diff --git a/.github/container/jax_nsys/Analysis.ipynb b/.github/container/jax_nsys/Analysis.ipynb
index db8cf3988..fd21b93d5 100644
--- a/.github/container/jax_nsys/Analysis.ipynb
+++ b/.github/container/jax_nsys/Analysis.ipynb
@@ -16,14 +16,10 @@
     "    generate_compilation_statistics,\n",
     "    load_profiler_data,\n",
     "    remove_autotuning_detail,\n",
-    "    remove_child_ranges,\n",
     "    xla_module_metadata,\n",
     ")\n",
     "import matplotlib.pyplot as plt\n",
-    "import numpy as np\n",
-    "import os\n",
-    "import pandas as pd  # type: ignore\n",
-    "import sys"
+    "import numpy as np"
    ]
   },
   {
@@ -35,7 +31,7 @@
    "source": [
     "# Make sure that the .proto files under protos/ have been compiled to .py, and\n",
     "# that those generated .py files are importable.]\n",
-    "ensure_compiled_protos_are_importable();"
+    "compiled_dir = ensure_compiled_protos_are_importable()"
    ]
   },
   {
diff --git a/.github/container/jax_nsys/python/jax_nsys/jax_nsys/protobuf_utils.py b/.github/container/jax_nsys/python/jax_nsys/jax_nsys/protobuf_utils.py
index a6de1cd78..03b1b4816 100644
--- a/.github/container/jax_nsys/python/jax_nsys/jax_nsys/protobuf_utils.py
+++ b/.github/container/jax_nsys/python/jax_nsys/jax_nsys/protobuf_utils.py
@@ -63,7 +63,7 @@ def ensure_compiled_protos_are_importable(*, prefix: pathlib.Path = pathlib.Path
 
     def do_import():
         # Use this as a proxy for everything being importable
-        from xla.service import hlo_pb2
+        from xla.service import hlo_pb2  # noqa: F401
 
     try:
         do_import()
diff --git a/.github/container/jax_nsys/python/jax_nsys_analysis/summary.py b/.github/container/jax_nsys/python/jax_nsys_analysis/summary.py
index f4a6ade7f..9fd6ae52e 100755
--- a/.github/container/jax_nsys/python/jax_nsys_analysis/summary.py
+++ b/.github/container/jax_nsys/python/jax_nsys_analysis/summary.py
@@ -7,7 +7,6 @@
     load_profiler_data,
     remove_autotuning_detail,
 )
-import pandas as pd
 import pathlib
 
 parser = argparse.ArgumentParser(
@@ -26,6 +25,7 @@
 # Partition the profile data into initialisation and steady-state running
 init, steady_state = apply_warmup_heuristics(all_data)
 # Get high-level statistics about the modules that were profiled
+assert steady_state.module is not None
 module_stats = (
     steady_state.module.groupby("ProgramId")
     .agg(