app.perpetual.video WebMCP Tools, Schemas & Agent Capabilities

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app.perpetual.video

live Unverified (seed import) Media & Personal 34 tools imperative implementation

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A local-first video editor that a browser agent can edit with you.

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 9 · Act 22 · Transact 3 · Score: Not yet scored

Tool inspector

update_overlay

act imperative

Change one overlay: its timing, row, position, size, rotation, text or style. sourceStartSeconds re-points a video or sound at a different part of its own file. To move more than one overlay, use arrange_timeline instead.

Input schema

Property	Type	Required	Description
`overlayId`	integer	yes	—
`fromSeconds`	number	no	—
`durationSeconds`	number	no	—
`row`	integer	no	—
`left`	number	no	—
`top`	number	no	—
`width`	number	no	—
`height`	number	no	—
`rotation`	number	no	—
`content`	string	no	—
`sourceStartSeconds`	number	no	—
`opacity`	number	no	—
`volume`	number	no	—
`speed`	number	no	—
`color`	string	no	—
`fontSize`	string	no	—

Raw JSON schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "overlayId": {
      "type": "integer",
      "exclusiveMinimum": 0,
      "maximum": 9007199254740991
    },
    "fromSeconds": {
      "type": "number",
      "minimum": 0,
      "maximum": 3600
    },
    "durationSeconds": {
      "type": "number",
      "minimum": 0.1,
      "maximum": 3600
    },
    "row": {
      "type": "integer",
      "minimum": 0,
      "maximum": 7
    },
    "left": {
      "type": "number",
      "minimum": -20000,
      "maximum": 20000
    },
    "top": {
      "type": "number",
      "minimum": -20000,
      "maximum": 20000
    },
    "width": {
      "type": "number",
      "minimum": 1,
      "maximum": 20000
    },
    "height": {
      "type": "number",
      "minimum": 1,
      "maximum": 20000
    },
    "rotation": {
      "type": "number",
      "minimum": -3600,
      "maximum": 3600
    },
    "content": {
      "type": "string",
      "maxLength": 2000
    },
    "sourceStartSeconds": {
      "type": "number",
      "minimum": 0,
      "maximum": 36000
    },
    "opacity": {
      "type": "number",
      "minimum": 0,
      "maximum": 1
    },
    "volume": {
      "type": "number",
      "minimum": 0,
      "maximum": 1
    },
    "speed": {
      "type": "number",
      "minimum": 0.25,
      "maximum": 8
    },
    "color": {
      "type": "string",
      "maxLength": 64
    },
    "fontSize": {
      "type": "string",
      "maxLength": 20
    }
  },
  "required": [
    "overlayId"
  ],
  "additionalProperties": false
}

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