Make local graph execution optional across composed packages

src/capability-model/execution.ts

@@ -25,7 +25,6 @@ export function validateExecutionContracts(workspace: WorkspaceRevision): Capabi
     requested: ExecutionContract | undefined,
     provided: ExecutionContract | undefined,
     path: string,
-    requireTargets = true,
   ) => {
     if (!requested || requested.kind === "remote") return;
     if (!provided || provided.kind === "remote") {
@@ -34,9 +33,6 @@ export function validateExecutionContracts(workspace: WorkspaceRevision): Capabi
     }
     if (requested.kind === "snapshot" && provided.kind !== "snapshot")
       fail(path, "Snapshot execution cannot perform a transaction");
-    if (requireTargets)
-      for (const target of requested.targets ?? [])
-        if (!provided.targets?.includes(target)) fail(path, `Dependency does not provide execution target ${target}`);
   };
   for (const revision of workspace.interfaceImports)
     for (const member of revision.template?.members ?? revision.members) {
@@ -84,10 +80,7 @@ export function validateExecutionContracts(workspace: WorkspaceRevision): Capabi
           if (entry.execution && entry.execution.kind !== "remote") {
             if (!selected) fail(portPath, "Portable interface ports must select their required operations");
             for (const id of selected ?? [])
-              // Package targets describe available code. Required public target
-              // guarantees are checked over the installed operation closure;
-              // an optional implementation target must not strengthen a dependency.
-              if (contract) supports(entry.execution, operations(id, contract)?.execution, portPath, false);
+              if (contract) supports(entry.execution, operations(id, contract)?.execution, portPath);
           }
         }
         if (!entry.execution || entry.execution.kind === "remote") continue;