Merge branch: resolve conflict in worktree-actions-dropdown.tsx

apps/server/src/index.ts

@@ -597,6 +597,26 @@ const startServer = (port: number) => {
 
 startServer(PORT);
 
+// Global error handlers to prevent crashes from uncaught errors
+process.on('unhandledRejection', (reason: unknown, _promise: Promise<unknown>) => {
+  logger.error('Unhandled Promise Rejection:', {
+    reason: reason instanceof Error ? reason.message : String(reason),
+    stack: reason instanceof Error ? reason.stack : undefined,
+  });
+  // Don't exit - log the error and continue running
+  // This prevents the server from crashing due to unhandled rejections
+});
+
+process.on('uncaughtException', (error: Error) => {
+  logger.error('Uncaught Exception:', {
+    message: error.message,
+    stack: error.stack,
+  });
+  // Exit on uncaught exceptions to prevent undefined behavior
+  // The process is in an unknown state after an uncaught exception
+  process.exit(1);
+});
+
 // Graceful shutdown
 process.on('SIGTERM', () => {
   logger.info('SIGTERM received, shutting down...');

apps/server/src/routes/app-spec/common.ts

@@ -6,26 +6,57 @@ import { createLogger } from '@automaker/utils';
 
 const logger = createLogger('SpecRegeneration');
 
-// Shared state for tracking generation status - private
-let isRunning = false;
-let currentAbortController: AbortController | null = null;
+// Shared state for tracking generation status - scoped by project path
+const runningProjects = new Map<string, boolean>();
+const abortControllers = new Map<string, AbortController>();
 
 /**
- * Get the current running state
+ * Get the running state for a specific project
  */
-export function getSpecRegenerationStatus(): {
+export function getSpecRegenerationStatus(projectPath?: string): {
   isRunning: boolean;
   currentAbortController: AbortController | null;
+  projectPath?: string;
 } {
-  return { isRunning, currentAbortController };
+  if (projectPath) {
+    return {
+      isRunning: runningProjects.get(projectPath) || false,
+      currentAbortController: abortControllers.get(projectPath) || null,
+      projectPath,
+    };
+  }
+  // Fallback: check if any project is running (for backward compatibility)
+  const isAnyRunning = Array.from(runningProjects.values()).some((running) => running);
+  return { isRunning: isAnyRunning, currentAbortController: null };
 }
 
 /**
- * Set the running state and abort controller
+ * Get the project path that is currently running (if any)
  */
-export function setRunningState(running: boolean, controller: AbortController | null = null): void {
-  isRunning = running;
-  currentAbortController = controller;
+export function getRunningProjectPath(): string | null {
+  for (const [path, running] of runningProjects.entries()) {
+    if (running) return path;
+  }
+  return null;
+}
+
+/**
+ * Set the running state and abort controller for a specific project
+ */
+export function setRunningState(
+  projectPath: string,
+  running: boolean,
+  controller: AbortController | null = null
+): void {
+  if (running) {
+    runningProjects.set(projectPath, true);
+    if (controller) {
+      abortControllers.set(projectPath, controller);
+    }
+  } else {
+    runningProjects.delete(projectPath);
+    abortControllers.delete(projectPath);
+  }
 }
 
 /**

apps/server/src/routes/app-spec/routes/create.ts

@@ -47,17 +47,17 @@ export function createCreateHandler(events: EventEmitter) {
         return;
       }
 
-      const { isRunning } = getSpecRegenerationStatus();
+      const { isRunning } = getSpecRegenerationStatus(projectPath);
       if (isRunning) {
-        logger.warn('Generation already running, rejecting request');
-        res.json({ success: false, error: 'Spec generation already running' });
+        logger.warn('Generation already running for project:', projectPath);
+        res.json({ success: false, error: 'Spec generation already running for this project' });
         return;
       }
 
       logAuthStatus('Before starting generation');
 
       const abortController = new AbortController();
-      setRunningState(true, abortController);
+      setRunningState(projectPath, true, abortController);
       logger.info('Starting background generation task...');
 
       // Start generation in background
@@ -80,7 +80,7 @@ export function createCreateHandler(events: EventEmitter) {
         })
         .finally(() => {
           logger.info('Generation task finished (success or error)');
-          setRunningState(false, null);
+          setRunningState(projectPath, false, null);
         });
 
       logger.info('Returning success response (generation running in background)');

apps/server/src/routes/app-spec/routes/generate-features.ts

@@ -40,17 +40,17 @@ export function createGenerateFeaturesHandler(
         return;
       }
 
-      const { isRunning } = getSpecRegenerationStatus();
+      const { isRunning } = getSpecRegenerationStatus(projectPath);
       if (isRunning) {
-        logger.warn('Generation already running, rejecting request');
-        res.json({ success: false, error: 'Generation already running' });
+        logger.warn('Generation already running for project:', projectPath);
+        res.json({ success: false, error: 'Generation already running for this project' });
         return;
       }
 
       logAuthStatus('Before starting feature generation');
 
       const abortController = new AbortController();
-      setRunningState(true, abortController);
+      setRunningState(projectPath, true, abortController);
       logger.info('Starting background feature generation task...');
 
       generateFeaturesFromSpec(projectPath, events, abortController, maxFeatures, settingsService)
@@ -63,7 +63,7 @@ export function createGenerateFeaturesHandler(
         })
         .finally(() => {
           logger.info('Feature generation task finished (success or error)');
-          setRunningState(false, null);
+          setRunningState(projectPath, false, null);
         });
 
       logger.info('Returning success response (generation running in background)');

apps/server/src/routes/app-spec/routes/generate.ts

@@ -48,17 +48,17 @@ export function createGenerateHandler(events: EventEmitter, settingsService?: Se
         return;
       }
 
