diff --git a/modules/checklist.md b/modules/checklist.md
index 8a0f163..924d930 100644
--- a/modules/checklist.md
+++ b/modules/checklist.md
@@ -28,6 +28,26 @@ The enhanced checklist module provides asset tracking and accountability feature
 - View last known location in checklist
 - Track movement over time
 
+- **Time Window Monitoring**: Check-in with safety intervals (e.g., `checkin 60 Hunting in tree stand`)
+  - Tracks if users don't check in within expected timeframe
+  - Ideal for solo activities, remote work, or safety accountability
+  - Provides `get_overdue_checkins()` function for alert integration
+
+- **Approval Workflow**:
+  - `checklistapprove <id>` - Approve pending check-ins (admin)
+  - `checklistdeny <id>` - Deny/remove check-ins (admin)
+  - Support for approval-based workflows
+
+- **Enhanced Database Schema**:
+  - Added `approved` field for approval workflows
+  - Added `expected_checkin_interval` field for safety monitoring
+  - Automatic migration for existing databases
+
+#### New Commands:
+- `checklistapprove <id>` - Approve a check-in
+- `checklistdeny <id>` - Deny a check-in
+- Enhanced `checkin [interval] [note]` - Now supports interval parameter
+
 ## Configuration
 
 Add to your `config.ini`:
diff --git a/modules/inventory.md b/modules/inventory.md
index 2b4a4cc..4e7146a 100644
--- a/modules/inventory.md
+++ b/modules/inventory.md
@@ -33,6 +33,23 @@ The inventory module provides a complete point-of-sale (POS) system for mesh net
 - **Sales Reports**: Daily transaction summaries
 - **Best Sellers**: Most popular items
 
+**Cart System:**
+- `cartadd <name> <qty>` - Add to cart
+- `cartremove <name>` - Remove from cart
+- `cartlist` / `cart` - View cart
+- `cartbuy` / `cartsell [notes]` - Complete transaction
+- `cartclear` - Empty cart
+
+**Item Management:**
+- `itemadd <name> <price> <qty> [location]` - Add new item
+- `itemremove <name>` - Remove item
+- `itemreset <name> [price=X] [qty=Y]` - Update item
+- `itemsell <name> <qty> [notes]` - Quick sale
+- `itemreturn <transaction_id>` - Reverse transaction
+- `itemlist` - View all inventory
+- `itemstats` - Daily statistics
+
+
 ## Configuration
 
 Add to your `config.ini`: