Security audit

Cn Timestamp Converter

Security checks for vulnerabilities and agentic risk

Overview

This is a small Chinese-language timestamp conversion skill with no evidence of hidden access, persistence, network activity, or destructive behavior.

Installers should expect Chinese-language output labels and date formatting. The skill appears safe for simple local timestamp conversion and does not show sensitive access or hidden behavior.

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

MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
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)

Natural-Language Policy Violations

Low

Category: Not specified by scanner
Confidence: 95% confidence
Finding: The returned object always includes a readable field formatted with Chinese date characters (年, 月, 日). This imposes a specific language/locale in user-facing output without offering a choice or documenting that the skill is intended only for that locale.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.