Prompt
Constructs a prompt string from a template. Supports variable interpolation using {variable} syntax. The output is a formatted prompt message passed to an Agent or other downstream step.
Use in a flow
- Add a Prompt node to the canvas.
- Write a Template with static text and
{variable}placeholders. - When you add variables to the template, matching input fields appear on the component automatically.
- Connect the Prompt Message output to an Agent or LLM.
Prompt (Prompt Message) ──► Agent
Other components ──► Prompt (variable inputs)
Template example
You are a helpful assistant for {company}.
User question: {input}
Variables in curly braces become inputs you can wire from other components or fill in manually.
Parameters
| Parameter | Hidden | Description |
|---|---|---|
| Template | No | The prompt template. Use {variable_name} for dynamic values. |
| Tool Placeholder | Yes | Placeholder input used in tool mode. Open Controls to access. |
Additional fields are created automatically for each {variable} in your template.
Outputs
| Output | Description |
|---|---|
| Prompt Message | The rendered prompt as a message, with all variables filled in. |
Limitations
- Variable syntax — Variables must use
{name}format in the template. - Template updates — Changing the template may add or remove variable input fields on the component.