diff --git a/.changeset/gold-tigers-tap.md b/.changeset/gold-tigers-tap.md
new file mode 100644
index 00000000..e3f1d55b
--- /dev/null
+++ b/.changeset/gold-tigers-tap.md
@@ -0,0 +1,9 @@
+---
+"task-master-ai": minor
+---
+
+Add auto-detection for IDE profiles in rules command
+
+- `tm rules add` now opens interactive setup with detected IDEs pre-selected
+- `tm rules add -y` auto-detects and installs rules without prompting
+- Detects 13 IDEs: Cursor, Claude Code, Windsurf, VS Code, Roo, Cline, Kiro, Zed, Kilo, Trae, Gemini, OpenCode, Codex
diff --git a/package-lock.json b/package-lock.json
index 12996151..7e146568 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
 	"name": "task-master-ai",
-	"version": "0.38.0",
+	"version": "0.39.0-rc.0",
 	"lockfileVersion": 3,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "task-master-ai",
-			"version": "0.38.0",
+			"version": "0.39.0-rc.0",
 			"license": "MIT WITH Commons-Clause",
 			"workspaces": [
 				"apps/*",
@@ -1850,7 +1850,7 @@
 				"react-dom": "^19.0.0",
 				"tailwind-merge": "^3.3.1",
 				"tailwindcss": "4.1.11",
-				"task-master-ai": "*",
+				"task-master-ai": "0.39.0-rc.0",
 				"typescript": "^5.9.2"
 			},
 			"engines": {
diff --git a/packages/tm-profiles/src/detection/detector.spec.ts b/packages/tm-profiles/src/detection/detector.spec.ts
new file mode 100644
index 00000000..faaa21a6
--- /dev/null
+++ b/packages/tm-profiles/src/detection/detector.spec.ts
@@ -0,0 +1,242 @@
+import fs from 'fs';
+import os from 'os';
+import path from 'path';
+import { afterEach, beforeEach, describe, expect, it } from 'vitest';
+import {
+	detectInstalledIDEs,
+	detectProfile,
+	getPreSelectedProfiles
+} from './detector.js';
+import { IDE_MARKERS } from './profiles-map.js';
+
+// Use real fs operations with temp directories for accurate testing
+describe('IDE Detection', () => {
+	let tempDir: string;
+
+	beforeEach(() => {
+		// Create a real temp directory for each test
+		tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'tm-detection-test-'));
+	});
+
+	afterEach(() => {
+		// Clean up temp directory
+		fs.rmSync(tempDir, { recursive: true, force: true });
+	});
+
+	describe('detectInstalledIDEs', () => {
+		it('should detect a single IDE directory', () => {
+			// Arrange - create .cursor directory
+			fs.mkdirSync(path.join(tempDir, '.cursor'));
+
+			// Act
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert
+			expect(results).toHaveLength(1);
+			expect(results[0]).toEqual({
+				profileName: 'cursor',
+				markerPath: '.cursor',
+				displayName: 'Cursor',
+				exists: true
+			});
+		});
+
+		it('should detect multiple IDE directories', () => {
+			// Arrange - create multiple IDE directories
+			fs.mkdirSync(path.join(tempDir, '.cursor'));
+			fs.mkdirSync(path.join(tempDir, '.claude'));
+			fs.mkdirSync(path.join(tempDir, '.windsurf'));
+
+			// Act
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert
+			expect(results).toHaveLength(3);
+			const profileNames = results.map((r) => r.profileName);
+			expect(profileNames).toContain('cursor');
+			expect(profileNames).toContain('claude');
+			expect(profileNames).toContain('windsurf');
+		});
+
+		it('should return empty array when no IDEs are detected', () => {
+			// Act - tempDir has no IDE directories
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert
+			expect(results).toHaveLength(0);
+		});
+
+		it('should detect directory markers for all directory-based profiles', () => {
+			// Arrange - create all directory-based markers
+			const directoryMarkers = [
+				'.cursor',
+				'.claude',
+				'.windsurf',
+				'.roo',
+				'.cline',
+				'.vscode',
+				'.kiro',
+				'.zed',
+				'.kilo',
+				'.trae',
+				'.gemini',
+				'.opencode',
+				'.codex'
+			];
+
+			for (const marker of directoryMarkers) {
+				fs.mkdirSync(path.join(tempDir, marker));
+			}
+
+			// Act
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert
+			expect(results.length).toBe(directoryMarkers.length);
+		});
+
+		it('should detect file-based markers (GEMINI.md)', () => {
+			// Arrange - create GEMINI.md file (but no .gemini directory)
+			fs.writeFileSync(path.join(tempDir, 'GEMINI.md'), '# Gemini config');
+
+			// Act
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert
+			expect(results).toHaveLength(1);
+			expect(results[0]).toEqual({
+				profileName: 'gemini',
