# Mock

> Placeholder node that passes execution without performing any action during flow modeling.

A placeholder node with no behavior. Use it to sketch the shape of a flow before implementing the actual logic — it passes through execution without doing anything and produces no output.

## When to use Mock

- **Modeling:** Rough out the structure of a complex flow before wiring in real nodes.
- **Stubbing:** Hold a position in the flow where a node will be added later without breaking the flow's structure.

The Mock node is not intended for output simulation. To return a fixed value during testing without calling an external service, use a Script node that returns a hardcoded value.

## Configuration

The Mock node has no configuration fields.

## Output

The Mock node produces no output. Downstream nodes cannot reference any output from a Mock node.

## Notes

- A Mock node that is wired into the flow will execute (passing control to the next node) but does nothing.
- Mock nodes should be replaced before publishing a flow to production.