[SergeyMenshykh]

Motivation

Prepare for A2A protocol support for Foundry Hosted Agents without publishing a NuGet package yet.

Description

• Add the empty Microsoft.Agents.AI.Foundry.Hosting.A2A project targeting .NET 8, 9, and 10.
• Register it in the .NET solution and source-and-tests solution filter.
• Set IsPackable=false after the shared package import, following the existing Mem0 project pattern.
• No A2A implementation or new runtime dependencies are included.

AI assistance: Copilot assisted with scaffolding, review, and this PR description.

Related Issue

Related work: Azure/azure-sdk-for-net#64283

[Copilot]

🟢 Approval recommended

No active review issues are recorded for the non-packable A2A project scaffold and its solution registrations.

No open issues 🎉

What changed in this PR

Scaffolds a .NET project for future A2A support in Foundry Hosted Agents, without adding protocol implementation, runtime dependencies, or a publishable NuGet package.

Changes:

• Adds the empty Microsoft.Agents.AI.Foundry.Hosting.A2A project targeting .NET 8, 9, and 10.
• Disables packing after importing shared package settings.
• Registers the project in the .NET solution and source-and-tests solution filter.

File	Description
dotnet/​src/​Microsoft.Agents.AI.Foundry.Hosting.A2A/​Microsoft.Agents.AI.Foundry.Hosting.A2A.csproj	Adds the non-packable A2A project scaffold and package metadata.
dotnet/​agent-framework-src-and-tests.slnf	Includes the project in the source-and-tests filter.
dotnet/​agent-framework-dotnet.slnx	Registers the project in the .NET solution.

_{Review effort: Balanced}

[github-actions]

MAF Automated Review — Iteration 1

Result: No findings
Scope: full PR (2 commit(s)): ed7e52ae5fd0, 7a10e7355a5c
Model: gpt-5.6-sol

Overview

The PR adds an empty .NET 8/9/10 project and registers it in both the main solution and source-and-tests filter. The post-import IsPackable=false override prevents accidental publication, while inherited analyzers, warnings-as-errors, and multi-framework solution builds provide appropriate guardrails for this scaffold. No runtime code, dependencies, public API, trust boundary, or mutable state is introduced, and no publishable defect was established.

Reviewed the supplied pull-request change set across correctness, security/reliability, architecture, and failure behavior.
No publishable findings remained after source verification for this scope.