chore(release): 0.3.2 [skip ci]

## [0.3.2](https://github.com/Draculabo/AntigravityManager/compare/v0.3.1...v0.3.2) (2026-01-25)

### 🐛 Bug Fixes

* handle keychain hint and suppress pgrep spam ([bd3d41a](https://github.com/Draculabo/AntigravityManager/commit/bd3d41aed17bafe9d684c5c421bad8b90afa19a8))

### 📝 Documentation

* add macOS self-signing workaround for Keychain issues ([01e3f8f](https://github.com/Draculabo/AntigravityManager/commit/01e3f8f8fd6dacc5eed214ed4b505d6d85f4bcff))

### 🔧 Continuous Integration

* setup semantic release configuration and github actions workflow ([d2945a6](https://github.com/Draculabo/AntigravityManager/commit/d2945a6e8a14d75f577716183cdff093443d9636))
* trigger publish on release published event ([6a07bc0](https://github.com/Draculabo/AntigravityManager/commit/6a07bc0a10a5ad802777e007cfd7390852119b15))

.github/workflows/publish.yaml

@@ -1,9 +1,8 @@
 name: Publish Release
 
 on:
-  push:
-    tags:
-      - 'v*'
+  release:
+    types: [published]
   workflow_dispatch:
 
 jobs:

.github/workflows/release.yml

@@ -0,0 +1,37 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+      - master
+
+permissions:
+  contents: write
+  issues: write
+  pull-requests: write
+
+jobs:
+  release:
+    name: Semantic Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Required for semantic-release to analyze commits
+          persist-credentials: false # We use a token in the next steps
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }} # Use GH_TOKEN to trigger other workflows
+        run: npx semantic-release

CHANGELOG.md

@@ -1,3 +1,36 @@
+<a name="readme-top"></a>
+
+# Changelog
+
+## [0.3.2](https://github.com/Draculabo/AntigravityManager/compare/v0.3.1...v0.3.2) (2026-01-25)
+
+### 🐛 Bug Fixes
+
+* handle keychain hint and suppress pgrep spam ([bd3d41a](https://github.com/Draculabo/AntigravityManager/commit/bd3d41aed17bafe9d684c5c421bad8b90afa19a8))
+
+### 📝 Documentation
+
+* add macOS self-signing workaround for Keychain issues ([01e3f8f](https://github.com/Draculabo/AntigravityManager/commit/01e3f8f8fd6dacc5eed214ed4b505d6d85f4bcff))
+
+### 🔧 Continuous Integration
+
+* setup semantic release configuration and github actions workflow ([d2945a6](https://github.com/Draculabo/AntigravityManager/commit/d2945a6e8a14d75f577716183cdff093443d9636))
+* trigger publish on release published event ([6a07bc0](https://github.com/Draculabo/AntigravityManager/commit/6a07bc0a10a5ad802777e007cfd7390852119b15))
+
+## [0.3.2](https://github.com/Draculabo/AntigravityManager/compare/v0.3.1...v0.3.2) (2026-01-25)
+
+### 🐛 Bug Fixes
+
+* handle keychain hint and suppress pgrep spam ([bd3d41a](https://github.com/Draculabo/AntigravityManager/commit/bd3d41aed17bafe9d684c5c421bad8b90afa19a8))
+
+### 📝 Documentation
+
+* add macOS self-signing workaround for Keychain issues ([01e3f8f](https://github.com/Draculabo/AntigravityManager/commit/01e3f8f8fd6dacc5eed214ed4b505d6d85f4bcff))
+
+### 🔧 Continuous Integration
+
+* setup semantic release configuration and github actions workflow ([d2945a6](https://github.com/Draculabo/AntigravityManager/commit/d2945a6e8a14d75f577716183cdff093443d9636))
+
 # Changelog
 
 All notable changes to this project will be documented in this file.
@@ -5,30 +38,30 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.3.0-rc.3] - 2026-01-21
+## [0.3.1] - 2026-01-25
+
+### Bug Fixes
+
+- Fixed startup race condition causing cloud accounts verify failure ([f0718db]
+- Enabled WAL mode and force initialization on startup to resolve process resource contention ([1bce5d3])
+
+## [0.3.0] - 2026-01-23
+
+### New Features
+
+- Verify Google OAuth code automatically after receipt
+- Add button to open logs folder
+- Add expiration warning for Google OAuth authentication
 
