Security audit

Class

Security checks for vulnerabilities and agentic risk

Overview

This is a static OOP reference skill whose bundled script only prints educational text and does not access data, network services, credentials, or persistence mechanisms.

This skill appears safe to install as a local programming reference. The only practical consideration is that it ships a shell script, so users should invoke the documented commands intentionally; the inspected script only prints static reference text.

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

Memory PoisoningPersistent Context Injection, Context Window Stuffing, Memory Manipulation
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

Findings (1)

Persistent Context Injection

Medium

Category: Memory Poisoning
Confidence: 80% confidence
Finding: Skill injects content designed to persist in agent memory or context across interactions. Persistent injection can alter agent behavior long after the initial interaction.
Content: Scanner excerpt · scripts/script.sh (reported line 412)May include surrounding context.
sh
Deep Inheritance Hierarchies: Animal → Mammal → Domestic → Pet → Dog → GoldenRetriever Problems: fragile, hard to understand, hard to change base Rule: max 3 levels deep Fix: flatten hierarchy, use composition, use interfaces

Static analysis

No suspicious patterns detected.