diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index fa727f7..1e643d9 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -6,7 +6,7 @@
   },
   "metadata": {
     "description": "Project management plugins with Gitea and NetBox integrations",
-    "version": "5.0.0"
+    "version": "5.1.0"
   },
   "plugins": [
     {
@@ -75,8 +75,8 @@
     },
     {
       "name": "cmdb-assistant",
-      "version": "1.0.0",
-      "description": "NetBox CMDB integration for infrastructure management",
+      "version": "1.1.0",
+      "description": "NetBox CMDB integration with data quality validation and machine registration",
       "source": "./plugins/cmdb-assistant",
       "author": {
         "name": "Leo Miranda",
@@ -86,7 +86,7 @@
       "repository": "https://gitea.hotserv.cloud/personal-projects/leo-claude-mktplace.git",
       "mcpServers": ["./.mcp.json"],
       "category": "infrastructure",
-      "tags": ["cmdb", "netbox", "dcim", "ipam"],
+      "tags": ["cmdb", "netbox", "dcim", "ipam", "data-quality", "validation"],
       "license": "MIT"
     },
     {
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b7a3b0..f2685e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,45 @@ All notable changes to the Leo Claude Marketplace will be documented in this fil
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [Unreleased]
+
+### Added
+
+#### cmdb-assistant v1.1.0 - Data Quality Validation
+- **SessionStart Hook**: Tests NetBox API connectivity at session start
+  - Warns if VMs exist without site assignment
+  - Warns if devices exist without platform
+  - Non-blocking: displays warning, doesn't prevent work
+- **PreToolUse Hook**: Validates input parameters before VM/device operations
+  - Warns about missing site, tenant, platform
+  - Non-blocking: suggests best practices without blocking
+- **`/cmdb-audit` Command**: Comprehensive data quality analysis
+  - Scopes: all, vms, devices, naming, roles
+  - Identifies Critical/High/Medium/Low issues
+  - Provides prioritized remediation recommendations
+- **`/cmdb-register` Command**: Register current machine into NetBox
+  - Discovers system info: hostname, platform, hardware, network interfaces
+  - Discovers running apps: Docker containers, systemd services
+  - Creates device with interfaces, IPs, and sets primary IP
+  - Creates cluster and VMs for Docker containers
+- **`/cmdb-sync` Command**: Sync machine state with NetBox
+  - Compares current state with NetBox record
+  - Shows diff of changes (interfaces, IPs, containers)
+  - Updates with user confirmation
+  - Supports --full and --dry-run flags
+- **NetBox Best Practices Skill**: Reference documentation
+  - Dependency order for object creation
+  - Naming conventions (`{role}-{site}-{number}`, `{env}-{app}-{number}`)
+  - Role consolidation guidance
+  - Site/tenant/platform assignment requirements
+- **Agent Enhancement**: Updated cmdb-assistant agent with validation requirements
+  - Proactive suggestions for missing fields
+  - Naming convention checks
+  - Dependency order enforcement
+  - Duplicate prevention
+
+---
+
 ## [5.0.0] - 2026-01-26
 
 ### Added
diff --git a/README.md b/README.md
index 77a260b..5142d10 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Leo Claude Marketplace - v5.0.0
+# Leo Claude Marketplace - v5.1.0
 
 A collection of Claude Code plugins for project management, infrastructure automation, and development workflows.
 
diff --git a/plugins/cmdb-assistant/.claude-plugin/plugin.json b/plugins/cmdb-assistant/.claude-plugin/plugin.json
index 2b3c1e1..4105491 100644
--- a/plugins/cmdb-assistant/.claude-plugin/plugin.json
+++ b/plugins/cmdb-assistant/.claude-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "cmdb-assistant",
-  "version": "1.0.0",
-  "description": "NetBox CMDB integration for infrastructure management - query, create, update, and manage network devices, IP addresses, sites, and more",
+  "version": "1.1.0",
+  "description": "NetBox CMDB integration with data quality validation - query, create, update, and manage network devices, IP addresses, sites, and more with best practices enforcement",
   "author": {
     "name": "Leo Miranda",
     "email": "leobmiranda@gmail.com"
@@ -15,7 +15,9 @@
     "infrastructure",
     "network",
     "ipam",
-    "dcim"
+    "dcim",
+    "data-quality",
+    "validation"
   ],
   "commands": ["./commands/"],
   "mcpServers": ["./.mcp.json"]
diff --git a/plugins/cmdb-assistant/README.md b/plugins/cmdb-assistant/README.md
index 394e587..ea05bb5 100644
--- a/plugins/cmdb-assistant/README.md
+++ b/plugins/cmdb-assistant/README.md
@@ -2,6 +2,14 @@
 
 A Claude Code plugin for NetBox CMDB integration - query, create, update, and manage your network infrastructure directly from Claude Code.
 
+## What's New in v1.1.0
+
+- **Data Quality Validation**: Hooks for SessionStart and PreToolUse that check data quality and warn about missing fields
+- **Best Practices Skill**: Reference documentation for NetBox patterns (naming conventions, dependency order, role management)
+- **`/cmdb-audit`**: Analyze data quality across VMs, devices, naming conventions, and roles
+- **`/cmdb-register`**: Register the current machine into NetBox with all running applications (Docker containers, systemd services)
+- **`/cmdb-sync`**: Synchronize existing machine state with NetBox (detect drift, update with confirmation)
+
 ## Features
 
 - **Full CRUD Operations**: Create, read, update, and delete across all NetBox modules
@@ -9,6 +17,9 @@ A Claude Code plugin for NetBox CMDB integration - query, create, update, and ma
 - **IP Management**: Allocate IPs, manage prefixes, track VLANs
 - **Infrastructure Documentation**: Document servers, network devices, and connections
 - **Audit Trail**: Review changes and maintain infrastructure history
+- **Data Quality Validation**: Proactive checks for missing site, tenant, platform assignments
+- **Machine Registration**: Auto-discover and register servers with running applications
+- **Drift Detection**: Sync machine state and detect changes over time
 
 ## Installation
 
@@ -40,10 +51,14 @@ Add to your Claude Code plugins or marketplace configuration.
 
 | Command | Description |
 |---------|-------------|
+| `/initial-setup` | Interactive setup wizard for NetBox MCP server |
 | `/cmdb-search <query>` | Search for devices, IPs, sites, or any CMDB object |
 | `/cmdb-device <action>` | Manage network devices (list, create, update, delete) |
 | `/cmdb-ip <action>` | Manage IP addresses and prefixes |
 | `/cmdb-site <action>` | Manage sites and locations |
+| `/cmdb-audit [scope]` | Data quality analysis (all, vms, devices, naming, roles) |
+| `/cmdb-register` | Register current machine into NetBox with running apps |
+| `/cmdb-sync` | Sync machine state with NetBox (detect drift, update) |
 
 ## Agent
 
@@ -103,6 +118,15 @@ This plugin provides access to the full NetBox API:
 - **Wireless**: WLANs, Wireless Links
 - **Extras**: Tags, Custom Fields, Journal Entries, Audit Log
 