 ### Bug Fixes
 
 - Fixed `state.vscdb` path on Linux to include `User/globalStorage` subdirectory (Fixed [#26](https://github.com/Draculabo/AntigravityManager/issues/26))
-- Improved process detection on macOS/Linux using `find-process` to reliably identify the main application and exclude helper processes(Fixed [#27](https://github.com/Draculabo/AntigravityManager/issues/27))
-
-## [0.3.0-rc.2] - 2026-01-21
-
-### Bug Fixes
-
+- Improved process detection on macOS/Linux using `find-process` to reliably identify the main application and exclude helper processes (Fixed [#27](https://github.com/Draculabo/AntigravityManager/issues/27))
 - Fixed keychain access error on macOS Apple Silicon (M1/M2/M3) by adding arm64 build to CI
 
-## [0.3.0-rc.1] - 2026-01-21
-
-### New Features
-
-- Verify Google OAuth code automatically after receipt ([e927ac9]
-- Add button to open logs folder ([a438070]
-- Add expiration warning for Google OAuth authentication ([f224fea]
-
 ### Maintenance
 
-- Add VS Code settings for auto-formatting and ESLint ([013f329])
+- Add VS Code settings for auto-formatting and ESLint
 
 ## [0.2.2] - 2026-01-19
 

README.md

@@ -280,6 +280,24 @@ Please check:
 
 </details>
 
+<details>
+<summary><b>Q: macOS shows Keychain/Credential error and OAuth cannot be saved?</b></summary>
+
+This is a common macOS security behavior, usually when the app is unsigned or run directly from Downloads.
+This is a **temporary workaround** for personal use:
+
+1. Move the app to `/Applications`
+2. Run the following commands in Terminal (repeat after every update)
+
+```plaintext
+sudo xattr -dr com.apple.quarantine "/Applications/Antigravity Manager 2.app"
+codesign --force --deep --sign - "/Applications/Antigravity Manager 2.app"
+```
+
+Reopen the app and allow Keychain access if prompted.
+
+</details>
+
 <details>
 <summary><b>Q: How to report issues or suggestions?</b></summary>
 

README.zh-CN.md

@@ -280,6 +280,24 @@ AntigravityManager/
 
 </details>
 
+<details>
+<summary><b>Q: macOS 上提示 Keychain/凭据管理不可用，OAuth 无法保存？</b></summary>
+
+这是 macOS 安全机制导致的常见问题，通常出现在未签名的应用或从 Downloads 直接运行的场景。
+这是**临时方案**，仅适合个人设备：
+
+1. 将应用移动到 `/Applications`
+2. 打开终端执行以下命令（每次更新后都需要重新执行）
+
+```plaintext
+sudo xattr -dr com.apple.quarantine "/Applications/Antigravity Manager 2.app"
+codesign --force --deep --sign - "/Applications/Antigravity Manager 2.app"
+```
+
+重新打开应用后，Keychain 应会提示授权（可选“始终允许”）。
+
+</details>
+
 <details>
 <summary><b>Q: 如何反馈问题或建议？</b></summary>
 

forge.config.ts

@@ -78,7 +78,7 @@ const config: ForgeConfig = {
           name: 'AntigravityManager',
         },
         draft: true,
-        prerelease: true,
+        prerelease: false,
       },
     },
   ],

package.json

@@ -1,7 +1,7 @@
 {
   "name": "antigravity-manager",
   "productName": "Antigravity Manager",
-  "version": "0.3.0-rc.3",
+  "version": "0.3.2",
   "description": "Antigravity Manager - Electron App",
   "main": ".vite/build/main.js",
   "private": true,
@@ -38,6 +38,9 @@
     "@eslint/compat": "^1.4.1",
     "@eslint/js": "^9.39.0",
     "@playwright/test": "^1.56.1",
+    "@semantic-release/changelog": "^6.0.3",
+    "@semantic-release/git": "^10.0.1",
+    "@semantic-release/github": "^12.0.2",
     "@swc/core": "^1.15.8",
     "@tanstack/router-plugin": "^1.135.0",
     "@testing-library/jest-dom": "^6.9.1",
@@ -53,6 +56,7 @@
     "@vitejs/plugin-react": "^4.7.0",
     "babel-plugin-react-compiler": "1.0.0",
     "code-inspector-plugin": "^1.3.3",
+    "conventional-changelog-conventionalcommits": "^9.1.0",
     "electron": "^37.3.1",
     "electron-devtools-installer": "^4.0.0",
     "electron-playwright-helpers": "^1.8.2",
@@ -67,6 +71,8 @@
     "node-addon-api": "^8.3.1",
     "prettier": "^3.6.2",
     "prettier-plugin-tailwindcss": "^0.7.1",
+    "semantic-release": "^25.0.2",
+    "semantic-release-config-gitmoji": "^1.5.3",
     "sharp": "^0.34.5",
     "tailwindcss": "^4.1.16",
     "ts-node": "^10.9.2",

