diff --git a/spec.json b/spec.json
index c5edcb2..c985dd7 100644
--- a/spec.json
+++ b/spec.json
@@ -6452,7 +6452,7 @@
             "properties": {
               "type": {
                 "enum": [
-                  "Gltf"
+                  "gltf"
                 ],
                 "type": "string"
               }
@@ -6475,7 +6475,7 @@
               },
               "type": {
                 "enum": [
-                  "Step"
+                  "step"
                 ],
                 "type": "string"
               }
@@ -6499,7 +6499,7 @@
               },
               "type": {
                 "enum": [
-                  "Obj"
+                  "obj"
                 ],
                 "type": "string"
               },
@@ -6532,7 +6532,7 @@
               },
               "type": {
                 "enum": [
-                  "Ply"
+                  "ply"
                 ],
                 "type": "string"
               },
@@ -6565,7 +6565,7 @@
               },
               "type": {
                 "enum": [
-                  "Stl"
+                  "stl"
                 ],
                 "type": "string"
               },
@@ -7555,10 +7555,16 @@
                       }
                     ],
                     "description": "The file format to export to."
+                  },
+                  "scene_id": {
+                    "description": "ID of the scene or an item in the scene to be exported.",
+                    "format": "uuid",
+                    "type": "string"
                   }
                 },
                 "required": [
-                  "format"
+                  "format",
+                  "scene_id"
                 ],
                 "type": "object"
               }
@@ -7567,6 +7573,306 @@
               "Export"
             ],
             "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "What is this entity's parent?",
+            "properties": {
+              "EntityGetParentId": {
+                "properties": {
+                  "entity_id": {
+                    "description": "ID of the entity being queried.",
+                    "format": "uuid",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "entity_id"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "EntityGetParentId"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "How many children does the entity have?",
+            "properties": {
+              "EntityGetNumChildren": {
+                "properties": {
+                  "entity_id": {
+                    "description": "ID of the entity being queried.",
+                    "format": "uuid",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "entity_id"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "EntityGetNumChildren"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "What is the UUID of this entity's n-th child?",
+            "properties": {
+              "EntityGetChildUuid": {
+                "properties": {
+                  "child_index": {
+                    "description": "Index into the entity's list of children.",
+                    "format": "uint32",
+                    "minimum": 0,
+                    "type": "integer"
+                  },
+                  "entity_id": {
+                    "description": "ID of the entity being queried.",
+                    "format": "uuid",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "child_index",
+                  "entity_id"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "EntityGetChildUuid"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "What are all UUIDs of this entity's children?",
+            "properties": {
+              "EntityGetAllChildUuids": {
+                "properties": {
+                  "entity_id": {
+                    "description": "ID of the entity being queried.",
+                    "format": "uuid",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "entity_id"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "EntityGetAllChildUuids"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Enter edit mode",
+            "properties": {
+              "EditModeEnter": {
+                "properties": {
+                  "target": {
+                    "description": "The edit target",
+                    "format": "uuid",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "target"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "EditModeEnter"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Exit edit mode",
+            "properties": {
+              "EditModeExit": {
+                "type": "object"
+              }
+            },
+            "required": [
+              "EditModeExit"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Modifies the selection by simulating a \"mouse click\" at the given x,y window coordinate Returns ID of whatever was selected.",
+            "properties": {
+              "SelectWithPoint": {
+                "properties": {
+                  "selected_at_window": {
+                    "allOf": [
+                      {
+                        "$ref": "#/components/schemas/Point2d"
+                      }
+                    ],
+                    "description": "Where in the window was selected"
+                  },
+                  "selection_type": {
+                    "allOf": [
+                      {
+                        "$ref": "#/components/schemas/SceneSelectionType"
+                      }
+                    ],
+                    "description": "What entity was selected?"
+                  }
+                },
+                "required": [
+                  "selected_at_window",
+                  "selection_type"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "SelectWithPoint"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Clear the selection",
+            "properties": {
+              "SelectClear": {
+                "type": "object"
+              }
+            },
+            "required": [
+              "SelectClear"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Adds one or more entities (by UUID) to the selection.",
+            "properties": {
+              "SelectAdd": {
+                "properties": {
+                  "entities": {
+                    "description": "Which entities to select",
+                    "items": {
+                      "format": "uuid",
+                      "type": "string"
+                    },
+                    "type": "array"
+                  }
+                },
+                "required": [
+                  "entities"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "SelectAdd"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Removes one or more entities (by UUID) from the selection.",
+            "properties": {
+              "SelectRemove": {
+                "properties": {
+                  "entities": {
+                    "description": "Which entities to unselect",
+                    "items": {
+                      "format": "uuid",
+                      "type": "string"
+                    },
+                    "type": "array"
+                  }
+                },
+                "required": [
+                  "entities"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "SelectRemove"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Find all IDs of selected entities",
+            "properties": {
+              "SelectGet": {
+                "type": "object"
+              }
+            },
+            "required": [
+              "SelectGet"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Changes the current highlighted entity to whichever one is at the given window coordinate. If there's no entity at this location, clears the highlight.",
+            "properties": {
+              "HighlightSetEntity": {
+                "properties": {
+                  "selected_at_window": {
+                    "allOf": [
+                      {
+                        "$ref": "#/components/schemas/Point2d"
+                      }
+                    ],
+                    "description": "Coordinates of the window being clicked"
+                  }
+                },
+                "required": [
+                  "selected_at_window"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "HighlightSetEntity"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "description": "Changes the current highlighted entity to these entities.",
+            "properties": {
+              "HighlightSetEntities": {
+                "properties": {
+                  "entities": {
+                    "description": "Highlight these entities.",
+                    "items": {
+                      "format": "uuid",
+                      "type": "string"
+                    },
+                    "type": "array"
+                  }
+                },
+                "required": [
+                  "entities"
+                ],
+                "type": "object"
+              }
+            },
+            "required": [
+              "HighlightSetEntities"
+            ],
+            "type": "object"
           }
         ]
       },
@@ -7850,7 +8156,7 @@
               },
               "type": {
                 "enum": [
-                  "Gltf"
+                  "gltf"
                 ],
                 "type": "string"
               }
@@ -7874,7 +8180,7 @@
               },
               "type": {
                 "enum": [
-                  "Obj"
+                  "obj"
                 ],
                 "type": "string"
               }
@@ -7906,7 +8212,7 @@
               },
               "type": {
                 "enum": [
-                  "Ply"
+                  "ply"
                 ],
                 "type": "string"
               }
@@ -7931,7 +8237,7 @@
               },
               "type": {
                 "enum": [
-                  "Step"
+                  "step"
                 ],
                 "type": "string"
               }
@@ -7963,7 +8269,7 @@
               },
               "type": {
                 "enum": [
-                  "Stl"
+                  "stl"
                 ],
                 "type": "string"
               }
@@ -8665,6 +8971,32 @@
         },
         "type": "object"
       },
+      "SceneSelectionType": {
+        "description": "The type of scene selection change",
+        "oneOf": [
+          {
+            "description": "Replaces the selection",
+            "enum": [
+              "replace"
+            ],
+            "type": "string"
+          },
+          {
+            "description": "Adds to the selection",
+            "enum": [
+              "add"
+            ],
+            "type": "string"
+          },
+          {
+            "description": "Removes from the selection",
+            "enum": [
+              "remove"
+            ],
+            "type": "string"
+          }
+        ]
+      },
       "Session": {
         "description": "An authentication session.\n\nFor our UIs, these are automatically created by Next.js.",
         "properties": {