diff --git a/.arclint b/.arclint
--- a/.arclint
+++ b/.arclint
@@ -24,6 +24,10 @@
             ],
             "script-and-regex.script": "test/lint/lint-format-strings.sh",
             "script-and-regex.regex": "/^(?P<file>.+): (?P<message>.+:.+)$/m"
+        },
+        "check-doc": {
+            "type": "check-doc",
+            "include": "(^src/.*\\.(h|c|cpp)$)"
         }
     }
 }
diff --git a/arcanist/__phutil_library_map__.php b/arcanist/__phutil_library_map__.php
--- a/arcanist/__phutil_library_map__.php
+++ b/arcanist/__phutil_library_map__.php
@@ -10,11 +10,13 @@
   '__library_version__' => 2,
   'class' => array(
     'AutoPEP8FormatLinter' => 'linter/AutoPEP8Linter.php',
+    'CheckDocLinter' => 'linter/CheckDocLinter.php',
     'ClangFormatLinter' => 'linter/ClangFormatLinter.php',
   ),
   'function' => array(),
   'xmap' => array(
     'AutoPEP8FormatLinter' => 'ArcanistExternalLinter',
+    'CheckDocLinter' => 'ArcanistExternalLinter',
     'ClangFormatLinter' => 'ArcanistExternalLinter',
   ),
 ));
diff --git a/arcanist/linter/CheckDocLinter.php b/arcanist/linter/CheckDocLinter.php
new file mode 100644
--- /dev/null
+++ b/arcanist/linter/CheckDocLinter.php
@@ -0,0 +1,103 @@
+<?php
+
+/**
+ * Uses the check-doc.py script to enfore command line arguments documentation
+ */
+final class CheckDocLinter extends ArcanistExternalLinter {
+
+  public function getInfoName() {
+    return 'check-doc';
+  }
+
+  public function getInfoURI() {
+    return '';
+  }
+
+  public function getInfoDescription() {
+    return pht('Check that all the command line arguments are documented.');
+  }
+
+  public function getLinterName() {
+    return 'check-doc';
+  }
+
+  public function getLinterConfigurationName() {
+    return 'check-doc';
+  }
+
+  public function getLinterConfigurationOptions() {
+    $options = array(
+    );
+
+    return $options + parent::getLinterConfigurationOptions();
+  }
+
+  public function getDefaultBinary() {
+    return Filesystem::resolvePath(
+      'test/lint/check-doc.py',
+      $this->getProjectRoot());
+  }
+  
+  public function shouldUseInterpreter() {
+    return true;
+  }
+  
+  public function getDefaultInterpreter() {
+    return "python3";
+  }
+  
+  public function getInstallInstructions() {
+    return pht('The test/lint/check-doc.py script is part of the bitcoin-abc project');
+  }
+
+  public function shouldExpectCommandErrors() {
+    return false;
+  }
+
+  protected function getMandatoryFlags() {
+    return array(
+    );
+  }
+
+  protected function parseLinterOutput($path, $err, $stdout, $stderr) {
+    /* Split stdout:
+     * 0 => Empty (before first 'Args' occurence)
+     * 1 => Args used: count
+     * 2 => Args documented: count
+     * 3 => Args undocumented: count and list
+     * 4 => Args unknown: count and list
+     */
+    $stdoutExploded = preg_split('/Args/', $stdout);
+    
+    $undocumented = $stdoutExploded[3];
+    $unknown = $stdoutExploded[4];
+
+    $messages = array();
+    
+    // Undocumented arguments
+    $match = preg_match_all('/-[\w|-]+/', $undocumented, $args);
+    foreach($args[0] as $arg) {
+      $messages[] = id(new ArcanistLintMessage())
+        ->setGranularity(ArcanistLinter::GRANULARITY_GLOBAL)
+        ->setCode('ARGDOC')
+        ->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR)
+        ->setName('Undocumented argument')
+        ->setDescription("'$arg' is undocumented.");
+    }
+    
+    // Unknown arguments
+    $match = preg_match_all('/-[\w|-]+/', $unknown, $args);
+    foreach($args[0] as $arg) {
+        $messages[] = id(new ArcanistLintMessage())
+        ->setGranularity(ArcanistLinter::GRANULARITY_GLOBAL)
+        ->setCode('ARGDOC')
+        ->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR)
+        ->setName('Unknown argument')
+        ->setDescription("'$arg' is documented but not used.");
+    }
+
+    return $messages;
+  }
+}
+
+?>
diff --git a/doc/release-process.md b/doc/release-process.md
--- a/doc/release-process.md
+++ b/doc/release-process.md
@@ -12,7 +12,7 @@
 2. Verify tests passed
     - Any known issues or limitations should be documented in release notes
     - Known bugs should have tickets
-    - Run the `contrib/devtools/check-doc.py` script and ensure there is no undocumented argument
+    - Run `arc lint --everything` and check there is no linter error
     - Verify IBD without checkpoints and without assumevalid.
  
 3. Update the documents / code which needs to be updated every release
diff --git a/test/lint/check-doc.py b/test/lint/check-doc.py
--- a/test/lint/check-doc.py
+++ b/test/lint/check-doc.py
@@ -75,8 +75,6 @@
     print("Args unknown     : {}".format(len(args_unknown)))
     pp.pprint(args_unknown)
 
-    sys.exit(len(args_need_doc))
-
 
 if __name__ == "__main__":
     main()