-      const { isRunning } = getSpecRegenerationStatus();
+      const { isRunning } = getSpecRegenerationStatus(projectPath);
       if (isRunning) {
-        logger.warn('Generation already running, rejecting request');
-        res.json({ success: false, error: 'Spec generation already running' });
+        logger.warn('Generation already running for project:', projectPath);
+        res.json({ success: false, error: 'Spec generation already running for this project' });
         return;
       }
 
       logAuthStatus('Before starting generation');
 
       const abortController = new AbortController();
-      setRunningState(true, abortController);
+      setRunningState(projectPath, true, abortController);
       logger.info('Starting background generation task...');
 
       generateSpec(
@@ -81,7 +81,7 @@ export function createGenerateHandler(events: EventEmitter, settingsService?: Se
         })
         .finally(() => {
           logger.info('Generation task finished (success or error)');
-          setRunningState(false, null);
+          setRunningState(projectPath, false, null);
         });
 
       logger.info('Returning success response (generation running in background)');

apps/server/src/routes/app-spec/routes/status.ts

@@ -6,10 +6,11 @@ import type { Request, Response } from 'express';
 import { getSpecRegenerationStatus, getErrorMessage } from '../common.js';
 
 export function createStatusHandler() {
-  return async (_req: Request, res: Response): Promise<void> => {
+  return async (req: Request, res: Response): Promise<void> => {
     try {
-      const { isRunning } = getSpecRegenerationStatus();
-      res.json({ success: true, isRunning });
+      const projectPath = req.query.projectPath as string | undefined;
+      const { isRunning } = getSpecRegenerationStatus(projectPath);
+      res.json({ success: true, isRunning, projectPath });
     } catch (error) {
       res.status(500).json({ success: false, error: getErrorMessage(error) });
     }

apps/server/src/routes/app-spec/routes/stop.ts

@@ -6,13 +6,16 @@ import type { Request, Response } from 'express';
 import { getSpecRegenerationStatus, setRunningState, getErrorMessage } from '../common.js';
 
 export function createStopHandler() {
-  return async (_req: Request, res: Response): Promise<void> => {
+  return async (req: Request, res: Response): Promise<void> => {
     try {
-      const { currentAbortController } = getSpecRegenerationStatus();
+      const { projectPath } = req.body as { projectPath?: string };
+      const { currentAbortController } = getSpecRegenerationStatus(projectPath);
       if (currentAbortController) {
         currentAbortController.abort();
       }
-      setRunningState(false, null);
+      if (projectPath) {
+        setRunningState(projectPath, false, null);
+      }
       res.json({ success: true });
     } catch (error) {
       res.status(500).json({ success: false, error: getErrorMessage(error) });

apps/server/src/routes/auto-mode/index.ts

@@ -17,6 +17,7 @@ import { createAnalyzeProjectHandler } from './routes/analyze-project.js';
 import { createFollowUpFeatureHandler } from './routes/follow-up-feature.js';
 import { createCommitFeatureHandler } from './routes/commit-feature.js';
 import { createApprovePlanHandler } from './routes/approve-plan.js';
+import { createResumeInterruptedHandler } from './routes/resume-interrupted.js';
 
 export function createAutoModeRoutes(autoModeService: AutoModeService): Router {
   const router = Router();
@@ -63,6 +64,11 @@ export function createAutoModeRoutes(autoModeService: AutoModeService): Router {
     validatePathParams('projectPath'),
     createApprovePlanHandler(autoModeService)
   );
+  router.post(
+    '/resume-interrupted',
+    validatePathParams('projectPath'),
+    createResumeInterruptedHandler(autoModeService)
+  );
 
   return router;
 }

apps/server/src/routes/auto-mode/routes/resume-interrupted.ts

@@ -0,0 +1,42 @@
+/**
+ * Resume Interrupted Features Handler
+ *
+ * Checks for features that were interrupted (in pipeline steps or in_progress)
+ * when the server was restarted and resumes them.
+ */
+
+import type { Request, Response } from 'express';
+import { createLogger } from '@automaker/utils';
+import type { AutoModeService } from '../../../services/auto-mode-service.js';
+
+const logger = createLogger('ResumeInterrupted');
+
+interface ResumeInterruptedRequest {
+  projectPath: string;
+}
+
+export function createResumeInterruptedHandler(autoModeService: AutoModeService) {
+  return async (req: Request, res: Response): Promise<void> => {
+    const { projectPath } = req.body as ResumeInterruptedRequest;
+
+    if (!projectPath) {
+      res.status(400).json({ error: 'Project path is required' });
+      return;
+    }
+
+    logger.info(`Checking for interrupted features in ${projectPath}`);
+
+    try {
+      await autoModeService.resumeInterruptedFeatures(projectPath);
+      res.json({
+        success: true,
+        message: 'Resume check completed',
+      });
+    } catch (error) {
+      logger.error('Error resuming interrupted features:', error);
+      res.status(500).json({
+        error: error instanceof Error ? error.message : 'Unknown error',
+      });
+    }
+  };
+}

