fix: preserve strict tool schema property names (#6628)

lib/crewai-files/pyproject.toml

@@ -9,7 +9,7 @@ authors = [
 requires-python = ">=3.10, <3.14"
 dependencies = [
     "Pillow~=12.3.0",
-    "pypdf~=6.13.3",
+    "pypdf~=6.14.2",
     "python-magic>=0.4.27",
     "aiocache~=0.12.3",
     "aiofiles~=24.1.0",
@@ -19,8 +19,8 @@ dependencies = [
 
 [tool.uv]
 exclude-newer = "3 days"
-# pypdf 6.13.3 is a security fix newer than the global supply-chain cutoff.
-exclude-newer-package = { pypdf = "2026-06-18T00:00:00Z" }
+# pypdf 6.14.2 is a security fix newer than the global supply-chain cutoff.
+exclude-newer-package = { pypdf = "2026-06-24T00:00:00Z" }
 
 [build-system]
 requires = ["hatchling"]

lib/crewai/src/crewai/utilities/pydantic_schema_utils.py

@@ -549,7 +549,13 @@ _CLAUDE_STRICT_UNSUPPORTED: Final[tuple[str, ...]] = (
 def _strip_keys_recursive(
     d: Any, keys: tuple[str, ...], _seen: set[int] | None = None
 ) -> Any:
-    """Recursively delete a fixed set of keys from a schema."""
+    """Recursively delete schema metadata keys without deleting property names.
+
+    JSON Schema stores fields under a ``properties`` map. A user/tool argument can
+    legitimately be named ``title``, ``default``, or another metadata key. Those
+    entries must stay in the map; only metadata inside the schema nodes should be
+    stripped.
+    """
     if _seen is None:
         _seen = set()
     if isinstance(d, dict):
@@ -558,8 +564,12 @@ def _strip_keys_recursive(
         _seen.add(id(d))
         for key in keys:
             d.pop(key, None)
-        for v in d.values():
-            _strip_keys_recursive(v, keys, _seen)
+        for key, value in d.items():
+            if key == "properties" and isinstance(value, dict):
+                for property_schema in value.values():
+                    _strip_keys_recursive(property_schema, keys, _seen)
+            else:
+                _strip_keys_recursive(value, keys, _seen)
     elif isinstance(d, list):
         if id(d) in _seen:
             return d

lib/crewai/tests/utilities/test_pydantic_schema_utils.py

@@ -933,7 +933,49 @@ class TestResolveRefsRecursive:
         assert resolved["properties"]["x"]["type"] == "integer"
 
 
-class TestSanitizeRecursiveSchemas:
+class TestSanitizeStrictSchemas:
+    def test_openai_strict_preserves_property_named_title(self) -> None:
+        from crewai.utilities.pydantic_schema_utils import sanitize_tool_params_for_openai_strict
+
+        schema = {
+            "type": "object",
+            "properties": {
+                "title": {"title": "Title", "type": "string"},
+                "url": {"title": "Url", "type": "string"},
+            },
+            "required": ["title", "url"],
+        }
+
+        san = sanitize_tool_params_for_openai_strict(deepcopy(schema))
+
+        assert "title" in san["properties"]
+        assert set(san["required"]) == set(san["properties"].keys())
+        assert "title" not in san["properties"]["title"]
+
+    def test_openai_strict_preserves_nested_property_named_title(self) -> None:
+        from crewai.utilities.pydantic_schema_utils import sanitize_tool_params_for_openai_strict
+
+        schema = {
+            "type": "object",
+            "properties": {
+                "payload": {
+                    "type": "object",
+                    "properties": {
+                        "title": {"title": "Nested Title", "type": "string"},
+                    },
+                    "required": ["title"],
+                },
+            },
+            "required": ["payload"],
+        }
+
+        san = sanitize_tool_params_for_openai_strict(deepcopy(schema))
+        payload = san["properties"]["payload"]
+
+        assert "title" in payload["properties"]
+        assert payload["required"] == ["title"]
+        assert "title" not in payload["properties"]["title"]
+
     def test_anthropic_strict_preserves_recursive_type(self) -> None:
         from crewai.utilities.pydantic_schema_utils import sanitize_tool_params_for_anthropic_strict