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Security audit

Disk Usage Watcher

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward disk-space monitor with disclosed scheduled checks and alerting.

Install this if you want periodic disk-space alerts. Review the configured paths, thresholds, alert destination, and whether a 15-minute cron cadence is appropriate for your environment.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Vague Triggers

Medium
Confidence
94% confidence
Finding
The skill can be invoked both directly and automatically via cron, and its example prompts are broad enough to match common monitoring-related requests. This increases the chance of unintended activation, which could trigger repeated command execution and alert generation without explicit user intent.

Static analysis

No suspicious patterns detected.