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Security audit

Metra Skill

Security checks across malware telemetry and agentic risk

Overview

This skill is a disclosed Metra transit lookup tool that uses a Metra API key and local GTFS cache in ways that match its purpose.

Install only if you are comfortable providing a dedicated Metra API key, running npm install for the protobuf dependency, and allowing a public schedule cache under ~/.metra/gtfs. Keep unrelated secrets out of the skill-local .env file.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

VirusTotal

56/56 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

Detected: suspicious.env_credential_access

Environment variable access combined with network send.

Critical
Code
suspicious.env_credential_access
Location
scripts/metra.mjs:37