diff --git a/multibody/parsing/dev/BUILD.bazel b/multibody/parsing/dev/BUILD.bazel
index 9964f3a690e6..8270b45d3a6a 100644
--- a/multibody/parsing/dev/BUILD.bazel
+++ b/multibody/parsing/dev/BUILD.bazel
@@ -4,17 +4,15 @@ load(
     "@drake//tools/skylark:drake_cc.bzl",
     "drake_cc_googletest",
     "drake_cc_library",
-    "drake_cc_package_library",
 )
 load("//tools/lint:lint.bzl", "add_lint_tests")
-load("//tools/install:install_data.bzl", "install_data")
 
 drake_cc_library(
     name = "process_model_directives",
     srcs = ["process_model_directives.cc"],
     hdrs = ["process_model_directives.h"],
     data = [
-        "@drake//manipulation/models/jaco_description:models",
+        "//manipulation/models/jaco_description:models",
     ],
     deps = [
         ":model_directives",
@@ -26,10 +24,16 @@ drake_cc_library(
     ],
 )
 
+filegroup(
+    name = "process_model_directives_test_models",
+    testonly = True,
+    data = glob(["test/process_model_directives_test/**"]),
+)
+
 drake_cc_googletest(
     name = "process_model_directives_test",
     data = [
-        ":test_models",
+        ":process_model_directives_test_models",
     ],
     deps = [
         ":process_model_directives",
@@ -45,7 +49,7 @@ drake_cc_library(
         "//common:essential",
         "//common:name_value",
         "//common/schema/dev:transform",
-        "//math",
+        "//math:geometric_transform",
     ],
 )
 
@@ -57,8 +61,4 @@ drake_cc_googletest(
     ],
 )
 
-install_data(
-    extra_tags = ["nolint"],  # `dev` content is never actually installed.
-)
-
 add_lint_tests()
diff --git a/multibody/parsing/dev/README.md b/multibody/parsing/dev/README.md
index 49203d470aff..15a563c496b6 100644
--- a/multibody/parsing/dev/README.md
+++ b/multibody/parsing/dev/README.md
@@ -26,7 +26,8 @@ Within this group are a series of directives:
  * `AddModelInstance` Creates a new, empty model instance in the plant with
    the indicated `name`.
  * `AddPackagePath` takes `name` and `path` and makes `package://name` URIs
-   be resolved to `path`.
+   be resolved to `path`.  This directive is due for deprecation soon and
+   should generally be avoided.
  * `AddFrame` takes a `name` and a `X_PF` transform and adds a new frame to
    the model.  Note that the transform is as specified in the `Transform`
    scenario schema and can reference an optional base frame, in which case
diff --git a/multibody/parsing/dev/model_directives.h b/multibody/parsing/dev/model_directives.h
index a8c0308a61ff..5679c01edb2a 100644
--- a/multibody/parsing/dev/model_directives.h
+++ b/multibody/parsing/dev/model_directives.h
@@ -19,8 +19,6 @@
 namespace drake {
 namespace multibody {
 namespace parsing {
-namespace dev {
-namespace schema {
 
 struct AddWeld {
   bool IsValid() const {
@@ -236,8 +234,6 @@ inline void AddPackageToModelDirectives(const std::string& package_name,
       directives->directives.begin(), directive);
 }
 
-}  // namespace schema
-}  // namespace dev
 }  // namespace parsing
 }  // namespace multibody
 }  // namespace drake
diff --git a/multibody/parsing/dev/process_model_directives.cc b/multibody/parsing/dev/process_model_directives.cc
index ee89b70cdbf7..c8d7fc3c47c2 100644
--- a/multibody/parsing/dev/process_model_directives.cc
+++ b/multibody/parsing/dev/process_model_directives.cc
@@ -14,7 +14,6 @@
 namespace drake {
 namespace multibody {
 namespace parsing {
-namespace dev {
 
 using std::make_unique;
 using Eigen::Isometry3d;
@@ -30,8 +29,6 @@ using drake::multibody::PackageMap;
 using drake::multibody::Parser;
 using drake::yaml::YamlReadArchive;
 
-using schema::ModelDirectives;
-
 namespace {
 
 // If `*ptr` is null, construct `T(args...)` and reassign the pointer.
@@ -334,9 +331,9 @@ ModelDirectives LoadModelDirectives(const std::string& filename) {
 }
 
 void FlattenModelDirectives(
-    const schema::ModelDirectives& directives,
+    const ModelDirectives& directives,
     const PackageMap& package_map,
-    schema::ModelDirectives* out) {
+    ModelDirectives* out) {
   // NOTE: Does not handle scoping!
   for (auto& directive : directives.directives) {
     if (directive.add_directives) {
@@ -365,9 +362,9 @@ ModelInfo MakeModelInfo(const std::string& model_name,
 
