[LI (ktz03)]

Motivation & Context

Both bring-your-own-route Responses server guides say ASPNETCORE_URLS can override the listening address. Each server instead calls app.Run with a fixed URL, so that instruction does not match the sample's address binding.

Description & Review Guide

• What are the major changes? Correct both server guides and the adjacent binding comments: change the URL passed to app.Run and set RESPONSES_SERVER_URL in the client shell to the same address.
• What is the impact of these changes? Documentation and comments only. The default ports, executable code, and client configuration behavior are unchanged.
• What do you want reviewers to focus on? Both explicit server URLs and both client environment-variable reads were checked against the same source revision. The ASP.NET Core 10 source confirms that Run(url) replaces the address collection with that URL. No .NET build, sample execution, HTTP request, or cloud call was run.

Related Issue

N/A - trivial change. This corrects an inaccurate configuration instruction to describe the existing server and client code; it adds no behavior or API. The open session-storage change #8417 does not change these instructions or the URL binding.

AI Assistance

• No material AI assistance was used.
• This is an AI-assisted contribution. I reviewed, understood, and verified all submitted content and accept responsibility for it.

AI assistance details: Documentation, static verification, and this PR description.

Contribution Checklist

• The code builds clean without any errors or warnings
• All unit tests pass, and I have added new tests where possible
• The PR follows the Contribution Guidelines
• This PR links to an agreed issue with no competing open PR, or the Related Issue section documents a trivial-change or repository-automation exception.
• This is not a breaking change.

[Copilot]

🟢 Approval recommended

The documentation and comment changes match the existing server bindings and verified client configuration, with no unresolved issues.

No open issues 🎉

What changed in this PR

Corrects endpoint configuration guidance for the two .NET Responses hosting samples so it matches their existing fixed server bindings.

Changes:

• Replaces inaccurate ASPNETCORE_URLS override instructions with guidance to change the URL passed to app.Run.
• Directs users to set RESPONSES_SERVER_URL in the client shell to the same address.
• Updates documentation and comments only; executable code and default ports remain unchanged.

File	Description
dotnet/​samples/​04-hosting/​af-hosting/​local_responses/​Server/​README.md	Corrects address configuration instructions for the agent server.
dotnet/​samples/​04-hosting/​af-hosting/​local_responses/​Server/​Program.cs	Corrects the binding comment beside the port 5000 URL.
dotnet/​samples/​04-hosting/​af-hosting/​local_responses_workflow/​Server/​README.md	Corrects address configuration instructions for the workflow server.
dotnet/​samples/​04-hosting/​af-hosting/​local_responses_workflow/​Server/​Program.cs	Corrects the binding comment beside the port 5001 URL.

_{Review effort: Balanced}

[Vincent Biret (baywet)]

Thanks for the contribution!