ToolFunctionSchema

The ToolFunctionSchema class validates the complete function field structure for tool calling.

Properties

• function (FunctionDefinitionSchema): Function definition (name, description, parameters)
• type (Literal["function"]): Default "function". Fixed type marker
• strict (bool): Default False. Whether in strict mode

Description

The ToolFunctionSchema class inherits from BaseModel and represents the full function-calling schema structure sent to the model. It wraps a FunctionDefinitionSchema with the type marker and strict-mode flag.

Note: ToolChoice is a type alias defined as Literal["none", "auto", "required"] | ToolFunctionSchema.

Example

from amrita_core.tools.models import ToolFunctionSchema, FunctionDefinitionSchema

schema = ToolFunctionSchema(
    function=FunctionDefinitionSchema(
        name="search",
        description="Search the web",
        parameters={
            "type": "object",
            "properties": {"query": {"type": "string"}},
            "required": ["query"],
        },
    ),
    strict=False,
)