+				markerPath: 'GEMINI.md',
+				displayName: 'Gemini',
+				exists: true
+			});
+		});
+
+		it('should prefer directory marker over file marker for Gemini', () => {
+			// Arrange - create both .gemini directory and GEMINI.md file
+			fs.mkdirSync(path.join(tempDir, '.gemini'));
+			fs.writeFileSync(path.join(tempDir, 'GEMINI.md'), '# Gemini config');
+
+			// Act
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert - should only detect once, with directory marker
+			const geminiResults = results.filter((r) => r.profileName === 'gemini');
+			expect(geminiResults).toHaveLength(1);
+			expect(geminiResults[0].markerPath).toBe('.gemini');
+		});
+
+		it('should not detect files as directories', () => {
+			// Arrange - create a file named .cursor instead of directory
+			fs.writeFileSync(path.join(tempDir, '.cursor'), 'not a directory');
+
+			// Act
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert - should not detect because it's a file, not a directory
+			expect(results.filter((r) => r.profileName === 'cursor')).toHaveLength(0);
+		});
+
+		it('should not detect directories as files', () => {
+			// Arrange - create a directory named GEMINI.md instead of file
+			fs.mkdirSync(path.join(tempDir, 'GEMINI.md'));
+
+			// Act
+			const results = detectInstalledIDEs({ projectRoot: tempDir });
+
+			// Assert - should not detect GEMINI.md as it's a directory, not a file
+			const geminiResults = results.filter((r) => r.profileName === 'gemini');
+			expect(geminiResults).toHaveLength(0);
+		});
+	});
+
+	describe('getPreSelectedProfiles', () => {
+		it('should return profile names only', () => {
+			// Arrange
+			fs.mkdirSync(path.join(tempDir, '.cursor'));
+			fs.mkdirSync(path.join(tempDir, '.claude'));
+
+			// Act
+			const profiles = getPreSelectedProfiles({ projectRoot: tempDir });
+
+			// Assert
+			expect(profiles).toEqual(expect.arrayContaining(['cursor', 'claude']));
+			expect(profiles).toHaveLength(2);
+		});
+
+		it('should return empty array when no IDEs detected', () => {
+			// Act
+			const profiles = getPreSelectedProfiles({ projectRoot: tempDir });
+
+			// Assert
+			expect(profiles).toEqual([]);
+		});
+	});
+
+	describe('detectProfile', () => {
+		it('should return detection result for existing profile', () => {
+			// Arrange
+			fs.mkdirSync(path.join(tempDir, '.cursor'));
+
+			// Act
+			const result = detectProfile('cursor', tempDir);
+
+			// Assert
+			expect(result).toEqual({
+				profileName: 'cursor',
+				markerPath: '.cursor',
+				displayName: 'Cursor',
+				exists: true
+			});
+		});
+
+		it('should return null for non-existing profile', () => {
+			// Act - no .cursor directory exists
+			const result = detectProfile('cursor', tempDir);
+
+			// Assert
+			expect(result).toBeNull();
+		});
+
+		it('should return null for non-detectable profile (amp)', () => {
+			// Act
+			const result = detectProfile('amp', tempDir);
+
+			// Assert
+			expect(result).toBeNull();
+		});
+	});
+});
+
+describe('IDE_MARKERS', () => {
+	it('should have 13 detectable profiles', () => {
+		// amp is not detectable
+		expect(IDE_MARKERS).toHaveLength(13);
+	});
+
+	it('should have valid marker definitions for all profiles', () => {
+		for (const marker of IDE_MARKERS) {
+			expect(marker.profileName).toBeTruthy();
+			expect(marker.displayName).toBeTruthy();
+			expect(marker.markers).toBeInstanceOf(Array);
+			expect(marker.markers.length).toBeGreaterThan(0);
+
+			for (const m of marker.markers) {
+				expect(m.path).toBeTruthy();
+				expect(['directory', 'file']).toContain(m.type);
+			}
+		}
+	});
+
+	it('should include cursor, claude, and windsurf profiles', () => {
+		const profileNames = IDE_MARKERS.map((m) => m.profileName);
+		expect(profileNames).toContain('cursor');
+		expect(profileNames).toContain('claude');
+		expect(profileNames).toContain('windsurf');
+	});
+
+	it('should not include amp (no known marker)', () => {
+		const profileNames = IDE_MARKERS.map((m) => m.profileName);
+		expect(profileNames).not.toContain('amp');
+	});
+});
diff --git a/packages/tm-profiles/src/detection/detector.ts b/packages/tm-profiles/src/detection/detector.ts
new file mode 100644
index 00000000..87df2fb9
--- /dev/null
+++ b/packages/tm-profiles/src/detection/detector.ts
@@ -0,0 +1,84 @@
+/**
+ * IDE detection logic for auto-detecting installed IDEs in project directories.
