wehub-resource-sync
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31 lines
1.1 KiB
Python
31 lines
1.1 KiB
Python
"""Supply a canned sampling_callback and assert its text round-trips through the tool."""
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from mcp_types import CreateMessageRequestParams, CreateMessageResult, TextContent
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from mcp.client import Client, ClientRequestContext
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from stories._harness import Target, run_client
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async def on_sample(context: ClientRequestContext, params: CreateMessageRequestParams) -> CreateMessageResult:
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# A real host would call its LLM provider here; the example returns a deterministic
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# canned answer so the round-trip is assertable.
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return CreateMessageResult(
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role="assistant",
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content=TextContent(text="[canned summary]"),
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model="stub-model",
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stop_reason="endTurn",
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)
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async def main(target: Target, *, mode: str = "auto") -> None:
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async with Client(target, mode=mode, sampling_callback=on_sample) as client:
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result = await client.call_tool("summarize", {"text": "hello world"})
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assert not result.is_error, result
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assert isinstance(result.content[0], TextContent)
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assert result.content[0].text == "[canned summary]", result.content[0].text
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if __name__ == "__main__":
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run_client(main)
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