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Default model tools

fx_studio_open

Open FX Studio

Opens the live FX Studio creative workbench, optionally on a saved scene. The same view updates as its actual HTML/CSS/JavaScript source changes through scene_read, scene_write or scene_edit and as scene_preview renders images. Supports DOM, SVG, Canvas and WebGL through one programmable scene contract. Opening is read-only and does not create an effect or change production defaults. Returns a first-party studio link for hosts without app rendering. The view stays current through successive edits; only this tool opens the app.

Surface: Default model and app

Product release 185ad8f4adfa21ae055b5bd6f97968d9044480d1
Public contract commit d2ab41fab4088c07c0f6b924fa4f3c63481b936a
Public contract SHA-256 2365c73c2aef7b9f85e8434d8e29ea29f40824bc3a46a72a356155ea328757fc
Captured 2026-10-29T03:35:56.855Z. 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": "fx_studio_open",
  "title": "Open FX Studio",
  "description": "Opens the live FX Studio creative workbench, optionally on a saved scene. The same view updates as its actual HTML/CSS/JavaScript source changes through scene_read, scene_write or scene_edit and as scene_preview renders images. Supports DOM, SVG, Canvas and WebGL through one programmable scene contract. Opening is read-only and does not create an effect or change production defaults. Returns a first-party studio link for hosts without app rendering. The view stays current through successive edits; only this tool opens the app.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "scene_id": {
        "type": "string",
        "description": "Optional account-owned scene identifier; without it the effect library opens."
      }
    },
    "required": [],
    "additionalProperties": false
  },
  "annotations": {
    "title": "Open FX Studio",
    "readOnlyHint": true,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ],
    "ui": {
      "resourceUri": "ui://bitterclip/fx-studio.chatgpt-v1.html",
      "visibility": [
        "model",
        "app"
      ]
    },
    "openai/widgetAccessible": true,
    "openai/outputTemplate": "ui://bitterclip/fx-studio.chatgpt-v1.html",
    "openai/toolInvocation/invoking": "Opening FX Studio",
    "openai/toolInvocation/invoked": "FX Studio ready"
  }
}

App descriptor

{
  "name": "fx_studio_open",
  "title": "Open FX Studio",
  "description": "Opens the live FX Studio creative workbench, optionally on a saved scene. The same view updates as its actual HTML/CSS/JavaScript source changes through scene_read, scene_write or scene_edit and as scene_preview renders images. Supports DOM, SVG, Canvas and WebGL through one programmable scene contract. Opening is read-only and does not create an effect or change production defaults. Returns a first-party studio link for hosts without app rendering. The view stays current through successive edits; only this tool opens the app.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "scene_id": {
        "type": "string",
        "description": "Optional account-owned scene identifier; without it the effect library opens."
      }
    },
    "required": [],
    "additionalProperties": false
  },
  "annotations": {
    "title": "Open FX Studio",
    "readOnlyHint": true,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ],
    "ui": {
      "resourceUri": "ui://bitterclip/fx-studio.chatgpt-v1.html",
      "visibility": [
        "model",
        "app"
      ]
    },
    "openai/widgetAccessible": true,
    "openai/outputTemplate": "ui://bitterclip/fx-studio.chatgpt-v1.html",
    "openai/toolInvocation/invoking": "Opening FX Studio",
    "openai/toolInvocation/invoked": "FX Studio ready"
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "schema": {
        "type": "string"
      },
      "account_id": {
        "type": "string"
      },
      "scenes": {
        "type": "array",
        "items": {
          "type": "object"
        }
      },
      "scene": {
        "type": [
          "object",
          "null"
        ]
      },
      "studio_url": {
        "type": "string"
      },
      "has_more": {
        "type": "boolean",
        "description": "True when the account has more scenes than the listed ones."
      },
      "blockers": {
        "type": "array",
        "items": {
          "type": "object"
        },
        "description": "Typed blockers; empty when the call succeeded."
      }
    },
    "required": [],
    "additionalProperties": false
  }
}

Live Workspace descriptor

{
  "name": "fx_studio_open",
  "title": "Open FX Studio",
  "description": "Opens the live FX Studio creative workbench, optionally on a saved scene. The same view updates as its actual HTML/CSS/JavaScript source changes through scene_read, scene_write or scene_edit and as scene_preview renders images. Supports DOM, SVG, Canvas and WebGL through one programmable scene contract. Opening is read-only and does not create an effect or change production defaults. Returns a first-party studio link for hosts without app rendering. The view stays current through successive edits; only this tool opens the app.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "scene_id": {
        "type": "string",
        "description": "Optional account-owned scene identifier; without it the effect library opens."
      }
    },
    "required": [],
    "additionalProperties": false
  },
  "annotations": {
    "title": "Open FX Studio",
    "readOnlyHint": true,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ],
    "ui": {
      "resourceUri": "ui://bitterclip/fx-studio.chatgpt-v1.html",
      "visibility": [
        "model",
        "app"
      ]
    },
    "openai/widgetAccessible": true,
    "openai/outputTemplate": "ui://bitterclip/fx-studio.chatgpt-v1.html",
    "openai/toolInvocation/invoking": "Opening FX Studio",
    "openai/toolInvocation/invoked": "FX Studio ready"
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "schema": {
        "type": "string"
      },
      "account_id": {
        "type": "string"
      },
      "scenes": {
        "type": "array",
        "items": {
          "type": "object"
        }
      },
      "scene": {
        "type": [
          "object",
          "null"
        ]
      },
      "studio_url": {
        "type": "string"
      },
      "has_more": {
        "type": "boolean",
        "description": "True when the account has more scenes than the listed ones."
      },
      "blockers": {
        "type": "array",
        "items": {
          "type": "object"
        },
        "description": "Typed blockers; empty when the call succeeded."
      }
    },
    "required": [],
    "additionalProperties": false
  }
}

Errors

[
  "account_not_found",
  "invalid_input"
]

Examples

[
  {
    "label": "Open the effect library",
    "input": {}
  }
]