diff --git a/.github/workflows/test-linting.yml b/.github/workflows/test-linting.yml
index c77d4b2ee96..9de9662ec6c 100644
--- a/.github/workflows/test-linting.yml
+++ b/.github/workflows/test-linting.yml
@@ -180,6 +180,18 @@ jobs:
             echo "No changed tests/e2e Python files; skipping."
           fi
 
+      - name: Run the claude_code harness unit tests
+        if: steps.changes.outputs.decision != 'skip'
+        run: |
+          if ! git diff --name-only --diff-filter=ACMRD "$GATE_BASE_SHA" HEAD -- ':(glob)tests/e2e/claude_code/**/*.py' ':(glob)tests/e2e/*.py' tests/e2e/claude_code/cron_vm/install_claude_code.sh pyproject.toml uv.lock .github/workflows/test-linting.yml | grep -q .; then
+            echo "No changed claude_code harness files; skipping."
+            exit 0
+          fi
+          retry() { "$@" || { sleep 15; "$@"; } || { sleep 30; "$@"; }; }
+          CLAUDE_VERSION="$(retry uv run --no-sync python tests/e2e/claude_code/pr_gate_version_resolver.py)"
+          tests/e2e/claude_code/cron_vm/install_claude_code.sh "$CLAUDE_VERSION" "$RUNNER_TEMP/claude-cli"
+          PATH="$RUNNER_TEMP/claude-cli:$PATH" uv run --no-sync pytest -q --noconftest -o addopts= -o pythonpath=tests/e2e -p no:rerunfailures tests/e2e/claude_code/_*_unit_tests
+
       - name: Check for circular imports
         if: steps.changes.outputs.decision != 'skip'
         run: |
diff --git a/tests/test_litellm/test_lint_workflow_diff_gates.py b/tests/test_litellm/test_lint_workflow_diff_gates.py
index 62e67cdaaab..23cb8aa1a0b 100644
--- a/tests/test_litellm/test_lint_workflow_diff_gates.py
+++ b/tests/test_litellm/test_lint_workflow_diff_gates.py
@@ -21,6 +21,10 @@ def _scoped_root(pathspec: str) -> str:
     return re.sub(r"^:\([^)]*\)", "", pathspec).split("*", 1)[0]
 
 
+def _gate_rooted_at(root: str) -> tuple[str, ...]:
+    return next(gate for gate in GATES if _scoped_root(gate[0]) == root)
+
+
 def _changed_files_selected_by(tmp_path: Path, pathspecs: tuple[str, ...], files: tuple[str, ...]) -> frozenset[str]:
     _git(tmp_path, "init", "-q", "-b", "main")
     _git(tmp_path, "config", "user.email", "t@t")
@@ -37,8 +41,10 @@ def _changed_files_selected_by(tmp_path: Path, pathspecs: tuple[str, ...], files
     )
 
 
-def test_workflow_still_carries_the_ruff_format_and_e2e_basedpyright_diff_gates() -> None:
-    assert frozenset(_scoped_root(gate[0]) for gate in GATES) == frozenset({"litellm/", "tests/e2e/"})
+def test_workflow_still_carries_the_ruff_format_e2e_basedpyright_and_claude_code_harness_diff_gates() -> None:
+    assert frozenset(_scoped_root(gate[0]) for gate in GATES) == frozenset(
+        {"litellm/", "tests/e2e/", "tests/e2e/claude_code/"}
+    )
 
 
 @pytest.mark.parametrize("pathspecs", GATES, ids=" ".join)
@@ -52,3 +58,21 @@ def test_diff_gate_selects_top_level_and_nested_python_files_only(tmp_path: Path
         (top_level, nested, f"{root}notes.md", "elsewhere/top_level_module.py", "elsewhere/pkg/nested_module.py"),
     )
     assert selected == frozenset({top_level, nested})
+
+
+@pytest.mark.parametrize(
+    "trigger",
+    (
+        "tests/e2e/claude_code/cron_vm/install_claude_code.sh",
+        "pyproject.toml",
+        "uv.lock",
+        ".github/workflows/test-linting.yml",
+    ),
+)
+def test_claude_code_gate_also_fires_on_its_installer_dependency_manifests_and_workflow(
+    tmp_path: Path, trigger: str
+) -> None:
+    selected = _changed_files_selected_by(
+        tmp_path, _gate_rooted_at("tests/e2e/claude_code/"), (trigger, "elsewhere/pyproject.toml", "tests/e2e/notes.md")
+    )
+    assert selected == frozenset({trigger})