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Security audit

Doc Coauthoring

Security checks for vulnerabilities and agentic risk

Overview

This is a plain Markdown writing-workflow skill with no executable code or hidden access; only minor scope and language clarity notes were found.

This skill is appropriate if you want an agent to guide structured document drafting and review. Before installing, note that it may be invoked for substantial writing or editing requests, and some metadata/example text is in Chinese, but the artifact does not ask for filesystem, credential, network, persistence, or mutation authority.

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
Vulnerability Patterns
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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 (3)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill description is very broad and can match many generic writing or editing requests, which increases the chance of unintended auto-activation outside the user's actual intent. Over-broad activation can cause workflow hijacking, unnecessary instruction injection into unrelated tasks, and reduced user control over how responses are structured.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The instruction at L1 is written as a directive to conduct the interaction in Chinese, and the file does not provide any option for the user to choose another language. This is a natural-language policy concern because it imposes a language constraint without explicit opt-in or justification.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
87% confidence
Finding

The English description includes Chinese text ("Follow/关注作者:微信公众号...") embedded in the main skill metadata. This introduces a language-specific element into the user-facing description without indicating that language choice is optional or justified by a region-specific purpose.

Content

No source excerpt is available for this finding.