diff --git a/.github/workflows/cli-tests.yml b/.github/workflows/cli-tests.yml
new file mode 100644
index 0000000..bcfd7ed
--- /dev/null
+++ b/.github/workflows/cli-tests.yml
@@ -0,0 +1,41 @@
+name: CLI Tests
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    name: Test CLI on ${{ matrix.python-version }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        # Test 3.9 for T7, 3.12 for general/cloud use
+        python-version: ["3.9", "3.12"]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install Poetry
+        uses: abatilo/actions-poetry@v4
+
+      - name: Configure Poetry to use in-project virtualenv
+        run: poetry config virtualenvs.in-project true
+
+      - name: Install dependencies (including dev/test) and project
+        run: poetry install --with dev --no-interaction
+
+      - name: Smoke-test CLI on Python 3.9
+        if: matrix.python-version == '3.9'
+        run: poetry run python scripts/smoke_test_cli.py
+
+      - name: Run full test suite (Python >= 3.10)
+        if: matrix.python-version != '3.9'
+        run: poetry run pytest -q
diff --git a/cwmscli/commands/blob.py b/cwmscli/commands/blob.py
index 09278cc..fd65f9c 100644
--- a/cwmscli/commands/blob.py
+++ b/cwmscli/commands/blob.py
@@ -7,10 +7,6 @@
 import sys
 from typing import Optional, Sequence
 
-import cwms
-import pandas as pd
-import requests
-
 from cwmscli.utils import get_api_key
 from cwmscli.utils.deps import requires
 
@@ -90,6 +86,9 @@ def _save_base64(
 
 
 def store_blob(**kwargs):
+    import cwms
+    import requests
+
     file_data = kwargs.get("file_data")
     blob_id = kwargs.get("blob_id", "").upper()
     # Attempt to determine what media type should be used for the mime-type if one is not presented based on the file extension
@@ -145,6 +144,9 @@ def store_blob(**kwargs):
 
 
 def retrieve_blob(**kwargs):
+    import cwms
+    import requests
+
     blob_id = kwargs.get("blob_id", "").upper()
     if not blob_id:
         logging.warning(
@@ -172,14 +174,17 @@ def retrieve_blob(**kwargs):
 
 
 def delete_blob(**kwargs):
+    import cwms
+    import requests
+
     blob_id = kwargs.get("blob_id").upper()
     logging.debug(f"Office: {kwargs.get('office')}  Blob ID: {blob_id}")
 
     try:
-        # cwms.delete_blob(
-        #     office_id=kwargs.get("office"),
-        #     blob_id=kwargs.get("blob_id").upper(),
-        # )
+        cwms.delete_blob(
+            office_id=kwargs.get("office"),
+            blob_id=kwargs.get("blob_id").upper(),
+        )
         logging.info(f"Successfully deleted blob with ID: {blob_id}")
     except requests.HTTPError as e:
         details = getattr(e.response, "text", "") or str(e)
@@ -197,8 +202,11 @@ def list_blobs(
     sort_by: Optional[Sequence[str]] = None,
     ascending: bool = True,
     limit: Optional[int] = None,
-) -> pd.DataFrame:
+):
     logging.info(f"Listing blobs for office: {office!r}...")
+    import cwms
+    import pandas as pd
+
     result = cwms.get_blobs(office_id=office, blob_id_like=blob_id_like)
 
     # Accept either a DataFrame or a JSON/dict-like response
@@ -250,6 +258,9 @@ def upload_cmd(
     api_root: str,
     api_key: str,
 ):
+    import cwms
+    import requests
+
     cwms.init_session(api_root=api_root, api_key=get_api_key(api_key, ""))
     try:
         file_size = os.path.getsize(input_file)
@@ -307,6 +318,9 @@ def upload_cmd(
 def download_cmd(
     blob_id: str, dest: str, office: str, api_root: str, api_key: str, dry_run: bool
 ):
+    import cwms
+    import requests
+
     if dry_run:
         logging.info(
             f"DRY RUN: would GET {api_root} blob with blob-id={blob_id} office={office}."
@@ -331,6 +345,8 @@ def download_cmd(
 
