.NET: Simplify A2A client-server sample - #7891
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Pull request overview
Simplifies the A2A sample into a focused Foundry-backed policy-agent flow.
Changes:
- Replaces the multi-agent setup with one policy agent.
- Simplifies client discovery, invocation, configuration, and documentation.
- Updates the JSON-RPC request and retains both A2A bindings.
Reviewed changes
Copilot reviewed 12 out of 18 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
README.md |
Streamlines end-to-end instructions. |
A2AServer/README.md |
Adds server-specific guidance. |
A2AServer/Program.cs |
Hosts the Foundry policy agent. |
A2AServer/PolicyAgentCard.cs |
Defines policy-agent discovery metadata. |
A2AServer/Models/InvoiceQuery.cs |
Removes invoice mock tooling. |
A2AServer/HostAgentFactory.cs |
Removes multi-provider agent factory. |
A2AServer/A2AServer.http |
Updates policy-agent requests. |
A2AServer/A2AServer.csproj |
Removes unused dependencies. |
A2AClient/README.md |
Documents the simplified client. |
A2AClient/Program.cs |
Directly discovers and invokes the agent. |
A2AClient/HostClientAgent.cs |
Removes coordinating host agent. |
A2AClient/A2AClient.csproj |
Removes obsolete dependencies. |
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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 9bde6d5d-8515-4ce3-abff-1e30a0b25f45
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MAF Automated Review — Iteration 1
Result: Findings reported
Scope: full PR (3 commit(s)): 5c9e0b1b7193, 2e51389ecbcf, 579e619fb06e
Model: gpt-5.6-sol
Overview
The review found 1 verified inline finding(s).
Reviewed the supplied pull-request change set across correctness, security/reliability, architecture, and failure behavior.
1 verified finding remained after source verification (1 medium) across 1 file. Details are attached to the affected lines below.
Affected areas: dotnet/samples/05-end-to-end/A2AClientServer/A2AClient/README.md
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Updated [Microsoft.Agents.AI](https://github.com/microsoft/agent-framework) from 1.19.0 to 1.20.0. <details> <summary>Release notes</summary> _Sourced from [Microsoft.Agents.AI's releases](https://github.com/microsoft/agent-framework/releases)._ ## 1.20.0 ## What's Changed * .NET: Bump AWSSDK.Extensions.Bedrock.MEAI from 4.0.6.10 to 4.0.101.8 by @dependabot[bot] in microsoft/agent-framework#7829 * .NET: Stabilize Foundry recovery tests by @rogerbarreto in microsoft/agent-framework#7817 * .NET: fix: preserve Responses logprobs field by @he-yufeng in microsoft/agent-framework#5860 * .NET: Honor cancellation for Foundry-hosted workflow responses by @rogerbarreto with @Copilot in microsoft/agent-framework#7842 * .NET: Use Responses API for hosted web search in AG-UI by @rogerbarreto with @Copilot in microsoft/agent-framework#7843 * .NET: Bump Aspire.Hosting from 13.1.0 to 13.5.2 by @dependabot[bot] in microsoft/agent-framework#7826 * .NET: Suppress false positive Zip Slip alert by @SergeyMenshykh in microsoft/agent-framework#7858 * .NET: added Mem0Sharp integration for in-memory storage in agent samples. by @jihadkhawaja in microsoft/agent-framework#7792 * .NET: Annotate DevUI aggregator static-analysis false positives by @SergeyMenshykh in microsoft/agent-framework#7864 * .NET: Rename CommunityToolkit.VectorData.CosmosNoSql to AzureCosmosDB by @adamsitnik in microsoft/agent-framework#7878 * .NET: chore: upgrades aspnet openapi dependency by @baywet in microsoft/agent-framework#7870 * .NET: Simplify A2A function tool samples by @SergeyMenshykh in microsoft/agent-framework#7861 * .NET: Bump Azure.AI.AgentServer.Invocations from 1.0.0-beta.5 to 1.0.0-beta.6 by @dependabot[bot] in microsoft/agent-framework#7886 * .NET: docs: updates the contributing