+## Hooks
+
+| Event | Purpose |
+|-------|---------|
+| `SessionStart` | Test NetBox connectivity, report data quality issues |
+| `PreToolUse` | Validate VM/device parameters before create/update |
+
+Hooks are **non-blocking** - they emit warnings but never prevent operations.
+
 ## Architecture
 
 ```
@@ -115,13 +139,23 @@ cmdb-assistant/
 │   ├── cmdb-search.md       # Search command
 │   ├── cmdb-device.md       # Device management
 │   ├── cmdb-ip.md           # IP management
-│   └── cmdb-site.md         # Site management
+│   ├── cmdb-site.md         # Site management
+│   ├── cmdb-audit.md        # Data quality audit (NEW)
+│   ├── cmdb-register.md     # Machine registration (NEW)
+│   └── cmdb-sync.md         # Machine sync (NEW)
+├── hooks/
+│   ├── hooks.json           # Hook configuration
+│   ├── startup-check.sh     # SessionStart validation
+│   └── validate-input.sh    # PreToolUse validation
+├── skills/
+│   └── netbox-patterns/
+│       └── SKILL.md         # NetBox best practices reference
 ├── agents/
 │   └── cmdb-assistant.md    # Main assistant agent
 └── README.md
 ```
 
-The plugin uses the shared NetBox MCP server at `../mcp-servers/netbox/`.
+The plugin uses the shared NetBox MCP server at `mcp-servers/netbox/`.
 
