ProviderErrorClassifier class

Before this, every failure that was not an Azure content filter produced the same sentence: "An error occurred while processing the response." Part D watched a user paste an intranet image URL, the provider answer Unable to download image from http://localhost:5224/favicon.png, and that sentence appear — while the log held both the cause and the exact URL. The person who could have fixed it in two seconds was told nothing.

The rule that keeps this safe. A classification is only made when the user can act on it. An expired key, a missing deployment, a firewall rule are operator problems: they stay generic, because naming them neither helps the reader nor is something to tell whoever is probing the application. Nothing here ever forwards the provider's own text — IncludeWorkflowExceptionDetails keeps its meaning and its default, and the full exception keeps going to the log either way.

Matching is on the provider's message because that is all there is: Azure OpenAI, OpenAI and Ollama report these conditions with different status codes and different exception types but very stable wording. Each rule is anchored on a phrase the provider owns, and an unmatched message falls through to the generic answer rather than to a guess.

Namespace: Novior.MentorAgent.Core. Package: Novior.MentorAgent.

public static class ProviderErrorClassifier

dotnet add package Novior.MentorAgent

public static string Describe(Exception ex, MentorLocalizer localizer)

A user-facing sentence for ex, in the localizer's language. Never contains provider text, an identifier, or a token count.