information for CFS users by @baywet in microsoft/agent-framework#7869 * Bump CommunityToolkit.VectorData.InMemory from 1.0.0 to 1.0.1 by @dependabot[bot] in microsoft/agent-framework#7888 * .NET: Remove retired OpenAI Assistants integration tests by @rogerbarreto in microsoft/agent-framework#7896 * .NET: Simplify A2A client-server sample by @SergeyMenshykh in microsoft/agent-framework#7891 * Bump Dapr.AI.Microsoft.Extensions from 1.18.4 to 1.18.5 by @dependabot[bot] in microsoft/agent-framework#7889 * .NET: docs/workflow fileinput sample dotnet by @baywet in microsoft/agent-framework#7913 * .NET: Add timeout for wait-for-first-completion by @westey-m in microsoft/agent-framework#7911 * .NET: Fix duplicate Foundry AgentHost port binding by @rogerbarreto in microsoft/agent-framework#7932 * .NET: tests: removes dependency on fluent assersion because of licensing concerns by @baywet in microsoft/agent-framework#7938 * .NET: docs(decisions): resolve duplicate ADR sequence numbers (0016, 0021, 0024) by @jluocsa in microsoft/agent-framework#6046 * .NET: Bump Azure.Core from 1.61.0 to 1.62.0 by @dependabot[bot] in microsoft/agent-framework#7954 * .NET: Improve Cosmos DB Emulator startup reliability by @TheovanKraay in microsoft/agent-framework#3932 * .NET: add public API analyzers by @baywet in microsoft/agent-framework#7935 * .NET: Update version for 1.20.0 release by @SergeyMenshykh in microsoft/agent-framework#7972 ## New Contributors * @madanmishra1223 made their first contribution in microsoft/agent-framework#7705 * @YashvantHange made their first contribution in microsoft/agent-framework#7850 * @jihadkhawaja made their first contribution in microsoft/agent-framework#7792 * @adamsitnik made their first contribution in microsoft/agent-framework#7878 * @baywet made their first contribution in microsoft/agent-framework#7870 * @Namraa310806 made their first contribution in microsoft/agent-framework#7901 * @Sweetteabittersugar made their first contribution in microsoft/agent-framework#7903 * @shoemoney made their first contribution in microsoft/agent-framework#7837 * @jluocsa made their first contribution in microsoft/agent-framework#6046 **Full Changelog**: microsoft/agent-framework@dotnet-1.19.0...dotnet-1.20.0 Commits viewable in [compare view](microsoft/agent-framework@dotnet-1.19.0...dotnet-1.20.0). </details> Updated [Microsoft.Agents.AI.OpenAI](https://github.com/microsoft/agent-framework) from 1.19.0 to 1.20.0. <details> <summary>Release notes</summary> _Sourced from [Microsoft.Agents.AI.OpenAI's releases](https://github.com/microsoft/agent-framework/releases)._ ## 1.20.0 ## What's Changed * .NET: Bump AWSSDK.Extensions.Bedrock.MEAI from 4.0.6.10 to 4.0.101.8 by @dependabot[bot] in microsoft/agent-framework#7829 * .NET: Stabilize Foundry recovery tests by @rogerbarreto in microsoft/agent-framework#7817 * .NET: fix: preserve Responses logprobs field by @he-yufeng in microsoft/agent-framework#5860 * .NET: Honor cancellation for Foundry-hosted workflow responses by @rogerbarreto with @Copilot in microsoft/agent-framework#7842 * .NET: Use Responses API for hosted web search in AG-UI by @rogerbarreto with @Copilot in microsoft/agent-framework#7843 * .NET: Bump Aspire.Hosting from 13.1.0 to 13.5.2 by @dependabot[bot] in microsoft/agent-framework#7826 * .NET: Suppress false positive Zip Slip alert by @SergeyMenshykh in microsoft/agent-framework#7858 * .NET: added Mem0Sharp integration for in-memory storage in agent samples. by @jihadkhawaja in microsoft/agent-framework#7792 * .NET: Annotate DevUI aggregator static-analysis false positives by @SergeyMenshykh in microsoft/agent-framework#7864 * .NET: Rename CommunityToolkit.VectorData.CosmosNoSql to AzureCosmosDB by @adamsitnik in microsoft/agent-framework#7878 * .NET: chore: upgrades aspnet