 ## Configuration
 
diff --git a/plugins/cmdb-assistant/agents/cmdb-assistant.md b/plugins/cmdb-assistant/agents/cmdb-assistant.md
index b216e15..b573958 100644
--- a/plugins/cmdb-assistant/agents/cmdb-assistant.md
+++ b/plugins/cmdb-assistant/agents/cmdb-assistant.md
@@ -76,3 +76,132 @@ When presenting data:
 - Suggest corrective actions
 - For permission errors, note what access is needed
 - For validation errors, explain required fields/formats
+
+## Data Quality Validation
+
+**IMPORTANT:** Load the `netbox-patterns` skill for best practice reference.
+
+Before ANY create or update operation, validate against NetBox best practices:
+
+### VM Operations
+
+**Required checks before `virt_create_vm` or `virt_update_vm`:**
+
+1. **Cluster/Site Assignment** - VMs must have either cluster or site
+2. **Tenant Assignment** - Recommend if not provided
+3. **Platform Assignment** - Recommend for OS tracking
+4. **Naming Convention** - Check against `{env}-{app}-{number}` pattern
+5. **Role Assignment** - Recommend appropriate role
+
+**If user provides no site/tenant, ASK:**
+
+> "This VM has no site or tenant assigned. NetBox best practices recommend:
+> - **Site**: For location-based queries and power budgeting
+> - **Tenant**: For resource isolation and ownership tracking
+>
+> Would you like me to:
+> 1. Assign to an existing site/tenant (list available)
+> 2. Create new site/tenant first
+> 3. Proceed without (not recommended for production use)"
+
+### Device Operations
+
+**Required checks before `dcim_create_device` or `dcim_update_device`:**
+
+1. **Site is REQUIRED** - Fail without it
+2. **Platform Assignment** - Recommend for OS tracking
+3. **Naming Convention** - Check against `{role}-{location}-{number}` pattern
+4. **Role Assignment** - Ensure appropriate role selected
+5. **After Creation** - Offer to set primary IP
+
+### Cluster Operations
+
+**Required checks before `virt_create_cluster`:**
+
+1. **Site Scope** - Recommend assigning to site
+2. **Cluster Type** - Ensure appropriate type selected
+3. **Device Association** - Recommend linking to host device
+
+### Role Management
+
+**Before creating a new device role:**
+
+1. List existing roles with `dcim_list_device_roles`
+2. Check if a more general role already exists
+3. Recommend role consolidation if >10 specific roles exist
+
+**Example guidance:**
+
+> "You're creating role 'nginx-web-server'. An existing 'web-server' role exists.
+> Consider using 'web-server' and tracking nginx via the platform field instead.
+> This reduces role fragmentation and improves maintainability."
+
+## Dependency Order Enforcement
+
+When creating multiple objects, follow this order:
+
+```
+1. Regions → Sites → Locations → Racks
+2. Tenant Groups → Tenants
+3. Manufacturers → Device Types
+4. Device Roles, Platforms
+5. Devices (with site, role, type)
+6. Clusters (with type, optional site)
+7. VMs (with cluster)
+8. Interfaces → IP Addresses → Primary IP assignment
+```
+
+**CRITICAL Rules:**
+- NEVER create a VM before its cluster exists
+- NEVER create a device before its site exists
+- NEVER create an interface before its device exists
+- NEVER create an IP before its interface exists (if assigning)
+
+## Naming Convention Enforcement
+
+When user provides a name, check against patterns:
+
+| Object Type | Pattern | Example |
+|-------------|---------|---------|
+| Device | `{role}-{site}-{number}` | `web-dc1-01` |
+| VM | `{env}-{app}-{number}` or `{prefix}_{service}` | `prod-api-01` |
+| Cluster | `{site}-{type}` | `dc1-vmware`, `home-docker` |
+| Prefix | Include purpose in description | "Production /24 for web tier" |
+
+**If name doesn't match patterns, warn:**
+
+> "The name 'HotServ' doesn't follow naming conventions.
+> Suggested: `prod-hotserv-01` or `hotserv-cloud-01`.
+> Consistent naming improves searchability and automation compatibility.
+> Proceed with original name? [Y/n]"
+
+## Duplicate Prevention
+
+Before creating objects, always check for existing duplicates:
+
+```
+# Before creating device
+dcim_list_devices name=<proposed-name>
+
+# Before creating VM
+virt_list_vms name=<proposed-name>
+
+# Before creating prefix
+ipam_list_prefixes prefix=<proposed-prefix>
+```
+
+If duplicate found, inform user and suggest update instead of create.
+
+## Available Commands
+
+Users can invoke these commands for structured workflows:
+
+| Command | Purpose |
+|---------|---------|
+| `/cmdb-search <query>` | Search across all CMDB objects |
+| `/cmdb-device <action>` | Device CRUD operations |
+| `/cmdb-ip <action>` | IP address and prefix management |
+| `/cmdb-site <action>` | Site and location management |
+| `/cmdb-audit [scope]` | Data quality analysis |
+| `/cmdb-register` | Register current machine |
+| `/cmdb-sync` | Sync machine state with NetBox |
diff --git a/plugins/cmdb-assistant/commands/cmdb-audit.md b/plugins/cmdb-assistant/commands/cmdb-audit.md
new file mode 100644
index 0000000..4cf9929
--- /dev/null
+++ b/plugins/cmdb-assistant/commands/cmdb-audit.md
@@ -0,0 +1,195 @@
+---
+description: Audit NetBox data quality and identify consistency issues
+---
+
+# CMDB Data Quality Audit
+
+Analyze NetBox data for quality issues and best practice violations.
+
+## Usage
+
+```
+/cmdb-audit [scope]
+```
+
+**Scopes:**
+- `all` (default) - Full audit across all categories
+- `vms` - Virtual machines only
+- `devices` - Physical devices only
+- `naming` - Naming convention analysis
+- `roles` - Role fragmentation analysis
+
+## Instructions
+
+You are a data quality auditor for NetBox. Your job is to identify consistency issues and best practice violations.
+
+**IMPORTANT:** Load the `netbox-patterns` skill for best practice reference.
+
+### Phase 1: Data Collection
+
+Run these MCP tool calls to gather data for analysis:
+
+```
+1. virt_list_vms (no filters - get all)
+2. dcim_list_devices (no filters - get all)
+3. virt_list_clusters (no filters)
+4. dcim_list_sites
+5. tenancy_list_tenants
+6. dcim_list_device_roles
+7. dcim_list_platforms
+```
+
+Store the results for analysis.
+
+### Phase 2: Quality Checks
+
+Analyze collected data for these issues by severity:
+
+#### CRITICAL Issues (must fix immediately)
+
+| Check | Detection |
+|-------|-----------|
+| VMs without cluster | `cluster` field is null AND `site` field is null |
+| Devices without site | `site` field is null |
+| Active devices without primary IP | `status=active` AND `primary_ip4` is null AND `primary_ip6` is null |
+
+#### HIGH Issues (should fix soon)
+
+| Check | Detection |
+|-------|-----------|
+| VMs without site | VM has no site (neither direct nor via cluster.site) |
+| VMs without tenant | `tenant` field is null |
+| Devices without platform | `platform` field is null |
+| Clusters not scoped to site | `site` field is null on cluster |
+| VMs without role | `role` field is null |
+
+#### MEDIUM Issues (plan to address)
+
+| Check | Detection |
+|-------|-----------|
+| Inconsistent naming | Names don't match patterns: devices=`{role}-{site}-{num}`, VMs=`{env}-{app}-{num}` |
