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Security audit

Grammar Checker Ama

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple local AMA grammar checker with no evidence of network access, credential use, persistence, or hidden behavior.

Installers should understand this is a draft local script and verify behavior before using it on sensitive medical text. The current code does not write files or call the network, but the documentation should be tightened to match the implementation.

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)

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
88% confidence
Finding

This markdown file states that the skill reads input files, writes output files, and saves outputs to the workspace, but it presents these as risk-assessment facts rather than a user-facing warning or caution. Under the markdown-specific warning criterion, behavior that can affect user data or the file system should be explicitly disclosed as a warning in the skill description.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.