openapi dependency by @baywet in microsoft/agent-framework#7870 * .NET: Simplify A2A function tool samples by @SergeyMenshykh in microsoft/agent-framework#7861 * .NET: Bump Azure.AI.AgentServer.Invocations from 1.0.0-beta.5 to 1.0.0-beta.6 by @dependabot[bot] in microsoft/agent-framework#7886 * .NET: docs: updates the contributing information for CFS users by @baywet in microsoft/agent-framework#7869 * Bump CommunityToolkit.VectorData.InMemory from 1.0.0 to 1.0.1 by @dependabot[bot] in microsoft/agent-framework#7888 * .NET: Remove retired OpenAI Assistants integration tests by @rogerbarreto in microsoft/agent-framework#7896 * .NET: Simplify A2A client-server sample by @SergeyMenshykh in microsoft/agent-framework#7891 * Bump Dapr.AI.Microsoft.Extensions from 1.18.4 to 1.18.5 by @dependabot[bot] in microsoft/agent-framework#7889 * .NET: docs/workflow fileinput sample dotnet by @baywet in microsoft/agent-framework#7913 * .NET: Add timeout for wait-for-first-completion by @westey-m in microsoft/agent-framework#7911 * .NET: Fix duplicate Foundry AgentHost port binding by @rogerbarreto in microsoft/agent-framework#7932 * .NET: tests: removes dependency on fluent assersion because of licensing concerns by @baywet in microsoft/agent-framework#7938 * .NET: docs(decisions): resolve duplicate ADR sequence numbers (0016, 0021, 0024) by @jluocsa in microsoft/agent-framework#6046 * .NET: Bump Azure.Core from 1.61.0 to 1.62.0 by @dependabot[bot] in microsoft/agent-framework#7954 * .NET: Improve Cosmos DB Emulator startup reliability by @TheovanKraay in microsoft/agent-framework#3932 * .NET: add public API analyzers by @baywet in microsoft/agent-framework#7935 * .NET: Update version for 1.20.0 release by @SergeyMenshykh in microsoft/agent-framework#7972 ## New Contributors * @madanmishra1223 made their first contribution in microsoft/agent-framework#7705 * @YashvantHange made their first contribution in microsoft/agent-framework#7850 * @jihadkhawaja made their first contribution in microsoft/agent-framework#7792 * @adamsitnik made their first contribution in microsoft/agent-framework#7878 * @baywet made their first contribution in microsoft/agent-framework#7870 * @Namraa310806 made their first contribution in microsoft/agent-framework#7901 * @Sweetteabittersugar made their first contribution in microsoft/agent-framework#7903 * @shoemoney made their first contribution in microsoft/agent-framework#7837 * @jluocsa made their first contribution in microsoft/agent-framework#6046 **Full Changelog**: microsoft/agent-framework@dotnet-1.19.0...dotnet-1.20.0 Commits viewable in [compare view](microsoft/agent-framework@dotnet-1.19.0...dotnet-1.20.0). </details> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore <dependency name> major version` will close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself) - `@dependabot ignore <dependency name> minor version` will close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself) - `@dependabot ignore <dependency name>` will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself) - `@dependabot unignore <dependency name>` will remove all of the ignore conditions of the specified dependency - `@dependabot unignore <dependency name> <ignore condition>` will remove the ignore condition of the specified dependency and ignore conditions </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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Motivation & Context
The A2A client-server sample currently includes several agents and coordination layers, making the basic setup harder to follow. This streamlines it into a focused policy-agent example.
Description & Review Guide
Related Issue
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Contribution Checklist
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