diff --git a/docs/openapi/genarrative-external-v1.openapi.json b/docs/openapi/genarrative-external-v1.openapi.json
index 0326fca0d..f0bd895b4 100644
--- a/docs/openapi/genarrative-external-v1.openapi.json
+++ b/docs/openapi/genarrative-external-v1.openapi.json
@@ -2280,6 +2280,27 @@
           "updatedAt": {
             "type": "string",
             "format": "date-time"
+          },
+          "ownerUserId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "authorDisplayName": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "authorPublicUserCode": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "publicShowcaseEnabled": {
+            "type": "boolean"
           }
         }
       },
@@ -2436,6 +2457,24 @@
           "updatedAt": {
             "type": "string",
             "format": "date-time"
+          },
+          "thumbnailSrc": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "sourceResourceId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "publicShowcaseEnabled": {
+            "type": [
+              "boolean",
+              "null"
+            ]
           }
         }
       },
@@ -2579,7 +2618,6 @@
       "EditorCanvasGenerationCompletion": {
         "type": "object",
         "required": [
-          "dialogId",
           "title",
           "placeholder"
         ],
@@ -2680,6 +2718,31 @@
               "string",
               "null"
             ]
+          },
+          "size": {
+            "type": "string"
+          },
+          "model": {
+            "type": "string"
+          },
+          "referenceImageSrcs": {
+            "type": "array",
+            "items": {
+              "type": "string",
+              "description": "图片 Data URL、asset://、OSS object key 或公网 URL。"
+            },
+            "maxItems": 8
+          },
+          "canvasCompletion": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorCanvasGenerationCompletion"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "带项目上下文生成时，服务端据此直接写入画布完成态并返回最新项目快照。"
           }
         },
         "additionalProperties": false
@@ -2791,7 +2854,8 @@
             "items": {
               "type": "string",
               "description": "额外图标素材参考图 Data URL 或 objectKey；上传参考图优先提交 objectKey。"
-            }
+            },
+            "maxItems": 8
           },
           "iconDescriptions": {
             "type": "array",
@@ -2839,6 +2903,17 @@
               "string",
               "null"
             ]
+          },
+          "canvasCompletion": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorCanvasGenerationCompletion"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "带项目上下文生成时，服务端据此直接写入画布完成态并返回最新项目快照。"
           }
         },
         "additionalProperties": false
@@ -2865,7 +2940,8 @@
             "items": {
               "type": "string",
               "description": "额外 UI 素材参考图 Data URL 或 objectKey；上传参考图优先提交 objectKey。"
-            }
+            },
+            "maxItems": 5
           },
           "aspectRatio": {
             "type": "string",
@@ -2900,6 +2976,17 @@
               "string",
               "null"
             ]
+          },
+          "canvasCompletion": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorCanvasGenerationCompletion"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "带项目上下文生成时，服务端据此直接写入画布完成态并返回最新项目快照。"
           }
         },
         "additionalProperties": false
@@ -3021,6 +3108,17 @@
                 "type": "null"
               }
             ]
+          },
+          "project": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorProject"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "当请求携带 canvasCompletion 且服务端成功写入画布布局时返回最新项目快照。"
           }
         }
       },
@@ -3097,6 +3195,32 @@
           "model": {
             "type": "string",
             "const": "seedance2.0-fast"
+          },
+          "projectId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "canvasCompletion": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorCanvasGenerationCompletion"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "带项目上下文生成时，服务端据此直接写入画布完成态并返回最新项目快照。"
+          },
+          "generationInputs": {
+            "$ref": "#/components/schemas/JsonValue"
+          },
+          "sourceResourceId": {
+            "type": [
+              "string",
+              "null"
+            ]
           }
         },
         "additionalProperties": false
@@ -3188,6 +3312,27 @@
           "priceMudPoints": {
             "type": "integer",
             "minimum": 0
+          },
+          "project": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorProject"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "当请求携带 canvasCompletion 且服务端成功写入画布布局时返回最新项目快照。"
+          },
+          "queueState": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/ExternalGenerationJobStatusRecord"
+              },
+              {
+                "type": "null"
+              }
+            ]
           }
         }
       },
@@ -3221,20 +3366,26 @@
           },
           "aspectRatio": {
             "type": "string",
-            "const": "16:9"
+            "enum": [
+              "16:9",
+              "9:16",
+              "1:1",
+              "4:3",
+              "3:4",
+              "21:9"
+            ]
           },
           "durationSeconds": {
             "type": "integer",