apps/server/src/routes/enhance-prompt/routes/enhance.ts

@@ -188,6 +188,7 @@ export function createEnhanceHandler(
         technical: prompts.enhancement.technicalSystemPrompt,
         simplify: prompts.enhancement.simplifySystemPrompt,
         acceptance: prompts.enhancement.acceptanceSystemPrompt,
+        'ux-reviewer': prompts.enhancement.uxReviewerSystemPrompt,
       };
       const systemPrompt = systemPromptMap[validMode];
 

apps/server/src/routes/features/index.ts

@@ -10,6 +10,7 @@ import { createGetHandler } from './routes/get.js';
 import { createCreateHandler } from './routes/create.js';
 import { createUpdateHandler } from './routes/update.js';
 import { createBulkUpdateHandler } from './routes/bulk-update.js';
+import { createBulkDeleteHandler } from './routes/bulk-delete.js';
 import { createDeleteHandler } from './routes/delete.js';
 import { createAgentOutputHandler, createRawOutputHandler } from './routes/agent-output.js';
 import { createGenerateTitleHandler } from './routes/generate-title.js';
@@ -26,6 +27,11 @@ export function createFeaturesRoutes(featureLoader: FeatureLoader): Router {
     validatePathParams('projectPath'),
     createBulkUpdateHandler(featureLoader)
   );
+  router.post(
+    '/bulk-delete',
+    validatePathParams('projectPath'),
+    createBulkDeleteHandler(featureLoader)
+  );
   router.post('/delete', validatePathParams('projectPath'), createDeleteHandler(featureLoader));
   router.post('/agent-output', createAgentOutputHandler(featureLoader));
   router.post('/raw-output', createRawOutputHandler(featureLoader));

apps/server/src/routes/features/routes/bulk-delete.ts

@@ -0,0 +1,61 @@
+/**
+ * POST /bulk-delete endpoint - Delete multiple features at once
+ */
+
+import type { Request, Response } from 'express';
+import { FeatureLoader } from '../../../services/feature-loader.js';
+import { getErrorMessage, logError } from '../common.js';
+
+interface BulkDeleteRequest {
+  projectPath: string;
+  featureIds: string[];
+}
+
+interface BulkDeleteResult {
+  featureId: string;
+  success: boolean;
+  error?: string;
+}
+
+export function createBulkDeleteHandler(featureLoader: FeatureLoader) {
+  return async (req: Request, res: Response): Promise<void> => {
+    try {
+      const { projectPath, featureIds } = req.body as BulkDeleteRequest;
+
+      if (!projectPath || !featureIds || !Array.isArray(featureIds) || featureIds.length === 0) {
+        res.status(400).json({
+          success: false,
+          error: 'projectPath and featureIds (non-empty array) are required',
+        });
+        return;
+      }
+
+      const results = await Promise.all(
+        featureIds.map(async (featureId) => {
+          const success = await featureLoader.delete(projectPath, featureId);
+          if (success) {
+            return { featureId, success: true };
+          }
+          return {
+            featureId,
+            success: false,
+            error: 'Deletion failed. Check server logs for details.',
+          };
+        })
+      );
+
+      const successCount = results.reduce((count, r) => count + (r.success ? 1 : 0), 0);
+      const failureCount = results.length - successCount;
+
+      res.json({
+        success: failureCount === 0,
+        deletedCount: successCount,
+        failedCount: failureCount,
+        results,
+      });
+    } catch (error) {
+      logError(error, 'Bulk delete features failed');
+      res.status(500).json({ success: false, error: getErrorMessage(error) });
+    }
+  };
+}

apps/server/src/routes/features/routes/update.ts

@@ -10,14 +10,21 @@ import { getErrorMessage, logError } from '../common.js';
 export function createUpdateHandler(featureLoader: FeatureLoader) {
   return async (req: Request, res: Response): Promise<void> => {
     try {
-      const { projectPath, featureId, updates, descriptionHistorySource, enhancementMode } =
-        req.body as {
-          projectPath: string;
-          featureId: string;
-          updates: Partial<Feature>;
-          descriptionHistorySource?: 'enhance' | 'edit';
-          enhancementMode?: 'improve' | 'technical' | 'simplify' | 'acceptance';
-        };
+      const {
+        projectPath,
+        featureId,
+        updates,
+        descriptionHistorySource,
+        enhancementMode,
+        preEnhancementDescription,
+      } = req.body as {
+        projectPath: string;
+        featureId: string;
+        updates: Partial<Feature>;
+        descriptionHistorySource?: 'enhance' | 'edit';
+        enhancementMode?: 'improve' | 'technical' | 'simplify' | 'acceptance' | 'ux-reviewer';
+        preEnhancementDescription?: string;
+      };
 
       if (!projectPath || !featureId || !updates) {
         res.status(400).json({
@@ -32,7 +39,8 @@ export function createUpdateHandler(featureLoader: FeatureLoader) {
         featureId,
         updates,
         descriptionHistorySource,
-        enhancementMode
+        enhancementMode,
+        preEnhancementDescription
       );
       res.json({ success: true, feature: updated });
     } catch (error) {

