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Security audit

TRPG Generate Character Portraits

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward TRPG portrait-generation helper that discloses its file changes and credit usage.

Before installing, expect the skill to generate images, spend image-generation credits, create PNG files, and modify Excel character sheets. Confirm the image count and keep backups of spreadsheets if the sheets are important.

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
  • 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
Findings (1)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill content is written entirely in Chinese and instructs behavior in that language, while also listing multilingual triggers. There is no indication that the user can choose output language or that the locale restriction is justified as a region-specific requirement.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.