This tool connects to the Malloy Publisher API (default: http://localhost:4000/api/v0)
and executes a Malloy query against a model.

Args:
    project_name: The name of the project, defaults to "home"
    package_name: The name of the package containing the model
    model_path: The path to the model within the package
    query: The Malloy query string to execute (mutually exclusive with query_name)
    source_name: Name of the source in the model (required when using query_name)
    query_name: Name of a query to execute on a source
        (mutually exclusive with query)
    version_id: Version ID of the package

Returns:
    Any: Query execution result with structure:
        {
            "data_styles": Object containing style information
            "model_def": Object containing model definition
            "query_result": Array of result objects
        }

Raises:
    MalloyError: If query execution fails or parameters are invalid
        Error codes:
        - QUERY_EXECUTION_ERROR: Error during query execution
        - CONNECTION_ERROR: Error connecting to Malloy Publisher API

Example:
    ```python
    # Example 1: Direct query
    result = await execute_malloy_query(
        project_name="home",
        package_name="sales",
        model_path="sales.malloy",
        query="query: orders -> { aggregate: count() }"
    )

    # Example 2: Named query
    result = await execute_malloy_query(
        project_name="home",
        package_name="sales",
        model_path="sales.malloy",
        source_name="orders",
        query_name="top_customers"
    )
    ```

This tool doesn't require any input parameters.

Returns:
    list[Project]: List of Malloy projects

Args:
    project_name: The name of the project to list packages for, defaults to "home"

Returns:
    list[Package]: List of Malloy packages

Args:
    project_name: The name of the project, defaults to "home"
    package_name: The name of the package to list models for

Returns:
    List[Model]: List of Malloy models

Args:
    project_name: The name of the project, defaults to "home"
    package_name: The name of the package
    model_path: The path to the model

Returns:
    CompiledModel: The compiled Malloy model