apps/server/src/routes/worktree/index.ts

@@ -25,6 +25,8 @@ import { createSwitchBranchHandler } from './routes/switch-branch.js';
 import {
   createOpenInEditorHandler,
   createGetDefaultEditorHandler,
+  createGetAvailableEditorsHandler,
+  createRefreshEditorsHandler,
 } from './routes/open-in-editor.js';
 import { createInitGitHandler } from './routes/init-git.js';
 import { createMigrateHandler } from './routes/migrate.js';
@@ -84,6 +86,8 @@ export function createWorktreeRoutes(events: EventEmitter): Router {
   router.post('/switch-branch', requireValidWorktree, createSwitchBranchHandler());
   router.post('/open-in-editor', validatePathParams('worktreePath'), createOpenInEditorHandler());
   router.get('/default-editor', createGetDefaultEditorHandler());
+  router.get('/available-editors', createGetAvailableEditorsHandler());
+  router.post('/refresh-editors', createRefreshEditorsHandler());
   router.post('/init-git', validatePathParams('projectPath'), createInitGitHandler());
   router.post('/migrate', createMigrateHandler());
   router.post(

apps/server/src/routes/worktree/routes/list.ts

@@ -2,18 +2,23 @@
  * POST /list endpoint - List all git worktrees
  *
  * Returns actual git worktrees from `git worktree list`.
+ * Also scans .worktrees/ directory to discover worktrees that may have been
+ * created externally or whose git state was corrupted.
  * Does NOT include tracked branches - only real worktrees with separate directories.
  */
 
 import type { Request, Response } from 'express';
 import { exec } from 'child_process';
 import { promisify } from 'util';
+import path from 'path';
 import * as secureFs from '../../../lib/secure-fs.js';
 import { isGitRepo } from '@automaker/git-utils';
 import { getErrorMessage, logError, normalizePath } from '../common.js';
 import { readAllWorktreeMetadata, type WorktreePRInfo } from '../../../lib/worktree-metadata.js';
+import { createLogger } from '@automaker/utils';
 
 const execAsync = promisify(exec);
+const logger = createLogger('Worktree');
 
 interface WorktreeInfo {
   path: string;
@@ -35,6 +40,87 @@ async function getCurrentBranch(cwd: string): Promise<string> {
   }
 }
 
+/**
+ * Scan the .worktrees directory to discover worktrees that may exist on disk
+ * but are not registered with git (e.g., created externally or corrupted state).
+ */
+async function scanWorktreesDirectory(
+  projectPath: string,
+  knownWorktreePaths: Set<string>
+): Promise<Array<{ path: string; branch: string }>> {
+  const discovered: Array<{ path: string; branch: string }> = [];
+  const worktreesDir = path.join(projectPath, '.worktrees');
+
+  try {
+    // Check if .worktrees directory exists
+    await secureFs.access(worktreesDir);
+  } catch {
+    // .worktrees directory doesn't exist
+    return discovered;
+  }
+
+  try {
+    const entries = await secureFs.readdir(worktreesDir, { withFileTypes: true });
+
+    for (const entry of entries) {
+      if (!entry.isDirectory()) continue;
+
+      const worktreePath = path.join(worktreesDir, entry.name);
+      const normalizedPath = normalizePath(worktreePath);
+
+      // Skip if already known from git worktree list
+      if (knownWorktreePaths.has(normalizedPath)) continue;
+
+      // Check if this is a valid git repository
+      const gitPath = path.join(worktreePath, '.git');
+      try {
+        const gitStat = await secureFs.stat(gitPath);
+
+        // Git worktrees have a .git FILE (not directory) that points to the parent repo
+        // Regular repos have a .git DIRECTORY
+        if (gitStat.isFile() || gitStat.isDirectory()) {
+          // Try to get the branch name
+          const branch = await getCurrentBranch(worktreePath);
+          if (branch) {
+            logger.info(
+              `Discovered worktree in .worktrees/ not in git worktree list: ${entry.name} (branch: ${branch})`
+            );
+            discovered.push({
+              path: normalizedPath,
+              branch,
+            });
+          } else {
+            // Try to get branch from HEAD if branch --show-current fails (detached HEAD)
+            try {
+              const { stdout: headRef } = await execAsync('git rev-parse --abbrev-ref HEAD', {
+                cwd: worktreePath,
+              });
+              const headBranch = headRef.trim();
+              if (headBranch && headBranch !== 'HEAD') {
+                logger.info(
+                  `Discovered worktree in .worktrees/ not in git worktree list: ${entry.name} (branch: ${headBranch})`
+                );
+                discovered.push({
+                  path: normalizedPath,
+                  branch: headBranch,
+                });
+              }
+            } catch {
+              // Can't determine branch, skip this directory
+            }
+          }
+        }
+      } catch {
+        // Not a git repo, skip
+      }
+    }
+  } catch (error) {
+    logger.warn(`Failed to scan .worktrees directory: ${getErrorMessage(error)}`);
+  }
+
+  return discovered;
+}
+
 export function createListHandler() {
   return async (req: Request, res: Response): Promise<void> => {
     try {
@@ -116,6 +202,22 @@ export function createListHandler() {
         }
       }
 