+ */
+import fs from 'fs';
+import path from 'path';
+import { IDE_MARKERS } from './profiles-map.js';
+import type { DetectionResult, DetectionOptions } from './types.js';
+
+/**
+ * Detect installed IDEs by checking for marker directories/files.
+ *
+ * @param options - Detection options including project root
+ * @returns Array of detected IDE profiles
+ *
+ * @example
+ * ```typescript
+ * const detected = detectInstalledIDEs({ projectRoot: '/path/to/project' });
+ * // Returns: [{ profileName: 'cursor', markerPath: '.cursor', displayName: 'Cursor', exists: true }]
+ * ```
+ */
+export function detectInstalledIDEs(
+	options: DetectionOptions
+): DetectionResult[] {
+	const { projectRoot } = options;
+	const results: DetectionResult[] = [];
+
+	for (const ideMarker of IDE_MARKERS) {
+		// Check each marker (directory or file) - first match wins
+		for (const marker of ideMarker.markers) {
+			const fullPath = path.join(projectRoot, marker.path);
+
+			try {
+				const stat = fs.statSync(fullPath);
+				const exists =
+					marker.type === 'directory' ? stat.isDirectory() : stat.isFile();
+
+				if (exists) {
+					results.push({
+						profileName: ideMarker.profileName,
+						markerPath: marker.path,
+						displayName: ideMarker.displayName,
+						exists: true
+					});
+					break; // Found one marker, no need to check others for this IDE
+				}
+			} catch {
+				// File/directory doesn't exist or can't be accessed - continue to next marker
+			}
+		}
+	}
+
+	return results;
+}
+
+/**
+ * Get profile names that should be pre-selected based on detected IDEs.
+ *
+ * @param options - Detection options including project root
+ * @returns Array of profile names (e.g., ['cursor', 'claude'])
+ *
+ * @example
+ * ```typescript
+ * const profiles = getPreSelectedProfiles({ projectRoot: '/path/to/project' });
+ * // Returns: ['cursor', 'claude']
+ * ```
+ */
+export function getPreSelectedProfiles(options: DetectionOptions): string[] {
+	return detectInstalledIDEs(options).map((r) => r.profileName);
+}
+
+/**
+ * Detect a specific profile's IDE marker.
+ *
+ * @param profileName - Profile to check (e.g., 'cursor')
+ * @param projectRoot - Project root directory
+ * @returns Detection result if found, null otherwise
+ */
+export function detectProfile(
+	profileName: string,
+	projectRoot: string
+): DetectionResult | null {
+	const detected = detectInstalledIDEs({ projectRoot });
+	return detected.find((r) => r.profileName === profileName) ?? null;
+}
diff --git a/packages/tm-profiles/src/detection/index.ts b/packages/tm-profiles/src/detection/index.ts
new file mode 100644
index 00000000..c1edffa6
--- /dev/null
+++ b/packages/tm-profiles/src/detection/index.ts
@@ -0,0 +1,20 @@
+/**
+ * IDE Detection Module
+ *
+ * Provides functions to auto-detect installed IDEs based on project markers.
+ * Used for pre-selecting profiles in `tm rules add` and
+ * non-interactive mode with `tm rules add -y`.
