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.NET: [BREAKING] Add consistent message filtering to all providers. (#3851)

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* Add consistent message filtering to all providers.

* Remove old chat history filtering classes

* Fix merge issues

* Fix unit test

* Enforce non-nullable property

* Fix merging bug and make troubleshooting source info easier by adding tostring implementation
This commit is contained in:
westey
2026-02-12 10:50:13 +00:00
committed by GitHub
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parent c99df98547
commit de82ffd40a
26 changed files with 918 additions and 502 deletions
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dotnet/samples/GettingStarted/AgentWithRAG/AgentWithRAG_Step01_BasicTextRAG/Program.cs
+7 -3
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@@ -63,11 +63,15 @@ AIAgent agent = azureOpenAIClient
{
ChatOptions = new() { Instructions = "You are a helpful support specialist for Contoso Outdoors. Answer questions using the provided context and cite the source document when available." },
AIContextProvider = new TextSearchProvider(SearchAdapter, textSearchOptions),
// Since we are using ChatCompletion which stores chat history locally, we can also add a message removal policy
// Since we are using ChatCompletion which stores chat history locally, we can also add a message filter
// that removes messages produced by the TextSearchProvider before they are added to the chat history, so that
// we don't bloat chat history with all the search result messages.
ChatHistoryProvider = new InMemoryChatHistoryProvider()
.WithAIContextProviderMessageRemoval(),
// By default the chat history provider will store all messages, except for those that came from chat history in the first place.
// We also want to maintain that exclusion here.
ChatHistoryProvider = new InMemoryChatHistoryProvider(new InMemoryChatHistoryProviderOptions
{
StorageInputMessageFilter = messages => messages.Where(m => m.GetAgentRequestMessageSourceType() != AgentRequestMessageSourceType.AIContextProvider && m.GetAgentRequestMessageSourceType() != AgentRequestMessageSourceType.ChatHistory)
}),
});
AgentSession session = await agent.CreateSessionAsync();