diff --git a/dvc/repo/reproduce.py b/dvc/repo/reproduce.py
index df5df0389..231662a04 100644
--- a/dvc/repo/reproduce.py
+++ b/dvc/repo/reproduce.py
@@ -3,6 +3,8 @@ from functools import partial
 from typing import TYPE_CHECKING, Iterator, List
 
 from dvc.exceptions import DvcException, ReproductionError
+from dvc.repo.metrics.show import _collect_top_level_metrics
+from dvc.repo.params.show import _collect_top_level_params
 from dvc.repo.scm_context import scm_context
 from dvc.stage.exceptions import CheckpointKilledError
 
@@ -74,6 +76,17 @@ def _track_stage(stage: "Stage") -> None:
     return context.track_changed_files()
 
 
+def _track_top_level(repo: "Repo") -> None:
+    context = repo.scm_context
+    for metric_file in _collect_top_level_metrics(repo):
+        context.track_file(metric_file)
+    for param_file in _collect_top_level_params(repo):
+        context.track_file(param_file)
+    for plot_file in repo.index._plot_sources:  # pylint: disable=protected-access
+        context.track_file(plot_file)
+    context.track_changed_files()
+
+
 @locked
 @scm_context
 def reproduce(  # noqa: C901
@@ -125,7 +138,9 @@ def reproduce(  # noqa: C901
                 )
             )
 
-    return _reproduce_stages(self.index.graph, list(stages), **kwargs)
+    result = _reproduce_stages(self.index.graph, list(stages), **kwargs)
+    _track_top_level(self)
+    return result
 
 
 def _reproduce_stages(  # noqa: C901
diff --git a/tests/func/experiments/test_experiments.py b/tests/func/experiments/test_experiments.py
index f6e9d5b5e..794adf7bc 100644
--- a/tests/func/experiments/test_experiments.py
+++ b/tests/func/experiments/test_experiments.py
@@ -683,3 +683,24 @@ def test_local_config_is_propagated_to_tmp(tmp_dir, scm, dvc):
     with fs.open("file") as fobj:
         conf_obj = ConfigObj(fobj)
         assert conf_obj["cache"]["type"] == "hardlink"
+
+
+@pytest.mark.parametrize("tmp", [True, False])
+def test_untracked_top_level_files_are_included_in_exp(tmp_dir, scm, dvc, tmp):
+    (tmp_dir / "dvc.yaml").dump(
+        {
+            "metrics": ["metrics.json"],
+            "params": ["params.yaml"],
+            "plots": ["plots.csv"],
+        }
+    )
+    stage = dvc.stage.add(
+        cmd="touch metrics.json && touch params.yaml && touch plots.csv",
+        name="top-level",
+    )
+    scm.add_commit(["dvc.yaml"], message="add dvc.yaml")
+    results = dvc.experiments.run(stage.addressing, tmp_dir=tmp)
+    exp = first(results)
+    fs = scm.get_fs(exp)
+    for file in ["metrics.json", "params.yaml", "plots.csv"]:
+        assert fs.exists(file)