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Loop Edges

Runchat supports passing data upstream to define recursive tools and processes. This enables applications like generate-critique workflows, iterating over paginated APIs, website crawling and task orchestration. You can create a loop by connecting an output parameter of a node to an input parameter of an upstream node.

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Update Heuristics

Nodes that have both upstream and downstream connections to the source and target nodes in the loop will be run during the loop. The immediate children of these nodes will also be run during the loop. This allows for things like incrementally adding to a list while a loop runs without needing to continue passing this list through to the loop source. Downstream nodes from these children are not run during the loop. See the image above for when dependent nodes will run.
Note that Runchat loops over each input to a parameter and runs calculations in parallel. Using loop edges is usually only necessary when you require a recursive data flow.

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For Loops

A for-loop is a loop that runs for a specific number of times. You can modify the number of times the loop runs for by creating a loop then clicking the blue loop tag in the center of the loop edge. The maximum times a loop can run is 100.

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While Loops

A while-loop runs until a condition is met. You can create while loops in Runchat by referencing an output parameter in your workflow. While this parameter evaluates to true the loop will run. When the parameter evaluates to false the loop will stop. The maximum runs for a while-loop is still 100.

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Referencing outputs with loop edges

You can use loop edges that run zero times to pass node outputs directly to inputs. This is useful for creating chat histories (that can continue previous conversations), or adding items to a list over time, or creating counters, or anything else that needs memory of past outputs.