vercel-labs/json-render1 file

Remotion

Remotion renderer for json-render that turns JSON timeline specs into videos. Use when working with @json-render/remotion, building video compositions from JSON, creating video catalogs, or rendering AI-generated video timelines.

Specification
Skill ID
vercel-labs/json-render/remotion
Publisher
vercel-labs
Repository
json-render
Installs
0
Files
1
Synced
Sep 23, 2026
How to use it

Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.

vercel-labs/json-render/remotionInstalls these files
  • SKILL.md

What this skill tells the agent

@json-render/remotion

Remotion renderer that converts JSON timeline specs into video compositions.

Quick Start

import { Player } from "@remotion/player";
import { Renderer, type TimelineSpec } from "@json-render/remotion";

function VideoPlayer({ spec }: { spec: TimelineSpec }) {
  return (
    <Player
      component={Renderer}
      inputProps={{ spec }}
      durationInFrames={spec.composition.durationInFrames}
      fps={spec.composition.fps}
      compositionWidth={spec.composition.width}
      compositionHeight={spec.composition.height}
      controls
    />
  );
}

Using Standard Components

import { defineCatalog } from "@json-render/core";
import {
  schema,
  standardComponentDefinitions,
  standardTransitionDefinitions,
  standardEffectDefinitions,
} from "@json-render/remotion";

export const videoCatalog = defineCatalog(schema, {
  components: standardComponentDefinitions,
  transitions: standardTransitionDefinitions,
  effects: standardEffectDefinitions,
});

Adding Custom Components

import { z } from "zod";

const catalog = defineCatalog(schema, {
  components: {
    ...standardComponentDefinitions,
    MyCustomClip: {
      props: z.object({ text: z.string() }),
      type: "scene",
      defaultDuration: 90,
      description: "My custom video clip",
    },
  },
});

// Pass custom component to Renderer
<Player
  component={Renderer}
  inputProps={{
    spec,
    components: { MyCustomClip: MyCustomComponent },
  }}
/>

Timeline Spec Structure

{
  "composition": { "id": "video", "fps": 30, "width": 1920, "height": 1080, "durationInFrames": 300 },
  "tracks": [{ "id": "main", "name": "Main", "type": "video", "enabled": true }],
  "clips": [
    { "id": "clip-1", "trackId": "main", "component": "TitleCard", "props": { "title": "Hello" }, "from": 0, "durationInFrames": 90 }
  ],
  "audio": { "tracks": [] }
}

Standard Components

ComponentTypeDescription
TitleCardsceneFull-screen title with subtitle
TypingTextsceneTerminal-style typing animation
ImageSlideimageFull-screen image display
SplitScreensceneTwo-panel comparison
QuoteCardsceneQuote with attribution
StatCardsceneAnimated statistic display
TextOverlayoverlayText overlay
LowerThirdoverlayName/title overlay

Key Exports

ExportPurpose
RendererRender spec to Remotion composition
schemaTimeline schema
standardComponentsPre-built component registry
standardComponentDefinitionsCatalog definitions
useTransitionTransition animation hook
ClipWrapperWrap clips with transitions

Use this skill in a project

Open any RiverX project, search the Skills panel for vercel-labs/json-render/remotion, and install it in one click.

Use this skill