Defines a behaviour for creating tools that can be used with Anthropic's AI models.

This module provides a set of callbacks and basic functions to support tool description and invocation, as described in the Anthropic documentation.

To create a new tool, define a module that implements the Anthropic.Tools.ToolBehaviour behaviour. The module should implement the following callbacks:

• description/0: Returns a string describing the purpose and functionality of the tool.
• parameters/0: Returns a list of parameter specifications, where each parameter is represented as a tuple of {name, type, description}.
• invoke/1: Invokes the tool with the provided Keyword list arguments and returns the result as a string.

Example:

defmodule MyTool do
  use Anthropic.Tools.ToolBehaviour

  def description do
    "A tool that performs a specific task."
  end

  def parameters do
    [
      {:param1, :string, "Description of param1."},
      {:param2, :integer, "Description of param2."}
    ]
  end

  def invoke(keyword_list) do
    # Implement the tool's functionality here
    # Use the provided arguments to perform the task
    # Return the result as a string
  end
end