# What: expose the existing unconditional build-script dependency input through
# the `rules_rs` crate annotation API.
# Scope: annotation plumbing only; generated dependency resolution is unchanged.

diff --git a/rs/extensions.bzl b/rs/extensions.bzl
--- a/rs/extensions.bzl
+++ b/rs/extensions.bzl
@@ -737,7 +737,7 @@ def _generate_hub_and_spokes(
             additive_build_file = annotation.additive_build_file,
             additive_build_file_content = annotation.additive_build_file_content,
             gen_build_script = annotation.gen_build_script,
-            build_script_deps = [],
+            build_script_deps = annotation.build_script_deps,
             build_script_deps_select = _select(feature_resolutions.build_deps),
             build_script_data = annotation.build_script_data,
             build_script_data_select = annotation.build_script_data_select,
@@ -1417,9 +1417,9 @@ _annotation = tag_class(
         "build_script_data_select": attr.string_list_dict(
             doc = "A list of labels to add to a crate's `cargo_build_script::data` attribute. Keys should be the platform triplet. Value should be a list of labels.",
         ),
-        # "build_script_deps": _relative_label_list(
-        #     doc = "A list of labels to add to a crate's `cargo_build_script::deps` attribute.",
-        # ),
+        "build_script_deps": _relative_label_list(
+            doc = "A list of labels to add to a crate's `cargo_build_script::deps` attribute.",
+        ),
         "build_script_env": attr.string_dict(
             doc = "Additional environment variables to set on a crate's `cargo_build_script::env` attribute.",
         ),
diff --git a/rs/private/annotations.bzl b/rs/private/annotations.bzl
--- a/rs/private/annotations.bzl
+++ b/rs/private/annotations.bzl
@@ -5,6 +5,7 @@ def _crate_annotation(
         gen_build_script = "auto",
         build_script_data = [],
         build_script_data_select = {},
+        build_script_deps = [],
         build_script_env = {},
         build_script_env_select = {},
         build_script_tools = [],
@@ -28,6 +29,7 @@ def _crate_annotation(
         gen_build_script = gen_build_script,
         build_script_data = build_script_data,
         build_script_data_select = build_script_data_select,
+        build_script_deps = build_script_deps,
         build_script_env = build_script_env,
         build_script_env_select = build_script_env_select,
         build_script_tools = build_script_tools,
diff --git a/rs/private/repository_utils.bzl b/rs/private/repository_utils.bzl
--- a/rs/private/repository_utils.bzl
+++ b/rs/private/repository_utils.bzl
@@ -216,7 +216,7 @@ common_attrs = {
     "additive_build_file": attr.label(),
     "additive_build_file_content": attr.string(),
     "gen_build_script": attr.string(),
-    "build_script_deps": attr.label_list(default = []),
+    "build_script_deps": attr.string_list(default = []),
     "build_script_deps_select": attr.string_list_dict(),
     "build_script_data": attr.label_list(default = []),
     "build_script_data_select": attr.string_list_dict(),