var-naming[no-role-prefix] is not detected in a role's handlers files

[cavcrosby]

Summary

The var-naming[no-role-prefix] rule is not detected in a role's handlers files that register variables with no prefix.

Issue Type

• Bug Report

OS / ENVIRONMENT

ansible-lint 25.9.2 using ansible-core:2.17.0 ansible-compat:25.8.2 ruamel-yaml:0.18.15 ruamel-yaml-clib:0.2.14

• ansible installation method: pip
• ansible-lint installation method: pip

STEPS TO REPRODUCE

Setup

mkdir -p ./roles/test/{handlers,tasks}

cat << _EOF_ > "./roles/test/handlers/main.yml"
---
- name: Echo thefoo
  ansible.builtin.command: echo thefoo
  changed_when: true
  register: thefoo
_EOF_

cat << _EOF_ > "./roles/test/tasks/main.yml"
---
- name: Ls the root directory
  ansible.builtin.command: ls /
  changed_when: true
  register: test_foo
  notify: Echo thefoo
_EOF_

Run

ansible-lint --offline

Desired Behavior

I would expect that the var-naming[no-role-prefix] rule to be detected/violated in the role's handlers files tested. Especially since this rule has been extended to include variables defined by a role's tasks files (#4677).

Actual Behavior

The actual behavior is that the var-naming[no-role-prefix] rule is not detected/violated in the role's handlers files tested.