diff --git a/tests/unit/rules-command.test.js b/tests/unit/rules-command.test.js
new file mode 100644
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+++ b/tests/unit/rules-command.test.js
@@ -0,0 +1,101 @@
+// tests/unit/rules-command.test.js
+
+import fs from 'fs';
+import path from 'path';
+import { spawnSync } from 'child_process';
+import { fileURLToPath } from 'url';
+import { dirname } from 'path';
+import * as windsurfProfile from '../../scripts/profiles/windsurf.js';
+import { convertAllRulesToBrandRules, removeBrandRules } from '../../scripts/modules/rule-transformer.js';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const projectDir = path.join(__dirname, '../tmp/rules-test');
+const assetsRulesDir = path.join(projectDir, 'assets', 'rules');
+
+function setupCursorRules() {
+  if (!fs.existsSync(assetsRulesDir)) {
+    fs.mkdirSync(assetsRulesDir, { recursive: true });
+  }
+  fs.writeFileSync(
+    path.join(assetsRulesDir, 'sample-rule.mdc'),
+    `---\ndescription: Example Cursor Rule\nglobs: src/**/*.js\nalwaysApply: true\n---\n- **Do this**\n  - Example line\n`
+  );
+  // Copy the real windsurf profile to the test temp directory for CLI
+  const testProfilesDir = path.join(projectDir, 'scripts', 'profiles');
+  if (!fs.existsSync(testProfilesDir)) {
+    fs.mkdirSync(testProfilesDir, { recursive: true });
+  }
+  const realProfilePath = path.join(__dirname, '../../scripts/profiles/windsurf.js');
+  const testProfilePath = path.join(testProfilesDir, 'windsurf.js');
+  fs.copyFileSync(realProfilePath, testProfilePath);
+}
+
+describe('rules CLI command', () => {
+  beforeEach(() => {
+    fs.rmSync(projectDir, { recursive: true, force: true });
+    setupCursorRules();
+  });
+
+  afterEach(() => {
+    fs.rmSync(projectDir, { recursive: true, force: true });
+  });
+
+  describe('Direct module usage', () => {
+    it('should convert all Cursor rules to windsurf brand rules', () => {
+      // Act
+      const result = convertAllRulesToBrandRules(projectDir, windsurfProfile);
+      // Assert
+      const brandRulePath = path.join(projectDir, windsurfProfile.rulesDir, 'sample-rule.mdc');
+      expect(result.success).toBeGreaterThan(0);
+      expect(fs.existsSync(brandRulePath)).toBe(true);
+      const content = fs.readFileSync(brandRulePath, 'utf8');
+      // Check for a windsurf-specific transformation (adjust as needed)
+      expect(content.toLowerCase()).toContain('windsurf');
+    });
+
+    it('should remove windsurf brand rules', () => {
+      convertAllRulesToBrandRules(projectDir, windsurfProfile);
+      const removed = removeBrandRules(projectDir, windsurfProfile);
+      expect(removed).toBe(true);
+      expect(fs.existsSync(path.join(projectDir, windsurfProfile.rulesDir))).toBe(false);
+    });
+  });
+
+  describe('CLI integration', () => {
+    const cliPath = path.join(__dirname, '../../bin/task-master.js');
+
+    it('should add windsurf rules via CLI', () => {
+      const result = spawnSync('node', [cliPath, 'rules', 'add', 'windsurf'], {
+        cwd: projectDir,
+        encoding: 'utf8',
+      });
+      console.log('CLI STDOUT:', result.stdout);
+      console.log('CLI STDERR:', result.stderr);
+      expect(result.status).toBe(0);
+      const brandRulePath = path.join(projectDir, windsurfProfile.rulesDir, 'sample-rule.mdc');
+      expect(fs.existsSync(brandRulePath)).toBe(true);
+    });
+
+    it('should remove windsurf rules via CLI', () => {
+      // First add, then remove
+      spawnSync('node', [cliPath, 'rules', 'add', 'windsurf'], { cwd: projectDir, encoding: 'utf8' });
+      const result = spawnSync('node', [cliPath, 'rules', 'remove', 'windsurf'], {
+        cwd: projectDir,
+        encoding: 'utf8',
+      });
+      expect(result.status).toBe(0);
+      expect(fs.existsSync(path.join(projectDir, windsurfProfile.rulesDir))).toBe(false);
+    });
+
+    it('should error if brand is missing', () => {
+      const result = spawnSync('node', [cliPath, 'rules', 'add'], {
+        cwd: projectDir,
+        encoding: 'utf8',
+      });
+      expect(result.status).not.toBe(0);
+      expect(result.stderr).toContain('Please specify at least one brand');
+    });
+  });
+});