Back to skill

Security audit

Humanize

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward text-polishing helper that can overwrite explicitly provided text files, so users should review changes but there is no evidence of hidden or malicious behavior.

Install only if you want an agent to rewrite prose in files you explicitly provide. Prefer asking for a diff or preview first, especially for source-adjacent files, documentation, or CLAUDE.md, because the skill is designed to write cleaned text back in place.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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
Findings (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The skill advertises activation on broad phrases like 'clean up the copy' and related everyday editing requests, which can cause unintended invocation outside the user's intended workflow. Mis-triggering can lead to unsolicited rewriting of user content and, combined with write capability, increases the chance of accidental content modification.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill states it reads and rewrites files in place, and later says to write the cleaned version back, but it does not require user confirmation, backup creation, or preview before modification. This is dangerous because a mistaken invocation or over-aggressive rewrite can silently alter documentation or source-adjacent text, causing data loss or unwanted semantic changes.

Content

No source excerpt is available for this finding.