 // TODO(eric.cousineau): Do we *really* need this function? This seems like
 // it'd be better handled as an MBP subgraph.
-schema::ModelDirectives MakeModelsAttachedToFrameDirectives(
+ModelDirectives MakeModelsAttachedToFrameDirectives(
     const std::vector<ModelInfo>& models_to_add) {
-  schema::ModelDirectives directives;
+  ModelDirectives directives;
 
   // One for add frame, one for add model, one for add weld.
   directives.directives.resize(models_to_add.size() * 3);
@@ -379,7 +376,7 @@ schema::ModelDirectives MakeModelsAttachedToFrameDirectives(
 
     // Add frame first.
     if (!model_to_add.X_PC.IsExactlyIdentity()) {
-      schema::AddFrame frame_dir;
+      AddFrame frame_dir;
       attachment_frame_name = model_to_add.model_name + "_attachment_frame";
       frame_dir.name = attachment_frame_name;
       frame_dir.X_PF.base_frame = model_to_add.parent_frame_name;
@@ -392,13 +389,13 @@ schema::ModelDirectives MakeModelsAttachedToFrameDirectives(
     }
 
     // Add model
-    schema::AddModel model_dir;
+    AddModel model_dir;
     model_dir.file = model_to_add.model_path;
     model_dir.name = model_to_add.model_name;
 
     directives.directives.at(index++).add_model = model_dir;
 
-    schema::AddWeld weld_dir;
+    AddWeld weld_dir;
     weld_dir.parent = attachment_frame_name;
     weld_dir.child =
         model_to_add.model_name + "::" + model_to_add.child_frame_name;
@@ -409,8 +406,6 @@ schema::ModelDirectives MakeModelsAttachedToFrameDirectives(
   return directives;
 }
 
-
-}  // namespace dev
 }  // namespace parsing
 }  // namespace multibody
 }  // namespace drake
diff --git a/multibody/parsing/dev/process_model_directives.h b/multibody/parsing/dev/process_model_directives.h
index 3b6eeaca3e4f..78aec2d2a6b4 100644
--- a/multibody/parsing/dev/process_model_directives.h
+++ b/multibody/parsing/dev/process_model_directives.h
@@ -1,8 +1,5 @@
 #pragma once
 
-/// Processes stuff from `common/schema/model_directives.h`. See
-// `common/schema/README.md` for more info.
-
 #include <optional>
 #include <string>
 #include <vector>
@@ -16,9 +13,8 @@
 namespace drake {
 namespace multibody {
 namespace parsing {
-namespace dev {
 
-schema::ModelDirectives LoadModelDirectives(const std::string& filename);
+ModelDirectives LoadModelDirectives(const std::string& filename);
 
 /// ModelDirectives refer to their resources by URIs like
 /// `package://somepackage/somepath/somefile.sdf`, where somepackage refers to
@@ -59,13 +55,13 @@ ModelInfo MakeModelInfo(
  * `child_frame_name` to `parent_frame_name` directly. The `model_instance`
  * field is ignored for this purposes.
  */
-schema::ModelDirectives MakeModelsAttachedToFrameDirectives(
+ModelDirectives MakeModelsAttachedToFrameDirectives(
     const std::vector<ModelInfo>& models_to_add);
 
 // Flatten model directives.
-void FlattenModelDirectives(const schema::ModelDirectives& directives,
+void FlattenModelDirectives(const ModelDirectives& directives,
                             const drake::multibody::PackageMap& package_map,
-                            schema::ModelDirectives* out);
+                            ModelDirectives* out);
 
 /// Provides a magical way to inject error (randomization) for synthesis.
 /// Maps from (parent_frame, child_frame) -> X_PCe, where Ce is the perturbed
@@ -81,7 +77,7 @@ using ModelWeldErrorFunction =
 /// Note: The passed-in parser will be mutated to add the jaco_description
 /// package to its package map (since model directives and their contents are
 /// allowed to refer to the package directly for workaround reasons).
-void ProcessModelDirectives(const schema::ModelDirectives& directives,
+void ProcessModelDirectives(const ModelDirectives& directives,
                             drake::multibody::MultibodyPlant<double>* plant,
                             std::vector<ModelInfo>* added_models = nullptr,
                             drake::multibody::Parser* parser = nullptr,
@@ -129,7 +125,6 @@ ScopedName ParseScopedName(const std::string& full_name);
 
