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Security audit

DC Weather

Security checks for vulnerabilities and agentic risk

Overview

This skill simply checks Washington, DC weather using a public weather API and does not install code, persist, or access local data.

Before installing, understand that using the skill will make a network request to Open-Meteo for Washington, DC weather. It does not appear to access private local data or make lasting system changes.

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
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 13)May include surrounding context.

Quick Check

bash
curl -s "https://api.open-meteo.com/v1/forecast?latitude=38.9072&longitude=-77.0369&current_weather=true&temperature_unit=fahrenheit" | jq -r '"DC: \(.current_weather.temperature)°F, wind \(.current_weather.windspeed) mph, code \(.current_weather.weathercode)"'

Weather Codes

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 31)May include surrounding context.

Quick Check

bash
curl -s "https://api.open-meteo.com/v1/forecast?latitude=38.9072&longitude=-77.0369&current_weather=true&temperature_unit=fahrenheit" | jq -r '"DC: \(.current_weather.temperature)°F, wind \(.current_weather.windspeed) mph, code \(.current_weather.weathercode)"'

Weather Codes

Static analysis

No suspicious patterns detected.