. **75 kg → 165.35 lbs**