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Documentation Index

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Goal of this page: in ten minutes you’ve briefed the agent, generated a few on-brand variants of something real, and learned the three or four mechanics you’ll use every day after that. Pick a real task — an Instagram ad for a current product, a hero image for an email, a lookbook frame, whatever’s actually on your plate. Working from a real brief is faster than learning from a contrived one.

1. Create a project and canvas

1

From the homepage, hit 'New project'

Name it after the brand or campaign you’re working on. Inside the project, you’ll get a default canvas — rename it to something specific (e.g. “Spring email banners”).
2

Open the canvas

You’ll see a blank workspace with the agent chat docked on one side. The chat is where you brief the agent; the canvas is where its work appears.

2. Give the agent everything you’d give a junior designer

The single biggest predictor of good output is how much context you supply up front. Treat the brief like you’re handing off to a freelancer with no prior knowledge. Things worth pasting in:
  • The product PDP URL (the agent will scrape dimensions, colors, materials, copy)
  • Two or three reference images that match the look you’re going for (Pinterest moodboard, competitor ads, existing brand work)
  • Your logo as a PNG or SVG
  • A sentence on the audience, the channel, and the desired feeling
Example brief (paste into the agent chat):
Help me create 5 Instagram Story ads (9x16) for [product].
PDP: [link]
Reference style: [attach 2-3 mood images]
Audience: parents of teens who worry about losing things.
Tone: warm, candid, slightly playful. Not "tech ad."
Use the attached logo. Match the color palette of the references.
Drop the images into the chat using the paperclip / attach button. Then run it.

3. Watch the agent work

The agent will start building. You’ll see it create text nodes (style analysis, brief synthesis), image nodes (the actual generations), and connect them with edges. The whole thing typically takes 30–90 seconds. If you set the agent to auto-run, it’ll just build. If you used ask permission, it’ll pause to confirm decisions — useful if you want to inspect the prompts before generation kicks off.

4. Inspect the outputs

When the agent finishes, you’ll have a row of generated images on the canvas. Some will be great, some won’t. That’s normal — image models are probabilistic, which is why we generate multiple variations at once. For each image node, you can:
  • Click the image to open it full-screen and see it at full resolution (the on-canvas preview is downscaled to keep the canvas fast).
  • See the exact prompt the agent wrote in the prompt field.
  • See which inputs fed in via the edges.

5. Tweak one node

Pick the variant that’s closest to what you want. Read the prompt the agent wrote. Edit it directly — change a word, add a constraint, swap a reference — and hit re-run. The original version is saved as a previous variant on that node, so you can compare them side by side. This is the most important habit to build: don’t redo the whole canvas to fix one image. Examples of node-level tweaks:
  • “Change ‘lifestyle’ to ‘minimal product still life’”
  • “Don’t show the back of the product, keep the front-facing angle”
  • “Use Canadian English spelling in any visible copy”

6. Download what you need

When you’re happy, click the image to expand it and download. The on-canvas preview is 1K-ish for performance; the downloaded file is whatever resolution you set on the node (1K, 2K, or 4K).

What to learn next

  • Set up a brand anchor so the agent’s outputs are on-brand by default, every canvas, every time.
  • Pick the right model — there’s no single “best” image model, and the right pick depends on what you’re trying to do.
  • Make a winning ad work harder — once you have an ad that performs, Melius can produce 50 variants of it for testing in an afternoon.
Resolution tip: keep nodes at 1K while you’re exploring (it generates 3–4x faster), then bump to 2K for the variants you’re shipping. We launch generations at 1K by default for exactly this reason.
Last modified on May 18, 2026