Data
Items, mapping, expressions, item linking. What a node receives, what it passes on, and how you put a value from an earlier step into a setting.
Concepts explain what happens underneath the canvas. Read them when a workflow runs but the result surprises you: a step ran ten times instead of once, a field came out empty, a branch went the wrong way, or an AI step answered from the wrong text.
Each concept page opens with a 20-second summary, shows a small run you can inspect, compares the options when there are several ways to do the job, and ends with the symptoms you’ll see when something is off.
Three hubs
Section titled “Three hubs”Flow
Branching, repeating, waiting, failures. Which path a run takes, how work repeats, how a run pauses, and what happens when a step fails.
AI
Models, agents and tools, knowledge (RAG). Where a model runs, when an agent is worth it, and how to answer from your own documents.
Reading order
Section titled “Reading order”If you’re new, read these five in order. Together they take about 20 minutes.
- Items: every step passes a list of items, and most steps run once per item.
- Mapping in the UI: drag a value from an earlier step into a setting.
- Splitting and branching: send items down different paths.
- Error handling: decide what happens when a step fails.
- Models and dependencies: what you connect to an AI step, and where the model runs.
Start from what you see
Section titled “Start from what you see”| You notice… | Read |
|---|---|
| A step ran many times when you expected once | Items |
| A field is empty, or shows the whole list | Mapping with expressions |
| A value from an earlier step belongs to the wrong record | Item linking |
| Nothing ran after an IF, Filter or Switch | Splitting and branching |
| You need to repeat steps, page by page or batch by batch | Looping |
| One failing step stopped the whole run | Error handling |
| An agent called the wrong tool, or never stopped | AI agents |
| An answer ignores your documents | RAG |
Words you’ll meet
Section titled “Words you’ll meet”The glossary defines the terms used across the docs, and links each one to the page that explains it.
GlossaryShort definitions, each linked to its concept page.
For the exact settings and outputs of a node, use the node reference. To practise a concept on a complete workflow, pick one of the recipes.