diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/storage/ArtifactStore.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/storage/ArtifactStore.java
index 8457348c..b25c4ba2 100644
--- a/cameleer-server-core/src/main/java/com/cameleer/server/core/storage/ArtifactStore.java
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/storage/ArtifactStore.java
@@ -22,6 +22,7 @@ public interface ArtifactStore {
     /** Open the artifact for reading. Caller closes. */
     InputStream get(ArtifactCoordinates coords) throws IOException;
 
+    /** True if an artifact is currently stored under {@code coords}. */
     boolean exists(ArtifactCoordinates coords);
 
     /** Remove the artifact and any backend-specific scaffolding (empty parent dirs, etc.).