Global PromptsInstall

Overview

This node, named "Global Prompts," is designed to insert predefined prompt texts stored in credentials into the workflow data. It retrieves a list of prompts from a secured credential and adds them to each input item’s JSON data. This is useful when you want to reuse a set of global prompt messages across multiple parts of an automation without hardcoding them repeatedly.

Common scenarios include:

• Injecting standardized prompts or messages into chatbot workflows.
• Adding reusable text snippets for AI or NLP processing steps.
• Centralizing prompt management so updates happen in one place (the credential) rather than scattered throughout the workflow.

For example, if you have a list of customer support prompts saved in your credentials, this node can add all those prompts to each incoming data item either as separate keys or grouped under a single key.

Properties

Output

The node outputs the input items with additional JSON fields containing the prompt texts:

• If "Put All Prompts in One Key" is true (default), the output JSON will have a single key (default "prompts") whose value is an array of all prompt strings.

  Example:

  {
    "prompts": [
      "Prompt text 1",
      "Prompt text 2",
      "Prompt text 3"
    ]
  }
  

• If "Put All Prompts in One Key" is false, each prompt is added as a separate key named prompt1, prompt2, etc., with the corresponding prompt string as the value.

  Example:

  {
    "prompt1": "Prompt text 1",
    "prompt2": "Prompt text 2",
    "prompt3": "Prompt text 3"
  }
  

If there are no input items, the node creates one output item containing the prompts in the described format.

The node does not output binary data.

Dependencies

• Requires a configured credential that stores the global prompts. This credential must contain a property with an array of prompt objects, each having a text field.
• No external API calls or services are used; all data comes from the credential.
• The node expects the credential to be properly set up in n8n with the required prompts.

Troubleshooting

• No prompts appear in output: Ensure the credential is correctly configured and contains prompt entries with the expected structure (prompt[].text). Also verify the credential is selected in the node.
• Empty input items: If the node receives no input, it still outputs one item with the prompts. This behavior is by design.
• Incorrect key names: If you change the "Prompts Key Name" property, make sure downstream nodes expect the new key name.
• Credential access errors: If the node cannot access the credential, check that the credential exists, is authorized, and the node has permission to use it.

Links and References

• n8n Documentation - Credentials
• n8n Documentation - Creating Custom Nodes