+ */
+
+export type { DetectionResult, DetectionOptions } from './types.js';
+export type { IDEMarker } from './profiles-map.js';
+export {
+	IDE_MARKERS,
+	getIDEMarker,
+	isDetectableProfile
+} from './profiles-map.js';
+export {
+	detectInstalledIDEs,
+	getPreSelectedProfiles,
+	detectProfile
+} from './detector.js';
diff --git a/packages/tm-profiles/src/detection/profiles-map.ts b/packages/tm-profiles/src/detection/profiles-map.ts
new file mode 100644
index 00000000..cb3444ba
--- /dev/null
+++ b/packages/tm-profiles/src/detection/profiles-map.ts
@@ -0,0 +1,108 @@
+/**
+ * IDE marker definitions for auto-detection.
+ * Maps profile names to their filesystem markers.
+ */
+
+/**
+ * Represents an IDE marker configuration
+ */
+export interface IDEMarker {
+	/** Profile name matching RULE_PROFILES */
+	profileName: string;
+	/** Markers to check (first match wins) */
+	markers: Array<{ path: string; type: 'directory' | 'file' }>;
+	/** Human-readable display name */
+	displayName: string;
+}
+
+/**
+ * IDE marker definitions - directory or file-based detection.
+ * Order matches typical usage frequency for slightly faster detection.
+ */
+export const IDE_MARKERS: IDEMarker[] = [
+	// Most common IDE profiles
+	{
+		profileName: 'cursor',
+		markers: [{ path: '.cursor', type: 'directory' }],
+		displayName: 'Cursor'
+	},
+	{
+		profileName: 'claude',
+		markers: [{ path: '.claude', type: 'directory' }],
+		displayName: 'Claude Code'
+	},
+	{
+		profileName: 'windsurf',
+		markers: [{ path: '.windsurf', type: 'directory' }],
+		displayName: 'Windsurf'
+	},
+	{
+		profileName: 'vscode',
+		markers: [{ path: '.vscode', type: 'directory' }],
+		displayName: 'VS Code'
+	},
+	{
+		profileName: 'roo',
+		markers: [{ path: '.roo', type: 'directory' }],
+		displayName: 'Roo Code'
+	},
+	{
+		profileName: 'cline',
+		markers: [{ path: '.cline', type: 'directory' }],
+		displayName: 'Cline'
+	},
+	{
+		profileName: 'kiro',
+		markers: [{ path: '.kiro', type: 'directory' }],
+		displayName: 'Kiro'
+	},
+	{
+		profileName: 'zed',
+		markers: [{ path: '.zed', type: 'directory' }],
+		displayName: 'Zed'
+	},
+	{
+		profileName: 'kilo',
+		markers: [{ path: '.kilo', type: 'directory' }],
+		displayName: 'Kilo Code'
+	},
+	{
+		profileName: 'trae',
+		markers: [{ path: '.trae', type: 'directory' }],
+		displayName: 'Trae'
+	},
+	// Integration guides with detectable markers
+	{
+		profileName: 'gemini',
+		markers: [
+			{ path: '.gemini', type: 'directory' },
+			{ path: 'GEMINI.md', type: 'file' }
+		],
+		displayName: 'Gemini'
+	},
+	{
+		profileName: 'opencode',
+		markers: [{ path: '.opencode', type: 'directory' }],
+		displayName: 'OpenCode'
+	},
+	{
+		profileName: 'codex',
+		markers: [{ path: '.codex', type: 'directory' }],
+		displayName: 'Codex'
+	}
+	// Note: 'amp' has no known project-local marker
+];
+
+/**
+ * Get IDE marker config for a specific profile
+ */
+export function getIDEMarker(profileName: string): IDEMarker | undefined {
+	return IDE_MARKERS.find((m) => m.profileName === profileName);
+}
+
+/**
+ * Check if a profile has detectable markers
+ */
+export function isDetectableProfile(profileName: string): boolean {
+	return IDE_MARKERS.some((m) => m.profileName === profileName);
+}
diff --git a/packages/tm-profiles/src/detection/types.ts b/packages/tm-profiles/src/detection/types.ts
new file mode 100644
index 00000000..524ff0e8
--- /dev/null
+++ b/packages/tm-profiles/src/detection/types.ts
@@ -0,0 +1,25 @@
+/**
+ * Detection types for auto-detecting IDE markers in project directories.
