Free template · Brand

Prompt Box

The AI chat composer: a rounded field with a welded gradient outline sweeping the edge, your prompt typing itself in with real keyboard sound, and a send button that lights up when the text lands. For videos about prompting, where showing the prompt beats describing it.

Design

Aspect ratio

How to use it

Put this in your video

Videos about prompting, where showing the prompt beats describing it. Paste this into Claude Code, Codex, or any coding agent.

Prompt

Use the OverlayMotion video templates from https://github.com/ricardo/overlay-motion Add the Prompt Box template typing out "Please add subtitles to this video", hint "OverlayMotion agent", centered, with the keyboard sound.

Have ready: The prompt text, and the assistant name for the hint line.
Works over any clip, and still renders with no clip at all.
Defaults to the center of the frame for about 5 seconds. Ask for another spot, a start time, or a longer hold.
A correction is one sentence: “Type it more slowly and start at 2s.”

Read the full quick start

Technical reference: props, spec knobs and JSON

Template props

Inputs

Everything inside the overlay's props. Omit one and its default applies.

texttextRequired

What gets typed into the box, character by character

placeholdertextDefault "Ask anything"

Shown before the first character lands, and never after

hinttextOptional

Small chip on the bottom row: the model, the agent, the mode

typeStartSecnumberDefault 0.35

Seconds from the overlay's own start until the first character

typeSecnumberOptional

How long the full string takes to type. Unset, the spec's time.appear budgets it; without that, the character count does.

carettrue / falseDefault true

Solid while typing, blinking once the text lands

borderWidthnumberDefault 5

Welded outline thickness, design pixels at a 1080px short edge

sweepSecnumberDefault 4

Seconds per revolution of the arc around the outline

glowtrue / falseDefault true

Bleed the hot arc past the stroke. Off draws the stroke alone.

entranceslide-up | pop | fade | noneDefault "slide-up"

Native entrance. slide-up rises from below while fading in. Set none when the spec drives the arrival with enter or a camera move.

typingSfxfalse | cue name | file pathDefault "keyboard-typing-natural"

Recorded keyboard typing under the characters, held for exactly as long as typing lasts. false types in silence.

All 46 accepted values

falsepopbubbletickdingwhooshkeyboard-typing-naturalmouse-click-pressmouse-click-releasetypewriter-scissor-metallic-lowtypewriter-scissor-metallic-basstypewriter-scissor-metallic-subtypewriter-scissor-metallictypewriter-scissor-lowtypewriter-scissor-deeptypewriter-laptoptypewriter-chiclettypewriter-scissortypewritertypewriter-softtypewriter-mechanicaltypewriter-digitaltypewriter-heavytypewriter-thocktypewriter-steeltypewriter-slamtypewriter-buttontypewriter-switchtypewriter-keycapclickclick-crispclick-roundclick-glasstogglesuccesserrornotificationsparkleswoopriserimpactglitchshutterswipedropdisplay

Spec knobs

What the spec changes without touching props

These live on the overlay, not in this template. They are renderer-provided, so they behave the same here as on every other template.

region: Where it sits. One of the 12 named boxes, or your own { "x": 62, "y": 12, "w": 34, "h": 42 } in percent of the frame. This template is designed around center, which is what it uses when the spec says nothing.
fullscreentop-bannerlower-thirdupper-thirdcaption-zoneleft-panelright-panelcentercorner-tlcorner-trcorner-blcorner-br
scale: Uniform size inside the resolved region, 0.25 to 2. Props that size the artwork stay relative to the region box, so scale is how an overlay grows past it.
time: When it lives: start, duration, or the appear + hold pair (entrance length plus how long the finished overlay stays). Seconds (3s), percentages (66%) and negative seconds from the end (-2s) are all valid.
motion: Object motion, applied to the element itself so nothing is cropped or zoomed. Unset here, so add { "style": "shake" } (or wobble, float, sway-3d) with amount (0..1) and its own time window, or one of the skew-* sweeps for a single slow turn into a perspective keystone. Pass an array to stack several.
shakewobblefloatsway-3dskew-rightskew-leftskew-upskew-downnone
enter: Renderer-owned entrance, 0.6s, identical on every template. It stacks with whatever entrance the template already runs, so set the template's own entrance prop to none when you drive it from here.
slide-leftslide-rightspringmask
exit: How it leaves: blur-out melts it away, fade-down drifts down, shrink scales to center (0.9s each), vanish pops it out of existence in 0.45s. Set one and the template's own fade steps aside.
blur-outfade-downshrinkvanish
camera: Moves the region's VIEWPORT rather than the element: push-in, pull-out, the pan-* family, handheld. Its own transform layer, so it stacks with motion, enter, exit and scale.
sound: Per-overlay override of the spec's sound block: enabled, volume, and a sounds map that remaps one cue by name ({ "pop": "ding" }, a path to your own file, or false to mute just that cue). The map is keyed by CUE, so remapping pop also changes an exit: "vanish", which fires pop too. To change only this template's own sound, use its sfx prop instead. Core palette: click, pop, whoosh, ding, typewriter.
All 45 premade cues
popbubbletickdingwhooshkeyboard-typing-naturalmouse-click-pressmouse-click-releasetypewriter-scissor-metallic-lowtypewriter-scissor-metallic-basstypewriter-scissor-metallic-subtypewriter-scissor-metallictypewriter-scissor-lowtypewriter-scissor-deeptypewriter-laptoptypewriter-chiclettypewriter-scissortypewritertypewriter-softtypewriter-mechanicaltypewriter-digitaltypewriter-heavytypewriter-thocktypewriter-steeltypewriter-slamtypewriter-buttontypewriter-switchtypewriter-keycapclickclick-crispclick-roundclick-glasstogglesuccesserrornotificationsparkleswoopriserimpactglitchshutterswipedropdisplay

JSON spec

Copy and customize

This exact spec drives the preview. Replace media paths and props with your own.

{
  "theme": "<your-brand-tokens>",
  "version": 1,
  "format": "square",
  "fps": 60,
  "durationSec": 5,
  "source": {
    "type": "none"
  },
  "sound": {
    "enabled": true,
    "volume": 1,
    "sounds": {}
  },
  "overlays": [
    {
      "template": "prompt-box",
      "region": "center",
      "time": {},
      "props": {
        "text": "Please add subtitles to this video",
        "hint": "OverlayMotion agent"
      }
    }
  ]
}