+      // Scan .worktrees directory to discover worktrees that exist on disk
+      // but are not registered with git (e.g., created externally)
+      const knownPaths = new Set(worktrees.map((w) => w.path));
+      const discoveredWorktrees = await scanWorktreesDirectory(projectPath, knownPaths);
+
+      // Add discovered worktrees to the list
+      for (const discovered of discoveredWorktrees) {
+        worktrees.push({
+          path: discovered.path,
+          branch: discovered.branch,
+          isMain: false,
+          isCurrent: discovered.branch === currentBranch,
+          hasWorktree: true,
+        });
+      }
+
       // Read all worktree metadata to get PR info
       const allMetadata = await readAllWorktreeMetadata(projectPath);
 

apps/server/src/routes/worktree/routes/open-in-editor.ts

@@ -1,78 +1,40 @@
 /**
  * POST /open-in-editor endpoint - Open a worktree directory in the default code editor
  * GET /default-editor endpoint - Get the name of the default code editor
+ * POST /refresh-editors endpoint - Clear editor cache and re-detect available editors
+ *
+ * This module uses @automaker/platform for cross-platform editor detection and launching.
  */
 
 import type { Request, Response } from 'express';
-import { exec } from 'child_process';
-import { promisify } from 'util';
+import { isAbsolute } from 'path';
+import {
+  clearEditorCache,
+  detectAllEditors,
+  detectDefaultEditor,
+  openInEditor,
+  openInFileManager,
+} from '@automaker/platform';
+import { createLogger } from '@automaker/utils';
 import { getErrorMessage, logError } from '../common.js';
 
-const execAsync = promisify(exec);
+const logger = createLogger('open-in-editor');
 
-// Editor detection with caching
-interface EditorInfo {
-  name: string;
-  command: string;
-}
-
-let cachedEditor: EditorInfo | null = null;
-
-/**
- * Detect which code editor is available on the system
- */
-async function detectDefaultEditor(): Promise<EditorInfo> {
-  // Return cached result if available
-  if (cachedEditor) {
-    return cachedEditor;
-  }
-
-  // Try Cursor first (if user has Cursor, they probably prefer it)
-  try {
-    await execAsync('which cursor || where cursor');
-    cachedEditor = { name: 'Cursor', command: 'cursor' };
-    return cachedEditor;
-  } catch {
-    // Cursor not found
-  }
-
-  // Try VS Code
-  try {
-    await execAsync('which code || where code');
-    cachedEditor = { name: 'VS Code', command: 'code' };
-    return cachedEditor;
-  } catch {
-    // VS Code not found
-  }
-
-  // Try Zed
-  try {
-    await execAsync('which zed || where zed');
-    cachedEditor = { name: 'Zed', command: 'zed' };
-    return cachedEditor;
-  } catch {
-    // Zed not found
-  }
-
-  // Try Sublime Text
-  try {
-    await execAsync('which subl || where subl');
-    cachedEditor = { name: 'Sublime Text', command: 'subl' };
-    return cachedEditor;
-  } catch {
-    // Sublime not found
-  }
-
-  // Fallback to file manager
-  const platform = process.platform;
-  if (platform === 'darwin') {
-    cachedEditor = { name: 'Finder', command: 'open' };
-  } else if (platform === 'win32') {
-    cachedEditor = { name: 'Explorer', command: 'explorer' };
-  } else {
-    cachedEditor = { name: 'File Manager', command: 'xdg-open' };
-  }
-  return cachedEditor;
+export function createGetAvailableEditorsHandler() {
+  return async (_req: Request, res: Response): Promise<void> => {
+    try {
+      const editors = await detectAllEditors();
+      res.json({
+        success: true,
+        result: {
+          editors,
+        },
+      });
+    } catch (error) {
+      logError(error, 'Get available editors failed');
+      res.status(500).json({ success: false, error: getErrorMessage(error) });
+    }
+  };
 }
 
 export function createGetDefaultEditorHandler() {
@@ -93,11 +55,41 @@ export function createGetDefaultEditorHandler() {
   };
 }
 
+/**
+ * Handler to refresh the editor cache and re-detect available editors
+ * Useful when the user has installed/uninstalled editors
+ */
+export function createRefreshEditorsHandler() {
+  return async (_req: Request, res: Response): Promise<void> => {
+    try {
+      // Clear the cache
+      clearEditorCache();
+
+      // Re-detect editors (this will repopulate the cache)
+      const editors = await detectAllEditors();
+
+      logger.info(`Editor cache refreshed, found ${editors.length} editors`);
+
+      res.json({
+        success: true,
+        result: {
+          editors,
+          message: `Found ${editors.length} available editors`,
+        },
+      });
+    } catch (error) {
+      logError(error, 'Refresh editors failed');
+      res.status(500).json({ success: false, error: getErrorMessage(error) });
+    }
+  };
+}
+
 export function createOpenInEditorHandler() {
   return async (req: Request, res: Response): Promise<void> => {
     try {
-      const { worktreePath } = req.body as {
+      const { worktreePath, editorCommand } = req.body as {
         worktreePath: string;
+        editorCommand?: string;
       };
 
       if (!worktreePath) {
@@ -108,42 +100,44 @@ export function createOpenInEditorHandler() {
         return;
       }
 
-      const editor = await detectDefaultEditor();
+      // Security: Validate that worktreePath is an absolute path
+      if (!isAbsolute(worktreePath)) {
+        res.status(400).json({
+          success: false,
+          error: 'worktreePath must be an absolute path',
+        });
+        return;
+      }
 
       try {
-        await execAsync(`${editor.command} "${worktreePath}"`);
+        // Use the platform utility to open in editor
+        const result = await openInEditor(worktreePath, editorCommand);
         res.json({
           success: true,
           result: {
-            message: `Opened ${worktreePath} in ${editor.name}`,
-            editorName: editor.name,
+            message: `Opened ${worktreePath} in ${result.editorName}`,
+            editorName: result.editorName,
           },
         });
       } catch (editorError) {
-        // If the detected editor fails, try opening in default file manager as fallback
-        const platform = process.platform;
-        let openCommand: string;
-        let fallbackName: string;
+        // If the specified editor fails, try opening in default file manager as fallback
+        logger.warn(
+          `Failed to open in editor, falling back to file manager: ${getErrorMessage(editorError)}`
+        );
 
