diff --git a/AGENTS.md b/AGENTS.md
index 684cd0c..035a0a4 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -2,4 +2,6 @@ You are on a nix system. This rust project contains a `flake.nix`.
 
 If you don't know a crate or the current crate version, use the `cratedoc` extension to get the crate documentation.
 
-Read the file `README.md` for further information about this project.
+Read the file @README.md for further information about this project.
+
+Prefix your `cargo` commands with `nix develop --command cargo`
diff --git a/README.md b/README.md
index c96b420..f43b613 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,12 @@ The game features:
 nix develop --command cargo build
 ```
 
+## How to Test
+
+```
+nix develop --command cargo test 
+```
+
 ## How to Run
 
 1.  Make sure you have Rust and Nix installed.