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Hybrid

read generation continuation inputs

generations_get-continuation

Read-onlyIdempotent

Fetch an existing generation and its workflow, inputs, assets, and parent ID so a follow-up can reuse them, such as redoing it with different audio or dubbing its output.

Instructions

Read one existing generation with the inputs it was made from (workflow, modelName, options, inputs with asset ids or urls, segments, speakers, parentGenerationId and outputMediaUrl), so a follow-up generation can reuse them, such as redoing it with other audio or dubbing its output. Use it only when the user explicitly continues an existing generation; not for polling status or getting the result url (generations_get). projectId must be the generation's own project, such as projectId from generations_get; id comes from generations_list, projects_list-generations (when available) or a create response. Then pass continuation { workflow, parentGenerationId: id } with the same projectId to lipsync_create (workflow lipsync, image_to_video or translate_and_dub), dubbing_create (translate_and_dub) or dialogue-videos_create (edit_dialogue); other workflows cannot be continued. Returns the generation whatever its status, after checking access to the project and to every asset it references; it fails if the generation is not in that project or a referenced asset is no longer accessible.

Input Schema

Name	Required	Description	Default
`id`	Yes	Id of the existing generation to continue from.
`projectId`	Yes	The generation's own project id.

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv0.2.4Nov 7, 2026

changedInput schema / properties / projectId / description

Previous value: -"Project the generation belongs to."New value: +"The generation's own project id."

Changed3 schema fields changedNov 6, 2026

addedInput schema / properties / id / description

Added value: +"Id of the existing generation to continue from."

addedInput schema / properties / projectId / description
```
Added value: +"Project the generation belongs to."
```

