diff --git a/docs/security/guardrails.md b/docs/security/guardrails.md
new file mode 100644
index 000000000..6b89aa1cd
--- /dev/null
+++ b/docs/security/guardrails.md
@@ -0,0 +1,116 @@
+---
+title: Guardrails
+summary: AI safety guardrails with @sentinelseed/moltbot.
+permalink: /security/guardrails/
+---
+
+# Guardrails
+
+The [@sentinelseed/moltbot](https://www.npmjs.com/package/@sentinelseed/moltbot) package provides AI safety guardrails for Moltbot, including real-time validation, data leak prevention, and threat detection.
+
+```bash
+npm install @sentinelseed/moltbot
+```
+
+## Quick Start
+
+Add to your Moltbot config:
+
+```json
+{
+  "plugins": {
+    "sentinel": {
+      "level": "watch"
+    }
+  }
+}
+```
+
+## Protection Levels
+
+| Level | Blocking | Alerting | Best For |
+|-------|----------|----------|----------|
+| `off` | None | None | Disable Sentinel |
+| `watch` | None | All threats | Daily use, full visibility |
+| `guard` | Critical | High+ threats | Sensitive data environments |
+| `shield` | Maximum | All threats | High-security workflows |
+
+The default `watch` mode provides full monitoring with zero blocking. Higher levels add protection you can always bypass when needed.
+
+## Hook Integration
+
+Sentinel provides a hook factory that integrates with Moltbot's hook system:
+
+```ts
+import { createSentinelHooks } from '@sentinelseed/moltbot';
+
+const hooks = createSentinelHooks({
+  level: 'guard',
+  alerts: {
+    enabled: true,
+    webhook: 'https://your-webhook.com/sentinel'
+  }
+});
+
+export const moltbot_hooks = {
+  message_received: hooks.messageReceived,
+  before_agent_start: hooks.beforeAgentStart,
+  message_sending: hooks.messageSending,
+  before_tool_call: hooks.beforeToolCall,
+  agent_end: hooks.agentEnd,
+};
+```
+
+## Validators
+
+For advanced use cases, validators can be used directly:
+
+```ts
+import { validateOutput, validateTool, analyzeInput, getLevelConfig } from '@sentinelseed/moltbot';
+
+const levelConfig = getLevelConfig('guard');
+
+const outputResult = await validateOutput(content, levelConfig);
+if (outputResult.shouldBlock) {
+  console.log('Blocked:', outputResult.issues);
+}
+
+const toolResult = await validateTool('bash', { command: 'ls' }, levelConfig);
+const inputResult = await analyzeInput(userMessage);
+```
+
+## Escape Hatches
+
+When you need to bypass protection:
+
+```bash
+/sentinel pause 5m          # Pause for 5 minutes
+/sentinel allow-once        # Allow next action
+/sentinel trust bash        # Trust a tool for the session
+/sentinel resume            # Resume protection
+```
+
+## Configuration
+
+```json
+{
+  "plugins": {
+    "sentinel": {
+      "level": "guard",
+      "alerts": {
+        "enabled": true,
+        "webhook": "https://your-webhook.com/sentinel",
+        "minSeverity": "high"
+      },
+      "ignorePatterns": ["MY_SAFE_TOKEN"],
+      "logLevel": "warn"
+    }
+  }
+}
+```
+
+All validation runs locally without external API calls.
+
+## Links
+
+See the [npm package](https://www.npmjs.com/package/@sentinelseed/moltbot) for installation details, the [source repository](https://github.com/sentinel-seed/sentinel) for implementation, and the [Sentinel documentation](https://sentinelseed.dev/docs/integrations/moltbot) for additional examples.