-        if (platform === 'darwin') {
-          openCommand = `open "${worktreePath}"`;
-          fallbackName = 'Finder';
-        } else if (platform === 'win32') {
-          openCommand = `explorer "${worktreePath}"`;
-          fallbackName = 'Explorer';
-        } else {
-          openCommand = `xdg-open "${worktreePath}"`;
-          fallbackName = 'File Manager';
+        try {
+          const result = await openInFileManager(worktreePath);
+          res.json({
+            success: true,
+            result: {
+              message: `Opened ${worktreePath} in ${result.editorName}`,
+              editorName: result.editorName,
+            },
+          });
+        } catch (fallbackError) {
+          // Both editor and file manager failed
+          throw fallbackError;
         }
-
-        await execAsync(openCommand);
-        res.json({
-          success: true,
-          result: {
-            message: `Opened ${worktreePath} in ${fallbackName}`,
-            editorName: fallbackName,
-          },
-        });
       }
     } catch (error) {
       logError(error, 'Open in editor failed');

apps/server/src/services/auto-mode-service.ts

@@ -31,7 +31,13 @@ import {
 const logger = createLogger('AutoMode');
 import { resolveModelString, resolvePhaseModel, DEFAULT_MODELS } from '@automaker/model-resolver';
 import { resolveDependencies, areDependenciesSatisfied } from '@automaker/dependency-resolver';
-import { getFeatureDir, getAutomakerDir, getFeaturesDir } from '@automaker/platform';
+import {
+  getFeatureDir,
+  getAutomakerDir,
+  getFeaturesDir,
+  getExecutionStatePath,
+  ensureAutomakerDir,
+} from '@automaker/platform';
 import { exec } from 'child_process';
 import { promisify } from 'util';
 import path from 'path';
@@ -201,6 +207,29 @@ interface AutoModeConfig {
   projectPath: string;
 }
 
+/**
+ * Execution state for recovery after server restart
+ * Tracks which features were running and auto-loop configuration
+ */
+interface ExecutionState {
+  version: 1;
+  autoLoopWasRunning: boolean;
+  maxConcurrency: number;
+  projectPath: string;
+  runningFeatureIds: string[];
+  savedAt: string;
+}
+
+// Default empty execution state
+const DEFAULT_EXECUTION_STATE: ExecutionState = {
+  version: 1,
+  autoLoopWasRunning: false,
+  maxConcurrency: 3,
+  projectPath: '',
+  runningFeatureIds: [],
+  savedAt: '',
+};
+
 // Constants for consecutive failure tracking
 const CONSECUTIVE_FAILURE_THRESHOLD = 3; // Pause after 3 consecutive failures
 const FAILURE_WINDOW_MS = 60000; // Failures within 1 minute count as consecutive
@@ -322,6 +351,9 @@ export class AutoModeService {
       projectPath,
     });
 
+    // Save execution state for recovery after restart
+    await this.saveExecutionState(projectPath);
+
     // Note: Memory folder initialization is now handled by loadContextFiles
 
     // Run the loop in the background
@@ -390,17 +422,23 @@ export class AutoModeService {
    */
   async stopAutoLoop(): Promise<number> {
     const wasRunning = this.autoLoopRunning;
+    const projectPath = this.config?.projectPath;
     this.autoLoopRunning = false;
     if (this.autoLoopAbortController) {
       this.autoLoopAbortController.abort();
       this.autoLoopAbortController = null;
     }
 
+    // Clear execution state when auto-loop is explicitly stopped
+    if (projectPath) {
+      await this.clearExecutionState(projectPath);
+    }
+
     // Emit stop event immediately when user explicitly stops
     if (wasRunning) {
       this.emitAutoModeEvent('auto_mode_stopped', {
         message: 'Auto mode stopped',
-        projectPath: this.config?.projectPath,
+        projectPath,
       });
     }
 
@@ -441,6 +479,11 @@ export class AutoModeService {
     };
     this.runningFeatures.set(featureId, tempRunningFeature);
 
+    // Save execution state when feature starts
+    if (isAutoMode) {
+      await this.saveExecutionState(projectPath);
+    }
+
     try {
       // Validate that project path is allowed using centralized validation
       validateWorkingDirectory(projectPath);
@@ -695,6 +738,11 @@ export class AutoModeService {
         `Pending approvals at cleanup: ${Array.from(this.pendingApprovals.keys()).join(', ') || 'none'}`
       );
       this.runningFeatures.delete(featureId);
+
+      // Update execution state after feature completes
+      if (this.autoLoopRunning && projectPath) {
+        await this.saveExecutionState(projectPath);
+      }
     }
   }
 
