anything2explainer

anything2explainer Security Hardening Guide

Least-privilege permissions

• Restrict TTS API credentials: Use separate, read-only API keys for voice generation services (ElevenLabs, etc.) instead of master account credentials. Rotate keys every 30 days and revoke immediately if a key is suspected exposed.
• Sandbox the video renderer: Run Remotion (the video drawing engine) in a containerized environment with CPU and memory limits to prevent one malicious topic from consuming all system resources or accessing other applications.
• Limit file storage access: Grant the skill permission to write videos only to a specific, isolated folder—not system directories or shared storage—and delete files older than 48 hours automatically.
• No sensitive data in topics: Instruct users never to input personal information, credentials, or confidential business data as topic input, since it will be embedded in the video file and potentially logged.

Network isolation

• Block outbound calls except to approved APIs: Configure firewall rules so the skill can only reach required TTS and video delivery services; block all other internet access.
• Use API gateways or proxies: Route all third-party API requests through your own managed gateway to inspect, log, and rate-limit calls before they leave your network.
• No direct cloud logging: Ensure generated videos are not automatically uploaded to shared cloud storage (Dropbox, Drive, etc.) unless explicitly approved by your security team.

Monitoring

• Log all topic inputs and video outputs: Record what topic was submitted, who submitted it, when, and the resulting video file name—but never log the full video content itself.
• Alert on unusual patterns: Set up automated warnings if one user generates >20 videos in an hour, or if a topic contains suspicious code syntax (brackets, semicolons, code keywords).
• Track API usage: Monitor TTS and Remotion service calls for spikes or unexpected geographic origins that may indicate credential compromise.
• Version the skill: Keep a record of which version of the "anything2explainer" code is running; check for security updates from the maintainer weekly.

Red flags to watch for

• Single maintainer, slow updates: If the repository shows no security patches in the last 3+ months, or the maintainer is unresponsive to issues, consider pausing use until the project is actively maintained.
• Topics that look like code: Watch for inputs containing {, }, import, require, brackets, or symbols—these may be prompt injection attempts to execute unintended code during rendering.
• Unexpected video file sizes: If a video output is much larger than normal (>500 MB) or generates unusually fast despite complex topic, it may indicate resource exhaustion or a rendering error.
• Failed authentication or API quota errors: Repeated TTS or rendering failures could signal a compromised API key; pause the skill and rotate credentials immediately if this occurs.