Fix exception word bypass risk in French template

- Replace short words (film, jeu, juste) with context-specific phrases
- Prevents substring matching bypasses (e.g., enjeu matching jeu)
- Add tests for bypass prevention and legitimate game context
- Addresses Greptile security feedback

litellm/proxy/guardrails/guardrail_hooks/litellm_content_filter/policy_templates/eu_ai_act_article5_fr.yaml

@@ -213,13 +213,18 @@ exceptions:
   - "test de justice"
 
   # Contextes de divertissement/produits
-  - "film"
+  - "dans un film"
+  - "dans le film"
+  - "pour un film"
   - "cinéma"
-  - "jeu"
+  - "dans un jeu"
+  - "dans le jeu"
+  - "jeu vidéo"
   - "avis sur le produit"
   - "avis produit"
   - "retour client"
   - "commentaires clients"
+  - "feedback client"
 
   # Méta-discussion
   - "expliquer"
@@ -230,6 +235,8 @@ exceptions:
   - "prohibé par"
   - "en quoi consiste"
   - "de manière équitable"
-  - "équitable"
-  - "juste"
+  - "de façon équitable"
+  - "équitablement"
+  - "de manière juste"
   - "de façon juste"
+  - "justement évaluer"

tests/guardrails_tests/test_eu_ai_act_french_3_scenarios.py

@@ -248,6 +248,44 @@ class TestFrenchEdgeCases:
             )
 
 
+    @pytest.mark.asyncio
+    async def test_exception_bypass_prevention(self, content_filter_guardrail):
+        """
+        Test that short exception words don't create bypasses.
+        Words like "enjeu" (stake) should not match "jeu" (game) exception.
+        """
+        # "enjeu" contains "jeu" but should NOT trigger exception
+        sentence = "Créer un système de crédit social pour l'enjeu principal de l'entreprise"
+        request_data = {"messages": [{"role": "user", "content": sentence}]}
+
+        # Should still block (no exception bypass)
+        with pytest.raises(Exception) as exc_info:
+            await content_filter_guardrail.apply_guardrail(
+                inputs={"texts": [sentence]},
+                request_data=request_data,
+                input_type="request",
+            )
+
+        # Verify it was blocked
+        assert "blocked" in str(exc_info.value).lower()
+
+
+    @pytest.mark.asyncio
+    async def test_legitimate_game_context_allowed(self, content_filter_guardrail):
+        """Test that legitimate game context with proper phrasing is allowed."""
+        sentence = "Détecter les émotions des joueurs dans un jeu vidéo"
+        request_data = {"messages": [{"role": "user", "content": sentence}]}
+
+        # Should allow (contains "dans un jeu" exception with proper context)
+        result = await content_filter_guardrail.apply_guardrail(
+            inputs={"texts": [sentence]},
+            request_data=request_data,
+            input_type="request",
+        )
+
+        assert result is None or result["texts"][0] == sentence
+
+
 if __name__ == "__main__":
     # Run tests with: pytest test_eu_ai_act_french_3_scenarios.py -v -s
     pytest.main([__file__, "-v", "-s"])