Getting error message

name must match /^[a-zA-Z0-9_-]{1,40}$/ regular expression

because there's a regexp (no

(Copy)

allowed in the tool name

The error occurs because tool names can only include **letters, numbers, underscores, or hyphens**—no spaces or special characters like

(Copy)

. Try renaming your duplicated tool using this format:

plaintext
my_tool_copy

This will satisfy the required pattern:

/^[a-zA-Z0-9_-]{1,40}$/

(see the [Create Tool API reference](https://docs.vapi.ai/api-reference/tools/create-tool)). Source: - [Create Tool API reference](https://docs.vapi.ai/api-reference/tools/create-tool)

It doesn't create the duplicated one at all