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Security audit

Health Check

Security checks for vulnerabilities and agentic risk

Overview

This is a disclosed health-check skill that runs basic system checks, writes a local report, and sends it to Feishu, with no bundled code or hidden execution behavior.

Before installing, configure the Feishu target deliberately and keep the report content limited to operational health signals. Avoid including secrets, full log excerpts, host identifiers, or unrelated application data in reports, and set a retention policy for data/exec-logs if the environment is sensitive.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • 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 (3)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The skill explicitly requires sending the generated health-check report via Feishu and storing it under a local exec-logs path, but it provides no warning, consent boundary, or guidance on what data may be included. Because health-check reports and recent error logs can contain sensitive operational details, this creates a real risk of unintended data exfiltration to chat recipients and unnecessary local persistence of sensitive system information.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

The title and content specify the skill documentation entirely in Chinese (e.g., '详细规范'), which imposes a language choice without indicating that users may opt into another language. The policy explicitly flags language or locale constraints when they are forced rather than optional or justified.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
90% confidence
Finding

The natural-language instructions and description are entirely in Chinese, which can amount to forcing a specific language without user opt-in. The policy allows locale constraints when they are explicitly justified or when the user is offered a language choice, neither of which is present here.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.