Expose authoritative lifecycle deletion through capability bindings

src/capability-model/validation.ts

@@ -70,6 +70,7 @@ export type CapabilityValidationIssueCode =
   | "invalid-attachment"
   | "invalid-state-binding"
   | "invalid-edge-binding"
+  | "invalid-lifecycle-binding"
   | "invalid-package-binding"
   | "invalid-forwarding-binding"
   | "invalid-dependency-binding"
@@ -1696,6 +1697,24 @@ const validateConformances = (
         );
         continue;
       }
+      if (binding.kind === "lifecycle") {
+        if (
+          binding.primitive !== "delete" ||
+          operationEntry.member.kind !== "operation" ||
+          operation.mode !== "call" ||
+          operation.inputType.kind !== "builtin" ||
+          operation.inputType.name !== "unit" ||
+          operation.outputType.kind !== "builtin" ||
+          operation.outputType.name !== "unit"
+        )
+          issue(
+            issues,
+            "invalid-lifecycle-binding",
+            bindingPath,
+            "Deletion implements an object call from unit to unit",
+          );
+        continue;
+      }
       if (binding.kind === "state") {
         const attachment = findAttachment(indexes, "state", binding.slotId);
         if (!attachment || attachment.attachment.kind !== "state") {
@@ -2324,6 +2343,7 @@ export const resolveOperationPlan = (
       attachment: owned as OwnedAttachment & { attachment: EdgeDefinition },
     };
   }
+  if (binding.kind === "lifecycle") return undefined; // Old runtime has no lifecycle provider.
   const packageRevision = plan.packages.get(binding.packageRevisionId);
   const packageExport = packageRevision?.exports.find(
     (entry): entry is PackageOperationExport | PackageFunctionExport =>
@@ -2469,7 +2489,7 @@ export const computeCapabilityClosure = (
         attachments.add(binding.edgeTypeId);
       } else if (binding.kind === "interface") {
         queued.push({ atomId: root.atomId, interfaceRevisionId: binding.interfaceRevisionId });
-      } else {
+      } else if (binding.kind === "package") {
         packages.add(binding.packageRevisionId);
         includeDependencies(root.atomId, binding.dependencies);
         const packageRevision = plan.packages.get(binding.packageRevisionId);