 }  // namespace internal
 
-}  // namespace dev
 }  // namespace parsing
 }  // namespace multibody
 }  // namespace drake
diff --git a/multibody/parsing/dev/test/model_directives_test.cc b/multibody/parsing/dev/test/model_directives_test.cc
index 402427e2fcad..4de1b3a33206 100644
--- a/multibody/parsing/dev/test/model_directives_test.cc
+++ b/multibody/parsing/dev/test/model_directives_test.cc
@@ -10,8 +10,6 @@ using drake::yaml::YamlReadArchive;
 namespace drake {
 namespace multibody {
 namespace parsing {
-namespace dev {
-namespace schema {
 namespace {
 
 // TODO(jeremy.nimmer) We can remove this argument from the call sites below
@@ -51,8 +49,6 @@ GTEST_TEST(ModelDirectivesTest, Success) {
 }
 
 }  // namespace
-}  // namespace schema
-}  // namespace dev
 }  // namespace parsing
 }  // namespace multibody
 }  // namespace drake
diff --git a/multibody/parsing/dev/test/process_model_directives_test.cc b/multibody/parsing/dev/test/process_model_directives_test.cc
index 0ded3e4f2169..831a47d0752f 100644
--- a/multibody/parsing/dev/test/process_model_directives_test.cc
+++ b/multibody/parsing/dev/test/process_model_directives_test.cc
@@ -12,7 +12,6 @@
 namespace drake {
 namespace multibody {
 namespace parsing {
-namespace dev {
 namespace {
 
 using std::optional;
@@ -22,14 +21,16 @@ using drake::multibody::Frame;
 using drake::multibody::MultibodyPlant;
 using drake::multibody::Parser;
 using drake::systems::DiagramBuilder;
-using schema::ModelDirectives;
+
+const char* const kTestDir =
+    "drake/multibody/parsing/dev/test/process_model_directives_test";
 
 // Our unit test's package is not normally loaded; construct a parser that
 // has it and can resolve package://process_model_directives_test urls.
 std::unique_ptr<Parser> make_parser(MultibodyPlant<double>* plant) {
   auto parser = std::make_unique<Parser>(plant);
   const drake::filesystem::path abspath_xml = FindResourceOrThrow(
-          "drake/multibody/parsing/dev/test/models/package.xml");
+      std::string(kTestDir) + "/package.xml");
   parser->package_map().AddPackageXml(abspath_xml.string());
   return parser;
 }
@@ -37,8 +38,7 @@ std::unique_ptr<Parser> make_parser(MultibodyPlant<double>* plant) {
 // Simple smoke test of the most basic model directives.
 GTEST_TEST(ProcessModelDirectivesTest, BasicSmokeTest) {
   ModelDirectives station_directives = LoadModelDirectives(
-      FindResourceOrThrow(
-          "drake/multibody/parsing/dev/test/models/add_scoped_sub.yaml"));
+      FindResourceOrThrow(std::string(kTestDir) + "/add_scoped_sub.yaml"));
   const MultibodyPlant<double> empty_plant(0.0);
 
   MultibodyPlant<double> plant(0.0);
@@ -62,8 +62,7 @@ GTEST_TEST(ProcessModelDirectivesTest, BasicSmokeTest) {
 // testing its interaction with SceneGraph.
 GTEST_TEST(ProcessModelDirectivesTest, AddScopedSmokeTest) {
   ModelDirectives directives = LoadModelDirectives(
-      FindResourceOrThrow(
-          "drake/multibody/parsing/dev/test/models/add_scoped_top.yaml"));
+      FindResourceOrThrow(std::string(kTestDir) + "/add_scoped_top.yaml"));
 
   // Ensure that we have a SceneGraph present so that we test relevant visual
   // pieces.
@@ -105,8 +104,7 @@ GTEST_TEST(ProcessModelDirectivesTest, AddScopedSmokeTest) {
 GTEST_TEST(ProcessModelDirectivesTest, SmokeTestInjectWeldError) {
   const RigidTransformd error_transform({0.1, 0., 0.1}, {2, 3, 4});
   ModelDirectives directives = LoadModelDirectives(
-      FindResourceOrThrow(
-          "drake/multibody/parsing/dev/test/models/add_scoped_sub.yaml"));
+      FindResourceOrThrow(std::string(kTestDir) + "/add_scoped_sub.yaml"));
 