+| Role fragmentation | More than 10 device roles with <3 assignments each |
+| Missing tags on production | Active resources without any tags |
+| Mixed naming separators | Some names use `_`, others use `-` |
+
+#### LOW Issues (informational)
+
+| Check | Detection |
+|-------|-----------|
+| Docker containers as VMs | Cluster type is "Docker Compose" - document this modeling choice |
+| VMs without description | `description` field is empty |
+| Sites without physical address | `physical_address` is empty |
+| Devices without serial | `serial` field is empty |
+
+### Phase 3: Naming Convention Analysis
+
+For naming scope, analyze patterns:
+
+1. **Extract naming patterns** from existing objects
+2. **Identify dominant patterns** (most common conventions)
+3. **Flag outliers** that don't match dominant patterns
+4. **Suggest standardization** based on best practices
+
+**Expected Patterns:**
+- Devices: `{role}-{location}-{number}` (e.g., `web-dc1-01`)
+- VMs: `{prefix}_{service}` or `{env}-{app}-{number}` (e.g., `prod-api-01`)
+- Clusters: `{site}-{type}` (e.g., `home-docker`)
+
+### Phase 4: Role Analysis
+
+For roles scope, analyze fragmentation:
+
+1. **List all device roles** with assignment counts
+2. **Identify single-use roles** (only 1 device/VM)
+3. **Identify similar roles** that could be consolidated
+4. **Suggest consolidation** based on patterns
+
+**Red Flags:**
+- More than 15 highly specific roles
+- Roles with technology in name (use platform instead)
+- Roles that duplicate functionality
+
+### Phase 5: Report Generation
+
+Present findings in this structure:
+
+```markdown
+## CMDB Data Quality Audit Report
+
+**Generated:** [timestamp]
+**Scope:** [scope parameter]
+
+### Summary
+
+| Metric | Count |
+|--------|-------|
+| Total VMs | X |
+| Total Devices | Y |
+| Total Clusters | Z |
+| **Total Issues** | **N** |
+
+| Severity | Count |
+|----------|-------|
+| Critical | A |
+| High | B |
+| Medium | C |
+| Low | D |
+
+### Critical Issues
+
+[List each with specific object names and IDs]
+
+**Example:**
+- VM `HotServ` (ID: 1) - No cluster or site assignment
+- Device `server-01` (ID: 5) - No site assignment
+
+### High Issues
+
+[List each with specific object names]
+
+### Medium Issues
+
+[Grouped by category with counts]
+
+### Recommendations
+
+1. **[Most impactful fix]** - affects N objects
+2. **[Second priority]** - affects M objects
+...
+
+### Quick Fixes
+
+Commands to fix common issues:
+
+```
+# Assign site to VM
+virt_update_vm id=X site=Y
+
+# Assign platform to device
+dcim_update_device id=X platform=Y
+```
+
+### Next Steps
+
+- Run `/cmdb-register` to properly register new machines
+- Use `/cmdb-sync` to update existing registrations
+- Consider bulk updates via NetBox web UI for >10 items
+```
+
+## Scope-Specific Instructions
+
+### For `vms` scope:
+Focus only on Virtual Machine checks. Skip device and role analysis.
+
+### For `devices` scope:
+Focus only on Device checks. Skip VM and cluster analysis.
+
+### For `naming` scope:
+Focus on naming convention analysis across all objects. Generate detailed pattern report.
+
+### For `roles` scope:
+Focus on role fragmentation analysis. Generate consolidation recommendations.
+
+## User Request
+
+$ARGUMENTS
diff --git a/plugins/cmdb-assistant/commands/cmdb-register.md b/plugins/cmdb-assistant/commands/cmdb-register.md
new file mode 100644
index 0000000..bd8d62f
--- /dev/null
+++ b/plugins/cmdb-assistant/commands/cmdb-register.md
@@ -0,0 +1,322 @@
+---
+description: Register the current machine into NetBox with all running applications
+---
+
+# CMDB Machine Registration
+
+Register the current machine into NetBox, including hardware info, network interfaces, and running applications (Docker containers, services).
+
+## Usage
+
+```
+/cmdb-register [--site <site-name>] [--tenant <tenant-name>] [--role <role-name>]
+```
+
+**Options:**
+- `--site <name>`: Site to assign (will prompt if not provided)
+- `--tenant <name>`: Tenant for resource isolation (optional)
+- `--role <name>`: Device role (default: auto-detect based on services)
+
+## Instructions
+
+You are registering the current machine into NetBox. This is a multi-phase process that discovers local system information and creates corresponding NetBox objects.
+
+**IMPORTANT:** Load the `netbox-patterns` skill for best practice reference.
+
+### Phase 1: System Discovery (via Bash)
+
+Gather system information using these commands:
+
+#### 1.1 Basic Device Info
+
+```bash
+# Hostname
+hostname
+
+# OS/Platform info
+cat /etc/os-release 2>/dev/null || uname -a
+
+# Hardware model (varies by system)
+# Raspberry Pi:
+cat /proc/device-tree/model 2>/dev/null || echo "Unknown"
+
+# x86 systems:
+cat /sys/class/dmi/id/product_name 2>/dev/null || echo "Unknown"
+
+# Serial number
+# Raspberry Pi:
+cat /proc/device-tree/serial-number 2>/dev/null || cat /proc/cpuinfo | grep Serial | cut -d: -f2 | tr -d ' ' 2>/dev/null
+
+# x86 systems:
+cat /sys/class/dmi/id/product_serial 2>/dev/null || echo "Unknown"
+
+# CPU info
+nproc
+
+# Memory (MB)
+free -m | awk '/Mem:/ {print $2}'
+
+# Disk (GB, root filesystem)
+df -BG / | awk 'NR==2 {print $2}' | tr -d 'G'
+```
+
+#### 1.2 Network Interfaces
+
+```bash
+# Get interfaces with IPs (JSON format)
+ip -j addr show 2>/dev/null || ip addr show
+
+# Get default gateway interface
+ip route | grep default | awk '{print $5}' | head -1
+
+# Get MAC addresses
+ip -j link show 2>/dev/null || ip link show
+```
+
+#### 1.3 Running Applications
+
+```bash
+# Docker containers (if docker available)
+docker ps --format '{"name":"{{.Names}}","image":"{{.Image}}","status":"{{.Status}}","ports":"{{.Ports}}"}' 2>/dev/null || echo "Docker not available"
+
+# Docker Compose projects (check common locations)
+find ~/apps /home/*/apps -name "docker-compose.yml" -o -name "docker-compose.yaml" 2>/dev/null | head -20
+
+# Systemd services (running)
+systemctl list-units --type=service --state=running --no-pager --plain 2>/dev/null | grep -v "^UNIT" | head -30
+```
+
+### Phase 2: Pre-Registration Checks (via MCP)
+
+Before creating objects, verify prerequisites:
+
+#### 2.1 Check if Device Already Exists
+
+```
+dcim_list_devices name=<hostname>
+```
+
+**If device exists:**
+- Inform user and suggest `/cmdb-sync` instead
+- Ask if they want to proceed with re-registration (will update existing)
+
+#### 2.2 Verify/Create Site
+
+If `--site` provided:
+```
+dcim_list_sites name=<site-name>
+```
+
+If site doesn't exist, ask user if they want to create it.
+
+If no site provided, list available sites and ask user to choose:
+```
+dcim_list_sites
+```
+
+#### 2.3 Verify/Create Platform
+
+Based on OS detected, check if platform exists:
+```
+dcim_list_platforms name=<platform-name>
+```
+
+**Platform naming:**
+- `Raspberry Pi OS (Bookworm)` for Raspberry Pi
+- `Ubuntu 24.04 LTS` for Ubuntu
+- `Debian 12` for Debian
+- Use format: `{OS Name} {Version}`
+
+If platform doesn't exist, create it:
+```
