my-playbook/
  playbook.wcl
  lib/                          # playbook-level shared wscript (see note below)
  pkgs/
    core/
      package.wcl
      lib/                      # package-level shared wscript
      resources/
        file_present.wscript       # exports check() and apply()
      gatherers/
        os_info.wscript            # exports gather()
      tests/
        file_present_verify.wscript  # optional verify() for tests

package "core" {
  description = "Core sample package"

  gatherer "os_info" {
    description = "Report basic operating system facts"
    script = "gatherers/os_info.wscript"     // path relative to the package dir
  }

  resource "file_present" {
    description = "Ensure a file exists with the given content"
    script = "resources/file_present.wscript"
    concurrency = "parallel"              // parallel (default) | exclusive | global

    param "path" {
      description = "Absolute path of the file"
      type = "string"                     // string | int | float | bool | list | map
      required = true                     // default false
    }
    param "content" {
      description = "File content"
      type = "string"
      default = ""                        // default value when omitted
    }
  }

  test "file_present_converges" {         // see the Testlab concept
    description = "file_present creates the file and is idempotent"
    image = "debian:12"
    verify = "tests/file_present_verify.wscript"
    step "create" {
      description = "Create a marker file"
      resource = "file_present"
      properties { path = "/var/tmp/weave-sample.txt"  content = "hello" }
    }
  }
}