chore: enable extensions by default on cli

Author: nroscino

skills/chrome-devtools-cli/SKILL.md

@@ -125,8 +125,6 @@ chrome-devtools take_snapshot --verbose true --filePath "s.txt" # Take a verbose
 
 ## Extensions
 
-Extensions tools are disabled by default. Enable them with `chrome-devtools start --categoryExtensions=true`.
-
 ```bash
 chrome-devtools list_extensions # Lists all the Chrome extensions installed in the browser
 chrome-devtools install_extension "/path/to/extension" # Installs a Chrome extension from the given path

src/bin/chrome-devtools.ts

@@ -37,7 +37,11 @@ async function start(args: string[], sessionId: string) {
   logDisclaimers(parseArguments(VERSION, combinedArgs));
 }
 
-const defaultArgs = ['--viaCli', '--experimentalStructuredContent'];
+const defaultArgs = [
+  '--viaCli',
+  '--experimentalStructuredContent',
+  '--categoryExtensions',
+];
 
 const startCliOptions = {
   ...cliOptions,

tests/e2e/chrome-devtools-commands.test.ts

@@ -72,24 +72,6 @@ describe('chrome-devtools', () => {
     );
   });
 
-  it('fails to invoke list_extensions when categoryExtensions is disabled (default)', async () => {
-    await runCli(['start'], sessionId);
-
-    const result = await runCli(['list_extensions'], sessionId);
-    assert.strictEqual(result.status, 0);
-
-    assert(
-      result.stdout.includes(
-        'Tool list_extensions is in category Extensions which is currently disabled',
-      ),
-      'error message is unexpected: ' + result.stdout,
-    );
-    assert(
-      result.stdout.includes('chrome-devtools start --categoryExtensions=true'),
-      'restart command suggestion is missing: ' + result.stdout,
-    );
-  });
-
   it('fails to invoke list_network_requests when categoryNetwork is disabled', async () => {
     await runCli(['start', '--categoryNetwork=false'], sessionId);