Default model tools

episode_clone

Clone an episode

Creates a clean draft branch from an existing top-level episode: a separate version for comparison or a workshop reset that the user explicitly wants. The clone copies that one episode's source-backed segments, timeline music, overlays, title/copy, aspect ratio, caption setting, and project, but it does not copy rendered media, publish state, origin recording ownership, or revision history. A new reel from Project sources is one episode_create with ordered source ranges, and an in-place change to the current draft is an episode_edit; a clone is neither.

Surface: Default model and app

Product release eb8538f4a297f331d0399351c1e175bffcd212d2
Public contract commit 20688e11af473a363145ed880d5019c90a7ec1e2
Public contract SHA-256 87a94b85a84dc19245fc03f9b544c70d64bd9f5e08585dcccb38157cace5700d
Captured 2026-10-04T11:55:45.577Z. Review or improve this contract on GitHub.

These blocks show the complete MCP descriptors captured from serving Rails. Security schemes and resource URIs can differ by connected host.

Default model descriptor

{
  "name": "episode_clone",
  "title": "Clone an episode",
  "description": "Creates a clean draft branch from an existing top-level episode: a separate version for comparison or a workshop reset that the user explicitly wants. The clone copies that one episode's source-backed segments, timeline music, overlays, title/copy, aspect ratio, caption setting, and project, but it does not copy rendered media, publish state, origin recording ownership, or revision history. A new reel from Project sources is one episode_create with ordered source ranges, and an in-place change to the current draft is an episode_edit; a clone is neither.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "episode_id": {
        "type": "string",
        "description": "Top-level episode public ID to branch from. A recording id alias (src_...) resolves to that recording's episode-of-one."
      },
      "title": {
        "type": "string",
        "description": "Optional title for the clone. Defaults to 'Copy of <source title>'."
      },
      "description": {
        "type": "string",
        "description": "Optional description for the clone. Defaults to the source episode's displayed description."
      },
      "idempotency_key": {
        "type": "string",
        "description": "Caller-stable key for safe retry of the same clone request."
      }
    },
    "required": [
      "episode_id",
      "idempotency_key"
    ],
    "additionalProperties": false
  },
  "annotations": {
    "title": "Clone an episode",
    "readOnlyHint": false,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ],
    "ui": {
      "visibility": [
        "model",
        "app"
      ]
    },
    "openai/widgetAccessible": true
  }
}

