ClawHub
Back to skill

Security audit

Character Count

Security checks for vulnerabilities and agentic risk

Overview

This skill is a small local character-count helper whose behavior matches its stated purpose and does not show hidden or disproportionate access.

Installers should be aware that the skill may be invoked automatically when an agent is checking text against a character limit. It sends the text only to the local bundled script based on the inspected artifact, but users handling highly sensitive draft text should still confirm when and why counting is being performed.

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
  • 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 (1)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The skill enables implicit invocation without any visible trigger scope, context restriction, or other guardrails. Even though this skill only counts characters, automatic invocation can cause unnecessary or unintended use of the skill in broader workflows, reducing predictability and expanding the attack surface for prompt-routing or tool-selection mistakes.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.