diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..d53bc72
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,5 @@
+FROM bash:5
+COPY entrypoint.sh /
+COPY problem-matcher.json /
+COPY splinter /
+ENTRYPOINT ["/entrypoint.sh"]
diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..fb96168
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,16 @@
+name: 'Splinter'
+description: 'Simple pattern-based linter'
+inputs:
+  rules_file:
+    description: 'Rules file path'
+    required: true
+    default: '.splinter'
+  src_paths:
+    description: 'List of files/directories to lint'
+    required: false
+runs:
+  using: 'docker'
+  image: 'Dockerfile'
+  args:
+    - ${{ inputs.rules_file }}
+    - ${{ inputs.src_paths }}
diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100755
index 0000000..c62b9d7
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+cp /problem-matcher.json $HOME
+echo "::add-matcher::$HOME/problem-matcher.json"
+/splinter "$@"
diff --git a/problem-matcher.json b/problem-matcher.json
new file mode 100644
index 0000000..a73aa4f
--- /dev/null
+++ b/problem-matcher.json
@@ -0,0 +1,15 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "splinter",
+      "pattern": [
+        {
+          "regexp": "^(.+):(\\d+):(.+)$",
+          "file": 1,
+          "line": 2,
+          "message": 3
+        }
+      ]
+    }
+  ]
+}