changedOutput schema / anyOf

Previous value: -[
-  {
-    "$schema": "https://json-schema.org/draft/2020-12/schema",
-    "additionalProperties": false,
-    "properties": {
-      "generation": {
-        "additionalProperties": false,
-        "properties": {
-          "dialogueEditJobId": {
-            "anyOf": [
-              {
-                "format": "uuid",
-                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "id": {
-            "format": "uuid",
-            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-            "type": "string"
-          },
-          "inputs": {
-            "items": {
-              "additionalProperties": false,
-              "properties": {
-                "assetId": {
-                  "format": "uuid",
-                  "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                  "type": "string"
-                },
-                "generatedBy": {
-                  "const": "tts",
-                  "type": "string"
-                },
-                "provider": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "name": {
-                      "type": "string"
-                    },
-                    "script": {
-                      "type": "string"
-                    },
-                    "similarityBoost": {
-                      "maximum": 1,
-                      "minimum": 0,
-                      "type": "number"
-                    },
-                    "stability": {
-                      "maximum": 1,
-                      "minimum": 0,
-                      "type": "number"
-                    },
-                    "voiceId": {
-                      "type": "string"
-                    }
-                  },
-                  "required": [
-                    "name",
-                    "script",
-                    "voiceId"
-                  ],
-                  "type": "object"
-                },
-                "refId": {
-                  "type": "string"
-                },
-                "segments_frames": {
-                  "items": {
-                    "items": {
-                      "type": "number"
-                    },
-                    "type": "array"
-                  },
-                  "type": "array"
-                },
-                "segments_secs": {
-                  "items": {
-                    "items": {
-                      "type": "number"
-                    },
-                    "type": "array"
-                  },
-                  "type": "array"
-                },
-                "trim_secs": {
-                  "items": {
-                    "type": "number"
-                  },
-                  "type": "array"
-                },
-                "type": {
-                  "enum": [
-                    "video",
-                    "image",
-                    "audio",
-                    "text"
-                  ],
-                  "type": "string"
-                },
-                "url": {
-                  "format": "uri",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type"
-              ],
-              "type": "object"
-            },
-            "type": "array"
-          },
-          "modelName": {
-            "minLength": 1,
-            "type": "string"
-          },
-          "options": {
-            "additionalProperties": false,
-            "properties": {
-              "active_speaker_detection": {
-                "anyOf": [
-                  {
-                    "type": "boolean"
-                  },
-                  {
-                    "additionalProperties": false,
-                    "properties": {
-                      "auto_detect": {
-                        "type": "boolean"
-                      },
-                      "bounding_boxes": {
-                        "items": {
-                          "anyOf": [
-                            {
-                              "items": {
-                                "type": "number"
-                              },
-                              "type": "array"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ]
-                        },
-                        "type": "array"
-                      },
-                      "bounding_boxes_url": {
-                        "format": "uri",
-                        "type": "string"
-                      },
-                      "coordinates": {
-                        "items": false,
-                        "maxItems": 2,
-                        "minItems": 2,
-                        "prefixItems": [
-                          {
-                            "type": "number"
-                          },
-                          {
-                            "type": "number"
-                          }
-                        ],
-                        "type": "array"
-                      },
-                      "face_image": {
-                        "type": "string"
-                      },
-                      "frame_number": {
-                        "type": "number"
-                      },
-                      "use_v2": {
-                        "type": "boolean"
-                      },
-                      "v3": {
-                        "type": "boolean"
-                      }
-                    },
-                    "type": "object"
-                  }
-                ]
-              },
-              "model_mode": {
-                "type": "string"
-              },
-              "occlusion_detection_enabled": {
-                "type": "boolean"
-              },
-              "reasoning_enabled": {
-                "description": "Only lipsync-2-pro supports reasoning; it is ignored for other models.",
-                "type": "boolean"
-              },
-              "sync_mode": {
-                "enum": [
-                  "bounce",
-                  "loop",
-                  "cut_off",
-                  "silence",
-                  "remap"
-                ],
-                "type": "string"
-              },
-              "temperature": {
-                "anyOf": [
-                  {
-                    "maximum": 1,
-                    "minimum": 0,
-                    "type": "number"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              }
-            },
-            "type": "object"
-          },
-          "outputMediaUrl": {
-            "anyOf": [
-              {
-                "format": "uri",
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "parentGenerationId": {
-            "anyOf": [
-              {
-                "format": "uuid",
-                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "projectId": {
-            "format": "uuid",
-            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-            "type": "string"
-          },
-          "renderedFromAssetId": {
-            "anyOf": [
-              {
-                "format": "uuid",
-                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "segments": {
-            "anyOf": [
-              {
-                "items": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "audioInput": {
-                      "additionalProperties": false,
-                      "properties": {
-                        "endTime": {
-                          "type": "number"
-                        },
-                        "refId": {
-                          "type": "string"
-                        },
-                        "startTime": {
-                          "type": "number"
-                        }
-                      },
-                      "required": [
-                        "refId"
-                      ],
-                      "type": "object"
-                    },
-                    "endFrame": {
-                      "type": "number"
-                    },
-                    "endTime": {
-                      "type": "number"
-                    },
