AgentGuard - Security Monitoring Skill

AgentGuard - Security Monitoring Skill

Version: 1.0.0
Author: Manas AI
Category: Security & Monitoring

Overview

AgentGuard is a comprehensive security monitoring skill that watches over agent operations, detecting suspicious behavior, logging communications, and providing actionable security reports.

Capabilities

1. File Access Monitoring

Track all file read/write operations with pattern analysis.

Trigger: Continuous background monitoring
Command: agentguard monitor files [--watch-dir <path>]

What it detects:

• Unusual file access patterns (bulk reads, sensitive directories)
• Access to credential files (.env, .secrets, keys)
• Unexpected write operations to system directories
• File exfiltration attempts (large reads followed by network calls)

2. API Call Detection

Monitor outbound API calls for suspicious activity.

Command: agentguard monitor api

What it detects:

• Calls to unknown/untrusted endpoints
• Unusual API call frequency (rate anomalies)
• Sensitive data in request payloads
• Authentication token exposure
• Calls to known malicious domains

3. Communication Logging

Log all external communications for audit trails.

Command: agentguard log comms [--output <path>]

Logs include:

• HTTP/HTTPS requests (sanitized)
• WebSocket connections
• Email sends
• Message platform outputs (Telegram, Discord, etc.)
• Timestamp, destination, payload hash

4. Anomaly Detection

ML-lite pattern analysis for behavioral anomalies.

Command: agentguard detect anomalies [--sensitivity <low|medium|high>]

Detection methods:

• Baseline deviation (learns normal patterns)
• Time-of-day anomalies
• Sequence analysis (unusual operation chains)
• Volume spikes
• New destination detection

5. Security Reports

Generate comprehensive daily security reports.

Command: agentguard report [--period <daily|weekly|monthly>]

Report includes:

• Activity summary
• Alert breakdown by severity
• Top accessed resources
• Communication destinations
• Anomaly timeline
• Recommendations

Configuration

Config File: config/agentguard.yaml

monitoring:
  enabled: true
  file_watch_dirs:
    - ~/clawd
    - ~/.clawdbot
  exclude_patterns:
    - "*.log"
    - "node_modules/**"
    - ".git/**"

alerts:
  sensitivity: medium  # low, medium, high
  channels:
    - telegram
  alert_on:
    - credential_access
    - bulk_file_read
    - unknown_api_endpoint
    - data_exfiltration
  cooldown_minutes: 15

api_monitoring:
  trusted_domains:
    - api.anthropic.com
    - api.openai.com
    - api.telegram.org
    - api.elevenlabs.io
  block_on_suspicious: false  # true = prevent call, false = alert only

logging:
  retention_days: 30
  log_dir: ~/.agentguard/logs
  hash_sensitive_data: true

reporting:
  auto_daily_report: true
  report_time: "09:00"
  report_channel: telegram

Usage Examples

Start Full Monitoring

agentguard start

Enables all monitoring features with default config.

Check Current Security Status

agentguard status

Returns current threat level, active monitors, recent alerts.

Investigate Specific Activity

agentguard investigate --timerange "last 2 hours" --type file_access

Generate Immediate Report

agentguard report --now

Review Alert History

agentguard alerts --last 24h --severity high

Whitelist a Domain

agentguard trust add api.newservice.com --reason "Required for X integration"

Alert Severity Levels

Integration Points

With Clawdbot

• Receives file/API operation hooks
• Sends alerts via configured channels
• Integrates with heartbeat for periodic checks

With Other Skills

• Shares threat data with other security skills
• Can block operations (if configured)
• Provides audit logs for compliance skills

Data Storage

~/.agentguard/
├── logs/
│   ├── file_access/
│   ├── api_calls/
│   └── communications/
├── baselines/
│   └── behavior_model.json
├── alerts/
│   └── YYYY-MM-DD.json
└── reports/
    └── YYYY-MM-DD_report.md

Privacy & Security

• No external data transmission - All processing is local
• Sensitive data hashing - Credentials are never logged in plain text
• Configurable retention - Auto-delete old logs
• Encrypted storage - Optional AES encryption for logs

Troubleshooting

High false positive rate

→ Increase baseline learning period or reduce sensitivity

Missing file events

→ Check file_watch_dirs config covers target directories

Reports not generating

→ Verify report_time format and timezone settings

Execution Scripts

Author Notes

AgentGuard is designed with defense-in-depth principles. It assumes agents can be compromised or manipulated, and provides visibility into their operations.

For maximum security, run AgentGuard in a separate process with limited write access to prevent a compromised agent from disabling monitoring.