+ */
+
+/**
+ * Result of detecting an IDE marker in the project
+ */
+export interface DetectionResult {
+	/** Profile name (e.g., 'cursor', 'claude') */
+	profileName: string;
+	/** The marker path that was found (e.g., '.cursor') */
+	markerPath: string;
+	/** Human-readable display name (e.g., 'Cursor', 'Claude Code') */
+	displayName: string;
+	/** Whether the marker exists */
+	exists: boolean;
+}
+
+/**
+ * Options for IDE detection
+ */
+export interface DetectionOptions {
+	/** Project root directory to search in */
+	projectRoot: string;
+}
diff --git a/packages/tm-profiles/src/index.ts b/packages/tm-profiles/src/index.ts
index 90b5365e..e6429b11 100644
--- a/packages/tm-profiles/src/index.ts
+++ b/packages/tm-profiles/src/index.ts
@@ -8,3 +8,6 @@ export * from './slash-commands/index.js';
 
 // Re-export shell utilities
 export * from './shell-utils.js';
+
+// Re-export IDE detection utilities
+export * from './detection/index.js';
diff --git a/scripts/modules/commands.js b/scripts/modules/commands.js
index 2b5218b4..b8ac63c2 100644
--- a/scripts/modules/commands.js
+++ b/scripts/modules/commands.js
@@ -145,8 +145,10 @@ import {
 	categorizeRemovalResults,
 	generateProfileRemovalSummary,
 	generateProfileSummary,
+	processRuleProfiles,
 	runInteractiveProfilesSetup
 } from '../../src/utils/profiles.js';
+import { detectInstalledIDEs } from '@tm/profiles';
 import {
 	convertAllRulesToProfileRules,
 	getRulesProfile,
@@ -4393,14 +4395,19 @@ Examples:
 			'-m, --mode <mode>',
 			'Operating mode for filtering rules/commands (solo or team). Auto-detected from config if not specified.'
 		)
+		.option(
+			'-y, --yes',
+			'Non-interactive mode: auto-detect IDEs and install rules without prompting'
+		)
 		.addHelpText(
 			'after',
 			`
 		Examples:
-		$ task-master rules ${RULES_ACTIONS.ADD} windsurf roo          # Add Windsurf and Roo rule sets
+		$ task-master rules ${RULES_ACTIONS.ADD}                       # Interactive setup with auto-detected IDEs pre-selected
+		$ task-master rules ${RULES_ACTIONS.ADD} -y                    # Auto-detect and install without prompting
+		$ task-master rules ${RULES_ACTIONS.ADD} windsurf roo          # Add specific profiles
 		$ task-master rules ${RULES_ACTIONS.ADD} cursor --mode=team    # Add Cursor rules for team mode only
-		$ task-master rules ${RULES_ACTIONS.REMOVE} windsurf          # Remove Windsurf rule set
-		$ task-master rules --${RULES_SETUP_ACTION}                  # Interactive setup to select rule profiles`
+		$ task-master rules ${RULES_ACTIONS.REMOVE} windsurf          # Remove Windsurf rule set`
 		)
 		.action(async (action, profiles, options) => {
 			const taskMaster = initTaskMaster({});
@@ -4425,7 +4432,8 @@ Examples:
 			 */
 			if (options[RULES_SETUP_ACTION]) {
 				// Run interactive rules setup ONLY (no project init)
-				const selectedRuleProfiles = await runInteractiveProfilesSetup();
+				const selectedRuleProfiles =
+					await runInteractiveProfilesSetup(projectRoot);
 
 				if (!selectedRuleProfiles || selectedRuleProfiles.length === 0) {
 					console.log(chalk.yellow('No profiles selected. Exiting.'));
@@ -4438,30 +4446,11 @@ Examples:
 					)
 				);
 
-				for (let i = 0; i < selectedRuleProfiles.length; i++) {
-					const profile = selectedRuleProfiles[i];
-					console.log(
-						chalk.blue(
-							`Processing profile ${i + 1}/${selectedRuleProfiles.length}: ${profile}...`
-						)
-					);
-
-					if (!isValidProfile(profile)) {
-						console.warn(
-							`Rule profile for "${profile}" not found. Valid profiles: ${RULE_PROFILES.join(', ')}. Skipping.`
-						);
-						continue;
-					}
-					const profileConfig = getRulesProfile(profile);
-					const mode = await getOperatingMode(options.mode);
-					const addResult = convertAllRulesToProfileRules(
-						projectRoot,
-						profileConfig,
-						{ mode }
-					);
-
-					console.log(chalk.green(generateProfileSummary(profile, addResult)));
-				}
+				await processRuleProfiles(
