0 s

3 s

6 s

9 s

Drawn stand-ins for the poster frame and the frames at 0, 3, 6 and 9 seconds; press Play for the loop

Copper Current

A 12-second silent loop of copper strands, drawn by code you can open.

Download the source What your agent can change

Included in Studio$15 a month

Medium: 2D motion, 12 seconds
Formats: MP4; source in ES modules and JSON
Licence: MIT, as recorded
Files: 10 files, 16.2 KB

Checks after every change

Kept parts match their digests
The loop stays 12.00 s long
The palette digest matches
Frame time at 1080p stays under 16.7 ms
Frames 0 and 180 match the recorded frames
It opens in a fresh browser profile

What your agent can change.

Each part of the source has one job. Your agent changes the part you name, and the checks confirm the rest held.

File	What it holds	What to change
`src/curves.js`	9 strands, a weave of 0.72, 3 to 5 px thick	Change the count, weave or thickness
`src/palette.js`	Five copper tones	Swap in any five colours
`src/timing.js`	A 12-second loop with its easing	Set a new length; the loop stays closed
`src/render.js`	Canvas size and the fixed seed	Render at a new size or seed

Read https://agentstudios.si/llms.txt. Open Copper Current, change only src/curves.js to make the strands thicker, run the reopen check, and show me which files changed and that timing and palette held.

Say this to your agent to change one part{{ cp.prompt.note }}

asset.json, the card your agent reads first

asset.json{{ cp.card.note }}

{
  "id": "copper-current-b9b28ecda939",
  "medium": "2D",
  "formats": ["video/mp4", "text/javascript", "application/json"],
  "licence": "MIT",
  "access": "studio",
  "credit": "Copper Current by AgentStudios, MIT",
  "change": {
    "src/curves.js": ["strands", "weave", "thickness"],
    "src/palette.js": ["tones"],
    "src/timing.js": ["loop_seconds", "easing"]
  },
  "checks": "checks/reopen.test.js"
}

Every file in the source.

project_graph.json addresses each part by its content digest, so a change to one part leaves the rest byte for byte.

File	What it holds	Size	SHA-256
`asset.json`	The card your agent reads first	0.8 KB	`c0eccb5e…6f11`
`project_graph.json`	Every part and its content digest	1.9 KB	`125fd54d…ad39`
`import-map.json`	Pinned versions of each ES module	0.6 KB	`562f29ab…dd54`
`src/curves.js`	The strands: count, weave and thickness	3.4 KB	`d644f04f…e36f`
`src/timing.js`	The 12-second loop and its easing	1.1 KB	`c0fed63a…8860`
`src/palette.js`	Five copper tones	0.7 KB	`e9d8c1d7…545d`
`src/render.js`	Canvas renderer with a fixed seed	2.8 KB	`e3a407fc…49aa`
`checks/reopen.test.js`	The reopen check, run after each change	2.2 KB	`a83f5fd6…a4bb`
`README.md`	How to open, change and render it	1.6 KB	`eb665b6f…1f5e`
`LICENSE`	MIT	1.1 KB	`a6c512c6…6619`

Use it in your project

Fetch it
Ask your agent to bring it in, or download the source from this page.
Open it in your tools
The README shows how to open, change and render it.
Credit it as the licence asks
Keep the MIT notice with the files, and add the credit line to CREDITS.md.