 
 def delete_cmd(blob_id: str, office: str, api_root: str, api_key: str, dry_run: bool):
+    import cwms
+
     if dry_run:
         logging.info(
             f"DRY RUN: would DELETE {api_root} blob with blob-id={blob_id} office={office}"
@@ -352,6 +368,8 @@ def update_cmd(
     api_root: str,
     api_key: str,
 ):
+    import cwms
+
     if dry_run:
         logging.info(
             f"DRY RUN: would PATCH {api_root} blob with blob-id={blob_id} office={office}"
@@ -398,6 +416,9 @@ def list_cmd(
     api_root: str,
     api_key: str,
 ):
+    import cwms
+    import pandas as pd
+
     cwms.init_session(api_root=api_root, api_key=get_api_key(api_key, None))
     df = list_blobs(
         office=office,
diff --git a/cwmscli/commands/commands_cwms.py b/cwmscli/commands/commands_cwms.py
index 6b75cb0..48ecd36 100644
--- a/cwmscli/commands/commands_cwms.py
+++ b/cwmscli/commands/commands_cwms.py
@@ -107,7 +107,6 @@ def csv2cwms_cmd(**kwargs):
 """
     ),
 )
-@requires(reqs.cwms)
 def blob_group():
     pass
 
@@ -137,6 +136,7 @@ def blob_group():
 )
 @click.option("--dry-run", is_flag=True, help="Show request; do not send.")
 @common_api_options
+@requires(reqs.cwms)
 def blob_upload(**kwargs):
     from cwmscli.commands.blob import upload_cmd
 
@@ -156,6 +156,7 @@ def blob_upload(**kwargs):
 )
 @click.option("--dry-run", is_flag=True, help="Show request; do not send.")
 @common_api_options
+@requires(reqs.cwms)
 def blob_download(**kwargs):
     from cwmscli.commands.blob import download_cmd
 
@@ -169,6 +170,7 @@ def blob_download(**kwargs):
 @click.option("--blob-id", required=True, type=str, help="Blob ID to delete.")
 @click.option("--dry-run", is_flag=True, help="Show request; do not send.")
 @common_api_options
+@requires(reqs.cwms)
 def delete_cmd(**kwargs):
     from cwmscli.commands.blob import delete_cmd
 
@@ -204,6 +206,7 @@ def delete_cmd(**kwargs):
     help="If true, replace existing blob.",
 )
 @common_api_options
+@requires(reqs.cwms)
 def update_cmd(**kwargs):
     from cwmscli.commands.blob import update_cmd
 
@@ -243,6 +246,7 @@ def update_cmd(**kwargs):
     help="If set, write results to this CSV file.",
 )
 @common_api_options
+@requires(reqs.cwms)
 def list_cmd(**kwargs):
     from cwmscli.commands.blob import list_cmd
 
diff --git a/poetry.lock b/poetry.lock
index 9d68abd..25305e7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -307,6 +307,25 @@ files = [
     {file = "distro-1.9.0.tar.gz", hash = "sha256:2fa77c6fd8940f116ee1d6b94a2f90b13b5ea8d019b98bc8bafdcabcdd9bdbed"},
 ]
 
+[[package]]
+name = "exceptiongroup"
+version = "1.3.1"
+description = "Backport of PEP 654 (exception groups)"
+optional = false
+python-versions = ">=3.7"
+groups = ["dev"]
+markers = "python_version == \"3.10\""
+files = [
+    {file = "exceptiongroup-1.3.1-py3-none-any.whl", hash = "sha256:a7a39a3bd276781e98394987d3a5701d0c4edffb633bb7a5144577f82c773598"},
+    {file = "exceptiongroup-1.3.1.tar.gz", hash = "sha256:8b412432c6055b0b7d14c310000ae93352ed6754f70fa8f7c34141f91c4e3219"},
+]
+
+[package.dependencies]
+typing-extensions = {version = ">=4.6.0", markers = "python_version < \"3.13\""}
+
+[package.extras]
+test = ["pytest (>=6)"]
+
 [[package]]
 name = "filelock"
 version = "3.19.1"
@@ -379,6 +398,19 @@ files = [
 [package.extras]
 all = ["flake8 (>=7.1.1)", "mypy (>=1.11.2)", "pytest (>=8.3.2)", "ruff (>=0.6.2)"]
 