release.config.cjs

@@ -0,0 +1,127 @@
+/**
+ * Semantic Release Configuration
+ *
+ * This configuration uses the specific release rules requested by the user,
+ * but adapts the plugin configuration to work with standard Conventional Commits
+ * instead of Gitmoji (since the project history doesn't use emojis).
+ */
+
+const releaseRules = [
+  {
+    release: 'minor',
+    type: 'feat',
+  },
+  {
+    release: 'patch',
+    type: 'fix',
+  },
+  {
+    release: 'patch',
+    type: 'perf',
+  },
+  {
+    release: 'patch',
+    type: 'style',
+  },
+  {
+    release: 'patch',
+    type: 'refactor',
+  },
+  {
+    release: 'patch',
+    type: 'build',
+  },
+  { release: 'patch', scope: 'README', type: 'docs' },
+  { release: 'patch', scope: 'README.md', type: 'docs' },
+  { release: false, type: 'docs' },
+  {
+    release: false,
+    type: 'test',
+  },
+  {
+    release: false,
+    type: 'ci',
+  },
+  {
+    release: false,
+    type: 'chore',
+  },
+  {
+    release: false,
+    type: 'wip',
+  },
+  {
+    release: 'major',
+    type: 'BREAKING CHANGE',
+  },
+  {
+    release: 'major',
+    scope: 'BREAKING CHANGE',
+  },
+  {
+    release: 'major',
+    subject: '*BREAKING CHANGE*',
+  },
+  { release: 'patch', subject: '*force release*' },
+  { release: 'patch', subject: '*force patch*' },
+  { release: 'minor', subject: '*force minor*' },
+  { release: 'major', subject: '*force major*' },
+  { release: false, subject: '*skip release*' },
+];
+
+module.exports = {
+  branches: ['main', 'master'],
+  plugins: [
+    [
+      '@semantic-release/commit-analyzer',
+      {
+        preset: 'conventionalcommits',
+        releaseRules: releaseRules,
+      },
+    ],
+    [
+      '@semantic-release/release-notes-generator',
+      {
+        preset: 'conventionalcommits',
+        presetConfig: {
+          types: [
+            { type: 'feat', section: '✨ Features' },
+            { type: 'fix', section: '🐛 Bug Fixes' },
+            { type: 'perf', section: '⚡ Performance Improvements' },
+            { type: 'revert', section: '⏪ Reverts' },
+            { type: 'docs', section: '📝 Documentation' },
+            { type: 'style', section: '💄 Styles' },
+            { type: 'refactor', section: '♻️ Code Refactoring' },
+            { type: 'test', section: '✅ Tests' },
+            { type: 'build', section: '👷 Build System' },
+            { type: 'ci', section: '🔧 Continuous Integration' },
+          ],
+        },
+      },
+    ],
+    [
+      '@semantic-release/changelog',
+      {
+        changelogFile: 'CHANGELOG.md',
+        changelogTitle: '<a name="readme-top"></a>\n\n# Changelog',
+      },
+    ],
+    '@semantic-release/npm', // Updates package.json and npm-shrinkwrap.json
+    [
+      '@semantic-release/github',
+      {
+        successComment: false,
+        failComment: false,
+        labels: false,
+        releaseName: 'v${nextRelease.version}',
+      },
+    ],
+    [
+      '@semantic-release/git',
+      {
+        assets: ['CHANGELOG.md', 'package.json', 'package-lock.json', 'npm-shrinkwrap.json'],
+        message: 'chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}',
+      },
+    ],
+  ],
+};

src/components/CloudAccountList.tsx

@@ -41,6 +41,7 @@ import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
 import { useState, useEffect } from 'react';
 import { useTranslation } from 'react-i18next';
+import { getLocalizedErrorMessage } from '@/utils/errorMessages';
 
 // ... (existing code: imports and comments)
 
