diff --git a/.claude/settings.json b/.claude/settings.json
new file mode 100644
index 00000000..4fd816c7
--- /dev/null
+++ b/.claude/settings.json
@@ -0,0 +1,15 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Edit|Write",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "jq -r '.tool_input.file_path // empty' | xargs -I{} gofumpt -w {}"
+          }
+        ]
+      }
+    ]
+  }
+}