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.NET: [BREAKING] Add session StateBag for state storage and support multiple providers on the Agent (#3806)

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* .NET: [BREAKING] Add session statebag to use for state storage instead of inside providers (#3737)

* Add a StateBag to AgentSession and pass Agent and AgentSession to AIContextProvider and ChatHistoryProviders

* Convert all AIContextProviders to use the statebag

* Update InMemoryChatHistoryProvider to use StateBag

* Update Comsos and Workflow ChatHistoryProviders

* Update 3rd party chat history storage sample.

* Remove serialize method from providers

* Replacing provider factories with properties

* Remove Providers from Session and flatten state bag serialization

* Update samples to use getservice on agent

* Updated additional session types to serialize statebag

* Fix regression

* Address PR comments

* Address PR comments.

* Fix formatting

* Fix unit tests

* Remove InMemoryAgentSession since it is not required anymore.

* Address PR comments

* Convert sessions for A2AAgent, ChatClientAgent, CopilotStudioAgent and GithubCopilotAgent to use regular json serialization.

* Fix durable agent session jso usgae

* Add jso to InMemory and Workflow ChatHistoryProviders

* Update InMemoryChatHistoryProvider to use an options class for it's many optional settings.

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Address PR feedback

* Fix verification bug.

* Improve state bag thread safety

* Address PR comments and fix unit tests

* Address PR comments

* Fix unit test

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Add a public StateKey property to providers (#3810)

* .NET: [BREAKING] Update providers in such a way that they can participate in a pipeline (#3846)

* Make providers pipeline capable

* Fix unit tests

* Move source stamping to providers from base class

* Also update samples.

* Address PR comments

* Rename AsAgentRequestMessageSourcedMessage to WithAgentRequestMessageSource

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

* 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

* .NET: [BREAKING] Add support for multiple AIContextProviders on a ChatClientAgent (#3863)

* Add support for multiple AIContextProviders on a ChatClientAgent

* Address PR comments and fix tests

* Address PR comments.

* .NET: [BREAKING]Delay AIContext Materialization until the end of the pipeline is reached. (#3883)

* Delay AIContext Materialization until the end of the pipeline is reached.

* Address PR comments.

* Address PR comments

* Modify InvokedContext to be immutable (#3888)

* .NET: Address Feedback on StateBag feature branch PR (#3910)

* Address Feedback on statebag feature branch PR

* Update dotnet/src/Microsoft.Agents.AI.DurableTask/CHANGELOG.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Address PR comments

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
westey
2026-02-13 14:08:07 +00:00
committed by GitHub
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parent 4452997e8d
commit 3168eb4870
104 changed files with 5120 additions and 4332 deletions
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dotnet/samples/GettingStarted/AgentWithRAG/AgentWithRAG_Step01_BasicTextRAG/Program.cs
+8 -4
View File
@@ -65,12 +65,16 @@ AIAgent agent = azureOpenAIClient
.AsAIAgent(new ChatClientAgentOptions
{
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." },
AIContextProviderFactory = (ctx, ct) => new ValueTask<AIContextProvider>(new TextSearchProvider(SearchAdapter, ctx.SerializedState, ctx.JsonSerializerOptions, textSearchOptions)),
// Since we are using ChatCompletion which stores chat history locally, we can also add a message removal policy
AIContextProviders = [new TextSearchProvider(SearchAdapter, textSearchOptions)],
// 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.
ChatHistoryProviderFactory = (ctx, ct) => new ValueTask<ChatHistoryProvider>(new InMemoryChatHistoryProvider(ctx.SerializedState, ctx.JsonSerializerOptions)
.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();