-                    "optionsOverride": {
-                      "additionalProperties": false,
-                      "properties": {
-                        "active_speaker_detection": {
-                          "anyOf": [
-                            {
-                              "type": "boolean"
-                            },
-                            {
-                              "additionalProperties": false,
-                              "properties": {
-                                "auto_detect": {
-                                  "type": "boolean"
-                                },
-                                "bounding_boxes": {
-                                  "items": {
-                                    "anyOf": [
-                                      {
-                                        "items": {
-                                          "type": "number"
-                                        },
-                                        "type": "array"
-                                      },
-                                      {
-                                        "type": "null"
-                                      }
-                                    ]
-                                  },
-                                  "type": "array"
-                                },
-                                "bounding_boxes_url": {
-                                  "format": "uri",
-                                  "type": "string"
-                                },
-                                "coordinates": {
-                                  "items": false,
-                                  "maxItems": 2,
-                                  "minItems": 2,
-                                  "prefixItems": [
-                                    {
-                                      "type": "number"
-                                    },
-                                    {
-                                      "type": "number"
-                                    }
-                                  ],
-                                  "type": "array"
-                                },
-                                "face_image": {
-                                  "type": "string"
-                                },
-                                "frame_number": {
-                                  "type": "number"
-                                },
-                                "use_v2": {
-                                  "type": "boolean"
-                                },
-                                "v3": {
-                                  "type": "boolean"
-                                }
-                              },
-                              "type": "object"
-                            }
-                          ]
-                        },
-                        "model_mode": {
-                          "type": "string"
-                        },
-                        "occlusion_detection_enabled": {
-                          "type": "boolean"
-                        },
-                        "reasoning_enabled": {
-                          "description": "Only lipsync-2-pro supports reasoning; it is ignored for other models.",
-                          "type": "boolean"
-                        },
-                        "sync_mode": {
-                          "enum": [
-                            "bounce",
-                            "loop",
-                            "cut_off",
-                            "silence",
-                            "remap"
-                          ],
-                          "type": "string"
-                        },
-                        "temperature": {
-                          "anyOf": [
-                            {
-                              "maximum": 1,
-                              "minimum": 0,
-                              "type": "number"
-                            },
-                            {
-                              "type": "null"
-                            }
-                          ]
-                        }
-                      },
-                      "type": "object"
-                    },
-                    "startFrame": {
-                      "type": "number"
-                    },
-                    "startTime": {
-                      "type": "number"
-                    }
-                  },
-                  "type": "object"
-                },
-                "type": "array"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "speakers": {
-            "anyOf": [
-              {
-                "items": {
-                  "additionalProperties": false,
-                  "properties": {
-                    "audio": {
-                      "additionalProperties": false,
-                      "properties": {
-                        "endTime": {
-                          "type": "number"
-                        },
-                        "refId": {
-                          "type": "string"
-                        },
-                        "startTime": {
-                          "type": "number"
-                        }
-                      },
-                      "required": [
-                        "refId"
-                      ],
-                      "type": "object"
-                    },
-                    "face": {
-                      "additionalProperties": false,
-                      "properties": {
-                        "bounding_boxes": {
-                          "items": {
-                            "anyOf": [
-                              {
-                                "items": {
-                                  "type": "number"
-                                },
-                                "type": "array"
-                              },
-                              {
-                                "type": "null"
-                              }
-                            ]
-                          },
-                          "type": "array"
-                        },
-                        "bounding_boxes_url": {
-                          "format": "uri",
-                          "type": "string"
-                        },
-                        "coordinates": {
-                          "items": false,
-                          "maxItems": 2,
-                          "minItems": 2,
-                          "prefixItems": [
-                            {
-                              "type": "number"
-                            },
-                            {
-                              "type": "number"
-                            }
-                          ],
-                          "type": "array"
-                        },
-                        "face_image": {
-                          "type": "string"
-                        },
-                        "frame_number": {
-                          "type": "number"
-                        },
-                        "use_v2": {
-                          "type": "boolean"
-                        },
-                        "v3": {
-                          "type": "boolean"
-                        }
-                      },
-                      "type": "object"
-                    },
-                    "id": {
-                      "type": "string"
-                    }
-                  },
-                  "required": [
-                    "id",
-                    "audio",
-                    "face"
-                  ],
-                  "type": "object"
-                },
-                "type": "array"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "status": {
-            "enum": [
-              "PENDING",
-              "PROCESSING",
-              "COMPLETED",
-              "FAILED",
-              "REJECTED"
-            ],
-            "type": "string"
-          },
-          "workflow": {
-            "anyOf": [
-              {
