diff --git a/fish/conf.d/10-env.fish b/fish/conf.d/10-env.fish
index ce23ab5..2f2864e 100644
--- a/fish/conf.d/10-env.fish
+++ b/fish/conf.d/10-env.fish
@@ -17,3 +17,5 @@ set -gx PI_CODING_AGENT_SESSION_DIR $XDG_STATE_HOME/pi/sessions
 if test (hostname) = desktop; and not set -q MISE_ENV
 	set -gx MISE_ENV desktop
 end
+
+set -gx MCP_UI_VIEWER none
diff --git a/pi/settings.macos.json b/pi/settings.macos.json
index 41437fc..15bb076 100644
--- a/pi/settings.macos.json
+++ b/pi/settings.macos.json
@@ -7,7 +7,8 @@
   "defaultModel": "gpt-5.6-sol",
   "enabledModels": [],
   "packages": [
-    "https://tangled.org/spencergilbert.dev/pi-pkg"
+    "https://tangled.org/spencergilbert.dev/pi-pkg",
+    "npm:pi-mcp-adapter"
   ],
   "showCacheMissNotices": true,
   "npmCommand": [