fix(claude-code): allow dot-prefixed segments in git-subdir paths

litellm/proxy/anthropic_endpoints/claude_code_endpoints/claude_code_marketplace.py

@@ -126,10 +126,12 @@ async def get_marketplace():
 
 
 # Allowlist for git-subdir paths: one or more segments separated by '/'.
-# Each segment must start with an alphanumeric character and contain only
-# alphanumeric characters, dots, hyphens, and underscores.
-# This implicitly blocks '..', leading '/', backslashes, and percent-encoded sequences.
-_VALID_GIT_SUBDIR_PATH_RE = re.compile(r"^[a-zA-Z0-9][a-zA-Z0-9._-]*(/[a-zA-Z0-9][a-zA-Z0-9._-]*)*$")
+# Each segment contains only alphanumeric characters, dots, hyphens, and
+# underscores, and may start with a dot (e.g. '.claude/skills/my-skill').
+# The negative lookahead rejects the '.' and '..' segments so leading '/',
+# backslashes, percent-encoded sequences, and path traversal are still blocked.
+_GIT_SUBDIR_SEGMENT = r"(?!\.{1,2}(?:/|$))[a-zA-Z0-9._-]+"
+_VALID_GIT_SUBDIR_PATH_RE = re.compile(rf"^{_GIT_SUBDIR_SEGMENT}(?:/{_GIT_SUBDIR_SEGMENT})*$")
 
 
 def _validate_plugin_source(source: Dict[str, Any]) -> None:

tests/test_litellm/proxy/anthropic_endpoints/test_claude_code_marketplace.py

@@ -170,6 +170,33 @@ async def test_register_plugin_git_subdir_empty_path():
     assert "path" in exc_info.value.detail["error"]
 
 
+@pytest.mark.asyncio
+@pytest.mark.parametrize(
+    "path",
+    [
+        ".claude/skills/my-skill",
+        ".github/workflows",
+        ".config",
+        "plugins/.hidden/my-plugin",
+    ],
+)
+async def test_register_plugin_git_subdir_dot_prefixed_path(path):
+    """git-subdir paths with dot-prefixed segments (e.g. .claude/) register successfully."""
+    request = RegisterPluginRequest(
+        name="dot-prefixed-plugin",
+        source={
+            "source": "git-subdir",
+            "url": "https://github.com/org/monorepo.git",
+            "path": path,
+        },
+    )
+
+    response = await register_plugin(request=request, user_api_key_dict=_USER)
+
+    assert response["status"] == "success"
+    assert response["plugin"]["source"]["path"] == path
+
+
 @pytest.mark.asyncio
 async def test_register_plugin_git_subdir_path_traversal():
     """git-subdir with path traversal segments raises HTTP 400."""
@@ -181,6 +208,11 @@ async def test_register_plugin_git_subdir_path_traversal():
         "plugins/%2e%2e/secrets",  # percent-encoded traversal
         "plugins/%2E%2E/secrets",  # uppercase percent-encoded traversal
         "plugins/%252e%252e/secrets",  # double-encoded traversal
+        "..",  # bare parent segment
+        ".",  # bare current-dir segment
+        "plugins/..",  # trailing parent traversal
+        ".claude/../secrets",  # dot-prefixed segment followed by traversal
+        "plugins/./secrets",  # embedded current-dir segment
     ]:
         request = RegisterPluginRequest(
             name="bad-plugin",