App descriptor

{
  "name": "episode_clone",
  "title": "Clone an episode",
  "description": "Creates a clean draft branch from an existing top-level episode: a separate version for comparison or a workshop reset that the user explicitly wants. The clone copies that one episode's source-backed segments, timeline music, overlays, title/copy, aspect ratio, caption setting, and project, but it does not copy rendered media, publish state, origin recording ownership, or revision history. A new reel from Project sources is one episode_create with ordered source ranges, and an in-place change to the current draft is an episode_edit; a clone is neither.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "episode_id": {
        "type": "string",
        "description": "Top-level episode public ID to branch from. A recording id alias (src_...) resolves to that recording's episode-of-one."
      },
      "title": {
        "type": "string",
        "description": "Optional title for the clone. Defaults to 'Copy of <source title>'."
      },
      "description": {
        "type": "string",
        "description": "Optional description for the clone. Defaults to the source episode's displayed description."
      },
      "idempotency_key": {
        "type": "string",
        "description": "Caller-stable key for safe retry of the same clone request."
      }
    },
    "required": [
      "episode_id",
      "idempotency_key"
    ],
    "additionalProperties": false
  },
  "annotations": {
    "title": "Clone an episode",
    "readOnlyHint": false,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ],
    "ui": {
      "visibility": [
        "model",
        "app"
      ]
    },
    "openai/widgetAccessible": true
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "episode_id": {
        "type": "string",
        "description": "New clone episode public ID."
      },
      "source_episode_id": {
        "type": "string",
        "description": "Episode public ID the clone branched from."
      },
      "cloned_from_episode_id": {
        "type": "string",
        "description": "Alias for source_episode_id for lineage displays."
      },
      "cloned_from_revision": {
        "type": "integer",
        "description": "Source episode revision captured by the clone."
      },
      "duration_seconds": {
        "type": "number",
        "description": "Kept play length in seconds."
      },
      "revision": {
        "type": "integer",
        "description": "Durable revision counter, always 1 for a fresh clone."
      },
      "segments": {
        "type": "array",
        "description": "The cloned segment manifest (index, source_id, source_range, episode_range, boundary)."
      },
      "edge_warnings": {
        "type": "array",
        "description": "Always present. Non-mutating warnings for cloned cut edges that land strictly inside transcript words.",
        "items": {
          "type": "object",
          "properties": {
            "segment_index": {
              "type": "integer"
            },
            "edge": {
              "type": "string",
              "enum": [
                "start",
                "end"
              ]
            },
            "at_seconds": {
              "type": "number",
              "description": "Recording source time for the flagged edge. This legacy field name is not Episode time."
            },
            "source_id": {
              "type": "string",
              "description": "Recording containing the flagged source edge."
            },
            "occurrence_id": {
              "type": "string",
              "description": "Exact created-target occurrence containing this edge, when mapped."
            },
            "episode_seconds": {
              "type": "number",
              "description": "Exact flagged point on the created target's Episode clock, usable directly as an episode_zoom edge; occurrence_id identifies its source side."
            },
            "word": {
              "type": "string"
            },
            "word_range_source": {
              "type": "array",
              "items": {
                "type": "number"
              },
              "minItems": 2,
              "maxItems": 2
            }
          }
        }
      },
      "status": {
        "type": "string",
        "description": "Always draft — cloned but not rendered."
      },
      "workspace_url": {
        "type": "string",
        "description": "Same-origin path that opens the new clone in the composite editor."
      },
      "already_applied": {
        "type": "boolean",
        "description": "true when this idempotency_key already created the same clone and the existing clone was returned."
      },
      "next_action": {
        "type": "object",
        "description": "Suggested next tool call: episode_edit on the clone at its current revision."
      },
      "blockers": {
        "type": "array",
        "items": {
          "type": "object"
        }
      },
      "duration": {
        "type": "number",
        "description": "Clone play length in seconds; the same value as duration_seconds."
      },
      "derived": {
        "type": "boolean",
        "description": "True when the clone is a derived Clip filed under a parent Episode; false for a clone of a top-level Episode."
      },
      "block_segments": {
        "type": "array",
        "description": "Template-backed segments carried by the clone.",
        "items": {
          "type": "object",
          "properties": {
            "position": {
              "type": "integer"
            },
            "template": {
              "type": "string"
            },
            "source_id": {
              "type": "string"
            },
            "status": {
              "type": "string",
              "enum": [
                "ready",
                "preparing",
                "failed"
              ],
              "description": "Whether the template-backed Recording is already renderable or still baking."
            }
          }
        }
      },
      "identity_plan": {
        "type": [
          "object",
          "null"
        ],
        "description": "Frozen identity plan carried from the source Episode; null when only identity warnings or row mappings were carried."
      },
      "identity_layers": {
        "type": "array",
        "description": "Resolved Signature layers of the carried identity plan, such as opener, cut style and outro."
      },
      "identity_segments": {
        "type": "array",
        "description": "Identity segment rows with role, final_position and segment_id."
      },
      "identity_warnings": {
        "type": "array",
        "items": {
          "type": "string"
        },
        "description": "Identity warnings carried from the source Episode."
      },
      "request_row_map": {
        "type": "array",
        "description": "Mapping from the source Episode's requested rows to composition positions, including segment_id."
      }
    },
    "required": [],
    "additionalProperties": false
  }
}