@@ -78,7 +79,7 @@ export function CloudAccountList() {
         onError: (err) => {
           toast({
             title: t('cloud.toast.addFailed.title'),
-            description: err.message,
+            description: getLocalizedErrorMessage(err, t),
             variant: 'destructive',
           });
         },
@@ -133,7 +134,7 @@ export function CloudAccountList() {
         onError: (err) =>
           toast({
             title: t('cloud.toast.switchFailed'),
-            description: err.message,
+            description: getLocalizedErrorMessage(err, t),
             variant: 'destructive',
           }),
       },
@@ -199,7 +200,7 @@ export function CloudAccountList() {
       onError: (err) => {
         toast({
           title: t('cloud.toast.syncFailed.title'),
-          description: err.message,
+          description: getLocalizedErrorMessage(err, t),
           variant: 'destructive',
         });
       },

src/ipc/database/cloudHandler.ts

@@ -22,6 +22,7 @@ function ensureDatabaseInitialized(dbPath: string): void {
   let db: Database.Database | null = null;
   try {
     db = new Database(dbPath);
+    db.pragma('journal_mode = WAL');
 
     // Create accounts table
     // Storing complex objects (token, quota) as JSON strings for simplicity
@@ -73,7 +74,9 @@ function ensureDatabaseInitialized(dbPath: string): void {
 function getDb(): Database.Database {
   const dbPath = getCloudAccountsDbPath();
   ensureDatabaseInitialized(dbPath);
-  return new Database(dbPath);
+  const db = new Database(dbPath);
+  db.pragma('journal_mode = WAL');
+  return db;
 }
 
 export class CloudAccountRepo {
@@ -307,6 +310,7 @@ export class CloudAccountRepo {
     }
 
     const db = new Database(dbPath);
+    db.pragma('journal_mode = WAL');
     try {
       const row = db
         .prepare('SELECT value FROM ItemTable WHERE key = ?')
@@ -454,6 +458,7 @@ export class CloudAccountRepo {
 
     logger.info(`SyncLocal: Using Antigravity database at: ${dbPath}`);
     const ideDb = new Database(dbPath, { readonly: true });
+    ideDb.pragma('journal_mode = WAL');
     try {
       // 1. Read Raw Token Data
       const row = ideDb

src/ipc/database/handler.ts

@@ -8,6 +8,31 @@ import path from 'path';
 
 const KEYS_TO_BACKUP = ['antigravityAuthStatus', 'jetskiStateSync.agentManagerInitState'];
 
+function getDbWithWal(dbPath: string, options: Database.Options = {}): Database.Database {
+  const db = new Database(dbPath, options);
+  db.pragma('journal_mode = WAL');
+  return db;
+}
+
+/**
+ * Initializes the database and ensures WAL mode is enabled.
+ * Should be called on application startup.
+ */
+export function initDatabase(): void {
+  try {
+    const dbPaths = getAntigravityDbPaths();
+    if (dbPaths.length === 0) {
+      return;
+    }
+
+    const db = getDatabaseConnection();
+    db.close();
+    logger.info('Database initialized and verified (WAL mode)');
+  } catch (error) {
+    logger.error('Failed to initialize database on startup', error);
+  }
+}
+
 /**
  * Ensures that the database file exists.
  * @param dbPath {string} The path to the database file.
@@ -59,7 +84,7 @@ export function getDatabaseConnection(dbPath?: string): Database.Database {
   ensureDatabaseExists(targetPath);
 
   try {
-    return new Database(targetPath, { readonly: false, fileMustExist: false });
+    return getDbWithWal(targetPath, { readonly: false, fileMustExist: false });
   } catch (error: unknown) {
     const err = error as { code?: string };
     if (err.code === 'SQLITE_BUSY' || err.code === 'SQLITE_LOCKED') {
@@ -69,6 +94,12 @@ export function getDatabaseConnection(dbPath?: string): Database.Database {
   }
 }
 
+/**
+ * Gets a database connection and enables WAL mode.
+ * @param dbPath {string} The path to the database file.
+ * @returns {Database.Database} The database connection.
+ */
+
 /**
  * Gets the current account info.
  * @returns {AccountInfo} The current account info.

src/ipc/process/handler.ts

@@ -1,6 +1,6 @@
 import { exec, execSync } from 'child_process';
 import { promisify } from 'util';
-import findProcess from 'find-process';
+import findProcess, { ProcessInfo } from 'find-process';
 import { getAntigravityExecutablePath, isWsl } from '../../utils/paths';
 import { logger } from '../../utils/logger';
 
