Before: call ale#assert#SetUpLinterTest('wgsl', 'naga') After: call ale#assert#TearDownLinterTest() Execute(The naga command should be customizable): let g:ale_wgsl_naga_executable = '/path/to/naga' AssertLinter '/path/to/naga', \ ale#Escape('/path/to/naga') . ' --stdin-file-path %s'