+					selectedRuleProfiles,
+					projectRoot,
+					options.mode
+				);
 
 				console.log(
 					chalk.green(
@@ -4486,6 +4475,98 @@ Examples:
 				process.exit(1);
 			}
 
+			/**
+			 * 'task-master rules add' (no profiles):
+			 *
+			 * - Without -y: Opens interactive setup with auto-detected IDEs pre-selected
+			 * - With -y: Non-interactive mode, installs rules for all detected IDEs
+			 *
+			 * Example usage:
+			 *   $ task-master rules add       # Interactive setup with pre-selection
+			 *   $ task-master rules add -y    # Auto-detect and install without prompting
+			 */
+			if (
+				action === RULES_ACTIONS.ADD &&
+				(!profiles || profiles.length === 0)
+			) {
+				let selectedRuleProfiles;
+
+				if (options.yes) {
+					// Non-interactive mode: auto-detect and install
+					console.log(chalk.blue('\n🔍 Auto-detecting installed IDEs...\n'));
+
+					const detected = detectInstalledIDEs({ projectRoot });
+
+					if (detected.length === 0) {
+						console.log(
+							chalk.yellow(
+								'No IDE markers detected in this project.\n' +
+									chalk.gray(
+										'Searched for: .cursor, .claude, .windsurf, .roo, .vscode, etc.\n'
+									)
+							)
+						);
+						console.log(
+							chalk.cyan(
+								'To manually select profiles, run without -y flag:\n' +
+									'  task-master rules add\n\n' +
+									'Or specify profiles directly:\n' +
+									'  task-master rules add cursor windsurf\n'
+							)
+						);
+						return;
+					}
+
+					// Show what was detected
+					console.log(chalk.green('✓ Detected the following IDEs:\n'));
+					for (const ide of detected) {
+						console.log(
+							`  • ${ide.displayName} ${chalk.gray(`(${ide.markerPath})`)}`
+						);
+					}
+					console.log('');
+
+					selectedRuleProfiles = detected.map((d) => d.profileName);
+				} else {
+					// Interactive mode: open setup with pre-selection
+					selectedRuleProfiles = await runInteractiveProfilesSetup(projectRoot);
+				}
+
+				if (!selectedRuleProfiles || selectedRuleProfiles.length === 0) {
+					console.log(chalk.yellow('No profiles selected. Exiting.'));
+					return;
+				}
+
+				console.log(
+					chalk.blue(
+						`Installing ${selectedRuleProfiles.length} selected profile(s)...`
+					)
+				);
+
+				const addResults = await processRuleProfiles(
+					selectedRuleProfiles,
+					projectRoot,
+					options.mode
+				);
+
+				// Final summary
+				const { allSuccessfulProfiles, totalSuccess, totalFailed } =
+					categorizeProfileResults(addResults);
+				console.log(
+					chalk.green(
+						`\n✓ Successfully installed ${allSuccessfulProfiles.length} profile(s)`
+					)
+				);
+				if (totalSuccess > 0) {
+					console.log(
+						chalk.gray(
+							`  ${totalSuccess} files processed, ${totalFailed} failed`
+						)
+					);
+				}
+				return;
+			}
+
 			if (!profiles || profiles.length === 0) {
 				console.error(
 					'Please specify at least one rule profile (e.g., windsurf, roo).'
diff --git a/src/utils/profiles.js b/src/utils/profiles.js
index 9cdc6800..28714f16 100644
--- a/src/utils/profiles.js
+++ b/src/utils/profiles.js
@@ -7,9 +7,14 @@ import path from 'path';
 import boxen from 'boxen';
 import chalk from 'chalk';
 import inquirer from 'inquirer';
-import { log } from '../../scripts/modules/utils.js';
 import { RULE_PROFILES } from '../constants/profiles.js';
-import { getRulesProfile } from './rule-transformer.js';
+import {
+	convertAllRulesToProfileRules,
+	getRulesProfile,
+	isValidProfile
+} from './rule-transformer.js';
+import { getPreSelectedProfiles } from '@tm/profiles';
+import { getOperatingMode } from '../../scripts/modules/config-manager.js';
 
 // =============================================================================
 // PROFILE DETECTION
@@ -95,13 +100,28 @@ export function wouldRemovalLeaveNoProfiles(projectRoot, profilesToRemove) {
  * Launches an interactive prompt for selecting which rule profiles to include in your project.
