diff --git a/litellm/proxy/guardrails/guardrail_hooks/litellm_content_filter/__init__.py b/litellm/proxy/guardrails/guardrail_hooks/litellm_content_filter/__init__.py
index bbe3ded791d..a41b4fc65e9 100644
--- a/litellm/proxy/guardrails/guardrail_hooks/litellm_content_filter/__init__.py
+++ b/litellm/proxy/guardrails/guardrail_hooks/litellm_content_filter/__init__.py
@@ -48,6 +48,8 @@ def initialize_guardrail(
         end_session_after_n_fails=getattr(litellm_params, "end_session_after_n_fails", None),
         on_violation=getattr(litellm_params, "on_violation", None),
         realtime_violation_message=getattr(litellm_params, "realtime_violation_message", None),
+        keyword_redaction_tag=getattr(litellm_params, "keyword_redaction_tag", None),
+        pattern_redaction_format=getattr(litellm_params, "pattern_redaction_format", None),
     )
 
     litellm.logging_callback_manager.add_litellm_callback(content_filter_guardrail)
diff --git a/tests/test_litellm/proxy/guardrails/guardrail_hooks/content_filter/test_initialize_guardrail.py b/tests/test_litellm/proxy/guardrails/guardrail_hooks/content_filter/test_initialize_guardrail.py
new file mode 100644
index 00000000000..fe5295b2be3
--- /dev/null
+++ b/tests/test_litellm/proxy/guardrails/guardrail_hooks/content_filter/test_initialize_guardrail.py
@@ -0,0 +1,74 @@
+"""Regression for #30008 — keyword_redaction_tag / pattern_redaction_format must be
+propagated from LitellmParams through initialize_guardrail to ContentFilterGuardrail."""
+
+import os
+import sys
+from types import SimpleNamespace
+from unittest.mock import patch
+
+import pytest
+
+sys.path.insert(0, os.path.abspath("../../"))
+
+import litellm
+from litellm.proxy.guardrails.guardrail_hooks.litellm_content_filter import (
+    initialize_guardrail,
+)
+from litellm.proxy.guardrails.guardrail_hooks.litellm_content_filter.content_filter import (
+    ContentFilterGuardrail,
+)
+
+
+def _make_litellm_params(**overrides):
+    """Build a permissive stand-in for LitellmParams — fields are read via getattr."""
+    defaults = dict(
+        patterns=None,
+        blocked_words=None,
+        blocked_words_file=None,
+        mode="pre_call",
+        default_on=False,
+        categories=None,
+        severity_threshold="medium",
+        image_model=None,
+        competitor_intent_config=None,
+        end_session_after_n_fails=None,
+        on_violation=None,
+        realtime_violation_message=None,
+        keyword_redaction_tag=None,
+        pattern_redaction_format=None,
+    )
+    defaults.update(overrides)
+    return SimpleNamespace(**defaults)
+
+
+@pytest.fixture(autouse=True)
+def _quiet_callback_register():
+    """initialize_guardrail registers a callback on success — keep test side-effect-free."""
+    with patch.object(litellm.logging_callback_manager, "add_litellm_callback", lambda _: None):
+        yield
+
+
+def test_initialize_guardrail_propagates_custom_redaction_tags():
+    """Custom keyword_redaction_tag + pattern_redaction_format must reach the filter."""
+    params = _make_litellm_params(
+        keyword_redaction_tag="***REDACTED***",
+        pattern_redaction_format="***{pattern_name}***",
+    )
+    guardrail = {"guardrail_name": "test_filter"}
+
+    filter_obj = initialize_guardrail(litellm_params=params, guardrail=guardrail)
+
+    assert isinstance(filter_obj, ContentFilterGuardrail)
+    assert filter_obj.keyword_redaction_tag == "***REDACTED***"
+    assert filter_obj.pattern_redaction_format == "***{pattern_name}***"
+
+
+def test_initialize_guardrail_defaults_when_redaction_tags_missing():
+    """Omitting the redaction tags falls back to the class defaults (current behavior)."""
+    params = _make_litellm_params()
+    guardrail = {"guardrail_name": "test_filter_defaults"}
+
+    filter_obj = initialize_guardrail(litellm_params=params, guardrail=guardrail)
+
+    assert filter_obj.keyword_redaction_tag == ContentFilterGuardrail.KEYWORD_REDACTION_STR
+    assert filter_obj.pattern_redaction_format == ContentFilterGuardrail.PATTERN_REDACTION_FORMAT