Security audit

my_skill

Security checks for vulnerabilities and agentic risk

Overview

This artifact is a simple skill-list note with no commands, code execution, persistence, credential access, or hidden behavior.

This appears safe to install from a security perspective, though it is more of a personal skills checklist than an operational Codex skill. Users who prefer a single-language skill may want the final note translated, but it does not affect security.

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

Low

Category: Not specified by scanner
Confidence: 86% confidence
Finding: The note on L25 is written in Chinese, while the rest of the file is in English. This can be a language/locale policy issue when a skill forces a specific language without user opt-in or explanation.
Content: No source excerpt is available for this finding.