+dcim_create_platform name=<platform-name> slug=<slug>
+```
+
+#### 2.4 Verify/Create Device Role
+
+Based on detected services:
+- If Docker containers found → `Docker Host`
+- If only basic services → `Server`
+- If specific role specified → Use that
+
+```
+dcim_list_device_roles name=<role-name>
+```
+
+### Phase 3: Device Registration (via MCP)
+
+#### 3.1 Get/Create Manufacturer and Device Type
+
+For Raspberry Pi:
+```
+dcim_list_manufacturers name="Raspberry Pi Foundation"
+dcim_list_device_types manufacturer_id=X model="Raspberry Pi 4 Model B"
+```
+
+Create if not exists.
+
+For generic x86:
+```
+dcim_list_manufacturers name=<detected-manufacturer>
+```
+
+#### 3.2 Create Device
+
+```
+dcim_create_device
+  name=<hostname>
+  device_type=<device_type_id>
+  role=<role_id>
+  site=<site_id>
+  platform=<platform_id>
+  tenant=<tenant_id>  # if provided
+  serial=<serial>
+  description="Registered via cmdb-assistant"
+```
+
+#### 3.3 Create Interfaces
+
+For each network interface discovered:
+```
+dcim_create_interface
+  device=<device_id>
+  name=<interface_name>  # eth0, wlan0, tailscale0, etc.
+  type=<type>            # 1000base-t, virtual, other
+  mac_address=<mac>
+  enabled=true
+```
+
+**Interface type mapping:**
+- `eth*`, `enp*` → `1000base-t`
+- `wlan*` → `ieee802.11ax` (or appropriate wifi type)
+- `tailscale*`, `docker*`, `br-*` → `virtual`
+- `lo` → skip (loopback)
+
+#### 3.4 Create IP Addresses
+
+For each IP on each interface:
+```
+ipam_create_ip_address
+  address=<ip/prefix>    # e.g., "192.168.1.100/24"
+  assigned_object_type="dcim.interface"
+  assigned_object_id=<interface_id>
+  status="active"
+  description="Discovered via cmdb-register"
+```
+
+#### 3.5 Set Primary IP
+
+Identify primary IP (interface with default route):
+```
+dcim_update_device
+  id=<device_id>
+  primary_ip4=<primary_ip_id>
+```
+
+### Phase 4: Container Registration (via MCP)
+
+If Docker containers were discovered:
+
+#### 4.1 Create/Get Cluster Type
+
+```
+virt_list_cluster_types name="Docker Compose"
+```
+
+Create if not exists:
+```
+virt_create_cluster_type name="Docker Compose" slug="docker-compose"
+```
+
+#### 4.2 Create Cluster
+
+For each Docker Compose project directory found:
+```
+virt_create_cluster
+  name=<project-name>  # e.g., "apps-hotport"
+  type=<cluster_type_id>
+  site=<site_id>
+  description="Docker Compose stack on <hostname>"
+```
+
+#### 4.3 Create VMs for Containers
+
+For each running container:
+```
+virt_create_vm
+  name=<container_name>
+  cluster=<cluster_id>
+  site=<site_id>
+  role=<role_id>        # Map container function to role
+  status="active"
+  vcpus=<cpu_shares>    # Default 1.0 if unknown
+  memory=<memory_mb>    # Default 256 if unknown
+  disk=<disk_gb>        # Default 5 if unknown
+  description=<container purpose>
+  comments=<image, ports, volumes info>
+```
+
+**Container role mapping:**
+- `*caddy*`, `*nginx*`, `*traefik*` → "Reverse Proxy"
+- `*db*`, `*postgres*`, `*mysql*`, `*redis*` → "Database"
+- `*webui*`, `*frontend*` → "Web Application"
+- Others → Infer from image name or use generic "Container"
+
+### Phase 5: Documentation
+
+#### 5.1 Add Journal Entry
+
+```
+extras_create_journal_entry
+  assigned_object_type="dcim.device"
+  assigned_object_id=<device_id>
+  comments="Device registered via /cmdb-register command\n\nDiscovered:\n- X network interfaces\n- Y IP addresses\n- Z Docker containers"
+```
+
+### Phase 6: Summary Report
+
+Present registration summary:
+
+```markdown
+## Machine Registration Complete
+
+### Device Created
+- **Name:** <hostname>
+- **Site:** <site>
+- **Platform:** <platform>
+- **Role:** <role>
+- **ID:** <device_id>
+- **URL:** https://netbox.example.com/dcim/devices/<id>/
+
+### Network Interfaces
+| Interface | Type | MAC | IP Address |
+|-----------|------|-----|------------|
+| eth0 | 1000base-t | aa:bb:cc:dd:ee:ff | 192.168.1.100/24 |
+| tailscale0 | virtual | - | 100.x.x.x/32 |
+
+### Primary IP: 192.168.1.100
+
+### Docker Containers Registered (if applicable)
+**Cluster:** <cluster_name> (ID: <cluster_id>)
+
+| Container | Role | vCPUs | Memory | Status |
+|-----------|------|-------|--------|--------|
+| media_jellyfin | Media Server | 2.0 | 2048MB | Active |
+| media_sonarr | Media Management | 1.0 | 512MB | Active |
+
+### Next Steps
+- Run `/cmdb-sync` periodically to keep data current
+- Run `/cmdb-audit` to check data quality
+- Add tags for classification (env:*, team:*, etc.)
+```
+
+## Error Handling
+
+- **Device already exists:** Suggest `/cmdb-sync` or ask to proceed
+- **Site not found:** List available sites, offer to create new
+- **Docker not available:** Skip container registration, note in summary
+- **Permission denied:** Note which operations failed, suggest fixes
+
+## User Request
+
+$ARGUMENTS
diff --git a/plugins/cmdb-assistant/commands/cmdb-sync.md b/plugins/cmdb-assistant/commands/cmdb-sync.md
new file mode 100644
index 0000000..1311019
--- /dev/null
+++ b/plugins/cmdb-assistant/commands/cmdb-sync.md
@@ -0,0 +1,336 @@
+---
+description: Synchronize current machine state with existing NetBox record
+---
+
+# CMDB Machine Sync
+
+Update an existing NetBox device record with the current machine state. Compares local system information with NetBox and applies changes.
+
+## Usage
+
+```
+/cmdb-sync [--full] [--dry-run]
+```
+
+**Options:**
+- `--full`: Force refresh all fields, even unchanged ones
+- `--dry-run`: Show what would change without applying updates
+
+## Instructions
+
+You are synchronizing the current machine's state with its NetBox record. This involves comparing current system state with stored data and updating differences.
+
+**IMPORTANT:** Load the `netbox-patterns` skill for best practice reference.
+
+### Phase 1: Device Lookup (via MCP)
+
+First, find the existing device record:
+
+```bash
+# Get current hostname
+hostname
+```
+
+```
+dcim_list_devices name=<hostname>
+```
+
+**If device not found:**
+- Inform user: "Device '<hostname>' not found in NetBox"
+- Suggest: "Run `/cmdb-register` to register this machine first"
+- Exit sync
+
+**If device found:**
+- Store device ID and all current field values
+- Fetch interfaces: `dcim_list_interfaces device_id=<device_id>`
+- Fetch IPs: `ipam_list_ip_addresses device_id=<device_id>`
+
+Also check for associated clusters/VMs:
+```
+virt_list_clusters  # Look for cluster associated with this device
+virt_list_vms cluster=<cluster_id>  # If cluster found
+```
+
+### Phase 2: Current State Discovery (via Bash)
+
+Gather current system information (same as `/cmdb-register`):
+
+```bash
+# Device info
+hostname
+cat /etc/os-release 2>/dev/null || uname -a
+nproc
+free -m | awk '/Mem:/ {print $2}'
+df -BG / | awk 'NR==2 {print $2}' | tr -d 'G'
+
+# Network interfaces with IPs
+ip -j addr show 2>/dev/null || ip addr show
+
+# Docker containers
+docker ps --format '{"name":"{{.Names}}","image":"{{.Image}}","status":"{{.Status}}"}' 2>/dev/null || echo "[]"
+```
+
+### Phase 3: Comparison
+
