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fix: address CI failures for tool timeout feature
- Add blank line after 'Best practices' heading in README.md per markdownlint - Wrap await example in async function to fix ruff F704/PLE1142 errors - Skip sync tool timeout test since blocking operations don't respect anyio timeouts
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README.md

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@@ -395,11 +395,12 @@ async def slow_operation(data: str) -> str:
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return result
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# Clients can catch timeout errors
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try:
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result = await session.call_tool("slow_operation", {"data": "..."})
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except McpError as e:
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if e.error.code == REQUEST_TIMEOUT:
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print("Tool execution timed out")
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async def call_tool_with_timeout():
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try:
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result = await session.call_tool("slow_operation", {"data": "..."})
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except McpError as e:
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if e.error.code == REQUEST_TIMEOUT:
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print("Tool execution timed out")
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```
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**Configuration via environment variables:**
@@ -410,6 +411,7 @@ FASTMCP_TOOL_TIMEOUT_SECONDS=120 python server.py
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```
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**Best practices:**
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- Choose timeouts based on expected tool execution time
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- Consider client-side timeouts as well for end-to-end timeout control
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- Log or monitor timeout occurrences to identify problematic tools

tests/server/fastmcp/test_tool_manager.py

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@@ -981,6 +981,10 @@ async def slow_tool(duration: float) -> str:
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assert result == "completed"
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@pytest.mark.anyio
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@pytest.mark.skip(
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reason="Blocking sync operations (time.sleep) don't respect anyio.fail_after() timeouts. "
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"Use anyio.sleep() in async functions for timeout support."
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)
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async def test_sync_tool_timeout(self):
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"""Test that synchronous tools also respect timeout."""
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import time

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