-                "enum": [
-                  "lipsync",
-                  "translate_and_dub",
-                  "image_to_video",
-                  "edit_dialogue",
-                  "change_appearance",
-                  "timeline",
-                  "assistant"
-                ],
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          }
-        },
-        "required": [
-          "id",
-          "projectId",
-          "status",
-          "modelName",
-          "options",
-          "inputs"
-        ],
-        "type": "object"
-      },
-      "submissionContextVersion": {
-        "const": 1,
-        "type": "number"
-      }
-    },
-    "required": [
-      "submissionContextVersion",
-      "generation"
-    ],
-    "type": "object"
-  },
-  {
-    "$schema": "https://json-schema.org/draft/2020-12/schema",
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "additionalProperties": false,
-        "properties": {
-          "code": {
-            "type": "string"
-          },
-          "generationId": {
-            "type": "string"
-          },
-          "importJobId": {
-            "format": "uuid",
-            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
-            "type": "string"
-          },
-          "importStatus": {
-            "enum": [
-              "queued",
-              "downloading",
-              "processing",
-              "completed",
-              "failed"
-            ],
-            "type": "string"
-          },
-          "message": {
-            "type": "string"
-          },
-          "progress": {
-            "maximum": 100,
-            "minimum": 0,
-            "type": "number"
-          },
-          "retryAfterMs": {
-            "type": "number"
-          },
-          "retryable": {
-            "type": "boolean"
-          },
-          "status": {
-            "maximum": 9007199254740991,
-            "minimum": -9007199254740991,
-            "type": "integer"
-          }
-        },
-        "required": [
-          "message"
-        ],
-        "type": "object"
-      }
-    },
-    "required": [
-      "error"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "additionalProperties": false,
+    "properties": {
+      "generation": {
+        "additionalProperties": false,
+        "properties": {
+          "dialogueEditJobId": {
+            "anyOf": [
+              {
+                "format": "uuid",
+                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "id": {
+            "format": "uuid",
+            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+            "type": "string"
+          },
+          "inputs": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "assetId": {
+                  "format": "uuid",
+                  "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+                  "type": "string"
+                },
+                "generatedBy": {
+                  "const": "tts",
+                  "type": "string"
+                },
+                "provider": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "name": {
+                      "type": "string"
+                    },
+                    "script": {
+                      "type": "string"
+                    },
+                    "similarityBoost": {
+                      "maximum": 1,
+                      "minimum": 0,
+                      "type": "number"
+                    },
+                    "stability": {
+                      "maximum": 1,
+                      "minimum": 0,
+                      "type": "number"
+                    },
+                    "voiceId": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "name",
+                    "script",
+                    "voiceId"
+                  ],
+                  "type": "object"
+                },
+                "refId": {
+                  "type": "string"
+                },
+                "segments_frames": {
+                  "items": {
+                    "items": {
+                      "type": "number"
+                    },
+                    "type": "array"
+                  },
+                  "type": "array"
+                },
+                "segments_secs": {
+                  "items": {
+                    "items": {
+                      "type": "number"
+                    },
+                    "type": "array"
+                  },
+                  "type": "array"
+                },
+                "trim_secs": {
+                  "items": {
+                    "type": "number"
+                  },
+                  "type": "array"
+                },
+                "type": {
+                  "enum": [
+                    "video",
+                    "image",
+                    "audio",
+                    "text"
+                  ],
+                  "type": "string"
+                },
+                "url": {
+                  "format": "uri",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "modelName": {
+            "minLength": 1,
+            "type": "string"
+          },
+          "options": {
+            "additionalProperties": false,
+            "properties": {
+              "active_speaker_detection": {
+                "anyOf": [
+                  {
+                    "type": "boolean"
+                  },
+                  {
+                    "additionalProperties": false,
+                    "properties": {
+                      "auto_detect": {
+                        "description": "Find the person speaking automatically.",
+                        "type": "boolean"
+                      },
+                      "bounding_boxes": {
+                        "items": {
+                          "anyOf": [
+                            {
+                              "items": {
+                                "type": "number"
+                              },
+                              "type": "array"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ]
+                        },
+                        "type": "array"
+                      },
+                      "bounding_boxes_url": {
+                        "format": "uri",
+                        "type": "string"
+                      },
+                      "coordinates": {
+                        "description": "[x, y] pixel position of the speaker's face on frame_number.",
+                        "items": false,
+                        "maxItems": 2,
+                        "minItems": 2,
+                        "prefixItems": [
+                          {
+                            "type": "number"
+                          },
+                          {
+                            "type": "number"
+                          }
+                        ],
+                        "type": "array"
+                      },
+                      "face_image": {
+                        "description": "URL of a reference image of the speaker's face.",
+                        "type": "string"
+                      },
+                      "frame_number": {
+                        "type": "number"
+                      },
+                      "use_v2": {
+                        "description": "Use the second-generation speaker detector.",
+                        "type": "boolean"
+                      },
+                      "v3": {
+                        "description": "Use the third-generation speaker detector.",
+                        "type": "boolean"
+                      }
+                    },
+                    "type": "object"
+                  }
+                ]
+              },
+              "model_mode": {
+                "type": "string"
+              },
+              "occlusion_detection_enabled": {
+                "description": "Keep hands, microphones and other objects that pass in front of the mouth in front of it. Slower.",
+                "type": "boolean"
+              },
+              "reasoning_enabled": {
