Logic nodes
Automation and logic nodes control how data flows through your agent. They let you split, merge, route, review, and transform content between your AI and input nodes.
You'll find these nodes under Automate → Logic in the node picker.
Available logic nodes
Split Text
Break a text string into separate parts based on a delimiter
Text input + delimiter character
Multiple text outputs (one per split segment)
List Selector
Pick a specific item from a list of text outputs
List of text items + selection index
Single text output
Prompt Concatenator
Merge multiple text inputs into a single combined prompt
Two or more text inputs
Single merged text output
Human Review
Pause the workflow for manual quality control before continuing
Any asset (image, video, text)
Approved or rejected asset
Rename Asset
Set custom filenames for generated assets
Asset + naming pattern
Same asset with new filename
Router
Reuse any node's output anywhere else in your flow
Any node output
Routed output to multiple downstream nodes
Split Text & List Selector
These two nodes work together for workflows that need to process multiple items from a single text input.
Split Text takes a block of text and breaks it into parts using a delimiter (like a comma, newline, or custom separator). Each part becomes a separate output that can feed into parallel downstream nodes.
List Selector picks one specific item from a list by index. Use it after Split Text when you only need one of the split outputs, or to select from any list-type output.
Example flow: A Text Assistant generates 5 ad headline variations separated by newlines → Split Text breaks them into 5 separate strings → List Selector picks headline #3 → Generate Image uses it as the prompt.
See more: Split text & List Selector
Prompt Concatenator
Merges multiple text inputs into a single prompt. This is useful when you need to combine outputs from different branches of your workflow — like merging a user prompt with brand guidelines and a style description — before feeding them into a generation node.
Unlike a Text Assistant (which uses an LLM to intelligently process inputs), the Prompt Concatenator is a simple mechanical join. It's faster, costs no credits, and is predictable — but it won't rephrase or restructure the text.
See more: Prompt Concatenator
Human Review
Inserts a manual checkpoint into your workflow. When the agent reaches a Human Review node, it pauses and waits for a human to approve or reject the output before continuing.
This is essential for production workflows where quality control matters — ad campaigns, client-facing content, or anything where you need a human eye before publishing.
See more: Human review
Rename Asset
Sets custom filenames for your generated assets. Useful when you need organized, predictable file names — especially for workflows that output multiple assets or integrate with external systems like Google Drive.
Supports dynamic naming patterns using variables from your workflow (e.g., combining brand name + asset type + date).
Router
The Router lets you reuse any node's output at multiple points in your flow without duplicating the node. Connect a Router to a node's output, then route that output to as many downstream nodes as you need.
This keeps your canvas clean and avoids redundant processing — the source node only runs once, but its output is available everywhere the Router connects to.
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