@@ -2950,6 +2998,149 @@ Begin implementing task ${task.id} now.`;
     });
   }
 
+  // ============================================================================
+  // Execution State Persistence - For recovery after server restart
+  // ============================================================================
+
+  /**
+   * Save execution state to disk for recovery after server restart
+   */
+  private async saveExecutionState(projectPath: string): Promise<void> {
+    try {
+      await ensureAutomakerDir(projectPath);
+      const statePath = getExecutionStatePath(projectPath);
+      const state: ExecutionState = {
+        version: 1,
+        autoLoopWasRunning: this.autoLoopRunning,
+        maxConcurrency: this.config?.maxConcurrency ?? 3,
+        projectPath,
+        runningFeatureIds: Array.from(this.runningFeatures.keys()),
+        savedAt: new Date().toISOString(),
+      };
+      await secureFs.writeFile(statePath, JSON.stringify(state, null, 2), 'utf-8');
+      logger.info(`Saved execution state: ${state.runningFeatureIds.length} running features`);
+    } catch (error) {
+      logger.error('Failed to save execution state:', error);
+    }
+  }
+
+  /**
+   * Load execution state from disk
+   */
+  private async loadExecutionState(projectPath: string): Promise<ExecutionState> {
+    try {
+      const statePath = getExecutionStatePath(projectPath);
+      const content = (await secureFs.readFile(statePath, 'utf-8')) as string;
+      const state = JSON.parse(content) as ExecutionState;
+      return state;
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== 'ENOENT') {
+        logger.error('Failed to load execution state:', error);
+      }
+      return DEFAULT_EXECUTION_STATE;
+    }
+  }
+
+  /**
+   * Clear execution state (called on successful shutdown or when auto-loop stops)
+   */
+  private async clearExecutionState(projectPath: string): Promise<void> {
+    try {
+      const statePath = getExecutionStatePath(projectPath);
+      await secureFs.unlink(statePath);
+      logger.info('Cleared execution state');
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== 'ENOENT') {
+        logger.error('Failed to clear execution state:', error);
+      }
+    }
+  }
+
+  /**
+   * Check for and resume interrupted features after server restart
+   * This should be called during server initialization
+   */
+  async resumeInterruptedFeatures(projectPath: string): Promise<void> {
+    logger.info('Checking for interrupted features to resume...');
+
+    // Load all features and find those that were interrupted
+    const featuresDir = getFeaturesDir(projectPath);
+
+    try {
+      const entries = await secureFs.readdir(featuresDir, { withFileTypes: true });
+      const interruptedFeatures: Feature[] = [];
+
+      for (const entry of entries) {
+        if (entry.isDirectory()) {
+          const featurePath = path.join(featuresDir, entry.name, 'feature.json');
+          try {
+            const data = (await secureFs.readFile(featurePath, 'utf-8')) as string;
+            const feature = JSON.parse(data) as Feature;
+
+            // Check if feature was interrupted (in_progress or pipeline_*)
+            if (
+              feature.status === 'in_progress' ||
+              (feature.status && feature.status.startsWith('pipeline_'))
+            ) {
+              // Verify it has existing context (agent-output.md)
+              const featureDir = getFeatureDir(projectPath, feature.id);
+              const contextPath = path.join(featureDir, 'agent-output.md');
+              try {
+                await secureFs.access(contextPath);
+                interruptedFeatures.push(feature);
+                logger.info(
+                  `Found interrupted feature: ${feature.id} (${feature.title}) - status: ${feature.status}`
+                );
+              } catch {
+                // No context file, skip this feature - it will be restarted fresh
+                logger.info(`Interrupted feature ${feature.id} has no context, will restart fresh`);
+              }
+            }
+          } catch {
+            // Skip invalid features
+          }
+        }
+      }
+
+      if (interruptedFeatures.length === 0) {
+        logger.info('No interrupted features found');
+        return;
+      }
+
+      logger.info(`Found ${interruptedFeatures.length} interrupted feature(s) to resume`);
+
+      // Emit event to notify UI
+      this.emitAutoModeEvent('auto_mode_resuming_features', {
+        message: `Resuming ${interruptedFeatures.length} interrupted feature(s) after server restart`,
+        projectPath,
+        featureIds: interruptedFeatures.map((f) => f.id),
+        features: interruptedFeatures.map((f) => ({
+          id: f.id,
+          title: f.title,
+          status: f.status,
+        })),
+      });
+
+      // Resume each interrupted feature
+      for (const feature of interruptedFeatures) {
+        try {
+          logger.info(`Resuming feature: ${feature.id} (${feature.title})`);
+          // Use resumeFeature which will detect the existing context and continue
+          await this.resumeFeature(projectPath, feature.id, true);
+        } catch (error) {
+          logger.error(`Failed to resume feature ${feature.id}:`, error);
+          // Continue with other features
+        }
+      }
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code === 'ENOENT') {
+        logger.info('No features directory found, nothing to resume');
+      } else {
+        logger.error('Error checking for interrupted features:', error);
+      }
+    }
+  }
+
   /**
    * Extract and record learnings from a completed feature
    * Uses a quick Claude call to identify important decisions and patterns

apps/server/src/services/claude-usage-service.ts

@@ -2,6 +2,7 @@ import { spawn } from 'child_process';
 import * as os from 'os';
 import * as pty from 'node-pty';
 import { ClaudeUsage } from '../routes/claude/types.js';
+import { createLogger } from '@automaker/utils';
 
 /**
  * Claude Usage Service
@@ -14,6 +15,8 @@ import { ClaudeUsage } from '../routes/claude/types.js';
  * - macOS: Uses 'expect' command for PTY
  * - Windows/Linux: Uses node-pty for PTY
  */
+const logger = createLogger('ClaudeUsage');
+
 export class ClaudeUsageService {
   private claudeBinary = 'claude';
   private timeout = 30000; // 30 second timeout
@@ -164,21 +167,40 @@ export class ClaudeUsageService {
       const shell = this.isWindows ? 'cmd.exe' : '/bin/sh';
       const args = this.isWindows ? ['/c', 'claude', '/usage'] : ['-c', 'claude /usage'];
 
