root@ansible:~/roles/zabbix# cat playbook.yml
---
- hosts: new
  roles:
    - role: dj-wasabi.zabbix-agent
      agent_server: XXXXXX
      agent_serveractive: XXXXXX
      agent_listenport: XXXXXX
      zabbix_version: 3.0
      zabbix_url: XXXXXX
      zabbix_api_use: true
      zabbix_api_user: api
      zabbix_api_pass: XXXXXX
      zabbix_create_host: present
      zabbix_api_create_hosts: true
      zabbix_useuip: 0
      agent_hostnameitem: system.hostname
      zabbix_host_groups:
        - 00 - All Hosts
        - 01 - Linux Servers
      zabbix_link_templates:
        - Template OS Linux

  tasks:
    include: tasks.yml

root@ansible:~/roles/zabbix# ansible-playbook -l n1 playbook.yml
ERROR! A malformed block was encountered.

The error appears to have been in '/root/roles/zabbix/playbook.yml': line 2, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

---
- hosts: new
  ^ here

root@ansible:~/roles/zabbix# ansible-playbook --version
ansible-playbook 2.2.0.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = Default w/o overrides
root@ansible:~/roles/zabbix#