Gateway: per-watch notification switches, model list for new threads, and Ask before acting

gateway/src/views.ts

@@ -5,6 +5,7 @@
 
 import { threadPhase, type Phase } from "./awareness.ts";
 import type {
+  AgentProvider,
   Feed,
   FeedItem,
   HostStatusDetail,
@@ -360,5 +361,28 @@ export async function buildThreadDetail(
     item: feedItem(host, thread, child?.phase ?? own, summary, via),
     messages: summary.messages,
     canStop: thread.activeRunId !== null,
+    askFirst: thread.runtimeMode === ASK_FIRST,
   };
 }
+
+/** T3's runtime mode that asks before each action. */
+export const ASK_FIRST = "approval-required";
+
+/** The providers on a host that can start a thread now, leaving out legacy models. */
+export function agentProviders(host: T3Host): AgentProvider[] {
+  return (host.serverConfig?.providers ?? [])
+    .filter(
+      (provider) =>
+        provider.enabled &&
+        provider.installed &&
+        provider.availability !== "unavailable" &&
+        (provider.status === "ready" || provider.status === "warning"),
+    )
+    .map((provider) => ({
+      instanceId: provider.instanceId,
+      name: provider.displayName ?? provider.driver,
+      canAskFirst: provider.supportedRuntimeModes?.includes(ASK_FIRST) ?? true,
+      models: provider.models.filter((model) => !model.isLegacy).map((model) => ({ slug: model.slug, name: model.name })),
+    }))
+    .filter((provider) => provider.models.length > 0);
+}