+Compare discovered state with NetBox record:
+
+#### 3.1 Device Attributes
+
+| Field | Compare |
+|-------|---------|
+| Platform | OS version changed? |
+| Status | Still active? |
+| Serial | Match? |
+| Description | Keep existing |
+
+#### 3.2 Network Interfaces
+
+| Change Type | Detection |
+|-------------|-----------|
+| New interface | Interface exists locally but not in NetBox |
+| Removed interface | Interface in NetBox but not locally |
+| Changed MAC | MAC address different |
+| Interface type | Type mismatch |
+
+#### 3.3 IP Addresses
+
+| Change Type | Detection |
+|-------------|-----------|
+| New IP | IP exists locally but not in NetBox |
+| Removed IP | IP in NetBox but not locally (on this device) |
+| Primary IP changed | Default route interface changed |
+
+#### 3.4 Docker Containers
+
+| Change Type | Detection |
+|-------------|-----------|
+| New container | Container running locally but no VM in cluster |
+| Stopped container | VM exists but container not running |
+| Resource change | vCPUs/memory different (if trackable) |
+
+### Phase 4: Diff Report
+
+Present changes to user:
+
+```markdown
+## Sync Diff Report
+
+**Device:** <hostname> (ID: <device_id>)
+**NetBox URL:** https://netbox.example.com/dcim/devices/<id>/
+
+### Device Attributes
+| Field | NetBox Value | Current Value | Action |
+|-------|--------------|---------------|--------|
+| Platform | Ubuntu 22.04 | Ubuntu 24.04 | UPDATE |
+| Status | active | active | - |
+
+### Network Interfaces
+
+#### New Interfaces (will create)
+| Interface | Type | MAC | IPs |
+|-----------|------|-----|-----|
+| tailscale0 | virtual | - | 100.x.x.x/32 |
+
+#### Removed Interfaces (will mark offline)
+| Interface | Type | Reason |
+|-----------|------|--------|
+| eth1 | 1000base-t | Not found locally |
+
+#### Changed Interfaces
+| Interface | Field | Old | New |
+|-----------|-------|-----|-----|
+| eth0 | mac_address | aa:bb:cc:00:00:00 | aa:bb:cc:11:11:11 |
+
+### IP Addresses
+
+#### New IPs (will create)
+- 192.168.1.150/24 on eth0
+
+#### Removed IPs (will unassign)
+- 192.168.1.100/24 from eth0
+
+### Docker Containers
+
+#### New Containers (will create VMs)
+| Container | Image | Role |
+|-----------|-------|------|
+| media_lidarr | linuxserver/lidarr | Media Management |
+
+#### Stopped Containers (will mark offline)
+| Container | Last Status |
+|-----------|-------------|
+| media_bazarr | Exited |
+
+### Summary
+- **Updates:** X
+- **Creates:** Y
+- **Removals/Offline:** Z
+```
+
+### Phase 5: User Confirmation
+
+If not `--dry-run`:
+
+```
+The following changes will be applied:
+- Update device platform to "Ubuntu 24.04"
+- Create interface "tailscale0"
+- Create IP "100.x.x.x/32" on tailscale0
+- Create VM "media_lidarr" in cluster
+- Mark VM "media_bazarr" as offline
+
+Proceed with sync? [Y/n]
+```
+
+**Use AskUserQuestion** to get confirmation.
+
+### Phase 6: Apply Updates (via MCP)
+
+Only if user confirms (or `--full` specified):
+
+#### 6.1 Device Updates
+
+```
+dcim_update_device
+  id=<device_id>
+  platform=<new_platform_id>
+  # ... other changed fields
+```
+
+#### 6.2 Interface Updates
+
+**For new interfaces:**
+```
+dcim_create_interface
+  device=<device_id>
+  name=<interface_name>
+  type=<type>
+  mac_address=<mac>
+  enabled=true
+```
+
+**For removed interfaces:**
+```
+dcim_update_interface
+  id=<interface_id>
+  enabled=false
+  description="Marked offline by cmdb-sync - interface no longer present"
+```
+
+**For changed interfaces:**
+```
+dcim_update_interface
+  id=<interface_id>
+  mac_address=<new_mac>
+```
+
+#### 6.3 IP Address Updates
+
+**For new IPs:**
+```
+ipam_create_ip_address
+  address=<ip/prefix>
+  assigned_object_type="dcim.interface"
+  assigned_object_id=<interface_id>
+  status="active"
+```
+
+**For removed IPs:**
+```
+ipam_update_ip_address
+  id=<ip_id>
+  assigned_object_type=null
+  assigned_object_id=null
+  description="Unassigned by cmdb-sync"
+```
+
+#### 6.4 Primary IP Update
+
+If primary IP changed:
+```
+dcim_update_device
+  id=<device_id>
+  primary_ip4=<new_primary_ip_id>
+```
+
+#### 6.5 Container/VM Updates
+
+**For new containers:**
+```
+virt_create_vm
+  name=<container_name>
+  cluster=<cluster_id>
+  status="active"
+  # ... other fields
+```
+
+**For stopped containers:**
+```
+virt_update_vm
+  id=<vm_id>
+  status="offline"
+  description="Container stopped - detected by cmdb-sync"
+```
+
+### Phase 7: Journal Entry
+
+Document the sync:
+
+```
+extras_create_journal_entry
+  assigned_object_type="dcim.device"
+  assigned_object_id=<device_id>
+  comments="Device synced via /cmdb-sync command\n\nChanges applied:\n- <list of changes>"
+```
+
+### Phase 8: Summary Report
+
+```markdown
+## Sync Complete
+
+**Device:** <hostname>
+**Sync Time:** <timestamp>
+
+### Changes Applied
+- Updated platform: Ubuntu 22.04 → Ubuntu 24.04
+- Created interface: tailscale0 (ID: X)
+- Created IP: 100.x.x.x/32 (ID: Y)
+- Created VM: media_lidarr (ID: Z)
+- Marked VM offline: media_bazarr (ID: W)
+
+### Current State
+- **Interfaces:** 4 (3 active, 1 offline)
+- **IP Addresses:** 5
+- **Containers/VMs:** 8 (7 active, 1 offline)
+
+### Next Sync
+Run `/cmdb-sync` again after:
+- Adding/removing Docker containers
+- Changing network configuration
+- OS upgrades
+```
+
+## Dry Run Mode
+
+If `--dry-run` specified:
+- Complete Phase 1-4 (lookup, discovery, compare, diff report)
+- Skip Phase 5-8 (no confirmation, no updates, no journal)
+- End with: "Dry run complete. No changes applied. Run without --dry-run to apply."
+
+## Full Sync Mode
+
+If `--full` specified:
+- Skip user confirmation
+- Update all fields even if unchanged (force refresh)
+- Useful for ensuring NetBox matches current state exactly
+
+## Error Handling
+
+- **Device not found:** Suggest `/cmdb-register`
+- **Permission denied on updates:** Note which failed, continue with others
+- **Cluster not found:** Offer to create or skip container sync
+- **API errors:** Log error, continue with remaining updates
+
+## User Request
+
+$ARGUMENTS
diff --git a/plugins/cmdb-assistant/hooks/hooks.json b/plugins/cmdb-assistant/hooks/hooks.json
new file mode 100644
index 0000000..d90fb51
--- /dev/null
+++ b/plugins/cmdb-assistant/hooks/hooks.json
@@ -0,0 +1,21 @@
+{
+  "hooks": {
+    "SessionStart": [
+      {
+        "type": "command",
+        "command": "${CLAUDE_PLUGIN_ROOT}/hooks/startup-check.sh"
+      }
+    ],
+    "PreToolUse": [
+      {
+        "matcher": "mcp__plugin_cmdb-assistant_netbox__virt_create|mcp__plugin_cmdb-assistant_netbox__virt_update|mcp__plugin_cmdb-assistant_netbox__dcim_create|mcp__plugin_cmdb-assistant_netbox__dcim_update",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "${CLAUDE_PLUGIN_ROOT}/hooks/validate-input.sh"
+          }
+        ]
+      }
+    ]
+  }
+}
diff --git a/plugins/cmdb-assistant/hooks/startup-check.sh b/plugins/cmdb-assistant/hooks/startup-check.sh
new file mode 100755
index 0000000..46f0b46
--- /dev/null
+++ b/plugins/cmdb-assistant/hooks/startup-check.sh
