Kursach_StealthAction/.opencode/skills/navigation-modifier-add/SKILL.md

name	description	metadata
navigation-modifier-add	Add and configure a `NavMeshModifier` on a GameObject. A NavMeshModifier overrides how that object (and optionally its children) is treated during baking — its NavMesh area, whether it is ignored, and link generation.	generated-by mcp-plugin-dotnet

Navigation / Add NavMeshModifier

Add a NavMeshModifier to a GameObject so its geometry is baked with overridden parameters.

Inputs

• gameObjectRef — the GameObject to add the modifier to (required).
• overrideArea — when true, the object's NavMesh area is overridden with area.
• area — the NavMesh area index to assign when overrideArea is true (default 0 = Walkable).
• ignoreFromBuild — when true, the object is excluded from the bake entirely.
• applyToChildren — when true, the override also applies to child objects.

Behavior

Adds (or reuses) a NavMeshModifier, assigns the configured flags, marks the scene dirty, and repaints. Runs on the Unity main thread.

How to Call

unity-mcp-cli run-tool navigation-modifier-add --input '{
  "gameObjectRef": "string_value",
  "overrideArea": false,
  "area": 0,
  "ignoreFromBuild": false,
  "applyToChildren": false
}'

For complex input (multi-line strings, code), save the JSON to a file and use:

unity-mcp-cli run-tool navigation-modifier-add --input-file args.json

Or pipe via stdin (recommended):

unity-mcp-cli run-tool navigation-modifier-add --input-file - <<'EOF'
{"param": "value"}
EOF

Troubleshooting

If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead. Read the /unity-initial-setup skill for detailed installation instructions.

Input

Name	Type	Required	Description
gameObjectRef	any	Yes	Reference to the GameObject to add the NavMeshModifier to.
overrideArea	boolean	No	If true, override the NavMesh area of this object with 'area'.
area	integer	No	NavMesh area index to assign when overrideArea is true (0 = Walkable).
ignoreFromBuild	boolean	No	If true, exclude this object from the NavMesh bake.
applyToChildren	boolean	No	If true, apply the override to child objects as well.

Input JSON Schema

{
  "type": "object",
  "properties": {
    "gameObjectRef": {
      "$ref": "#/$defs/AIGD.GameObjectRef"
    },
    "overrideArea": {
      "type": "boolean"
    },
    "area": {
      "type": "integer"
    },
    "ignoreFromBuild": {
      "type": "boolean"
    },
    "applyToChildren": {
      "type": "boolean"
    }
  },
  "$defs": {
    "UnityEngine.EntityId": {
      "type": "string",
      "pattern": "^[0-9]+$"
    },
    "System.Type": {
      "type": "string"
    },
    "AIGD.GameObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "$ref": "#/$defs/UnityEngine.EntityId",
          "description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
        },
        "path": {
          "type": "string",
          "description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
        },
        "name": {
          "type": "string",
          "description": "Name of a GameObject in hierarchy. Priority: 3."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Find GameObject in opened Prefab or in the active Scene."
    }
  },
  "required": [
    "gameObjectRef"
  ]
}

Output

Output JSON Schema

{
  "type": "object",
  "properties": {
    "result": {
      "$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Editor.API.Tool_Navigation-ModifierAddResponse"
    }
  },
  "$defs": {
    "AIGD.GameObjectRef": {
      "type": "object",
      "properties": {
        "instanceID": {
          "$ref": "#/$defs/UnityEngine.EntityId",
          "description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
        },
        "path": {
          "type": "string",
          "description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
        },
        "name": {
          "type": "string",
          "description": "Name of a GameObject in hierarchy. Priority: 3."
        },
        "assetType": {
          "$ref": "#/$defs/System.Type",
          "description": "Type of the asset."
        },
        "assetPath": {
          "type": "string",
          "description": "Path to the asset within the project. Starts with 'Assets/'"
        },
        "assetGuid": {
          "type": "string",
          "description": "Unique identifier for the asset."
        }
      },
      "required": [
        "instanceID"
      ],
      "description": "Find GameObject in opened Prefab or in the active Scene."
    },
    "UnityEngine.EntityId": {
      "type": "string",
      "pattern": "^[0-9]+$"
    },
    "System.Type": {
      "type": "string"
    },
    "AIGD.ComponentRef": {
      "type": "object",
      "properties": {
        "index": {
          "type": "integer",
          "description": "Component 'index' attached to a gameObject. The first index is '0' and that is usually Transform or RectTransform. Priority: 2. Default value is -1."
        },
        "typeName": {
          "type": "string",
          "description": "Component type full name. Sample 'UnityEngine.Transform'. If the gameObject has two components of the same type, the output component is unpredictable. Priority: 3. Default value is null."
        },
        "instanceID": {
          "$ref": "#/$defs/UnityEngine.EntityId",
          "description": "instanceID of the UnityEngine.Object. If this is '0', then it will be used as 'null'."
        }
      },
      "required": [
        "index",
        "instanceID"
      ],
      "description": "Component reference. Used to find a Component at GameObject."
    },
    "com.IvanMurzak.Unity.MCP.Editor.API.Tool_Navigation-ModifierAddResponse": {
      "type": "object",
      "properties": {
        "gameObjectRef": {
          "$ref": "#/$defs/AIGD.GameObjectRef",
          "description": "Reference to the GameObject hosting the modifier."
        },
        "modifierRef": {
          "$ref": "#/$defs/AIGD.ComponentRef",
          "description": "Reference to the NavMeshModifier component."
        },
        "overrideArea": {
          "type": "boolean",
          "description": "Resolved overrideArea flag."
        },
        "area": {
          "type": "integer",
          "description": "Resolved area index."
        },
        "ignoreFromBuild": {
          "type": "boolean",
          "description": "Resolved ignoreFromBuild flag."
        },
        "applyToChildren": {
          "type": "boolean",
          "description": "Resolved applyToChildren flag."
        },
        "success": {
          "type": "boolean",
          "description": "Whether the operation succeeded."
        }
      },
      "required": [
        "overrideArea",
        "area",
        "ignoreFromBuild",
        "applyToChildren",
        "success"
      ]
    }
  },
  "required": [
    "result"
  ]
}