  *
  * This function dynamically lists all available profiles (from RULE_PROFILES) and presents them as checkboxes.
- * The user must select at least one profile (no defaults are pre-selected). The result is an array of selected profile names.
+ * Detected IDE profiles (based on directory markers like .cursor, .claude, etc.) are pre-selected.
+ * The result is an array of selected profile names.
  *
  * Used by both project initialization (init) and the CLI 'task-master rules setup' command.
  *
+ * @param {string} [projectRoot=process.cwd()] - Project root directory for IDE detection
  * @returns {Promise<string[]>} Array of selected profile names (e.g., ['cursor', 'windsurf'])
  */
-export async function runInteractiveProfilesSetup() {
+export async function runInteractiveProfilesSetup(projectRoot = process.cwd()) {
+	// Auto-detect installed IDEs for pre-selection
+	const preSelected = getPreSelectedProfiles({ projectRoot });
+
+	if (preSelected.length > 0) {
+		const detectedNames = preSelected
+			.map((p) => getProfileDisplayName(p))
+			.join(', ');
+		console.log(
+			chalk.cyan(`\n🔍 Auto-detected IDEs: ${detectedNames}`) +
+				chalk.gray(' (pre-selected below)\n')
+		);
+	}
+
 	// Generate the profile list dynamically with proper display names, alphabetized
 	const profileDescriptions = RULE_PROFILES.map((profileName) => {
 		const displayName = getProfileDisplayName(profileName);
@@ -165,10 +185,14 @@ export async function runInteractiveProfilesSetup() {
 	);
 
 	// Generate choices in the same order as the display text above
+	// Pre-select profiles that were auto-detected
 	const sortedChoices = profileDescriptions.map(
 		({ profileName, displayName }) => ({
-			name: displayName,
-			value: profileName
+			name: preSelected.includes(profileName)
+				? `${displayName} ${chalk.dim('(detected)')}`
+				: displayName,
+			value: profileName,
+			checked: preSelected.includes(profileName)
 		})
 	);
 
@@ -185,6 +209,57 @@ export async function runInteractiveProfilesSetup() {
 	return ruleProfiles;
 }
 
+// =============================================================================
+// PROFILE PROCESSING
+// =============================================================================
+
+/**
+ * Processes rule profiles by validating, resolving mode, and installing rules.
+ * @param {string[]} profiles - Array of profile names to process
+ * @param {string} projectRoot - Project root directory path
+ * @param {string|undefined} modeOption - Operating mode option from CLI
+ * @returns {Promise<Array<{profileName: string, success: number, failed: number}>>} Results for each profile
+ */
+export async function processRuleProfiles(profiles, projectRoot, modeOption) {
+	const results = [];
+	const mode = await getOperatingMode(modeOption);
+
+	for (let i = 0; i < profiles.length; i++) {
+		const profile = profiles[i];
+		console.log(
+			chalk.blue(
+				`Processing profile ${i + 1}/${profiles.length}: ${profile}...`
+			)
+		);
+
+		if (!isValidProfile(profile)) {
+			console.warn(
+				`Rule profile for "${profile}" not found. Valid profiles: ${RULE_PROFILES.join(', ')}. Skipping.`
+			);
+			continue;
+		}
+
+		const profileConfig = getRulesProfile(profile);
+		const addResult = convertAllRulesToProfileRules(
+			projectRoot,
+			profileConfig,
+			{
+				mode
+			}
+		);
+
+		results.push({
+			profileName: profile,
+			success: addResult.success,
+			failed: addResult.failed
+		});
+
+		console.log(chalk.green(generateProfileSummary(profile, addResult)));
+	}
+
+	return results;
+}
+
 // =============================================================================
 // PROFILE SUMMARY
 // =============================================================================