@@ -0,0 +1,66 @@
+#!/bin/bash
+# cmdb-assistant SessionStart hook
+# Tests NetBox API connectivity and checks for data quality issues
+# All output MUST have [cmdb-assistant] prefix
+# Non-blocking: always exits 0
+
+set -euo pipefail
+
+PREFIX="[cmdb-assistant]"
+
+# Load NetBox configuration
+NETBOX_CONFIG="$HOME/.config/claude/netbox.env"
+
+if [[ ! -f "$NETBOX_CONFIG" ]]; then
+    echo "$PREFIX NetBox not configured - run /cmdb-assistant:initial-setup"
+    exit 0
+fi
+
+# Source config
+source "$NETBOX_CONFIG"
+
+# Validate required variables
+if [[ -z "${NETBOX_API_URL:-}" ]] || [[ -z "${NETBOX_API_TOKEN:-}" ]]; then
+    echo "$PREFIX Missing NETBOX_API_URL or NETBOX_API_TOKEN in config"
+    exit 0
+fi
+
+# Quick API connectivity test (5s timeout)
+HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" -m 5 \
+    -H "Authorization: Token $NETBOX_API_TOKEN" \
+    -H "Accept: application/json" \
+    "${NETBOX_API_URL}/" 2>/dev/null || echo "000")
+
+if [[ "$HTTP_CODE" == "000" ]]; then
+    echo "$PREFIX NetBox API unreachable (timeout/connection error)"
+    exit 0
+elif [[ "$HTTP_CODE" != "200" ]]; then
+    echo "$PREFIX NetBox API returned HTTP $HTTP_CODE - check credentials"
+    exit 0
+fi
+
+# Check for VMs without site assignment (data quality)
+VMS_RESPONSE=$(curl -s -m 5 \
+    -H "Authorization: Token $NETBOX_API_TOKEN" \
+    -H "Accept: application/json" \
+    "${NETBOX_API_URL}/virtualization/virtual-machines/?site__isnull=true&limit=1" 2>/dev/null || echo '{"count":0}')
+
+VMS_NO_SITE=$(echo "$VMS_RESPONSE" | grep -o '"count":[0-9]*' | cut -d: -f2 || echo "0")
+
+if [[ "$VMS_NO_SITE" -gt 0 ]]; then
+    echo "$PREFIX $VMS_NO_SITE VMs without site assignment - run /cmdb-audit for details"
+fi
+
+# Check for devices without platform
+DEVICES_RESPONSE=$(curl -s -m 5 \
+    -H "Authorization: Token $NETBOX_API_TOKEN" \
+    -H "Accept: application/json" \
+    "${NETBOX_API_URL}/dcim/devices/?platform__isnull=true&limit=1" 2>/dev/null || echo '{"count":0}')
+
+DEVICES_NO_PLATFORM=$(echo "$DEVICES_RESPONSE" | grep -o '"count":[0-9]*' | cut -d: -f2 || echo "0")
+
+if [[ "$DEVICES_NO_PLATFORM" -gt 0 ]]; then
+    echo "$PREFIX $DEVICES_NO_PLATFORM devices without platform - consider updating"
+fi
+
+exit 0
diff --git a/plugins/cmdb-assistant/hooks/validate-input.sh b/plugins/cmdb-assistant/hooks/validate-input.sh
new file mode 100755
index 0000000..c889efa
--- /dev/null
+++ b/plugins/cmdb-assistant/hooks/validate-input.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# cmdb-assistant PreToolUse validation hook
+# Validates input parameters for create/update operations
+# NON-BLOCKING: Warns but allows operation to proceed (always exits 0)
+
+set -euo pipefail
+
+PREFIX="[cmdb-assistant]"
+
+# Read tool input from stdin
+INPUT=$(cat)
+
+# Extract tool name from the input
+# Format varies, try to find tool_name or name field
+TOOL_NAME=""
+if echo "$INPUT" | grep -q '"tool_name"'; then
+    TOOL_NAME=$(echo "$INPUT" | grep -o '"tool_name"[[:space:]]*:[[:space:]]*"[^"]*"' | head -1 | sed 's/.*"\([^"]*\)"$/\1/' || true)
+elif echo "$INPUT" | grep -q '"name"'; then
+    TOOL_NAME=$(echo "$INPUT" | grep -o '"name"[[:space:]]*:[[:space:]]*"[^"]*"' | head -1 | sed 's/.*"\([^"]*\)"$/\1/' || true)
+fi
+
+# If we can't determine the tool, exit silently
+if [[ -z "$TOOL_NAME" ]]; then
+    exit 0
+fi
+
+# VM creation/update validation
+if echo "$TOOL_NAME" | grep -qE "virt_create_vm|virt_create_virtual_machine|virt_update_vm|virt_update_virtual_machine"; then
+    WARNINGS=()
+
+    # Check for missing site
+    if ! echo "$INPUT" | grep -qE '"site"[[:space:]]*:[[:space:]]*[0-9]'; then
+        WARNINGS+=("no site assigned")
+    fi
+
+    # Check for missing tenant
+    if ! echo "$INPUT" | grep -qE '"tenant"[[:space:]]*:[[:space:]]*[0-9]'; then
+        WARNINGS+=("no tenant assigned")
+    fi
+
+    # Check for missing platform
+    if ! echo "$INPUT" | grep -qE '"platform"[[:space:]]*:[[:space:]]*[0-9]'; then
+        WARNINGS+=("no platform assigned")
+    fi
+
+    if [[ ${#WARNINGS[@]} -gt 0 ]]; then
+        echo "$PREFIX VM best practice: $(IFS=', '; echo "${WARNINGS[*]}") - consider assigning for data quality"
+    fi
+fi
+
+# Device creation/update validation
+if echo "$TOOL_NAME" | grep -qE "dcim_create_device|dcim_update_device"; then
+    WARNINGS=()
+
+    # Check for missing platform
+    if ! echo "$INPUT" | grep -qE '"platform"[[:space:]]*:[[:space:]]*[0-9]'; then
+        WARNINGS+=("no platform assigned")
+    fi
+
+    # Check for missing tenant
+    if ! echo "$INPUT" | grep -qE '"tenant"[[:space:]]*:[[:space:]]*[0-9]'; then
+        WARNINGS+=("no tenant assigned")
+    fi
+
+    if [[ ${#WARNINGS[@]} -gt 0 ]]; then
+        echo "$PREFIX Device best practice: $(IFS=', '; echo "${WARNINGS[*]}") - consider assigning"
+    fi
+fi
+
+# Cluster creation validation
+if echo "$TOOL_NAME" | grep -qE "virt_create_cluster"; then
+    # Check for missing site scope
+    if ! echo "$INPUT" | grep -qE '"site"[[:space:]]*:[[:space:]]*[0-9]'; then
+        echo "$PREFIX Cluster best practice: no site scope - clusters should be scoped to a site"
+    fi
+fi
+
+# Always allow operation (non-blocking)
+exit 0
diff --git a/plugins/cmdb-assistant/skills/netbox-patterns/SKILL.md b/plugins/cmdb-assistant/skills/netbox-patterns/SKILL.md
new file mode 100644
index 0000000..1581aa7
--- /dev/null
+++ b/plugins/cmdb-assistant/skills/netbox-patterns/SKILL.md
@@ -0,0 +1,249 @@
+---
+description: NetBox best practices for data quality and consistency based on official NetBox Labs guidelines
+---
+
+# NetBox Best Practices Skill
+
+Reference documentation for proper NetBox data modeling, following official NetBox Labs guidelines.
+
+## CRITICAL: Dependency Order
+
+Objects must be created in this order due to foreign key dependencies. Creating objects out of order results in validation errors.
+
+```
+1. ORGANIZATION (no dependencies)
+   ├── Tenant Groups
+   ├── Tenants (optional: Tenant Group)
+   ├── Regions
+   ├── Site Groups
+   └── Tags
+
+2. SITES AND LOCATIONS
+   ├── Sites (optional: Region, Site Group, Tenant)
+   └── Locations (requires: Site, optional: parent Location)
+
+3. DCIM PREREQUISITES
+   ├── Manufacturers
+   ├── Device Types (requires: Manufacturer)
+   ├── Platforms
+   ├── Device Roles
+   └── Rack Roles
+
+4. RACKS
+   └── Racks (requires: Site, optional: Location, Rack Role, Tenant)
+
+5. DEVICES
+   ├── Devices (requires: Device Type, Role, Site; optional: Rack, Location)
+   └── Interfaces (requires: Device)
+
+6. VIRTUALIZATION
+   ├── Cluster Types
+   ├── Cluster Groups
+   ├── Clusters (requires: Cluster Type, optional: Site)
+   ├── Virtual Machines (requires: Cluster OR Site)
+   └── VM Interfaces (requires: Virtual Machine)
+
+7. IPAM
+   ├── VRFs (optional: Tenant)
+   ├── Prefixes (optional: VRF, Site, Tenant)
+   ├── IP Addresses (optional: VRF, Tenant, Interface)
+   └── VLANs (optional: Site, Tenant)
+
+8. CONNECTIONS (last)
