feat: add /auto-fix slash command

Adds the /auto-fix prompt command that helps users configure autoFix settings
(lint/test commands, maxRetries, timeout) in .claude/settings.json.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/commands.ts

@@ -136,6 +136,7 @@ import hooks from './commands/hooks/index.js'
 import files from './commands/files/index.js'
 import branch from './commands/branch/index.js'
 import agents from './commands/agents/index.js'
+import autoFix from './commands/auto-fix.js'
 import plugin from './commands/plugin/index.js'
 import reloadPlugins from './commands/reload-plugins/index.js'
 import rewind from './commands/rewind/index.js'
@@ -263,6 +264,7 @@ const COMMANDS = memoize((): Command[] => [
   addDir,
   advisor,
   agents,
+  autoFix,
   branch,
   btw,
   chrome,

src/commands/auto-fix.ts

@@ -0,0 +1,25 @@
+import type { Command } from '../types/command.js'
+
+const command: Command = {
+  name: 'auto-fix',
+  description: 'Configure auto-fix: run lint/test after AI edits',
+  isEnabled: () => true,
+  type: 'prompt',
+  progressMessage: 'Configuring auto-fix...',
+  contentLength: 0,
+  source: 'builtin',
+  async getPromptForCommand() {
+    return [
+      {
+        type: 'text',
+        text:
+          'The user wants to configure auto-fix settings. Auto-fix automatically runs lint and test commands after AI file edits, feeding errors back for self-repair.\n\n' +
+          'Current settings location: `.claude/settings.json` or `.claude/settings.local.json`\n\n' +
+          'Example configuration:\n```json\n{\n  "autoFix": {\n    "enabled": true,\n    "lint": "eslint . --fix",\n    "test": "bun test",\n    "maxRetries": 3,\n    "timeout": 30000\n  }\n}\n```\n\n' +
+          'Ask the user what lint and test commands they use, then help them set up the configuration.',
+      },
+    ]
+  },
+}
+
+export default command