Is the README example Tool registration method incorrect?

[Kila2]

Describe the bug
Is the README example Tool registration method incorrect?
Using the example from the README, I get an error saying that the inputSchema is expected to be an object.

Example from the README:

Tool(
    name: "weather",
    description: "Get current weather for a location",
    inputSchema: .object([
        "location": .string("City name or coordinates"),
        "units": .string("Units of measurement, e.g., metric, imperial")
    ])
)

When I try this format, I get the expected response:

Tool(
    name: "weather",
    description: "Get current weather for a location",
    inputSchema: .object([
        "type": "object",
        "properties": [
            "a": ["type": "number"],
            "b": ["type": "number"]
        ],
        "required": ["a", "b"]
    ])
)

To Reproduce
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1.

Expected behavior
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Logs
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Additional context
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[richard-giantrobot]

I was getting the same error, thanks to your code snippet it started working. Thank you @Kila2, how did you figure it out?

[Kila2]

I found that the input mode for MCP servers to send messages to clients is "{}", but the MCP protocol requires a "type" field, that's all

[ptliddle]

No, see #131 (comment) for more context. It currently isn't producing valid JSON Schema output.