   // This error function should add model error to exactly one weld, the
   // attachment of the `first_instance` sdf model to the `smoke_test_origin`
@@ -155,7 +153,6 @@ GTEST_TEST(ProcessModelDirectivesTest, SmokeTestInjectWeldError) {
 }
 
 }  // namespace
-}  // namespace dev
 }  // namespace parsing
 }  // namespace multibody
 }  // namespace drake
diff --git a/multibody/parsing/dev/test/models/add_backreference.yaml b/multibody/parsing/dev/test/process_model_directives_test/add_backreference.yaml
similarity index 100%
rename from multibody/parsing/dev/test/models/add_backreference.yaml
rename to multibody/parsing/dev/test/process_model_directives_test/add_backreference.yaml
diff --git a/multibody/parsing/dev/test/models/add_scoped_mid.yaml b/multibody/parsing/dev/test/process_model_directives_test/add_scoped_mid.yaml
similarity index 100%
rename from multibody/parsing/dev/test/models/add_scoped_mid.yaml
rename to multibody/parsing/dev/test/process_model_directives_test/add_scoped_mid.yaml
diff --git a/multibody/parsing/dev/test/models/add_scoped_sub.yaml b/multibody/parsing/dev/test/process_model_directives_test/add_scoped_sub.yaml
similarity index 100%
rename from multibody/parsing/dev/test/models/add_scoped_sub.yaml
rename to multibody/parsing/dev/test/process_model_directives_test/add_scoped_sub.yaml
diff --git a/multibody/parsing/dev/test/models/add_scoped_top.yaml b/multibody/parsing/dev/test/process_model_directives_test/add_scoped_top.yaml
similarity index 100%
rename from multibody/parsing/dev/test/models/add_scoped_top.yaml
rename to multibody/parsing/dev/test/process_model_directives_test/add_scoped_top.yaml
diff --git a/multibody/parsing/dev/test/models/circle.png b/multibody/parsing/dev/test/process_model_directives_test/circle.png
similarity index 100%
rename from multibody/parsing/dev/test/models/circle.png
rename to multibody/parsing/dev/test/process_model_directives_test/circle.png
diff --git a/multibody/parsing/dev/test/models/package.xml b/multibody/parsing/dev/test/process_model_directives_test/package.xml
similarity index 100%
rename from multibody/parsing/dev/test/models/package.xml
rename to multibody/parsing/dev/test/process_model_directives_test/package.xml
diff --git a/multibody/parsing/dev/test/models/simple_model.sdf b/multibody/parsing/dev/test/process_model_directives_test/simple_model.sdf
similarity index 83%
rename from multibody/parsing/dev/test/models/simple_model.sdf
rename to multibody/parsing/dev/test/process_model_directives_test/simple_model.sdf
index b38bc16b63ea..90e709ee4775 100644
--- a/multibody/parsing/dev/test/models/simple_model.sdf
+++ b/multibody/parsing/dev/test/process_model_directives_test/simple_model.sdf
@@ -13,7 +13,8 @@
         </geometry>
         <material>
           <!--
-          Test usage of diffuse map from a non-neighboring Anzu resource.
+              Test usage of diffuse map from a separate resource that requires
+              package:// URI resolution.
           -->
           <drake:diffuse_map>
             package://process_model_directives_test/circle.png
diff --git a/tools/install/install_data.bzl b/tools/install/install_data.bzl
index 8281b79fcfb2..7cc2f0f68e82 100644
--- a/tools/install/install_data.bzl
+++ b/tools/install/install_data.bzl
@@ -6,8 +6,7 @@ def install_data(
         name = "models",
         prod_models_prefix = "prod_",
         test_models_prefix = "test_",
-        extra_prod_models = [],
-        extra_tags = []):
+        extra_prod_models = []):
     """Install data
 
     This macro creates 3 filegroups:
@@ -45,9 +44,8 @@ def install_data(
         "vtm",
         "vtp",
         "xml",
-        "yaml",
     ]
-    exclude_patterns = ["**/test/*", "**/test/models/*", "**/test*"]
+    exclude_patterns = ["**/test/*", "**/test*"]
     prod_models_include = ["**/*.{}".format(x) for x in models_extensions]
     test_models_include = [
         p + m
@@ -83,6 +81,6 @@ def install_data(
         name = "install_data",
         data = [prod_models_target],
         data_dest = "share/drake/" + native.package_name(),
-        tags = ["install"] + extra_tags,
+        tags = ["install"],
         visibility = ["//visibility:public"],
     )