diff --git a/bin/download b/bin/download
index c11ee53..38c6411 100755
--- a/bin/download
+++ b/bin/download
@@ -10,7 +10,6 @@ source "${plugin_dir}/lib/utils.bash"
 
 mkdir -p "$ASDF_DOWNLOAD_PATH"
 
-# TODO: Adapt this to proper extension and adapt extracting strategy.
 release_file="$ASDF_DOWNLOAD_PATH/$TOOL_NAME-$ASDF_INSTALL_VERSION.tar.gz"
 
 # Download tar.gz file to the download directory
diff --git a/lib/utils.bash b/lib/utils.bash
index 1a5f30e..de8be70 100644
--- a/lib/utils.bash
+++ b/lib/utils.bash
@@ -2,7 +2,6 @@
 
 set -euo pipefail
 
-# TODO: Ensure this is the correct GitHub homepage where releases can be downloaded for shorebird.
 GH_REPO="https://github.com/shorebirdtech/shorebird"
 TOOL_NAME="shorebird"
 TOOL_TEST="shorebird --version"
@@ -31,7 +30,6 @@ list_github_tags() {
 }
 
 list_all_versions() {
-	# TODO: Adapt this. By default we simply list the tag names from GitHub releases.
 	# Change this function if shorebird has other means of determining installable versions.
 	list_github_tags
 }
@@ -41,7 +39,6 @@ download_release() {
 	version="$1"
 	filename="$2"
 
-	# TODO: Adapt the release URL convention for shorebird
 	url="$GH_REPO/archive/v${version}.tar.gz"
 
 	echo "* Downloading $TOOL_NAME release $version..."
@@ -61,9 +58,9 @@ install_version() {
 		mkdir -p "$install_path"
 		cp -r "$ASDF_DOWNLOAD_PATH"/* "$install_path"
 
-		# TODO: Assert shorebird executable exists.
 		local tool_cmd
 		tool_cmd="$(echo "$TOOL_TEST" | cut -d' ' -f1)"
+		chmod +x "$install_path/$tool_cmd"
 		test -x "$install_path/$tool_cmd" || fail "Expected $install_path/$tool_cmd to be executable."
 
 		echo "$TOOL_NAME $version installation was successful!"