agent-framework

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Evan Mattson 07f4c8a8d6 Python: Expose forwardedProps to agents and tools via session metadata (#5264 )

* Expose forwarded_props to agents and tools via session metadata (#5239)

Include forwarded_props from AG-UI request input_data in session.metadata
(agent runner) and function_invocation_kwargs (workflow runner) so that
agents, tools, and workflow executors can access request-level metadata
such as invocation source flags from CopilotKit.

- Add forwarded_props to base_metadata in _agent_run.py when present
- Add 'forwarded_props' to AG_UI_INTERNAL_METADATA_KEYS to filter it
  from LLM-bound client metadata
- Extract forwarded_props in _workflow_run.py and pass via
  function_invocation_kwargs to workflow.run()
- Accept both snake_case and camelCase keys (forwarded_props/forwardedProps)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix(ag-ui): pass stream=True as literal to satisfy pyright overload resolution (#5239)

The previous fix passed stream=True via **kwargs dict, which prevented
pyright from resolving the Workflow.run() overload to the streaming
variant. Pass stream=True as an explicit keyword argument so pyright
can correctly infer the ResponseStream return type.

Also remove unused pytest import in test file.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: address PR review feedback for forwarded_props (#5239)

- Use key-presence checks instead of truthiness for forwarded_props so
  empty dict {} is forwarded correctly
- Gate function_invocation_kwargs on workflow.run() signature inspection
  to avoid TypeError for workflows without **kwargs
- Change _build_safe_metadata to drop (with warning) keys whose
  serialized values exceed 512 chars instead of truncating into invalid
  JSON
- Rewrite metadata tests to exercise _build_safe_metadata directly with
  JSON-decodability and truncation assertions
- Add workflow tests for empty dict forwarded_props, stream=True
  assertion, and signature-gated kwarg dropping

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* test: add stream=True assertions to CapturingWorkflow tests (#5239)

Guard against accidental removal of the explicit stream=True kwarg
in all forwarded_props CapturingWorkflow test cases.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review feedback for #5239: Python: Expose forwardedProps to agents and tools via session metadata

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Co-authored-by: Copilot <copilot@github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>