+[[package]]
+name = "iniconfig"
+version = "2.3.0"
+description = "brain-dead simple config-ini parsing"
+optional = false
+python-versions = ">=3.10"
+groups = ["dev"]
+markers = "python_version >= \"3.10\""
+files = [
+    {file = "iniconfig-2.3.0-py3-none-any.whl", hash = "sha256:f631c04d2c48c52b84d0d0549c99ff3859c98df65b3101406327ecc7d53fbf12"},
+    {file = "iniconfig-2.3.0.tar.gz", hash = "sha256:c76315c77db068650d49c5b56314774a7804df16fee4402c1f19d6d15d8c4730"},
+]
+
 [[package]]
 name = "isort"
 version = "5.13.2"
@@ -962,6 +994,23 @@ docs = ["furo (>=2025.9.25)", "proselint (>=0.14)", "sphinx (>=8.2.3)", "sphinx-
 test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=8.4.2)", "pytest-cov (>=7)", "pytest-mock (>=3.15.1)"]
 type = ["mypy (>=1.18.2)"]
 
+[[package]]
+name = "pluggy"
+version = "1.6.0"
+description = "plugin and hook calling mechanisms for python"
+optional = false
+python-versions = ">=3.9"
+groups = ["dev"]
+markers = "python_version >= \"3.10\""
+files = [
+    {file = "pluggy-1.6.0-py3-none-any.whl", hash = "sha256:e920276dd6813095e9377c0bc5566d94c932c33b27a3e3945d8389c374dd4746"},
+    {file = "pluggy-1.6.0.tar.gz", hash = "sha256:7dcc130b76258d33b90f61b658791dede3486c3e6bfb003ee5c9bfb396dd22f3"},
+]
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+testing = ["coverage", "pytest", "pytest-benchmark"]
+
 [[package]]
 name = "pre-commit"
 version = "3.8.0"
@@ -1223,6 +1272,31 @@ files = [
 [package.extras]
 windows-terminal = ["colorama (>=0.4.6)"]
 
