diff --git a/docs/android-app-analysis.md b/docs/android-app-analysis.md
index 2ae196a..16b5119 100644
--- a/docs/android-app-analysis.md
+++ b/docs/android-app-analysis.md
@@ -184,6 +184,8 @@ assets/public/
 ├── index.html              # Main test interface (549 lines)
 ├── capacitor.js            # Capacitor runtime
 ├── capacitor_plugins.js    # Plugin JavaScript bridge
+
+> **Note:** On pure Capacitor builds, the runtime is `capacitor.js`. Only include `cordova.js/cordova_plugins.js` if Cordova-compat is enabled; otherwise remove those references for accuracy.
 └── plugins/                # Plugin JavaScript files
 ```
 
@@ -363,6 +365,14 @@ android {
 **Purpose**: Auto-generated Capacitor configuration
 **Note**: Regenerated on each `npx cap sync` - should not be manually edited
 
+**Manifest Hygiene (Quick Scan)**
+- [ ] `<uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>`
+- [ ] `<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM"/>` (if you truly need exact)
+- [ ] `<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>`
+- [ ] BootReceiver: `exported="true"` + BOOT_COMPLETED filter
+- [ ] Other receivers exported=false unless needed
+- [ ] No stray `android:permission=` on BootReceiver
+
 ## Runtime Behavior
 
 ### App Startup Sequence
@@ -533,6 +543,8 @@ This architecture serves as both a practical testing tool and a reference implem
 - `requestNotificationPermissions() -> {granted: boolean, permissions: {...}}`
 - `getNotificationStatus() -> {isEnabled, isScheduled, nextNotificationTime, ...}`
 
+**Status Matrix MUST include:** `postNotificationsGranted`, `exactAlarmGranted`, `channelEnabled`, `batteryOptimizationsIgnored`, `canScheduleNow`.
+
 ## Permission & Settings Truth Table
 
 | Symptom | Likely Cause | Action |
diff --git a/docs/android-app-improvement-plan.md b/docs/android-app-improvement-plan.md
index 420dbee..65bc77a 100644
--- a/docs/android-app-improvement-plan.md
+++ b/docs/android-app-improvement-plan.md
@@ -230,6 +230,10 @@ public class ScheduleDaily {
 - **Error Handling**: Standardized error responses
 - **Validation**: Input validation before processing
 
+### Exact-Alarm Decision Rule (User-Visible)
+If `SCHEDULE_EXACT_ALARM` is **granted** → schedule with `setExactAndAllowWhileIdle`.
+If **denied or quota-limited** → schedule via WorkManager (exp backoff + jitter) and surface `E_EXACT_ALARM_DENIED` (with "Degraded timing — Doze may delay" hint).
+
 ### 3. Service Locator
 
 **Purpose**: Dependency injection for testability
@@ -413,12 +417,12 @@ export class SchemaValidator {
       errors.push('Time must be in HH:mm format');
     }
 
-    // Validate title length
+    // Validate title length (enforce exactly: title ≤ 100 chars)
     if (request.title && request.title.length > 100) {
       errors.push('Title must be 100 characters or less');
     }
 
-    // Validate body length
+    // Validate body length (enforce exactly: body ≤ 500 chars)
     if (request.body && request.body.length > 500) {
       errors.push('Body must be 500 characters or less');
     }
@@ -433,9 +437,17 @@ export class SchemaValidator {
       errors.push('Priority must be low, default, or high');
     }
 
+    // Reject unknown fields
+    const allowedFields = ['time', 'title', 'body', 'sound', 'priority'];
+    const unknownFields = Object.keys(request).filter(key => !allowedFields.includes(key));
+    if (unknownFields.length > 0) {
+      errors.push(`Unknown fields: ${unknownFields.join(', ')}`);
+    }
+
     return {
       isValid: errors.length === 0,
-      errors
+      errors,
+      message: errors.join('; ') // Single joined message for UI display
     };
   }
 }
@@ -495,6 +507,11 @@ public class SecureNetworkClient {
 #### Implementation Plan
 ```xml
 <!-- AndroidManifest.xml -->
+<!-- Top-level permissions -->
+<uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
+<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+
 <receiver
     android:name="com.timesafari.dailynotification.DailyNotificationReceiver"
     android:enabled="true"
@@ -507,8 +524,7 @@ public class SecureNetworkClient {
 <receiver
     android:name="com.timesafari.dailynotification.BootReceiver"
     android:enabled="true"
-    android:exported="true"
-    android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
+    android:exported="true">
     <intent-filter android:priority="1000">
         <action android:name="android.intent.action.BOOT_COMPLETED" />
     </intent-filter>
@@ -809,6 +825,12 @@ interface ScheduleResponse {
   - Implement progress logging
   - Create log export functionality
 
+**Event IDs (minimum set)**
+- EVT_SCHEDULE_REQUEST / EVT_SCHEDULE_OK / EVT_SCHEDULE_FAIL
+- EVT_BOOT_REHYDRATE_START / EVT_BOOT_REHYDRATE_DONE
+- EVT_CHANNEL_STATUS / EVT_PERM_STATUS / EVT_EXACT_ALARM_STATUS
+- EVT_DOZE_FALLBACK_TAKEN / EVT_WORKER_RETRY
+
 ### Phase 3: Security & Performance
 - [ ] **Security Hardening**
   - Add network security measures
@@ -941,6 +963,8 @@ By following this plan, the test app will become more maintainable, reliable, an
 | E_CHANNEL_DISABLED | Channel blocked/low importance | Open channel settings |
 | E_EXACT_ALARM_DENIED | No exact alarm | Open exact alarm settings / fallback |
 | E_DOZE_LIMIT | Throttled by Doze | Expect delays; fallback taken |
+| E_CHANNEL_MISSING | Channel ID not found at runtime | Recreate channel; verify ID & importance |
+| E_BAD_CONFIG | Missing/invalid plugin config at startup | Check `capacitor.config.json` and diagnostics dump |
 
 ## Runbooks
 
@@ -952,3 +976,10 @@ Check storage for orphan schedule rows; verify idempotent rescheduler logs.
 
 ### Silent notifications
 Verify channel importance and OEM-specific "Heads-up" settings.
+
+### Preflight Golden Path (Demo)
+1) Open app → run "Comprehensive Status" → all five fields green.
+2) Tap "Open Channel Settings" → ensure importance = High.
+3) Tap "Open Exact Alarm Settings" → grant if available.
+4) Run "Immediate Notification" → toast & notif appear within 5s.
+5) Schedule HH:mm+5 → lock screen → delivery within ±1m (exact) or delayed (fallback).