-            "enum": [
-              4,
-              5
-            ]
+            "minimum": 4,
+            "maximum": 15
           },
           "resolution": {
             "type": "string",
             "enum": [
               "480p",
-              "720p"
+              "720p",
+              "1080p"
             ]
           },
           "mode": {
@@ -3243,7 +3394,10 @@
           },
           "sound": {
             "type": "string",
-            "const": "off"
+            "enum": [
+              "on",
+              "off"
+            ]
           },
           "referenceImageSrcs": {
             "type": "array",
@@ -3268,6 +3422,56 @@
               "description": "公网 URL、asset://、OSS object key 或音频 Data URL。仅 Seedance 2.0 系列支持。"
             },
             "maxItems": 3
+          },
+          "webSearchEnabled": {
+            "type": "boolean",
+            "default": true,
+            "description": "是否允许视频模型联网增强提示；未传时默认开启。"
+          },
+          "projectId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "canvasCompletion": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorCanvasGenerationCompletion"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "带项目上下文生成时，服务端据此直接写入画布完成态并返回最新项目快照。"
+          },
+          "generationInputs": {
+            "$ref": "#/components/schemas/JsonValue"
+          },
+          "sourceResourceId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "assetKind": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "assetFolderId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "assetLabel": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "description": "写入素材库时使用的素材名称。"
           }
         },
         "additionalProperties": false
@@ -3347,6 +3551,53 @@
           "priceMudPoints": {
             "type": "integer",
             "minimum": 0
+          },
+          "thumbnailSrc": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "resource": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorProjectResource"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "asset": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorAsset"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "project": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorProject"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "当请求携带 canvasCompletion 且服务端成功写入画布布局时返回最新项目快照。"
+          },
+          "queueState": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/ExternalGenerationJobStatusRecord"
+              },
+              {
+                "type": "null"
+              }
+            ]
           }
         }
       },
@@ -3372,6 +3623,26 @@
             "type": "integer",
             "minimum": 2,
             "maximum": 10
+          },
+          "projectId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "canvasCompletion": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorCanvasGenerationCompletion"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "带项目上下文生成时，服务端据此直接写入画布完成态并返回最新项目快照。"
+          },
+          "generationInputs": {
+            "$ref": "#/components/schemas/JsonValue"
           }
         },
         "additionalProperties": false
@@ -3390,6 +3661,26 @@
           "makeInstrumental": {
             "type": "boolean",
             "const": true
+          },
+          "projectId": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "canvasCompletion": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorCanvasGenerationCompletion"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "带项目上下文生成时，服务端据此直接写入画布完成态并返回最新项目快照。"
+          },
+          "generationInputs": {
+            "$ref": "#/components/schemas/JsonValue"
           }
         },
         "additionalProperties": false
@@ -3468,8 +3759,75 @@
               "sound-effect",
               "background-music"
             ]
+          },
+          "project": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/EditorProject"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "当请求携带 canvasCompletion 且服务端成功写入画布布局时返回最新项目快照。"
+          },
+          "queueState": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/ExternalGenerationJobStatusRecord"
+              },
+              {
+                "type": "null"
+              }
+            ]
           }
         }
+      },
+      "ExternalGenerationJobStatusRecord": {
+        "type": "object",
+        "required": [
+          "operationId",
+          "status",
+          "phaseLabel",
+          "phaseDetail",
+          "progress",
+          "updatedAtMicros"
+        ],
+        "properties": {
+          "operationId": {
+            "type": "string"
+          },
+          "status": {
+            "type": "string",
+            "enum": [
+              "queued",
+              "running",
+              "completed",
+              "failed"
+            ]
+          },
+          "phaseLabel": {
+            "type": "string"
+          },
+          "phaseDetail": {
+            "type": "string"
+          },
+          "progress": {
+            "type": "integer",
+            "minimum": 0,
+            "maximum": 100
+          },
+          "error": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "updatedAtMicros": {
+            "type": "integer"
+          }
+        },
+        "additionalProperties": false
       }
     }
   }