diff --git a/cloud/shepherd/manager/test_agent/BUILD.bazel b/cloud/shepherd/manager/test_agent/BUILD.bazel
new file mode 100644
index 0000000..7636cdd
--- /dev/null
+++ b/cloud/shepherd/manager/test_agent/BUILD.bazel
@@ -0,0 +1,28 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
+load("//build/static_binary_tarball:def.bzl", "static_binary_tarball")
+
+go_binary(
+    name = "test_agent",
+    embed = [":test_agent_lib"],
+    visibility = [
+        "//cloud/shepherd/manager:__pkg__",
+    ],
+)
+
+go_library(
+    name = "test_agent_lib",
+    srcs = ["main.go"],
+    importpath = "source.monogon.dev/cloud/shepherd/manager/test_agent",
+    visibility = ["//visibility:private"],
+    deps = [
+        "//cloud/agent/api",
+        "@org_golang_google_protobuf//proto",
+    ],
+)
+
+# Used by container_images, forces a static build of the test_agent.
+static_binary_tarball(
+    name = "test_agent_layer",
+    executable = ":test_agent",
+    visibility = ["//visibility:public"],
+)