diff --git a/examples/passkey/README.md b/examples/passkey/README.md
index a48a6283a..2b8e910f9 100644
--- a/examples/passkey/README.md
+++ b/examples/passkey/README.md
@@ -1,5 +1,8 @@
 # llama.cpp/example/passkey
 
+A passkey retrieval task is an evaluation method used to measure a language
+models ability to recall information from long contexts.
+
 See the following PRs for more info:
 
 - https://github.com/ggerganov/llama.cpp/pull/3856