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Eduard van Valkenburg 8ed50009c6 Python: Centralize tool result parsing in FunctionTool.invoke() (#3854 )

* Centralize tool result parsing in FunctionTool.invoke()

- Add parse_result static method to FunctionTool that converts raw
  function return values to strings at invocation time
- Add result_parser parameter to FunctionTool and @tool decorator
  for custom parsing
- Remove prepare_function_call_results from all 9 consumer files
  and from the public API
- Update MCPTool to parse MCP types directly to strings via
  _parse_tool_result_from_mcp and _parse_prompt_result_from_mcp
- Change MCPTool parse_tool_results/parse_prompt_results type from
  Literal[True] | Callable | None to Callable | None
- Remove ReturnT type parameter from FunctionTool (now single
  generic ArgsT since invoke() always returns str)
- Update all subclass signatures and docstrings

Fixes #1147

* Fix test_mcp_tool_call_tool_with_meta_integration for string results

The test was still accessing result[0].additional_properties but
invoke() now returns a string, not a list of Content objects.

* Fix SIM108 lint: use binary operator for output assignment

* Fix bedrock: use FunctionTool.parse_result instead of str() fallback

str(result) turns None into literal 'None' and dicts into Python reprs
with single quotes, breaking JSON parsing. Use the shared parse_result
which handles None as '' and serializes via json.dumps.

* updated lock

* updates from feedback

8ed50009c6 · 2026-02-12 13:49:42 +00:00

History

agent_framework_claude

Python: Centralize tool result parsing in FunctionTool.invoke() (#3854 )

2026-02-12 13:49:42 +00:00

tests

Python: Replace Pydantic Settings with TypedDict + load_settings() (#3843 )

2026-02-12 08:51:20 +00:00

AGENTS.md

.NET: Python: Add AGENTS.md files and update coding standards (#3644 )

2026-02-05 10:27:46 +00:00

LICENSE

Python: Add BaseAgent implementation for Claude Agent SDK (#3509 )

2026-01-30 18:11:41 +00:00

pyproject.toml

Update package versions (#3838 )

2026-02-11 00:20:29 +00:00

README.md

Python: Add BaseAgent implementation for Claude Agent SDK (#3509 )

2026-01-30 18:11:41 +00:00

README.md

Get Started with Microsoft Agent Framework Claude

Please install this package via pip:

pip install agent-framework-claude --pre

Claude Agent

The Claude agent enables integration with Claude Agent SDK, allowing you to interact with Claude's agentic capabilities through the Agent Framework.