diff --git a/hub/deploy/NEW_SILO_RUNBOOK.md b/hub/deploy/NEW_SILO_RUNBOOK.md
index defa327..d18cf7e 100644
--- a/hub/deploy/NEW_SILO_RUNBOOK.md
+++ b/hub/deploy/NEW_SILO_RUNBOOK.md
@@ -41,7 +41,9 @@ Everything else is platform-managed or derived: instance/Organization id,
 server, SSH settings, release, resource ceilings, database coordinates and
 generated password, domain, port, workspace, provider/base URL, model/role,
 curated skills, concurrency, request/file limits and the managed Mihomo proxy
-environment.
+environment. `NODE_USE_ENV_PROXY=1` is required on Node.js 24 so Hub's built-in
+`fetch` actually uses that proxy; merely setting `HTTP_PROXY`/`HTTPS_PROXY` is
+not sufficient.
 
 The Feishu app is scoped to this Silo. OAuth users authenticated by that app are
 automatically admitted to this Organization; OWNER remains the initial
diff --git a/hub/deploy/render_new_silo_bundle.mjs b/hub/deploy/render_new_silo_bundle.mjs
index 68fbbcb..d1ae569 100755
--- a/hub/deploy/render_new_silo_bundle.mjs
+++ b/hub/deploy/render_new_silo_bundle.mjs
@@ -117,6 +117,8 @@ const platformEnv = [
   envLine("HTTPS_PROXY", "http://127.0.0.1:7890"),
   envLine("ALL_PROXY", "socks5h://127.0.0.1:7890"),
   envLine("NO_PROXY", "127.0.0.1,localhost,::1"),
+  envLine("NODE_USE_ENV_PROXY", "1"),
+  envLine("ANTHROPIC_DEFAULT_SONNET_MODEL", "anthropic/claude-sonnet-5"),
   envLine("CPH_SANDBOX_EXTRA_DENY_READ", `${envPath}:${keyringPath}`),
   "",
 ].join("\n");
diff --git a/hub/package-lock.json b/hub/package-lock.json
index 781cc2c..0b0848c 100644
--- a/hub/package-lock.json
+++ b/hub/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@paradigm/hub",
-  "version": "0.0.14",
+  "version": "0.0.20",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@paradigm/hub",
-      "version": "0.0.14",
+      "version": "0.0.20",
       "dependencies": {
         "@anthropic-ai/claude-agent-sdk": "^0.3.202",
         "@fastify/cookie": "^11.0.2",
diff --git a/hub/package.json b/hub/package.json
index f3073fa..f2f6394 100644
--- a/hub/package.json
+++ b/hub/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@paradigm/hub",
-  "version": "0.0.14",
+  "version": "0.0.20",
   "private": true,
   "type": "module",
   "engines": {