From e49851e12a0d507cd0d1778f81e7327eb5adba45 Mon Sep 17 00:00:00 2001
From: Claw <matthew@pq.io>
Date: Fri, 6 Mar 2026 01:09:57 +0000
Subject: [PATCH] =?UTF-8?q?fix:=20remove=20local=20browser=20fallback=20?=
 =?UTF-8?q?=E2=80=94=20Kernel=20only,=20fail=20fast=20if=20unavailable?=
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---
 lib/browser.mjs | 50 ++++++++++++-------------------------------------
 1 file changed, 12 insertions(+), 38 deletions(-)

diff --git a/lib/browser.mjs b/lib/browser.mjs
index 7c5c25a..7687bae 100644
--- a/lib/browser.mjs
+++ b/lib/browser.mjs
@@ -1,18 +1,13 @@
 /**
  * browser.mjs — Browser factory
- * Creates Kernel stealth browsers or falls back to local Playwright
+ * Creates Kernel stealth browsers for all operations
  */
-import { LOCAL_USER_AGENT, KERNEL_SDK_PATH, DEFAULT_PLAYWRIGHT_PATH } from './constants.mjs';
+import { KERNEL_SDK_PATH, DEFAULT_PLAYWRIGHT_PATH } from './constants.mjs';
 
-// Use configured playwright path or fall back to npm global
 let _chromium;
 async function getChromium(playwrightPath) {
   if (_chromium) return _chromium;
-  const paths = [
-    playwrightPath,
-    DEFAULT_PLAYWRIGHT_PATH,
-    'playwright'
-  ].filter(Boolean);
+  const paths = [playwrightPath, DEFAULT_PLAYWRIGHT_PATH, 'playwright'].filter(Boolean);
   for (const p of paths) {
     try { const m = await import(p); _chromium = m.chromium; return _chromium; } catch {}
   }
@@ -20,25 +15,12 @@ async function getChromium(playwrightPath) {
 }
 
 export async function createBrowser(settings, profileKey) {
-  const { provider, playwright_path } = settings.browser || {};
   const kernelConfig = settings.kernel || {};
+  const playwrightPath = settings.browser?.playwright_path;
+  const apiKey = process.env.KERNEL_API_KEY || settings.kernel_api_key;
 
-  const pwPath = settings.browser?.playwright_path;
+  if (!apiKey) throw new Error('KERNEL_API_KEY not set');
 
-  if (provider === 'local') {
-    return createLocalBrowser(pwPath);
-  }
-
-  // Default: Kernel
-  try {
-    return await createKernelBrowser(kernelConfig, profileKey, pwPath);
-  } catch (e) {
-    console.warn(`[browser] Kernel failed (${e.message}), falling back to local`);
-    return createLocalBrowser(pwPath);
-  }
-}
-
-async function createKernelBrowser(kernelConfig, profileKey, playwrightPath) {
   let Kernel;
   try {
     const mod = await import(KERNEL_SDK_PATH);
@@ -47,13 +29,13 @@ async function createKernelBrowser(kernelConfig, profileKey, playwrightPath) {
     throw new Error('Kernel SDK not installed — run: npm install @onkernel/sdk');
   }
 
-  if (!process.env.KERNEL_API_KEY) throw new Error('KERNEL_API_KEY not set');
-  const kernel = new Kernel({ apiKey: process.env.KERNEL_API_KEY });
+  const kernel = new Kernel({ apiKey });
 
-  const profileName = kernelConfig.profiles?.[profileKey];
-  if (!profileName) throw new Error(`No Kernel profile configured for "${profileKey}"`);
+  const profileName = profileKey ? kernelConfig.profiles?.[profileKey] : null;
+  if (profileKey && !profileName) throw new Error(`No Kernel profile configured for "${profileKey}"`);
 
-  const opts = { stealth: true, profile: { name: profileName } };
+  const opts = { stealth: true };
+  if (profileName) opts.profile = { name: profileName };
   if (kernelConfig.proxy_id) opts.proxy = { id: kernelConfig.proxy_id };
 
   const kb = await kernel.browsers.create(opts);
@@ -62,13 +44,5 @@ async function createKernelBrowser(kernelConfig, profileKey, playwrightPath) {
   const ctx = browser.contexts()[0] || await browser.newContext();
   const page = ctx.pages()[0] || await ctx.newPage();
 
-  return { browser, page, type: 'kernel' };
-}
-
-async function createLocalBrowser(playwrightPath) {
-  const chromium = await getChromium(playwrightPath);
-  const browser = await chromium.launch({ headless: true });
-  const ctx = await browser.newContext({ userAgent: LOCAL_USER_AGENT });
-  const page = await ctx.newPage();
-  return { browser, page, type: 'local' };
+  return { browser, page, type: 'kernel', kernel, kernelBrowserId: kb.id };
 }