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Python: [BREAKING] PR2 — Wire context provider pipeline, remove old types, update all consumers (#3850)
frostbyte_neo 发布于
2026-02-12 21:00:32 +00:00 - PR2: Wire context provider pipeline and update all internal consumers
- Replace AgentThread with AgentSession across all packages
- Replace ContextProvider with BaseContextProvider across all packages
- Replace context_provider param with context_providers (Sequence)
- Replace thread= with session= in run() signatures
- Replace get_new_thread() with create_session()
- Add get_session(service_session_id) to agent interface
- DurableAgentThread -> DurableAgentSession
- Remove _notify_thread_of_new_messages from WorkflowAgent
- Wire before_run/after_run context provider pipeline in RawAgent
- Auto-inject InMemoryHistoryProvider when no providers configured
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fix: update all tests for context provider pipeline, fix lazy-loaders, remove old test files
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refactor: update all sample files for context provider pipeline (AgentThread→AgentSession, ContextProvider→BaseContextProvider)
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fix: update remaining ag-ui references (client docstring, getting_started sample)
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fix: make get_session service_session_id keyword-only to avoid confusion with session_id
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refactor: rename _RunContext.thread_messages to session_messages
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refactor: remove _threads.py, _memory.py, and old provider files; migrate devui to use plain message lists
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rename: remove new prefix from test files
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refactor: rewrite SlidingWindowChatMessageStore as SlidingWindowHistoryProvider(InMemoryHistoryProvider)
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fix: read full history from session state directly instead of reaching into provider internals
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fix: update stale .pyi stubs, sample imports, and README references for new provider types
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fix: remove stale message_store, _notify_thread_of_new_messages, and session_id.key references in samples
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refactor: merge context_providers and sessions sample folders into sessions, remove aggregate_context_provider
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refactor: UserInfoMemory stores state in session.state instead of instance attributes
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feat: add Pydantic BaseModel support to session state serialization
Pydantic models stored in session.state are now automatically serialized
via model_dump() and restored via model_validate() during to_dict()/from_dict()
round-trips. Models are auto-registered on first serialization; use
register_state_type() for cold-start deserialization.Also export register_state_type as a public API.
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fix mem0
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Update sample README links and descriptions for session terminology
- Replace 'thread' with 'session' in sample descriptions across all READMEs
- Update file links for renamed samples (mem0_sessions, redis_sessions, etc.)
- Fix Threads section → Sessions section in main samples/README.md
- Update tools, middleware, workflows, durabletask, azure_functions READMEs
- Update architecture diagrams in concepts/tools/README.md
- Update migration guides (autogen, semantic-kernel)
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Fix broken Redis README link to renamed sample
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Fix Mem0 OSS client search: pass scoping params as direct kwargs
AsyncMemory (OSS) expects user_id/agent_id/run_id as direct kwargs,
while AsyncMemoryClient (Platform) expects them in a filters dict.
Adds tests for both client types.Port of fix from #3844 to new Mem0ContextProvider.
- Fix rebase issues: restore missing _conversation_state.py and checkpoint decode logic
- Add back _conversation_state.py (encode/decode_chat_messages) lost in rebase
- Fix on_checkpoint_restore to decode cache/conversation with decode_chat_messages
- Fix on_checkpoint_restore to use decode_checkpoint_value for pending requests
- Add tests/workflow/__init__.py for relative import support
- Fix test_agent_executor checkpoint selection (checkpoints[1] not superstep)
- Add STORES_BY_DEFAULT ClassVar to skip redundant InMemoryHistoryProvider injection
Chat clients that store history server-side by default (OpenAI Responses API,
Azure AI Agent) now declare STORES_BY_DEFAULT = True. The agent checks this
during auto-injection and skips InMemoryHistoryProvider unless the user
explicitly sets store=False.-
Fix broken markdown links in azure_ai and redis READMEs
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Fix getting-started samples to use session API instead of removed thread/ContextProvider API
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updates to workflow as agent
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fix group chat import
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Rename Thread→Session throughout, fix service_session_id propagation, remove stale AGUIThread
- Fix: Propagate conversation_id from ChatResponse back to session.service_session_id
in both streaming and non-streaming paths in _agents.py - Rename AgentThreadException → AgentSessionException
- Remove stale AGUIThread from ag_ui lazy-loader
- Rename use_service_thread → use_service_session in ag-ui package
- Rename test functions from thread to session
- Rename sample files from _thread to _session
- Update docstrings and comments: thread → session
- Update _mcp.py kwargs filter: add 'session' alongside 'thread'
- Fix ContinuationToken docstring example: thread=thread → session=session
- Fix _clients.py docstring: 'Agent threads' → 'Agent sessions'
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Fix broken markdown links after thread→session file renames
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fix azure ai test
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