How can I avoid duplicate configuration node names?

Developing Nodes
2

Hi,
I'm not sure I understood everything.

The node name is purely visual and should not be used to identify a node in the code. This is the job of the id.

It's possible to increment but only if you have developed the node. Otherwise you have to add an "nodes:add" event which when you add this node, updates the name by modifying the node properties.

RED.events.on("nodes:add", (node) => {
  // Skip if not your node
  if (node.type !== "your-type") return;

  // check if name exist with
  // RED.nodes.eachNode
  // then update it
  node.name = "new name"
});