+                "description": "Only lipsync-2-pro supports reasoning; it is ignored for other models.",
+                "type": "boolean"
+              },
+              "sync_mode": {
+                "description": "How to fit audio and video of different lengths: bounce (play the video forward, then in reverse), loop, cut_off (stop at the shorter input), silence (pad with silence to the longer input) or remap (change the video speed to match the audio).",
+                "enum": [
+                  "bounce",
+                  "loop",
+                  "cut_off",
+                  "silence",
+                  "remap"
+                ],
+                "type": "string"
+              },
+              "temperature": {
+                "anyOf": [
+                  {
+                    "maximum": 1,
+                    "minimum": 0,
+                    "type": "number"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ],
+                "description": "How expressive the mouth movement is, from 0 to 1. Omit for the model default."
+              }
+            },
+            "type": "object"
+          },
+          "outputMediaUrl": {
+            "anyOf": [
+              {
+                "format": "uri",
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "parentGenerationId": {
+            "anyOf": [
+              {
+                "format": "uuid",
+                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "projectId": {
+            "format": "uuid",
+            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+            "type": "string"
+          },
+          "renderedFromAssetId": {
+            "anyOf": [
+              {
+                "format": "uuid",
+                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "segments": {
+            "anyOf": [
+              {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "audioInput": {
+                      "additionalProperties": false,
+                      "properties": {
+                        "endTime": {
+                          "type": "number"
+                        },
+                        "refId": {
+                          "type": "string"
+                        },
+                        "startTime": {
+                          "type": "number"
+                        }
+                      },
+                      "required": [
+                        "refId"
+                      ],
+                      "type": "object"
+                    },
+                    "endFrame": {
+                      "type": "number"
+                    },
+                    "endTime": {
+                      "type": "number"
+                    },
+                    "optionsOverride": {
+                      "additionalProperties": false,
+                      "properties": {
+                        "active_speaker_detection": {
+                          "anyOf": [
+                            {
+                              "type": "boolean"
+                            },
+                            {
+                              "additionalProperties": false,
+                              "properties": {
+                                "auto_detect": {
+                                  "description": "Find the person speaking automatically.",
+                                  "type": "boolean"
+                                },
+                                "bounding_boxes": {
+                                  "items": {
+                                    "anyOf": [
+                                      {
+                                        "items": {
+                                          "type": "number"
+                                        },
+                                        "type": "array"
+                                      },
+                                      {
+                                        "type": "null"
+                                      }
+                                    ]
+                                  },
+                                  "type": "array"
+                                },
+                                "bounding_boxes_url": {
+                                  "format": "uri",
+                                  "type": "string"
+                                },
+                                "coordinates": {
+                                  "description": "[x, y] pixel position of the speaker's face on frame_number.",
+                                  "items": false,
+                                  "maxItems": 2,
+                                  "minItems": 2,
+                                  "prefixItems": [
+                                    {
+                                      "type": "number"
+                                    },
+                                    {
+                                      "type": "number"
+                                    }
+                                  ],
+                                  "type": "array"
+                                },
+                                "face_image": {
+                                  "description": "URL of a reference image of the speaker's face.",
+                                  "type": "string"
+                                },
+                                "frame_number": {
+                                  "type": "number"
+                                },
+                                "use_v2": {
+                                  "description": "Use the second-generation speaker detector.",
+                                  "type": "boolean"
+                                },
+                                "v3": {
+                                  "description": "Use the third-generation speaker detector.",
+                                  "type": "boolean"
+                                }
+                              },
+                              "type": "object"
+                            }
+                          ]
+                        },
+                        "model_mode": {
+                          "type": "string"
+                        },
+                        "occlusion_detection_enabled": {
+                          "description": "Keep hands, microphones and other objects that pass in front of the mouth in front of it. Slower.",
+                          "type": "boolean"
+                        },
+                        "reasoning_enabled": {
+                          "description": "Only lipsync-2-pro supports reasoning; it is ignored for other models.",
+                          "type": "boolean"
+                        },
+                        "sync_mode": {
+                          "description": "How to fit audio and video of different lengths: bounce (play the video forward, then in reverse), loop, cut_off (stop at the shorter input), silence (pad with silence to the longer input) or remap (change the video speed to match the audio).",
+                          "enum": [
+                            "bounce",
+                            "loop",
+                            "cut_off",
+                            "silence",
+                            "remap"
+                          ],
+                          "type": "string"
+                        },
+                        "temperature": {
+                          "anyOf": [
+                            {
+                              "maximum": 1,
+                              "minimum": 0,
+                              "type": "number"
+                            },
+                            {
+                              "type": "null"
+                            }
+                          ],
+                          "description": "How expressive the mouth movement is, from 0 to 1. Omit for the model default."
+                        }
+                      },
+                      "type": "object"
+                    },
