Suppress native installer warning when cc is installed by npm

CHANGELOG.md

@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add CLI spinners (#470) - @bl-ue
 - Add support for dangerously bypassing permissions in sudo with new setting and patch (#478) - @brrock
 - Add `unpack`, `repack`, and `adhoc-patch --string/regex/script` subcommands (#481)
+- Add a patch to suppress the native installer warning (#483) - @brrock
 
 ## [v3.4.0](https://github.com/Piebald-AI/tweakcc/releases/tag/v3.4.0) - 2026-01-18
 

README.md

@@ -117,6 +117,7 @@ $ pnpm dlx tweakcc
   - [Statusline update customization](#feature-statusline-update-customization)
   - [AGENTS.md support (with video)](#feature-agentsmd-support)
   - [Auto-accept plan mode](#feature-auto-accept-plan-mode)
+  - [Suppress native installer warning](`#feature-suppress-native-installer-warning`)
   - _Missing documentation for above features coming soon_
 - [Configuration directory](#configuration-directory)
 - [Building from source](#building-from-source)
@@ -616,6 +617,24 @@ When Claude finishes writing a plan and calls `ExitPlanMode`, you're normally sh
 }
 ```
 
+## Feature: Suppress native installer warning
+
+When Claude Code detects that you've switched from npm to the native installer, it shows a warning message at startup suggesting you run `claude install` or visit the documentation for more options. This patch suppresses that warning.
+
+**Via the UI:** Run `npx tweakcc`, go to **Misc**, and toggle **Suppress native installer warning**.
+
+**Via `config.json`:**
+
+```json
+{
+  "settings": {
+    "misc": {
+      "suppressNativeInstallerWarning": true
+    }
+  }
+}
+```
+
 ## Configuration directory
 
 tweakcc stores its configuration files in one of the following locations, in order of priority:

src/defaultSettings.ts

@@ -710,6 +710,7 @@ export const DEFAULT_SETTINGS: Settings = {
     tokenCountRounding: null,
     autoAcceptPlanMode: false,
     allowBypassPermissionsInSudo: false,
+    suppressNativeInstallerWarning: false,
   },
   toolsets: [],
   defaultToolset: null,

src/patches/index.ts

@@ -68,6 +68,7 @@ import { writeTokenCountRounding } from './tokenCountRounding';
 import { writeAgentsMd } from './agentsMd';
 import { writeAutoAcceptPlanMode } from './autoAcceptPlanMode';
 import { writeAllowBypassPermsInSudo } from './allowBypassPermsInSudo';
+import { writeSuppressNativeInstallerWarning } from './suppressNativeInstallerWarning';
 import {
   restoreNativeBinaryFromBackup,
   restoreClijsFromBackup,
@@ -340,6 +341,12 @@ const PATCH_DEFINITIONS = [
     description:
       'Allow bypassing permissions with --dangerously-skip-permissions even when running with root/sudo privileges',
   },
+  {
+    id: 'suppress-native-installer-warning',
+    name: 'Suppress native installer warning',
+    group: PatchGroup.MISC_CONFIGURABLE,
+    description: 'Suppress the native installer warning message at startup',
+  },
   // Features
   {
     id: 'swarm-mode',
@@ -758,6 +765,10 @@ export const applyCustomization = async (
       fn: c => writeAllowBypassPermsInSudo(c),
       condition: !!config.settings.misc?.allowBypassPermissionsInSudo,
     },
+    'suppress-native-installer-warning': {
+      fn: c => writeSuppressNativeInstallerWarning(c),
+      condition: !!config.settings.misc?.suppressNativeInstallerWarning,
+    },
     // Features
     'swarm-mode': {
       fn: c => writeSwarmMode(c),

src/patches/suppressNativeInstallerWarning.ts

@@ -0,0 +1,26 @@
+import { showDiff } from './index';
+
+export const writeSuppressNativeInstallerWarning = (
+  file: string
+): string | null => {
+  const pattern =
+    /Claude Code has switched from npm to native installer\. Run `claude install` or see https:\/\/docs\.anthropic\.com\/en\/docs\/claude-code\/getting-started for more options\./;
+
+  const match = file.match(pattern);
+
+  if (!match || match.index === undefined) {
+    console.warn(
+      'patch: suppressNativeInstallerWarning: failed to find pattern'
+    );
+    return null;
+  }
+
+  const startIndex = match.index;
+  const endIndex = startIndex + match[0].length;
+
+  const newFile = file.slice(0, startIndex) + file.slice(endIndex);
+
+  showDiff(file, newFile, '', startIndex, endIndex);
+
+  return newFile;
+};

src/types.ts

@@ -128,6 +128,7 @@ export interface MiscConfig {
   tokenCountRounding: number | null;
   autoAcceptPlanMode: boolean;
   allowBypassPermissionsInSudo: boolean | null;
+  suppressNativeInstallerWarning: boolean;
 }
 
 export interface InputPatternHighlighter {

src/ui/components/MiscView.tsx

@@ -75,6 +75,7 @@ export function MiscView({ onSubmit }: MiscViewProps) {
     tokenCountRounding: null as number | null,
     autoAcceptPlanMode: false,
     allowBypassPermissionsInSudo: false,
+    suppressNativeInstallerWarning: false,
   };
 
   const ensureMisc = () => {
@@ -530,6 +531,20 @@ export function MiscView({ onSubmit }: MiscViewProps) {
           });
         },
       },
+      {
+        id: 'suppressNativeInstallerWarning',
+        title: 'Suppress native installer warning',
+        description:
+          'Suppress the native installer warning message at startup.',
+        getValue: () => settings.misc?.suppressNativeInstallerWarning ?? false,
+        toggle: () => {
+          updateSettings(settings => {
+            ensureMisc();
+            settings.misc!.suppressNativeInstallerWarning =
+              !settings.misc!.suppressNativeInstallerWarning;
+          });
+        },
+      },
     ],
     [settings, updateSettings]
   );