diff --git a/.github/workflows/test-exclusions.yml b/.github/workflows/test-exclusions.yml
new file mode 100644
index 0000000..8101f1a
--- /dev/null
+++ b/.github/workflows/test-exclusions.yml
@@ -0,0 +1,28 @@
+name:  Test Exclusions
+
+on:
+  pull_request:
+  push:
+
+jobs:
+    test-exclusions:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - name: Test Local Action (debug log)
+              uses: ./
+              env:
+                  LOG_LEVEL: DEBUG
+                  CREATE_LOG_FILE: true
+                  GITHUB_WORKSPACE: test/exclusion-test
+              with:
+                  exclude-patterns: 'template'
+            - name: Test Local Action (debug log)
+              uses: ./
+              env:
+                  LOG_LEVEL: DEBUG
+                  CREATE_LOG_FILE: true
+                  GITHUB_WORKSPACE: test/exclusion-test
+              with:
+                  exclude-patterns: 'template'
+                  deny-warnings: 'true'
diff --git a/action.yml b/action.yml
index 7cf656e..543d59b 100644
--- a/action.yml
+++ b/action.yml
@@ -25,8 +25,7 @@ runs:
   using: "docker"
   image: "Dockerfile"
   entrypoint: "/app/entrypoint.sh"
-  args:
-    - ${{ inputs.lint == 'true' && '--lint' || '' }}
-    - ${{ inputs.deny-warnings == 'true' && '--deny-warnings' || '' }}
-    - ${{ inputs.deny-notes == 'true' && '--deny-notes' || '' }}
-    - ${{ inputs.exclude-patterns }}
+  env:
+    INPUT_PATTERNS: ${{ inputs.exclude-patterns }}
+    INPUT_WARNINGS: ${{ inputs.deny-warnings }}
+    INPUT_NOTES: ${{ inputs.deny-notes }}
diff --git a/entrypoint.sh b/entrypoint.sh
index ab5a555..7cf3ff4 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,21 +1,24 @@
 #!/bin/bash
 
 lint=""
+
+if [ $INPUT_LINT = "true" ]; then
+    lint="--lint"
+fi
+
 warnings=""
+
+if [ ${INPUT_WARNINGS} = "true" ]; then
+    warnings="--deny-warnings"
+fi
+
 notes=""
 
-while [ "$#" -gt 0 ]; do
-    arg=$1
-    case $1 in
-        -l|--lint) lint="--lint"; shift;;
-        -w|--deny-warnings) warnings="--deny-warnings"; shift;;
-        -n|--deny-notes) notes="--deny-notes"; shift;;
-        ''|"") shift;;
-        *) break;;
-    esac
-done
+if [ ${INPUT_NOTES} = "true" ]; then
+    notes="--deny-notes"
+fi
 
-exclusions=$1
+exclusions=${INPUT_PATTERNS}
 
 if [ -n "$exclusions" ]; then
     echo "Exclusions provided. Writing to .sprocket.yml."
diff --git a/test/exclusion-test/ok.wdl b/test/exclusion-test/ok.wdl
new file mode 100644
index 0000000..86fda2f
--- /dev/null
+++ b/test/exclusion-test/ok.wdl
@@ -0,0 +1,24 @@
+#@ except: LineWidth
+
+version 1.1
+
+task foo {
+    meta {
+        description: "test task"
+        outputs: {
+            out: "output file"
+        }
+    }
+
+    command <<<
+        echo "hello" > out
+    >>>
+
+    output {
+        File out = "out"
+    }
+
+    runtime {
+        container: "ubuntu@sha256:67541378af7d535606e684a8234d56ca0725b6a4d8b0bbf19cebefed98e06f42"
+    }
+}
diff --git a/test/exclusion-test/template.wdl b/test/exclusion-test/template.wdl
new file mode 100644
index 0000000..e69de29