Back to skill

Security audit

Novel Writer

Security checks for vulnerabilities and agentic risk

Overview

This Chinese novel-writing skill is mostly purpose-aligned, but it includes unattended hourly writing automation and local file changes that users should review before installing.

Install only if you want this skill to manage a Chinese novel project in the disclosed paths. Before using any scheduled mode, confirm where it will write, how to stop it, and whether each generated chapter and outline update will be reviewed before being saved.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (4)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill advertises very broad activation phrases for generic writing tasks, which can cause it to trigger in situations where the user only wants ordinary writing help. Because the skill also contains automatic file read/write behavior, overbroad activation increases the chance of unintended local file access or modification without clear user intent.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

These instructions direct automatic reads from and writes to multiple local paths, including home-directory and Desktop files, without any warning, consent gate, or confirmation step. This creates a real risk of unintended data exposure, overwriting user content, and exfiltration of sensitive material from unrelated local files under the guise of writing assistance.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The hourly auto-execution instruction enables repeated unattended file modifications, which can amplify accidental corruption, overwrite risks, and unexpected resource use over time. Scheduled autonomous writes are especially dangerous in a skill because they can continue changing local content after the initial interaction without fresh user review.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
80% confidence
Finding

The skill description and title are written entirely in Chinese and present the skill as operating in that language, but they do not state that Chinese is optional or limited to a justified region-specific use case. This can conflict with language-choice policy when users are not given an explicit opt-in or alternative.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.