diff --git a/tools/src/main.rs b/tools/src/main.rs
index 09fce409..676c7388 100644
--- a/tools/src/main.rs
+++ b/tools/src/main.rs
@@ -3,12 +3,15 @@ use clap::Command;
 
 mod publish;
 
-fn main() {
-    let matches = Command::new("Agb tools")
+fn cli() -> Command {
+    Command::new("Agb tools")
         .subcommand_required(true)
         .arg_required_else_help(true)
         .subcommand(publish::command())
-        .get_matches();
+}
+
+fn main() {
+    let matches = cli().get_matches();
 
     let result = match matches.subcommand() {
         Some(("publish", arg_matches)) => publish::publish(arg_matches),
@@ -19,3 +22,13 @@ fn main() {
         eprintln!("Error: {:?}", e);
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn verify_cli() {
+        cli().debug_assert();
+    }
+}