Build with the Node Agent

Use the Node Agent when you know what a workflow should do but not which nodes to wire. What it builds stays editable, and nothing generates until you click Run.

It is one of the two Scenario Agents and shares instructions and memory with Scenario Genie. See Scenario Agents overview.

Open it

Write the request

A request in four parts usually produces a working graph on the first try; a loose paragraph often needs several follow-ups.

Inputs: one product photo on any background (Image A).
Steps: remove the background; upscale 2x; place the product on a plain warm-grey
studio background with a soft shadow; keep the product's shape, color and label exactly.
Output: one 2048 x 2048 PNG, square.
Notes: use GPT Image 2.5 Sunburst for the studio shot and Topaz Image Upscale for the
upscale. Expose the product photo as the only input. No text in the image.

• Inputs: what a person will bring each run. If you drop reference images on the canvas, say which is which ("Image A is the character, Image B is the style reference").
• Steps: the transformations, in order.
• Output: format, aspect ratio, resolution. Defaults may not match what you need.
• Notes: hard constraints and model choices. If you name a model, the agent uses it; otherwise it picks one of more than 750 models, including your trained models, from the task and your workspace.

Read the report, then the graph

After building, the agent reports each node, the model behind each generator, the aspect ratio and resolution, and where intermediate results show. Read it before you run, and fix mistakes in the chat:

Change the upscale to 2x, not 4x, and set the final output to 1:1 at 2048.

Then check the graph yourself:

1. Read the cost badge next to the title. Is it in line with the job?
2. Follow each wire: green into image ports, blue into text ports, no input left empty.
3. Confirm each model by clicking the generator's model footer.
4. Test the first node or two with Run This Node before the full Run.

Change an existing workflow

Open the workflow and describe the change. The agent reads the current graph and edits it; it does not start over.

Add a Slice Items node in Choose mode after the image generator so I can keep one of
four takes before the upscale. Set the generator to four images.

Each follow-up in the same chat edits the same workflow: add a branch, swap a model, remove a step. One change per message keeps each edit easy to check.

Cost

• Runs cost what their nodes cost, shown on the badge. The graph itself costs nothing until you run it.
• Agent messages: Scenario's usage documentation lists assistant and agent messages among the actions that use credits.
• Start a new chat per task. For Scenario Genie, the cost of a message grows with the length of the chat; the same habit is sensible here.

When to build by hand instead

• Three nodes or fewer: adding them yourself is faster than describing them.
• Fine-tuning a prompt or setting: edit the node directly.
• A documented standard: when the graph must match it exactly, build it once by hand, then ask the agent for changes.

When the graph works, turn it into an App for the team. See Publish a workflow as an App.

If it breaks