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Security audit

Accurate weather forecasts using Open-Meto API (no key required)

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple weather helper that uses documented Open-Meteo API calls and does not install code, persist access, or handle credentials.

Before installing, be comfortable with the fact that city or location searches will be sent to Open-Meteo to retrieve weather data. Avoid entering sensitive private locations if that disclosure is a concern.

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 (3)

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 18)May include surrounding context.

md
| Action | Endpoint |
|--------|----------|
| Geocode city to lat/lon | `GET https://geocoding-api.open-meteo.com/v1/search?name={city}&count=1&language=en` |
| Current + 7-day forecast | `GET https://api.open-meteo.com/v1/forecast?latitude={lat}&longitude={lon}&current=temperature_2m,relative_humidity_2m,apparent_temperature,weather_code,wind_speed_10m,wind_direction_10m,precipitation&daily=temperature_2m_max,temperature_2m_min,precipitation_sum,precipitation_probability_max,sunrise,sunset,wind_speed_10m_max,weather_code&timezone=auto` |

## Units

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
86% confidence
Finding

This markdown file describes calling Open-Meteo and its geocoding endpoint using the user's requested location, which transmits user input to a third-party service. While the network use is central to the skill's purpose, the description does not explicitly warn users that their queried location will be sent to external APIs.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
93% confidence
Finding

The documented geocoding request includes language=en, which forces English in returned place data. The file does not indicate that this is optional, configurable, or justified by a region-specific requirement, so it appears to violate the language/locale policy.

Content

No source excerpt is available for this finding.