* Add AgentWorkflowBuilder group chat
And fix a variety of issues along the way:
- Use DateTime{Offset}.UtcNow rather than Now
- AIAgentHostExecutor shouldn't be publishing empty messages
- Sequential workflows should be flowing all history and not just the output from the previous agent as the input into the next agent
- Renamed some of the new agent workflow methods... still not super happy with the shape, though
- Simplified handoffs builder, e.g. using a hashset with a custom comparer instead of a dictionary
- Improved multi-service use by trying to change assistant->user role for messages created by other agents
- Changed MessageMerger to rely on M.E.AI's coalescing more and to avoid empty contents / text
- Ensured that messages from ChatClientAgent include MessageId and CreatedAt timestamps
- Avoided including instructions for agents in a handoff workflow that don't have any handoffs
- Removed the unnecessary end function in handoffs
- Improved naming of executors to include agent name for debuggability
- Use "N" formatting with Guid.ToString everywhere, to avoid the unnecessary extra dash character which is also not valid in various places (like function tool names)
- Replace `params T[]` with `params IEnumerable<T>` to make public APIs more flexible in what they consume
* Address feedback
- Fix unintentional provider change in sample
* Subclass AgentThread so that different agents have their own threads with their own typed settings.
* Address PR comment.
* Add unit tests for base abstract threads
* Fix style warning
* Fix stlying
* FIx and suppress warnings as needed.
* Remove covariant thread response types and fix some styling.
* Remove unecessary json property name attributes and make OrchestratingAgentThread private
* Fix break from merge from main.
* Fix formatting
* Fix deserialization bug in Memory sample
* Remove thread deletion from basic samples.
* Remove public constructors for thread subclasses and add more factory methods to concrete agent types.
* Update AgentProxy thread constructors to be internal as well.
* Revert AgentProxyThread to internal
* Change AIContextProvider to internal set
* Change conversation id and message store properties to internal set
* Update styling.
* Seal various thread types.
* Add thread type check for thread deletion
* Fix tests after latest merge from main
* Add thread type checks for thread deletion.
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Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>
* Add thread storage and serialization POC
* Switch to using JsonElement and add unit tests
* Add additional unit tests.
* Exclude private debugger properties from CodeCoverage.
* Rename IChatMessagesStorable to IChatMessageStore
* Apply suggestions from code review
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* Improve xml doc.
* Update the message storing thread to always use external store for both local and remote storage.
* Remove threadid from the IChatMessageStore interface, since the store should own the thread id itself, if it requires one.
* Switch GetMessages to IEnumerable
* Address pr comments.
* Make jsonserializer options default consistent on DeserializeThreadAsync
* Move message storing thread functionality into AgentThread and simplify AgentThread behavior.
* Remove embedding generation from VectorStore chat history sample.
* Remove unecessary code and fix formatting.
* Make GetNewThread and DeserializeThread virtual with default implementations.
Remove unsued json utilities.
* Fix formatting
* Remove problem test.
* Add more unit tests
* Remove unused using clause.
* Address pr feedback.
* Address PR comments.
* Make InMemory store internal
* Switch InMemoryChatMessageStore to implement IList instead of inheriting from List.
* Rename store deserialize param.
* Update serialization based on PR comments.
* Remove confusing comment.
* Address Deserialization PR comments in the same way as Serialization
* Add State to IChatMessageStore Serialize and Deserialize names.
Make Thread Deserialize internal.
Make AgentThread type switching fobidden.
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>