diff --git a/crates/dl/CHANGELOG.md b/crates/download/CHANGELOG.md
similarity index 100%
rename from crates/dl/CHANGELOG.md
rename to crates/download/CHANGELOG.md
diff --git a/crates/dl/Cargo.toml b/crates/download/Cargo.toml
similarity index 91%
rename from crates/dl/Cargo.toml
rename to crates/download/Cargo.toml
index f4936aa..ba9116a 100644
--- a/crates/dl/Cargo.toml
+++ b/crates/download/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "moon_extension_dl"
+name = "moon_extension_download"
 version = "0.0.1"
 edition = "2021"
 license = "MIT"
diff --git a/crates/dl/src/lib.rs b/crates/download/src/lib.rs
similarity index 94%
rename from crates/dl/src/lib.rs
rename to crates/download/src/lib.rs
index 0c4bc4d..e36b29d 100644
--- a/crates/dl/src/lib.rs
+++ b/crates/download/src/lib.rs
@@ -12,7 +12,7 @@ extern "ExtismHost" {
 }
 
 #[derive(Args)]
-pub struct DlExtensionArgs {
+pub struct DownloadExtensionArgs {
     #[arg(long, required = true)]
     pub url: String,
 
@@ -25,7 +25,7 @@ pub struct DlExtensionArgs {
 
 #[plugin_fn]
 pub fn execute_extension(Json(input): Json<ExecuteExtensionInput>) -> FnResult<()> {
-    let args = parse_args::<DlExtensionArgs>(&input.args)?;
+    let args = parse_args::<DownloadExtensionArgs>(&input.args)?;
 
     if !args.url.starts_with("http") {
         return Err(plugin_err!("A valid URL is required for downloading."));
diff --git a/crates/dl/tests/dl_test.rs b/crates/download/tests/download_test.rs
similarity index 99%
rename from crates/dl/tests/dl_test.rs
rename to crates/download/tests/download_test.rs
index 6fd9c61..ea4d411 100644
--- a/crates/dl/tests/dl_test.rs
+++ b/crates/download/tests/download_test.rs
@@ -2,7 +2,7 @@ use moon_pdk_test_utils::{create_extension, ExecuteExtensionInput};
 use starbase_sandbox::create_empty_sandbox;
 use std::fs;
 
-mod dl {
+mod download {
     use super::*;
 
     #[test]
diff --git a/crates/dlu/CHANGELOG.md b/crates/unpack/CHANGELOG.md
similarity index 100%
rename from crates/dlu/CHANGELOG.md
rename to crates/unpack/CHANGELOG.md
diff --git a/crates/dlu/Cargo.toml b/crates/unpack/Cargo.toml
similarity index 71%
rename from crates/dlu/Cargo.toml
rename to crates/unpack/Cargo.toml
index 052dc7a..bc93b9f 100644
--- a/crates/dlu/Cargo.toml
+++ b/crates/unpack/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "moon_extension_dlu"
+name = "moon_extension_unpack"
 version = "0.0.1"
 edition = "2021"
 license = "MIT"
@@ -16,3 +16,7 @@ starbase_archive = { version = "0.2.5", default-features = false, features = [
 	"tar-gz",
 	"zip",
 ] }
+
+[dev-dependencies]
+moon_pdk_test_utils = { workspace = true }
+starbase_sandbox = { workspace = true }
diff --git a/crates/dlu/src/lib.rs b/crates/unpack/src/lib.rs
similarity index 96%
rename from crates/dlu/src/lib.rs
rename to crates/unpack/src/lib.rs
index 7790c48..fe1980d 100644
--- a/crates/dlu/src/lib.rs
+++ b/crates/unpack/src/lib.rs
@@ -14,7 +14,7 @@ extern "ExtismHost" {
 }
 
 #[derive(Args)]
-pub struct DluExtensionArgs {
+pub struct UnpackExtensionArgs {
     #[arg(long, short = 's', required = true)]
     pub src: String,
 
@@ -27,7 +27,7 @@ pub struct DluExtensionArgs {
 
 #[plugin_fn]
 pub fn execute_extension(Json(input): Json<ExecuteExtensionInput>) -> FnResult<()> {
-    let args = parse_args::<DluExtensionArgs>(&input.args)?;
+    let args = parse_args::<UnpackExtensionArgs>(&input.args)?;
 
     // Determine the correct input. If the input is a URL, attempt to download
     // the file, otherwise use the file directly (if within our whitelist).
diff --git a/crates/unpack/tests/unpack_test.rs b/crates/unpack/tests/unpack_test.rs
new file mode 100644
index 0000000..71c78be
--- /dev/null
+++ b/crates/unpack/tests/unpack_test.rs
@@ -0,0 +1,19 @@
+use moon_pdk_test_utils::{create_extension, ExecuteExtensionInput};
+use starbase_sandbox::create_empty_sandbox;
+use std::fs;
+
+mod unpack {
+    use super::*;
+
+    #[test]
+    #[should_panic(expected = "the following required arguments were not provided")]
+    fn errors_if_no_args() {
+        let sandbox = create_empty_sandbox();
+        let plugin = create_extension("test", sandbox.path());
+
+        plugin.execute_extension(ExecuteExtensionInput {
+            args: vec![],
+            context: plugin.create_context(sandbox.path()),
+        });
+    }
+}