gistfile1.txt

---

- name: "Always tag shoudld not run if condition fails"
  hosts: localhost
  gather_facts: no
  tasks:
  - debug: msg="This should run"
    tags:
      - always

  - debug: msg="This should not run {{ undefined_var }}"
    tags: 
      - always
    when: no

  - debug: msg="This should not run {{ item }}"
    with_items:
      - "{{ undefined_var }}"
    tags: 
      - always
    when: no