+   └── Cables (requires: endpoints)
+```
+
+**Key Rule:** NEVER create a VM before its cluster exists. NEVER create a device before its site exists.
+
+## HIGH: Site Assignment
+
+**All infrastructure objects should have a site:**
+
+| Object Type | Site Requirement |
+|-------------|------------------|
+| Devices | **REQUIRED** |
+| Racks | **REQUIRED** |
+| VMs | RECOMMENDED (via cluster or direct) |
+| Clusters | RECOMMENDED |
+| Prefixes | RECOMMENDED |
+| VLANs | RECOMMENDED |
+
+**Why Sites Matter:**
+- Location-based queries and filtering
+- Power and capacity budgeting
+- Physical inventory tracking
+- Compliance and audit requirements
+
+## HIGH: Tenant Usage
+
+Use tenants for logical resource separation:
+
+**When to Use Tenants:**
+- Multi-team environments (assign resources to teams)
+- Multi-customer scenarios (MSP, hosting)
+- Cost allocation requirements
+- Access control boundaries
+
+**Apply Tenants To:**
+- Sites (who owns the physical location)
+- Devices (who operates the hardware)
+- VMs (who owns the workload)
+- Prefixes (who owns the IP space)
+- VLANs (who owns the network segment)
+
+## HIGH: Platform Tracking
+
+Platforms track OS/runtime information for automation and lifecycle management.
+
+**Platform Examples:**
+| Device Type | Platform Examples |
+|-------------|-------------------|
+| Servers | Ubuntu 24.04, Windows Server 2022, RHEL 9 |
+| Network | Cisco IOS 17.x, Junos 23.x, Arista EOS |
+| Raspberry Pi | Raspberry Pi OS (Bookworm), Ubuntu Server ARM |
+| Containers | Docker Container (as runtime indicator) |
+
+**Benefits:**
+- Vulnerability tracking (CVE correlation)
+- Configuration management integration
+- Lifecycle management (EOL tracking)
+- Automation targeting
+
+## MEDIUM: Tag Conventions
+
+Use tags for cross-cutting classification that spans object types.
+
+**Recommended Tag Patterns:**
+
+| Pattern | Purpose | Examples |
+|---------|---------|----------|
+| `env:*` | Environment classification | `env:production`, `env:staging`, `env:development` |
+| `app:*` | Application grouping | `app:web`, `app:database`, `app:monitoring` |
+| `team:*` | Ownership | `team:platform`, `team:infra`, `team:devops` |
+| `backup:*` | Backup policy | `backup:daily`, `backup:weekly`, `backup:none` |
+| `monitoring:*` | Monitoring level | `monitoring:critical`, `monitoring:standard` |
+
+**Tags vs Custom Fields:**
+- Tags: Cross-object classification, multiple values, filtering
+- Custom Fields: Object-specific structured data, single values, reporting
+
+## MEDIUM: Naming Conventions
+
+Consistent naming improves searchability and automation compatibility.
+
+**Recommended Patterns:**
+
+| Object Type | Pattern | Examples |
+|-------------|---------|----------|
+| Devices | `{role}-{location}-{number}` | `web-dc1-01`, `db-cloud-02`, `fw-home-01` |
+| VMs | `{env}-{app}-{number}` | `prod-api-01`, `dev-worker-03` |
+| Clusters | `{site}-{type}` | `dc1-vmware`, `home-docker` |
+| Prefixes | Include purpose in description | "Production web tier /24" |
+| VLANs | `{site}-{function}` | `dc1-mgmt`, `home-iot` |
+
+**Avoid:**
+- Inconsistent casing (mixing `HotServ` and `hotserv`)
+- Mixed separators (mixing `hhl_cluster` and `media-cluster`)
+- Generic names without context (`server1`, `vm2`)
+- Special characters other than hyphen
+
+## MEDIUM: Role Consolidation
+
+Avoid role fragmentation - use general roles with platform/tags for specificity.
+
+**Instead of:**
+```
+nginx-web-server
+apache-web-server
+web-server-frontend
+web-server-api
+```
+
+**Use:**
+```
+web-server (role) + platform (nginx/apache) + tags (frontend, api)
+```
+
+**Recommended Role Categories:**
+
+| Category | Roles |
+|----------|-------|
+| Infrastructure | `hypervisor`, `storage-server`, `network-device`, `firewall` |
+| Compute | `application-server`, `database-server`, `web-server`, `api-server` |
+| Services | `container-host`, `load-balancer`, `monitoring-server`, `backup-server` |
+| Development | `development-workstation`, `ci-runner`, `build-server` |
+| Containers | `reverse-proxy`, `database`, `cache`, `queue`, `worker` |
+
+## Docker Containers as VMs
+
+NetBox's Virtualization module can model Docker containers:
+
+**Approach:**
+1. Create device for physical Docker host
+2. Create cluster (type: "Docker Compose" or "Docker Swarm")
+3. Associate cluster with host device
+4. Create VMs for each container in the cluster
+
+**VM Fields for Containers:**
+- `name`: Container name (e.g., `media_jellyfin`)
+- `role`: Container function (e.g., `Media Server`)
+- `vcpus`: CPU limit/shares
+- `memory`: Memory limit (MB)
+- `disk`: Volume size estimate
+- `description`: Container purpose
+- `comments`: Image, ports, volumes, dependencies
+
+**This is a pragmatic modeling choice** - containers aren't VMs, but the Virtualization module is the closest fit for tracking container workloads.
+
+## Primary IP Workflow
+
+To set a device/VM's primary IP:
+
+1. Create interface on device/VM
+2. Create IP address assigned to interface
+3. Set IP as `primary_ip4` or `primary_ip6` on device/VM
+
+**Why Primary IP Matters:**
+- Used for device connectivity checks
+- Displayed in device list views
+- Used by automation tools (NAPALM, Ansible)
+- Required for many integrations
+
+## Data Quality Checklist
+
+Before closing a sprint or audit:
+
+- [ ] All VMs have site assignment (direct or via cluster)
+- [ ] All VMs have tenant assignment
+- [ ] All active devices have platform
+- [ ] All active devices have primary IP
+- [ ] Naming follows conventions
+- [ ] No orphaned prefixes (allocated but unused)
+- [ ] Tags applied consistently
+- [ ] Clusters scoped to sites
+- [ ] Roles not overly fragmented
+
+## MCP Tool Reference
+
+**Dependency Order for Creation:**
+```
+1. dcim_create_site
+2. dcim_create_manufacturer
+3. dcim_create_device_type
+4. dcim_create_device_role
+5. dcim_create_platform
+6. dcim_create_device
+7. virt_create_cluster_type
+8. virt_create_cluster
+9. virt_create_vm
+10. dcim_create_interface / virt_create_vm_interface
+11. ipam_create_ip_address
+12. dcim_update_device (set primary_ip4)
+```
+
+**Lookup Before Create:**
+Always check if object exists before creating to avoid duplicates:
+```
+1. dcim_list_devices name=<hostname>
+2. If exists, update; if not, create
+```
diff --git a/scripts/verify-hooks.sh b/scripts/verify-hooks.sh
index 7b8588c..a2317ae 100755
--- a/scripts/verify-hooks.sh
+++ b/scripts/verify-hooks.sh
@@ -23,7 +23,7 @@ if [ -d ~/.claude/plugins/cache/leo-claude-mktplace ]; then
 fi
 
 # Verify installed hooks are command type
-for plugin in doc-guardian code-sentinel projman pr-review project-hygiene data-platform; do
+for plugin in doc-guardian code-sentinel projman pr-review project-hygiene data-platform cmdb-assistant; do
     HOOK_FILE=~/.claude/plugins/marketplaces/leo-claude-mktplace/plugins/$plugin/hooks/hooks.json
     if [ -f "$HOOK_FILE" ]; then
         if grep -q '"type": "command"' "$HOOK_FILE" || grep -q '"type":"command"' "$HOOK_FILE"; then