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fastmcp/tests/tools
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Bill Easton d0bcec979c
 fix: TransformedTool sync fn crash and schema mutation (#3823) 
* fix: TransformedTool sync fn crash, schema mutation, output_schema=False

- Handle sync transform_fn in run() using is_coroutine_function check
  instead of unconditionally awaiting (fixes TypeError crash)
- Deep copy parent property schemas to prevent mutation corruption
- Accept output_schema=False via BeforeValidator (converts to None)
- Remove inaccurate docstring claiming str/None shorthand for transform_args

Fixes #3821

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Add regression tests for sync transform_fn and schema mutation

🤖 Generated with Claude Code

Co-authored-by: Jeremiah Lowin <jeremiah@lowin.dev>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Jeremiah Lowin <153965+jlowin@users.noreply.github.com>
Co-authored-by: Jeremiah Lowin <jeremiah@lowin.dev>
2026-04-11 11:50:23 -04:00
..
tool fix: suppress output schema for ToolResult subclass annotations (#3548) 2026-03-18 15:22:37 -04:00
tool_transform fix: TransformedTool sync fn crash and schema mutation (#3823) 2026-04-11 11:50:23 -04:00
__init__.py Support mounting FastMCPs as sub-servers 2025-04-07 17:54:55 -04:00
test_standalone_decorator.py Update ty ignore comments for 0.0.25 compatibility (#3614) 2026-03-24 20:26:26 -04:00
test_tool_future_annotations.py fix: resolve Pyright "Module is not callable" on @tool, @resource, @prompt decorators (#3540) 2026-03-17 18:11:42 -04:00
test_tool_timeout.py Unify discovery API: deduplicate at protocol layer only (#2919) 2026-01-18 21:01:53 -05:00