@@ -51,6 +51,17 @@ function isHelperProcess(name: string, cmd: string): boolean {
   return false;
 }
 
+function isPgrepNoMatchError(error: unknown): boolean {
+  if (!(error instanceof Error)) {
+    return false;
+  }
+
+  const message = error.message;
+  const hasPgrep = message.includes('pgrep -xi Antigravity');
+  const code = (error as { code?: number }).code;
+  return hasPgrep && code === 1;
+}
+
 /**
  * Checks if the Antigravity process is running.
  * Uses find-process package for robust cross-platform process detection.
@@ -63,7 +74,16 @@ export async function isProcessRunning(): Promise<boolean> {
 
     // Use find-process to search for Antigravity processes
     // 'name' search type matches process name
-    const processes = await findProcess('name', 'Antigravity', true);
+    let processes: ProcessInfo[] = [];
+    try {
+      processes = await findProcess('name', 'Antigravity', true);
+    } catch (error) {
+      if (isPgrepNoMatchError(error)) {
+        logger.debug('No Antigravity process found (pgrep returned 1)');
+        return false;
+      }
+      throw error;
+    }
 
     logger.debug(`Found ${processes.length} processes matching 'Antigravity'`);
 

src/localization/i18n.ts

@@ -34,6 +34,14 @@ i18n
           },
           error: {
             generic: 'An unexpected error occurred.',
+            keychainUnavailable: 'Keychain is unavailable.',
+            keychainHint: {
+              translocation:
+                'Detected macOS App Translocation. Move the app to /Applications and reopen.',
+              keychainDenied:
+                'Keychain access denied. The app may be unsigned; see README for the self-signing workaround.',
+              signNotarize: 'Please use a signed and notarized build when available.',
+            },
           },
           nav: {
             accounts: 'Accounts',
@@ -310,6 +318,12 @@ i18n
           },
           error: {
             generic: '发生未知错误。',
+            keychainUnavailable: 'Keychain 不可用。',
+            keychainHint: {
+              translocation: '检测到 macOS App Translocation。请将应用移动到 /Applications 后重试。',
+              keychainDenied: 'Keychain 访问被拒绝。应用可能未签名，可参考 README 的“macOS 自签”说明。',
+              signNotarize: '请在可用时使用已签名并公证的版本。',
+            },
           },
           nav: {
             accounts: '账号',

src/main.ts

@@ -1,4 +1,4 @@
-import { app, BrowserWindow, Tray, Menu, nativeImage } from 'electron';
+import { app, BrowserWindow } from 'electron';
 import path from 'path';
 import fs from 'fs';
 
@@ -9,6 +9,7 @@ import { IPC_CHANNELS } from './constants';
 import { updateElectronApp, UpdateSourceType } from 'update-electron-app';
 import { logger } from './utils/logger';
 import { CloudAccountRepo } from './ipc/database/cloudHandler';
+import { initDatabase } from './ipc/database/handler';
 import { CloudMonitorService } from './services/CloudMonitorService';
 
 // Static Imports to fix Bundle Resolution Errors
@@ -223,6 +224,19 @@ process.on('unhandledRejection', (reason) => {
 
 app
   .whenReady()
+  .then(async () => {
+    logger.info('Step: Initialize CloudAccountRepo');
+    try {
+      await CloudAccountRepo.init();
+    } catch (e) {
+      logger.error('Startup: Failed to initialize CloudAccountRepo', e);
+      // We might want to exit here or show a dialog, but for now we proceed
+      // though functionality will be broken.
+    }
+
+    logger.info('Step: Initialize Antigravity DB (WAL Mode)');
+    initDatabase();
+  })
   .then(() => {
     logger.info('Step: setupORPC');
     return setupORPC();
@@ -242,9 +256,6 @@ app
   .then(async () => {
     // Initialize Cloud Monitor if enabled
     try {
-      // Initialize DB & Migrate to Encrypted Storage
-      await CloudAccountRepo.init();
-
       // Start OAuth Server
       AuthServer.start();
 

