diff --git a/autoload/ale/handlers/atools.vim b/autoload/ale/handlers/atools.vim
new file mode 100644
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+++ b/autoload/ale/handlers/atools.vim
@@ -0,0 +1,41 @@
+" Author: Leo <thinkabit.ukim@gmail.com>
+" Description: Handlers for output expected from atools
+
+function! ale#handlers#atools#Handle(buffer, lines) abort
+    " Format: SEVERITY:[TAG]:PATH:LINENUM:MSG
+    " Example: MC:[AL5]:./APKBUILD:12:variable set to empty string: install=
+    let l:pattern = '\([^:]\+\):\([^:]\+\):\([^:]\+\):\(\d\+\):\(.\+\)$'
+    let l:output = []
+
+    for l:match in ale#util#GetMatches(a:lines, l:pattern)
+        " We are expected to receive 2 characters, the first character
+        " can be 'S', 'I', 'M' 'T', which are respectively:
+        " Serious (Error)
+        " Important (Error)
+        " Minor (Warning)
+        " Style (Warning)
+        "
+        " The second character can be either 'C' or 'P', which are respectively:
+        " Certain (Error)
+        " Possible (Warning)
+        let l:severity = matchstr(l:match[1], '^.')
+        let l:certainty = matchstr(l:match[1], '.$')
+
+        let l:type = 'E'
+        " If the tag returns 'Minor' or 'Style' or is 'Possible'
+        " then return a warning
+
+        if l:severity is# 'M' || l:severity is# 'T' || l:certainty is# 'P'
+            let l:type = 'W'
+        endif
+
+        call add(l:output, {
+        \    'lnum': l:match[4] + 0,
+        \    'text': l:match[5],
+        \    'type': l:type,
+        \    'code': matchstr(l:match[2], 'AL[0-9]*'),
+        \})
+    endfor
+
+    return l:output
+endfunction