variable "project_id" { description = "The ID of the existing GCP project to scaffold into." type = string } variable "prefix" { description = "Short name prefix applied to all created resource names." type = string default = "gemini" validation { condition = can(regex("^[a-z][a-z0-9-]{0,14}$", var.prefix)) error_message = "prefix must be 1-15 lowercase letters, digits, or hyphens, starting with a letter." } }