ClawHub

Youtube Knowledge Extractor

Security checks across malware telemetry and agentic risk

Overview

This skill does what it says: it helps analyze YouTube videos by downloading transcripts, video data, and frames locally, with no evidence of hidden persistence or data exfiltration.

Install only if you are comfortable with the agent downloading YouTube content and creating temporary transcripts, videos, and frame images on your machine. Avoid using browser-cookie access unless you explicitly want the agent to use your authenticated YouTube session for a video you are authorized to view.

SkillSpector

By NVIDIA
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 (3)

Context-Inappropriate Capability

Medium
Confidence
95% confidence
Finding
The documentation explicitly suggests using `--cookies-from-browser` to access age-restricted or private videos, which encourages the agent to leverage a user's authenticated browser session to retrieve content beyond the originally shared public resource. In this context, that expands the skill from simple analysis into access-enablement for restricted content, increasing the risk of unauthorized data access and privacy violations.

Vague Triggers

Medium
Confidence
83% confidence
Finding
The trigger condition is broad enough that the skill may activate on nearly any YouTube URL accompanied by vague analysis intent, increasing the chance of unexpected network access, downloading, and processing without sufficiently specific user authorization. In agent systems, overly broad activation can cause the wrong tool to run automatically on sensitive or unintended inputs.

Missing User Warnings

Medium
Confidence
91% confidence
Finding
The skill instructs the agent to fetch remote resources and write transcripts, videos, and extracted frames into a temporary working directory, but it does not clearly require notifying the user that downloads and local storage will occur. That omission can lead to privacy surprises, unnecessary retention of potentially sensitive media, and policy violations in environments where users expect read-only analysis.

VirusTotal

65/65 vendors flagged this skill as clean.

View on VirusTotal