context loading, path resolution, form state, dynamic rules, and provider-neutral assessment runner/cache boundary

tests/test_builtin_extension_catalog.py

@@ -14,6 +14,9 @@ def test_builtin_extension_registry_lists_query_processors_and_backend():
     assert "processor.include" in ids
     assert "backend.local-sqlite" in ids
     assert "workflow.markdown-dataflow" in ids
+    assert "runtime.context" in ids
+    assert "runtime.form-state" in ids
+    assert "runtime.assessment" in ids
 
 
 def test_builtin_processor_descriptors_capture_safety_and_provenance():
@@ -64,3 +67,17 @@ def test_builtin_workflow_descriptor_exposes_cli_and_safety():
         "mkt workflow plan",
         "mkt workflow run",
     ]
+
+
+def test_builtin_runtime_descriptors_expose_boundaries():
+    registry = builtin_extension_registry()
+
+    context = registry.get("runtime.context")
+    form_state = registry.get("runtime.form-state")
+    assessment = registry.get("runtime.assessment")
+
+    assert context.safety["reads_files"] is True
+    assert "mkt contract check --context" in context.cli["commands"]
+    assert {capability.id for capability in form_state.capabilities} >= {"forms", "rules"}
+    assert assessment.kind == "assessment-runner"
+    assert assessment.safety["provider_calls"] == "adapter-only"