Protocol types for 2026-07-28: superset monolith, committed per-version packages, and wire-method maps (#2849)

tests/interaction/_requirements.py

@@ -1338,7 +1338,10 @@ REQUIREMENTS: dict[str, Requirement] = {
             note=(
                 "ServerSession.elicit_form forwards an arbitrary dict[str, Any] schema unchanged; no shape "
                 "validation at the low-level session layer (the high-level Context.elicit / "
-                "elicit_with_validation helper enforces primitive-only fields before generating the schema)."
+                "elicit_with_validation helper enforces primitive-only fields before generating the schema). "
+                "ClientSession likewise does not enforce it: the inbound surface gate is relaxed for "
+                "requestedSchema.properties so older servers that emit anyOf for Optional fields still reach "
+                "the elicitation callback."
             ),
         ),
     ),

tests/interaction/lowlevel/test_elicitation.py

@@ -415,6 +415,7 @@ async def test_elicit_form_schema_with_every_primitive_and_enum_type_reaches_the
             "subscribe": {"type": "boolean", "default": False},
             "tier": {"type": "string", "enum": ["free", "pro", "team"]},
             "region": {
+                "type": "string",
                 "oneOf": [
                     {"const": "eu", "title": "Europe"},
                     {"const": "na", "title": "North America"},
@@ -459,7 +460,8 @@ async def test_elicit_form_with_a_nested_schema_is_forwarded_unchanged(connect:
 
     The spec restricts form-mode requested schemas to flat objects with primitive-typed properties;
     this test pins that the SDK does not enforce that restriction on either side (see the
-    divergence on the requirement).
+    divergence on the requirement). The inbound surface gate is deliberately relaxed here so older
+    servers that emit `anyOf` for `Optional` form fields still reach the elicitation callback.
     """
     schema: ElicitRequestedSchema = {
         "type": "object",

tests/interaction/lowlevel/test_resources.py

@@ -81,7 +81,9 @@ async def test_list_resources_returns_registered_resources(connect: Connect) ->
                     description="The project's front page.",
                     mime_type="text/markdown",
                     size=1024,
-                    annotations=Annotations(audience=["user", "assistant"], priority=0.8),
+                    annotations=Annotations(
+                        audience=["user", "assistant"], priority=0.8, last_modified="2025-01-01T00:00:00Z"
+                    ),
                     icons=[Icon(src="https://example.com/readme.png", mime_type="image/png", sizes=["48x48"])],
                 ),
             ]