ClawHub
Back to skill

Security audit

Test Skill

Security checks for vulnerabilities and agentic risk

Overview

This is a small weather lookup skill that discloses its use of public weather services and does not install code, persist, or request sensitive access.

Before installing, understand that weather queries will contact wttr.in or Open-Meteo and may reveal the location or coordinates you ask about to those services. Avoid putting secrets or private personal details in weather query strings.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 44)May include surrounding context.

Free, no key, good for programmatic use:

bash
curl -s "https://api.open-meteo.com/v1/forecast?latitude=51.5&longitude=-0.12&current_weather=true"

Find coordinates for a city, then query. Returns JSON with temp, windspeed, weathercode.

Vague Triggers

Low
Category
Not specified by scanner
Confidence
81% confidence
Finding

The description 'Get current weather and forecasts' is a generic capability statement that could overlap with many ordinary user requests, but it does not specify invocation boundaries, trigger phrases, or exclusions. In a manifest-scoped file, this lack of specificity can make it unclear when the skill should activate versus when a general assistant should respond directly.

Content

No source excerpt is available for this finding.