# ToolAttribute

> Base class from which EditorToolAttribute and EditorToolContextAttribute inherit.

## Definition

* **Type:** Class
* **Namespace:** [UnityEditor.EditorTools](/engine/6000.5/script-reference/unityeditor/editortools.md)
* **Assembly:** UnityEditor.CoreModule
* **Inherits from:** [Attribute](https://learn.microsoft.com/dotnet/api/system.attribute)

```csharp
public abstract class ToolAttribute : Attribute
```

## Static Fields

| Value                                                                                                       | Description                                                                                                                                                                                                                                                                                                                                                                                                                        |
| ----------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [defaultPriority](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/defaultpriority.md) | The default value for [ToolAttribute.toolPriority](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/toolpriority.md) and [ToolAttribute.variantPriority](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/variantpriority.md). Specify a priority lower than this value to display a tool before the default entries, or specify a higher value to display it after the default entries. |

## Properties

| Property                                                                                                                  | Description                                                                                                                                                                                                                                                                                                                                                                                            |
| ------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [allowPersistentTargets](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/allowpersistenttargets.md) | Allows the tool to target persistent objects. This is only compatible with ScriptableObjects. When you develop tools that target persistent objects, let users know whether they're editing an in-scene or a persistent object.                                                                                                                                                                        |
| [displayName](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/displayname.md)                       | The name that displays in menus.                                                                                                                                                                                                                                                                                                                                                                       |
| [group](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/group.md)                                   | Tool groups place logically similar tools under a single header in the Tools Overlay.                                                                                                                                                                                                                                                                                                                  |
| [targetContext](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/targetcontext.md)                   | If provided, the [EditorTool](/engine/6000.5/script-reference/unityeditor/editortools/editortool.md) will only be made available when the [ToolManager.activeContextType](/engine/6000.5/script-reference/unityeditor/editortools/toolmanager/activecontexttype.md) is equal to [ToolAttribute.targetContext](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/targetcontext.md). |
| [targetType](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/targettype.md)                         | Set to the type that this [EditorTool](/engine/6000.5/script-reference/unityeditor/editortools/editortool.md) or [EditorToolContext](/engine/6000.5/script-reference/unityeditor/editortools/editortoolcontext.md) can edit. Set to null if the tool is not specific to a [Component](/engine/6000.5/script-reference/unityengine/component.md) and should be available at any time.                   |
| [toolPriority](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/toolpriority.md)                     | Tool priority defines the order that tools are displayed in within the Tools Overlay.                                                                                                                                                                                                                                                                                                                  |
| [variantGroup](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/variantgroup.md)                     | Tool variants are used to group logically similar tools into a single button in the Tools Overlay.                                                                                                                                                                                                                                                                                                     |
| [variantPriority](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/variantpriority.md)               | The variant priority defines the order that tools are displayed in when they are displayed in a [ToolAttribute.variantGroup](/engine/6000.5/script-reference/unityeditor/editortools/toolattribute/variantgroup.md) dropdown.                                                                                                                                                                          |

## Inheritance

**Inherited Members:**

* [Attribute.GetCustomAttributes(MemberInfo, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-memberinfo-system-type\))
* [Attribute.GetCustomAttributes(MemberInfo, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-memberinfo-system-type-system-boolean\))
* [Attribute.GetCustomAttributes(MemberInfo)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-memberinfo\))
* [Attribute.GetCustomAttributes(MemberInfo, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-memberinfo-system-boolean\))
* [Attribute.IsDefined(MemberInfo, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-memberinfo-system-type\))
* [Attribute.IsDefined(MemberInfo, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-memberinfo-system-type-system-boolean\))
* [Attribute.GetCustomAttribute(MemberInfo, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-memberinfo-system-type\))
* [Attribute.GetCustomAttribute(MemberInfo, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-memberinfo-system-type-system-boolean\))
* [Attribute.GetCustomAttributes(ParameterInfo)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-parameterinfo\))
* [Attribute.GetCustomAttributes(ParameterInfo, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-parameterinfo-system-type\))
* [Attribute.GetCustomAttributes(ParameterInfo, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-parameterinfo-system-type-system-boolean\))
* [Attribute.GetCustomAttributes(ParameterInfo, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-parameterinfo-system-boolean\))
* [Attribute.IsDefined(ParameterInfo, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-parameterinfo-system-type\))
* [Attribute.IsDefined(ParameterInfo, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-parameterinfo-system-type-system-boolean\))
* [Attribute.GetCustomAttribute(ParameterInfo, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-parameterinfo-system-type\))
* [Attribute.GetCustomAttribute(ParameterInfo, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-parameterinfo-system-type-system-boolean\))
* [Attribute.GetCustomAttributes(Module, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-module-system-type\))
* [Attribute.GetCustomAttributes(Module)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-module\))
* [Attribute.GetCustomAttributes(Module, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-module-system-boolean\))
* [Attribute.GetCustomAttributes(Module, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-module-system-type-system-boolean\))
* [Attribute.IsDefined(Module, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-module-system-type\))
* [Attribute.IsDefined(Module, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-module-system-type-system-boolean\))
* [Attribute.GetCustomAttribute(Module, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-module-system-type\))
* [Attribute.GetCustomAttribute(Module, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-module-system-type-system-boolean\))
* [Attribute.GetCustomAttributes(Assembly, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-assembly-system-type\))
* [Attribute.GetCustomAttributes(Assembly, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-assembly-system-type-system-boolean\))
* [Attribute.GetCustomAttributes(Assembly)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-assembly\))
* [Attribute.GetCustomAttributes(Assembly, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattributes#system-attribute-getcustomattributes\(system-reflection-assembly-system-boolean\))
* [Attribute.IsDefined(Assembly, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-assembly-system-type\))
* [Attribute.IsDefined(Assembly, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.isdefined#system-attribute-isdefined\(system-reflection-assembly-system-type-system-boolean\))
* [Attribute.GetCustomAttribute(Assembly, Type)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-assembly-system-type\))
* [Attribute.GetCustomAttribute(Assembly, Type, bool)](https://learn.microsoft.com/dotnet/api/system.attribute.getcustomattribute#system-attribute-getcustomattribute\(system-reflection-assembly-system-type-system-boolean\))
* [Attribute.Equals(Object)](https://learn.microsoft.com/dotnet/api/system.attribute.equals)
* [Attribute.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.attribute.gethashcode)
* [Attribute.Match(Object)](https://learn.microsoft.com/dotnet/api/system.attribute.match)
* [Attribute.IsDefaultAttribute()](https://learn.microsoft.com/dotnet/api/system.attribute.isdefaultattribute)
* [Attribute.TypeId()](https://learn.microsoft.com/dotnet/api/system.attribute.typeid)