diff --git a/src/main/java/swiss/qpq/gajumaru/core/encoding/ZJ.java b/src/main/java/swiss/qpq/gajumaru/core/encoding/ZJ.java
index 92b4af0..d56e4f5 100644
--- a/src/main/java/swiss/qpq/gajumaru/core/encoding/ZJ.java
+++ b/src/main/java/swiss/qpq/gajumaru/core/encoding/ZJ.java
@@ -6,9 +6,14 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-/**
- * ZJ: The tiny JSON parser, ported from zj.erl.
- */
+// ZJ: Tiny JSON parser, ported from zj.erl.
+//
+// NOTE:
+//  Does not *quite* live up to ZJ in every respect, but is sufficient for GRIDS (maybe).
+//  The most important difference is that this version makes use of `throw`. A lot.
+//  That sucks, but I don't know a clean way to get the error tuple return style yet.
+
+
 public final class ZJ {
 
     private ZJ() {}