Security audit

yandun-position-sizer

Security checks for vulnerabilities and agentic risk

Overview

This skill is a small disclosed educational position-sizing calculator with no evidence of hidden access, persistence, network activity, or account-changing behavior.

Installers should treat this as a Chinese-language educational calculator only. Do not rely on its output for real trading or investment decisions, because prices and risk scores are built-in demonstrations rather than live market analysis.

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: 97% confidence
Finding: The file uses Chinese in the module docstring, embedded labels, and output text, and there is no option for the user to select another language or locale. This is a natural-language policy concern because the skill imposes a specific language by default rather than offering opt-in or documenting a region-specific constraint.
Content: No source excerpt is available for this finding.