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fenic.core.mcp

MCP Tool Generation/FastMCP Server Management.

Classes:

  • BoundToolParam –

    A bound tool parameter.

  • SystemTool –

    A tool implemented as a regular Python function with explicit parameters.

  • ToolParam –

    A parameter for a parameterized view tool.

  • UserDefinedTool –

    A tool that has been bound to a specific Parameterized View.

BoundToolParam

A bound tool parameter.

A bound tool parameter is a parameter that has been bound to a specific, typed, tool_param usage within a Dataframe.

SystemTool

A tool implemented as a regular Python function with explicit parameters.

The function must be a Callable[..., LogicalPlan] (a function defined with async def). Collection/formatting is handled by the MCP generator wrapper.

ToolParam

Bases: BaseModel

A parameter for a parameterized view tool.

A parameter is a named value that can be passed to a tool. These are matched to the parameter names of the tool_param UnresolvedLiteralExpr expressions captured in the Logical Plan.

Attributes:

  • name (str) –

    The name of the parameter.

  • description (str) –

    The description of the parameter.

  • allowed_values (Optional[List[ToolParameterType]]) –

    The allowed values for the parameter.

  • has_default (bool) –

    Whether the parameter has a default value.

  • default_value (Optional[ToolParameterType]) –

    The default value for the parameter.

required property 

required: bool

Whether the parameter is required.

Returns:

  • bool –

    True if the parameter is required, False otherwise.

UserDefinedTool

A tool that has been bound to a specific Parameterized View.