The non-traversable GL_AssignedTo edge records that a group runner is registered to / assigned to a specific group. This is the registration relationship for group-scoped runners: the runner is owned by and reports to this group.
This edge differs from GL_CanUseRunner — GL_AssignedTo records ownership/registration, while GL_CanUseRunner records which groups and projects are permitted to use the runner.
graph LR
runner("fa:fa-gears GL_Runner group-runner-01")
group("fa:fa-user-group GL_Group myorg")
runner -.->|GL_AssignedTo| group
group -.->|GL_CanUseRunner| runner