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Security audit

myfood-by

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward food inventory and meal recommendation helper that only stores and edits a local inventory markdown file for its stated purpose.

Install this if you are comfortable with the agent keeping a local food inventory file and removing items from it when you say they are eaten. Do not put private health details into inventory entries; provide dietary needs only when asking for recommendations.

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 (2)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The skill explicitly instructs persistent writes to and deletions from a local markdown file, but it does not clearly warn the user that local files will be modified as a side effect of normal use. This creates a consent and integrity risk: users may not realize data is being stored locally, and an agent following the skill could overwrite or remove records without sufficiently explicit confirmation or safeguards.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
85% confidence
Finding

The skill's name, description, and operating instructions are entirely in Chinese, with no indication that users may choose another language or that the skill is intentionally limited to a Chinese-speaking context. This can violate language/locale policy when a skill implicitly forces a specific language without user opt-in.

Content

No source excerpt is available for this finding.