+[[package]]
+name = "pytest"
+version = "9.0.2"
+description = "pytest: simple powerful testing with Python"
+optional = false
+python-versions = ">=3.10"
+groups = ["dev"]
+markers = "python_version >= \"3.10\""
+files = [
+    {file = "pytest-9.0.2-py3-none-any.whl", hash = "sha256:711ffd45bf766d5264d487b917733b453d917afd2b0ad65223959f59089f875b"},
+    {file = "pytest-9.0.2.tar.gz", hash = "sha256:75186651a92bd89611d1d9fc20f0b4345fd827c41ccd5c299a868a05d70edf11"},
+]
+
+[package.dependencies]
+colorama = {version = ">=0.4", markers = "sys_platform == \"win32\""}
+exceptiongroup = {version = ">=1", markers = "python_version < \"3.11\""}
+iniconfig = ">=1.0.1"
+packaging = ">=22"
+pluggy = ">=1.5,<2"
+pygments = ">=2.7.2"
+tomli = {version = ">=1", markers = "python_version < \"3.11\""}
+
+[package.extras]
+dev = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "requests", "setuptools", "xmlschema"]
+
 [[package]]
 name = "python-dateutil"
 version = "2.9.0.post0"
@@ -1676,4 +1750,4 @@ ruyaml = ">=0.91.0"
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.9"
-content-hash = "7ab03cbabe9011d7cbf14e3c328258a1977604214d85565a93c5008018cd199c"
+content-hash = "c723b5ad9dbb174e0ebd77e88fb0db45719cd4708f7015b222b7ec36d13947f5"
diff --git a/pyproject.toml b/pyproject.toml
index 3382e87..3b23743 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ black = "^24.2.0"
 isort = "^5.13.2"
 mypy = "^1.9.0"
 pre-commit = "^3.6.2"
-#pytest = "^8.1.1"
+pytest = { version = "^9.0.2", python = ">=3.10" }
 #pytest-cov = "^4.1.0"
 #pandas-stubs = "^2.2.1.240316"
 yamlfix = "^1.16.0"
diff --git a/scripts/smoke_test_cli.py b/scripts/smoke_test_cli.py
new file mode 100644
index 0000000..2c90f0a
--- /dev/null
+++ b/scripts/smoke_test_cli.py
@@ -0,0 +1,10 @@
+# Used to ensure cli will run under Python 3.9
+
+from click.testing import CliRunner
+
+from cwmscli.__main__ import cli
+
+runner = CliRunner()
+result = runner.invoke(cli, ["--help"])
+assert result.exit_code == 0, "CLI failed to run under Python 3.9"
+print("CLI loads and runs under Python 3.9")
diff --git a/tests/README.md b/tests/README.md
new file mode 100644
index 0000000..d91daea
--- /dev/null
+++ b/tests/README.md
@@ -0,0 +1,18 @@
+# Testing
+
+Tests located here will invoke the CliRunner that `click` provides.
+
+https://click.palletsprojects.com/en/stable/testing/
+
+These tests are more for testing the runner itself and ensuring input/output does not change unexpectedly.
+
+Further testing exists within the individual scripts to test the functionality of those scripts regardless of the `click` integrations and/or API targets.
+
+## Goals
+
+- Assign extensive tests per root `cli` command:
+  - Should have each of the sub commands covered
+  - Tests each argument
+  - Have comparisons for expected output both file and stdout
+- Maintain tests as new features are added
+- Ensure PR blocking to main in the event a given test fails
diff --git a/tests/cli/test_all_commands_help.py b/tests/cli/test_all_commands_help.py
new file mode 100644
index 0000000..23e93bb
--- /dev/null
+++ b/tests/cli/test_all_commands_help.py
@@ -0,0 +1,49 @@
+import pytest
+from click.testing import CliRunner
+
+from cwmscli.__main__ import cli
+
+## Expectations
+# - The help commands should run without requiring an import
+# - Help text should include "Usage: <command> <subcommand> --help"
+# - Every command and subcommand should be tested for help text to ensure help renders as expected and no early import errors occur
+
+
+def iter_commands(cmd, path=()):
+    """
+    Recursively walk all commands under a Click Group.
+
+    Yields (path_tuple, command_obj), where path_tuple is like:
+        ("usgs", "ratings", "etc")
+    """
+    commands = getattr(cmd, "commands", {})
+    for name, sub in commands.items():
+        new_path = path + (name,)
+        yield new_path, sub
+        # If the subcommand is itself a Group, recurse
+        if hasattr(sub, "commands"):
+            yield from iter_commands(sub, new_path)
+
+
+@pytest.fixture
+def runner():
+    return CliRunner()
+
+
+def test_root_help(runner):
+    """Top-level CLI should have working help."""
+    result = runner.invoke(cli, ["--help"])
+    assert result.exit_code == 0
+    assert "Usage:" in result.output
+
+
+@pytest.mark.parametrize("path,command", list(iter_commands(cli)))
+def test_every_command_has_help(runner, path, command):
+    """
+    Run through every command and subcommand, ensuring that the help page renders.
+    This ensures that no early import errors occur in any command.
+    """
+    args = list(path) + ["--help"]
+    result = runner.invoke(cli, args)
+    assert result.exit_code == 0, f"Failed on: {' '.join(args)}"
+    assert "Usage:" in result.output