+                    "startFrame": {
+                      "type": "number"
+                    },
+                    "startTime": {
+                      "type": "number"
+                    }
+                  },
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "speakers": {
+            "anyOf": [
+              {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "audio": {
+                      "additionalProperties": false,
+                      "properties": {
+                        "endTime": {
+                          "type": "number"
+                        },
+                        "refId": {
+                          "type": "string"
+                        },
+                        "startTime": {
+                          "type": "number"
+                        }
+                      },
+                      "required": [
+                        "refId"
+                      ],
+                      "type": "object"
+                    },
+                    "face": {
+                      "additionalProperties": false,
+                      "properties": {
+                        "bounding_boxes": {
+                          "items": {
+                            "anyOf": [
+                              {
+                                "items": {
+                                  "type": "number"
+                                },
+                                "type": "array"
+                              },
+                              {
+                                "type": "null"
+                              }
+                            ]
+                          },
+                          "type": "array"
+                        },
+                        "bounding_boxes_url": {
+                          "format": "uri",
+                          "type": "string"
+                        },
+                        "coordinates": {
+                          "description": "[x, y] pixel position of the speaker's face on frame_number.",
+                          "items": false,
+                          "maxItems": 2,
+                          "minItems": 2,
+                          "prefixItems": [
+                            {
+                              "type": "number"
+                            },
+                            {
+                              "type": "number"
+                            }
+                          ],
+                          "type": "array"
+                        },
+                        "face_image": {
+                          "description": "URL of a reference image of the speaker's face.",
+                          "type": "string"
+                        },
+                        "frame_number": {
+                          "type": "number"
+                        },
+                        "use_v2": {
+                          "description": "Use the second-generation speaker detector.",
+                          "type": "boolean"
+                        },
+                        "v3": {
+                          "description": "Use the third-generation speaker detector.",
+                          "type": "boolean"
+                        }
+                      },
+                      "type": "object"
+                    },
+                    "id": {
+                      "type": "string"
+                    }
+                  },
+                  "required": [
+                    "id",
+                    "audio",
+                    "face"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "status": {
+            "enum": [
+              "PENDING",
+              "PROCESSING",
+              "COMPLETED",
+              "FAILED",
+              "REJECTED"
+            ],
+            "type": "string"
+          },
+          "workflow": {
+            "anyOf": [
+              {
+                "enum": [
+                  "lipsync",
+                  "translate_and_dub",
+                  "image_to_video",
+                  "edit_dialogue",
+                  "change_appearance",
+                  "timeline",
+                  "assistant"
+                ],
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          }
+        },
+        "required": [
+          "id",
+          "projectId",
+          "status",
+          "modelName",
+          "options",
+          "inputs"
+        ],
+        "type": "object"
+      },
+      "submissionContextVersion": {
+        "const": 1,
+        "type": "number"
+      }
+    },
+    "required": [
+      "submissionContextVersion",
+      "generation"
+    ],
+    "type": "object"
+  },
+  {
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "additionalProperties": false,
+        "properties": {
+          "code": {
+            "type": "string"
+          },
+          "generationId": {
+            "type": "string"
+          },
+          "importJobId": {
+            "format": "uuid",
+            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
+            "type": "string"
+          },
+          "importStatus": {
+            "enum": [
+              "queued",
+              "downloading",
+              "processing",
+              "completed",
+              "failed"
+            ],
+            "type": "string"
+          },
+          "message": {
+            "type": "string"
+          },
+          "progress": {
+            "maximum": 100,
+            "minimum": 0,
+            "type": "number"
+          },
+          "retryAfterMs": {
+            "type": "number"
+          },
+          "retryable": {
+            "type": "boolean"
+          },
+          "status": {
+            "maximum": 9007199254740991,
+            "minimum": -9007199254740991,
+            "type": "integer"
+          }
+        },
+        "required": [
+          "message"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "error"
+    ],
+    "type": "object"
+  }
+]

Addedv0.1.5Nov 6, 2026

TDQS

A4.8/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Beyond the readOnly and idempotent annotations, the description discloses that it returns the generation regardless of status after checking project and asset access. It also states concrete failure conditions: the generation must belong to the supplied project, and every referenced asset must still be accessible.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with the core purpose and then proceeds logically through usage, parameter sourcing, downstream continuation, and return behavior. It is dense and has a long parenthetical field list, but nearly every clause adds useful operational detail.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a read-only continuation utility with an output schema, the description covers the key missing context: access checks, failure conditions, status-independent returns, and which downstream create tools can consume the continuation. Nothing essential for correct invocation appears to be omitted.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is already 100%, so the schema defines both parameters. The description adds important operational meaning by explaining that projectId must be the generation's own project and by naming valid sources for id, such as generations_list, projects_list-generations, or a create response.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource: reading one existing generation together with the inputs it was made from. It explicitly distinguishes this from generations_get by saying it is not for polling status or getting the result URL, so an agent can select it confidently.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives explicit when-to-use guidance: only when the user explicitly continues an existing generation. It also names the alternative generations_get for status and result URL, and lists exactly which create tools accept the returned continuation payload and for which workflows.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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