# fx_template_preview

Canonical HTML page: https://bitterclip.com/docs/assistants/tools/fx_template_preview

Surface: app-only

Product release: 1dce717408a55fac1047e7d779177fa3ef8ede51
Public contract commit: 1ce47f7857ae3d9b6933fe83d5c33de3ae5efc64
Public contract SHA-256: 241d47d25e4b4c1dae9d2263793874d06fc4ba7bc3c78d4cf2bc63fbb32ed7dc
Descriptor SHA-256: 885d46f3ca3939dec2ace0cd6e93611c8b3f741f2d8f7a82e0adfe1452cc9a9e
Captured: 2026-09-24T16:39:30.100Z
Source: https://app.bitterclip.com/api/v1/mcp_descriptors.json

App-only, provider-free preview of one checked-in opener or outro template using its exact supported details. Returns the canonical renderer HTML without creating media or changing an Episode.

The JSON blocks below are the exact MCP descriptor projections served by Rails for the named profiles at capture time. Security schemes and resource URIs may vary by connected host.

## App descriptor

```json
{
  "name": "fx_template_preview",
  "title": "Preview an FX template",
  "description": "App-only, provider-free preview of one checked-in opener or outro template using its exact supported details. Returns the canonical renderer HTML without creating media or changing an Episode.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "project_id": {
        "type": "string",
        "description": "Project public ID."
      },
      "template_key": {
        "type": "string",
        "description": "Key from identity_read_project.options.fx_templates."
      },
      "params": {
        "type": "object",
        "properties": {
          "title": {
            "type": "string",
            "maxLength": 120
          },
          "subtitle": {
            "type": "string",
            "maxLength": 180
          },
          "accent": {
            "type": "string",
            "pattern": "^#[0-9A-Fa-f]{6}$"
          },
          "sting": {
            "type": "string",
            "enum": [
              "none",
              "chime",
              "bass",
              "glitch",
              "shutter"
            ]
          }
        },
        "additionalProperties": false
      },
      "aspect_ratio": {
        "type": "string",
        "enum": [
          "9:16",
          "16:9",
          "1:1"
        ]
      }
    },
    "required": [
      "project_id",
      "template_key"
    ],
    "additionalProperties": false
  },
  "annotations": {
    "readOnlyHint": true,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ],
    "ui": {
      "visibility": [
        "app"
      ]
    },
    "openai/widgetAccessible": true,
    "openai/visibility": "private"
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "schema": {
        "type": "string"
      },
      "project_id": {
        "type": "string"
      },
      "template": {
        "type": "object"
      },
      "aspect_ratio": {
        "type": "string"
      },
      "canvas": {
        "type": "object"
      },
      "html": {
        "type": "string"
      },
      "receipt": {
        "type": "object"
      }
    },
    "required": [],
    "additionalProperties": false
  }
}
```

## Errors

```json
[
  "project_not_found",
  "invalid_input"
]
```

## Examples

```json
[]
```