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[dotnet-ai] Agent stack (agentic-workflow + copilot-sdk-integration)#244

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[dotnet-ai] Agent stack (agentic-workflow + copilot-sdk-integration)#244
luisquintanilla wants to merge 2 commits intodotnet:mainfrom
luisquintanilla:dotnet-ai/agent-stack

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@luisquintanilla luisquintanilla commented Mar 5, 2026

Fixes #232
Part of #225

Dependencies

Merge order: This PR should be merged after:

Summary

Adds two agent stack skills that cover the Runtime and Harness layers of the .NET AI stack:

  • agentic-workflow Microsoft Agent Framework (MAF): AIAgent, AgentSession, AsAIFunction for multi-agent composition, durable agents with AgentSessionManager, and A2A (Agent-to-Agent) protocol
  • copilot-sdk-integration GitHub Copilot SDK three dimensions: LLM backend (zero-config auth, BYOK), agent harness (sessions, MCP, safe outputs), platform extensions. Includes the Bridge Pattern (prototype with CopilotClient deploy with Azure via AsAIAgent())

Changes

File Description
plugins/dotnet-ai/skills/agentic-workflow/SKILL.md MAF AIAgent lifecycle, AgentSession, AsAIFunction, durable agents, A2A protocol
plugins/dotnet-ai/skills/copilot-sdk-integration/SKILL.md Three integration paths, Bridge Pattern, BYOK table, known limitations
tests/dotnet-ai/agentic-workflow/eval.yaml Eval: multi-step agent with tools scenario
tests/dotnet-ai/copilot-sdk-integration/eval.yaml Eval: Copilot SDK agent + production rejection scenarios

Key Packages

  • Microsoft.Agents.AI (MAF, prerelease)
  • GitHub.Copilot.SDK (Copilot SDK, preview)
  • Microsoft.Agents.AI.GitHub.Copilot (bridge package)

Validation

  • Both SKILL.md files have valid YAML frontmatter
  • agentic-workflow covers AIAgent, AgentSession, AsAIFunction, durable agents, A2A
  • copilot-sdk-integration covers three paths + Bridge Pattern + limitations
  • Both eval.yaml files have scenarios

Adds two agent stack skills: agentic-workflow (MAF AIAgent, AgentSession,
AsAIFunction, durable agents, A2A) and copilot-sdk-integration (three
paths: LLM backend, agent harness, platform extensions, Bridge Pattern).

Fixes dotnet#232
Part of dotnet#225

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
.NET 10 is the current LTS (released Nov 2025). .NET 8 reaches
end-of-support Nov 2026.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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[dotnet-ai] Agent stack (agentic-workflow + copilot-sdk-integration)

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