Update version to 0.1.2 in pyproject.toml and modify Toolkit class in…

… toolkit.py to allow 'tools' to be optional, adding a field validator for better handling of None values.

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "pyramidpy-tools"
-version = "0.1.1"
+version = "0.1.2"
 description = "Toolkits for the PyramidPy Project"
 requires-python = ">=3.10.10"
 authors = [{name = "PyramidPy Team"}]

src/pyramidpy_tools/toolkit.py

@@ -1,7 +1,7 @@
 from typing import Any, List, Literal, TypeVar
 
 from controlflow.tools.tools import Tool
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, Field, field_validator
 
 BaseType = TypeVar("BaseType", bound=BaseModel)
 
@@ -14,7 +14,7 @@ class Toolkit(BaseModel):
     default: bool = Field(
         description="Default toolkits available to all agents", default=True
     )
-    tools: List[Tool] = Field(
+    tools: List[Tool] | None = Field(
         description="List of tools in the toolkit", default=[]
     )
     requires_config: bool = Field(
@@ -68,6 +68,12 @@ class Toolkit(BaseModel):
         description="Set to true if toolkit has configuration", default=False
     )
 
+    @field_validator("tools", mode="after")
+    def validate_tools(cls, v):
+        if v is None:
+            return []
+        return v
+
     def to_tool_list(self) -> List[Tool]:
         tools = []
         if self.active_tools not in [None, "all"]: