fix: exclude tool_type from tool.specs.json init params

The @computed_field tool_type on BaseTool (added for checkpoint
deserialization) was leaking into the generated tool.specs.json via
model_json_schema(mode='serialization'). Studio reads this file and
was rendering 'Tool Type' as a required field users couldn't fill in.

Changes:
- Add 'tool_type' to ignored_init_params in generate_tool_specs.py
- Also filter ignored params from the 'required' list in the schema
- Add TDD test asserting tool_type is excluded from init_params_schema
- Regenerate tool.specs.json (tool_type removed from all tools)

lib/crewai-tools/src/crewai_tools/generate_tool_specs.py

@@ -167,6 +167,7 @@ class ToolSpecExtractor:
             "max_usage_count",
             "current_usage_count",
             "package_dependencies",
+            "tool_type",
         ]
 
         json_schema = tool_class.model_json_schema(
@@ -178,6 +179,11 @@ class ToolSpecExtractor:
             for key, value in json_schema["properties"].items()
             if key not in ignored_init_params
         }
+        if "required" in json_schema:
+            json_schema["required"] = [
+                key for key in json_schema["required"]
+                if key not in ignored_init_params
+            ]
         return json_schema
 
     def save_to_json(self, output_path: str) -> None:

lib/crewai-tools/tests/test_generate_tool_specs.py

@@ -169,6 +169,19 @@ def test_extract_package_dependencies(mock_tool_extractor):
     ]
 
 
+def test_tool_type_excluded_from_init_params(mock_tool_extractor):
+    """tool_type is an internal computed_field for checkpoint deserialization.
+    It must NOT leak into the init_params_schema that Studio reads, otherwise
+    users see a required 'Tool Type' field they can't fill in."""
+    init_schema = mock_tool_extractor["init_params_schema"]
+    assert "tool_type" not in init_schema.get("properties", {}), (
+        "tool_type should not appear in init_params_schema properties"
+    )
+    assert "tool_type" not in init_schema.get("required", []), (
+        "tool_type should not appear in init_params_schema required list"
+    )
+
+
 def test_save_to_json(extractor, tmp_path):
     extractor.tools_spec = [
         {