-      const ptyProcess = pty.spawn(shell, args, {
-        name: 'xterm-256color',
-        cols: 120,
-        rows: 30,
-        cwd: workingDirectory,
-        env: {
-          ...process.env,
-          TERM: 'xterm-256color',
-        } as Record<string, string>,
-      });
+      let ptyProcess: any = null;
+
+      try {
+        ptyProcess = pty.spawn(shell, args, {
+          name: 'xterm-256color',
+          cols: 120,
+          rows: 30,
+          cwd: workingDirectory,
+          env: {
+            ...process.env,
+            TERM: 'xterm-256color',
+          } as Record<string, string>,
+        });
+      } catch (spawnError) {
+        // pty.spawn() can throw synchronously if the native module fails to load
+        // or if PTY is not available in the current environment (e.g., containers without /dev/pts)
+        const errorMessage = spawnError instanceof Error ? spawnError.message : String(spawnError);
+        logger.error('[executeClaudeUsageCommandPty] Failed to spawn PTY:', errorMessage);
+
+        // Return a user-friendly error instead of crashing
+        reject(
+          new Error(
+            `Unable to access terminal: ${errorMessage}. Claude CLI may not be available or PTY support is limited in this environment.`
+          )
+        );
+        return;
+      }
 
       const timeoutId = setTimeout(() => {
         if (!settled) {
           settled = true;
-          ptyProcess.kill();
+          if (ptyProcess && !ptyProcess.killed) {
+            ptyProcess.kill();
+          }
           // Don't fail if we have data - return it instead
           if (output.includes('Current session')) {
             resolve(output);
@@ -188,7 +210,7 @@ export class ClaudeUsageService {
         }
       }, this.timeout);
 
-      ptyProcess.onData((data) => {
+      ptyProcess.onData((data: string) => {
         output += data;
 
         // Check if we've seen the usage data (look for "Current session")
@@ -196,12 +218,12 @@ export class ClaudeUsageService {
           hasSeenUsageData = true;
           // Wait for full output, then send escape to exit
           setTimeout(() => {
-            if (!settled) {
+            if (!settled && ptyProcess && !ptyProcess.killed) {
               ptyProcess.write('\x1b'); // Send escape key
 
               // Fallback: if ESC doesn't exit (Linux), use SIGTERM after 2s
               setTimeout(() => {
-                if (!settled) {
+                if (!settled && ptyProcess && !ptyProcess.killed) {
                   ptyProcess.kill('SIGTERM');
                 }
               }, 2000);
@@ -212,14 +234,14 @@ export class ClaudeUsageService {
         // Fallback: if we see "Esc to cancel" but haven't seen usage data yet
         if (!hasSeenUsageData && output.includes('Esc to cancel')) {
           setTimeout(() => {
-            if (!settled) {
+            if (!settled && ptyProcess && !ptyProcess.killed) {
               ptyProcess.write('\x1b'); // Send escape key
             }
           }, 3000);
         }
       });
 
-      ptyProcess.onExit(({ exitCode }) => {
+      ptyProcess.onExit(({ exitCode }: { exitCode: number }) => {
         clearTimeout(timeoutId);
         if (settled) return;
         settled = true;

apps/server/src/services/feature-loader.ts

@@ -308,13 +308,15 @@ export class FeatureLoader {
    * @param updates - Partial feature updates
    * @param descriptionHistorySource - Source of description change ('enhance' or 'edit')
    * @param enhancementMode - Enhancement mode if source is 'enhance'
+   * @param preEnhancementDescription - Description before enhancement (for restoring original)
    */
   async update(
     projectPath: string,
     featureId: string,
     updates: Partial<Feature>,
     descriptionHistorySource?: 'enhance' | 'edit',
-    enhancementMode?: 'improve' | 'technical' | 'simplify' | 'acceptance'
+    enhancementMode?: 'improve' | 'technical' | 'simplify' | 'acceptance' | 'ux-reviewer',
+    preEnhancementDescription?: string
   ): Promise<Feature> {
     const feature = await this.get(projectPath, featureId);
     if (!feature) {
@@ -338,9 +340,31 @@ export class FeatureLoader {
       updates.description !== feature.description &&
       updates.description.trim()
     ) {
+      const timestamp = new Date().toISOString();
+
+      // If this is an enhancement and we have the pre-enhancement description,
+      // add the original text to history first (so user can restore to it)
+      if (
+        descriptionHistorySource === 'enhance' &&
+        preEnhancementDescription &&
+        preEnhancementDescription.trim()
+      ) {
+        // Check if this pre-enhancement text is different from the last history entry
+        const lastEntry = updatedHistory[updatedHistory.length - 1];
+        if (!lastEntry || lastEntry.description !== preEnhancementDescription) {
+          const preEnhanceEntry: DescriptionHistoryEntry = {
+            description: preEnhancementDescription,
+            timestamp,
+            source: updatedHistory.length === 0 ? 'initial' : 'edit',
+          };
+          updatedHistory = [...updatedHistory, preEnhanceEntry];
+        }
+      }
+
+      // Add the new/enhanced description to history
       const historyEntry: DescriptionHistoryEntry = {
         description: updates.description,
-        timestamp: new Date().toISOString(),
+        timestamp,
         source: descriptionHistorySource || 'edit',
         ...(descriptionHistorySource === 'enhance' && enhancementMode ? { enhancementMode } : {}),
       };