Live Workspace descriptor

{
  "name": "episode_clone",
  "title": "Clone an episode",
  "description": "Creates a clean draft branch from an existing top-level episode: a separate version for comparison or a workshop reset that the user explicitly wants. The clone copies that one episode's source-backed segments, timeline music, overlays, title/copy, aspect ratio, caption setting, and project, but it does not copy rendered media, publish state, origin recording ownership, or revision history. A new reel from Project sources is one episode_create with ordered source ranges, and an in-place change to the current draft is an episode_edit; a clone is neither.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "episode_id": {
        "type": "string",
        "description": "Top-level episode public ID to branch from. A recording id alias (src_...) resolves to that recording's episode-of-one."
      },
      "title": {
        "type": "string",
        "description": "Optional title for the clone. Defaults to 'Copy of <source title>'."
      },
      "description": {
        "type": "string",
        "description": "Optional description for the clone. Defaults to the source episode's displayed description."
      },
      "idempotency_key": {
        "type": "string",
        "description": "Caller-stable key for safe retry of the same clone request."
      }
    },
    "required": [
      "episode_id",
      "idempotency_key"
    ],
    "additionalProperties": false
  },
  "annotations": {
    "title": "Clone an episode",
    "readOnlyHint": false,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ]
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "episode_id": {
        "type": "string",
        "description": "New clone episode public ID."
      },
      "source_episode_id": {
        "type": "string",
        "description": "Episode public ID the clone branched from."
      },
      "cloned_from_episode_id": {
        "type": "string",
        "description": "Alias for source_episode_id for lineage displays."
      },
      "cloned_from_revision": {
        "type": "integer",
        "description": "Source episode revision captured by the clone."
      },
      "duration_seconds": {
        "type": "number",
        "description": "Kept play length in seconds."
      },
      "revision": {
        "type": "integer",
        "description": "Durable revision counter, always 1 for a fresh clone."
      },
      "segments": {
        "type": "array",
        "description": "The cloned segment manifest (index, source_id, source_range, episode_range, boundary)."
      },
      "edge_warnings": {
        "type": "array",
        "description": "Always present. Non-mutating warnings for cloned cut edges that land strictly inside transcript words.",
        "items": {
          "type": "object",
          "properties": {
            "segment_index": {
              "type": "integer"
            },
            "edge": {
              "type": "string",
              "enum": [
                "start",
                "end"
              ]
            },
            "at_seconds": {
              "type": "number",
              "description": "Recording source time for the flagged edge. This legacy field name is not Episode time."
            },
            "source_id": {
              "type": "string",
              "description": "Recording containing the flagged source edge."
            },
            "occurrence_id": {
              "type": "string",
              "description": "Exact created-target occurrence containing this edge, when mapped."
            },
            "episode_seconds": {
              "type": "number",
              "description": "Exact flagged point on the created target's Episode clock, usable directly as an episode_zoom edge; occurrence_id identifies its source side."
            },
            "word": {
              "type": "string"
            },
            "word_range_source": {
              "type": "array",
              "items": {
                "type": "number"
              },
              "minItems": 2,
              "maxItems": 2
            }
          }
        }
      },
      "status": {
        "type": "string",
        "description": "Always draft — cloned but not rendered."
      },
      "workspace_url": {
        "type": "string",
        "description": "Same-origin path that opens the new clone in the composite editor."
      },
      "already_applied": {
        "type": "boolean",
        "description": "true when this idempotency_key already created the same clone and the existing clone was returned."
      },
      "next_action": {
        "type": "object",
        "description": "Suggested next tool call: episode_edit on the clone at its current revision."
      },
      "blockers": {
        "type": "array",
        "items": {
          "type": "object"
        }
      },
      "duration": {
        "type": "number",
        "description": "Clone play length in seconds; the same value as duration_seconds."
      },
      "derived": {
        "type": "boolean",
        "description": "True when the clone is a derived Clip filed under a parent Episode; false for a clone of a top-level Episode."
      },
      "block_segments": {
        "type": "array",
        "description": "Template-backed segments carried by the clone.",
        "items": {
          "type": "object",
          "properties": {
            "position": {
              "type": "integer"
            },
            "template": {
              "type": "string"
            },
            "source_id": {
              "type": "string"
            },
            "status": {
              "type": "string",
              "enum": [
                "ready",
                "preparing",
                "failed"
              ],
              "description": "Whether the template-backed Recording is already renderable or still baking."
            }
          }
        }
      },
      "identity_plan": {
        "type": [
          "object",
          "null"
        ],
        "description": "Frozen identity plan carried from the source Episode; null when only identity warnings or row mappings were carried."
      },
      "identity_layers": {
        "type": "array",
        "description": "Resolved Signature layers of the carried identity plan, such as opener, cut style and outro."
      },
      "identity_segments": {
        "type": "array",
        "description": "Identity segment rows with role, final_position and segment_id."
      },
      "identity_warnings": {
        "type": "array",
        "items": {
          "type": "string"
        },
        "description": "Identity warnings carried from the source Episode."
      },
      "request_row_map": {
        "type": "array",
        "description": "Mapping from the source Episode's requested rows to composition positions, including segment_id."
      },
      "workspace_binding": {
        "type": "object",
        "properties": {
          "schema": {
            "type": "string",
            "enum": [
              "bitterclip.workspace-binding.v2"
            ]
          },
          "mode": {
            "type": "string",
            "enum": [
              "live_workspace"
            ]
          },
          "project_id": {
            "type": "string"
          },
          "target_kind": {
            "type": "string",
            "enum": [
              "episode",
              "clip"
            ]
          },
          "target_id": {
            "type": "string"
          },
          "revision": {
            "type": "integer"
          },
          "draft_revision": {
            "type": "string"
          },
          "workspace_url": {
            "type": "string"
          },
          "output_id": {
            "type": "string"
          },
          "output_status": {
            "type": "string",
            "enum": [
              "missing",
              "stale",
              "rendering",
              "ready",
              "failed"
            ]
          },
          "output_revision": {
            "type": "integer"
          },
          "parent_episode_id": {
            "type": "string"
          }
        },
        "required": [
          "schema",
          "mode",
          "target_kind",
          "target_id",
          "revision",
          "draft_revision",
          "workspace_url",
          "output_status"
        ],
        "additionalProperties": false
      }
    },
    "required": [],
    "additionalProperties": false
  }
}

Errors

[
  "composition_not_found",
  "recording_not_found",
  "idempotency_conflict",
  "invalid_input"
]

Examples

[
  {
    "label": "Branch an episode before trying an alternate cut",
    "input": {
      "episode_id": "comp_...",
      "title": "Workshop branch A",
      "idempotency_key": "clone-branch-a"
    }
  }
]