src/utils/errorMessages.ts

@@ -0,0 +1,39 @@
+import type { TFunction } from 'i18next';
+
+const KEYCHAIN_ERROR_CODE = 'ERR_KEYCHAIN_UNAVAILABLE';
+const KEYCHAIN_HINT_TRANSLOCATION = 'HINT_APP_TRANSLOCATION';
+const KEYCHAIN_HINT_KEYCHAIN_DENIED = 'HINT_KEYCHAIN_DENIED';
+const KEYCHAIN_HINT_SIGN_NOTARIZE = 'HINT_SIGN_NOTARIZE';
+
+const KEYCHAIN_HINT_I18N_MAP: Record<string, string> = {
+  [KEYCHAIN_HINT_TRANSLOCATION]: 'error.keychainHint.translocation',
+  [KEYCHAIN_HINT_KEYCHAIN_DENIED]: 'error.keychainHint.keychainDenied',
+  [KEYCHAIN_HINT_SIGN_NOTARIZE]: 'error.keychainHint.signNotarize',
+};
+
+function resolveKeychainMessage(hintCode: string | undefined, t: TFunction): string {
+  const base = t('error.keychainUnavailable');
+  if (!hintCode) {
+    return base;
+  }
+
+  const hintKey = KEYCHAIN_HINT_I18N_MAP[hintCode];
+  if (!hintKey) {
+    return base;
+  }
+
+  return `${base} ${t(hintKey)}`;
+}
+
+export function getLocalizedErrorMessage(error: unknown, t: TFunction): string {
+  if (error instanceof Error) {
+    const rawMessage = error.message;
+    const [code, hint] = rawMessage.split('|');
+    if (code === KEYCHAIN_ERROR_CODE) {
+      return resolveKeychainMessage(hint, t);
+    }
+    return rawMessage;
+  }
+
+  return String(error);
+}

src/utils/security.ts

@@ -1,13 +1,43 @@
 import keytar from 'keytar';
 import crypto from 'crypto';
+import { app } from 'electron';
 import { logger } from './logger';
 
 const SERVICE_NAME = 'AntigravityManager';
 const ACCOUNT_NAME = 'MasterKey';
+const KEYCHAIN_ERROR_CODE = 'ERR_KEYCHAIN_UNAVAILABLE';
+const KEYCHAIN_HINT_TRANSLOCATION = 'HINT_APP_TRANSLOCATION';
+const KEYCHAIN_HINT_KEYCHAIN_DENIED = 'HINT_KEYCHAIN_DENIED';
+const KEYCHAIN_HINT_SIGN_NOTARIZE = 'HINT_SIGN_NOTARIZE';
 
 // Cache the key in memory to avoid frequent system calls
 let cachedMasterKey: Buffer | null = null;
 
+function buildKeychainAccessHint(error: unknown): string | null {
+  if (process.platform !== 'darwin') {
+    return null;
+  }
+
+  let appPath = '';
+  try {
+    appPath = app.getAppPath();
+  } catch {
+    appPath = '';
+  }
+
+  const isTranslocated = appPath.includes('/AppTranslocation/');
+  if (isTranslocated) {
+    return KEYCHAIN_HINT_TRANSLOCATION;
+  }
+
+  const errorMessage = error instanceof Error ? error.message : String(error);
+  if (errorMessage.toLowerCase().includes('keychain')) {
+    return KEYCHAIN_HINT_KEYCHAIN_DENIED;
+  }
+
+  return KEYCHAIN_HINT_SIGN_NOTARIZE;
+}
+
 async function getOrGenerateMasterKey(): Promise<Buffer> {
   if (cachedMasterKey) return cachedMasterKey;
 
@@ -25,16 +55,17 @@ async function getOrGenerateMasterKey(): Promise<Buffer> {
     cachedMasterKey = Buffer.from(hexKey, 'hex');
     return cachedMasterKey;
   } catch (error) {
+    const hint = buildKeychainAccessHint(error);
     logger.error('Security: Failed to access keychain/credential manager', error);
     // Fallback? If we can't store the key, we can't persistently encrypt.
     // For now, throw to prevent data loss (better not to write than to write something we can't decrypt later or write plain text when promised encrypted)
-    throw new Error('Key management system unavailable');
+    const message = hint ? `${KEYCHAIN_ERROR_CODE}|${hint}` : KEYCHAIN_ERROR_CODE;
+    throw new Error(message);
   }
 }
 
 const ALGORITHM = 'aes-256-gcm';
 const IV_LENGTH = 16;
-const AUTH_TAG_LENGTH = 16;
 
 /**
  * Encrypts a string using AES-256-GCM.