Security audit

玩转吉他指板

Security checks for vulnerabilities and agentic risk

Overview

This is a simple guitar-learning navigation skill that only points users to a disclosed external website.

Install this if you are comfortable with a skill that may surface or open changesway.com for guitar fretboard learning. Review the external site in your browser as you would any third-party learning resource.

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

Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
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 (2)

Vague Triggers

Medium

Confidence: 90% confidence
Finding: The trigger examples include broad natural-language phrases such as asking for guitar fretboard resources, which could plausibly appear in ordinary conversation and cause the skill to activate unintentionally. Because this skill immediately redirects users to an external website, accidental invocation can lead to unexpected browsing actions and reduced user control, even though the payload itself is simple.

Natural-Language Policy Violations

Low

Confidence: 80% confidence
Finding: All user-facing description and activation examples are presented only in Chinese, including the natural-language trigger phrases. This may implicitly constrain use to a specific language without stating that the skill is China/Chinese-specific or offering alternative language support.

Static analysis

No suspicious patterns detected.