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Security audit

Weather

Security checks for vulnerabilities and agentic risk

Overview

This is a simple weather lookup skill that uses public weather services and does not install code, request credentials, or persist access.

Installers should understand that weather requests will contact third-party services and may reveal the queried city, airport code, or coordinates. Use a nearby city or coarse location instead of an exact private address when privacy matters.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

External Transmission

Medium
Category
Data Exfiltration
Content
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.
Confidence
82% confidence
Finding
The example explicitly makes an external HTTPS request to api.open-meteo.com, which transmits location data to a third party. In this skill context, external transmission is necessary for functionality, but the absence of a warning or data-handling note means users may not realize their query data leaves the local environment.

Missing User Warnings

Low
Confidence
88% confidence
Finding
The skill instructs users to send location queries to third-party weather services but does not disclose that user-supplied locations, coordinates, or airport codes will be transmitted externally. While this is expected for a weather lookup skill and the data is not highly sensitive by default, it can still expose user interests or whereabouts if used with precise locations.

Static analysis

No suspicious patterns detected.