Security audit

Youtube Public Api

Security checks across malware telemetry and agentic risk

Overview

This skill is a disclosed read-only connector for public YouTube data through ReplyNodes, with no evidence of hidden writes, persistence, or unsafe local behavior.

Install only if you are comfortable sending YouTube query, video, channel, playlist, comment, or transcript requests to ReplyNodes and spending prepaid credits. Store the ReplyNodes key only in the agent secret store and monitor transcript calls because they cost substantially more credits than standard reads.

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

Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (7)

External Transmission

Medium

Category: Data Exfiltration
Content: Every operation is an HTTP GET and reads public data only: - `search` — `GET https://api.replynodes.com/v1/youtube/search`. Search public YouTube videos This operation costs 2 prepaid credits. - `video` — `GET https://api.replynodes.com/v1/youtube/video/{id}`. Fetch public YouTube video metadata This operation costs 2 prepaid credits. - `channel` — `GET https://api.replynodes.com/v1/youtube/channel/{id}`. Fetch public YouTube channel metadata This operation costs 2 prepaid credits. - `comments` — `GET https://api.replynodes.com/v1/youtube/comments/{id}`. Fetch public top-level video comments This operation costs 2 prepaid credits.
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium

Category: Data Exfiltration
Content: Every operation is an HTTP GET and reads public data only: - `search` — `GET https://api.replynodes.com/v1/youtube/search`. Search public YouTube videos This operation costs 2 prepaid credits. - `video` — `GET https://api.replynodes.com/v1/youtube/video/{id}`. Fetch public YouTube video metadata This operation costs 2 prepaid credits. - `channel` — `GET https://api.replynodes.com/v1/youtube/channel/{id}`. Fetch public YouTube channel metadata This operation costs 2 prepaid credits. - `comments` — `GET https://api.replynodes.com/v1/youtube/comments/{id}`. Fetch public top-level video comments This operation costs 2 prepaid credits. - `playlist` — `GET https://api.replynodes.com/v1/youtube/playlist/{id}`. Fetch public playlist metadata and items This operation costs 2 prepaid credits.
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium

Category: Data Exfiltration
Content: - `search` — `GET https://api.replynodes.com/v1/youtube/search`. Search public YouTube videos This operation costs 2 prepaid credits. - `video` — `GET https://api.replynodes.com/v1/youtube/video/{id}`. Fetch public YouTube video metadata This operation costs 2 prepaid credits. - `channel` — `GET https://api.replynodes.com/v1/youtube/channel/{id}`. Fetch public YouTube channel metadata This operation costs 2 prepaid credits. - `comments` — `GET https://api.replynodes.com/v1/youtube/comments/{id}`. Fetch public top-level video comments This operation costs 2 prepaid credits. - `playlist` — `GET https://api.replynodes.com/v1/youtube/playlist/{id}`. Fetch public playlist metadata and items This operation costs 2 prepaid credits. - `related` — `GET https://api.replynodes.com/v1/youtube/related/{id}`. Fetch related public videos This operation costs 2 prepaid credits.
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium

Category: Data Exfiltration
Content: - `search` — `GET https://api.replynodes.com/v1/youtube/search`. Search public YouTube videos This operation costs 2 prepaid credits. - `video` — `GET https://api.replynodes.com/v1/youtube/video/{id}`. Fetch public YouTube video metadata This operation costs 2 prepaid credits. - `channel` — `GET https://api.replynodes.com/v1/youtube/channel/{id}`. Fetch public YouTube channel metadata This operation costs 2 prepaid credits. - `comments` — `GET https://api.replynodes.com/v1/youtube/comments/{id}`. Fetch public top-level video comments This operation costs 2 prepaid credits. - `playlist` — `GET https://api.replynodes.com/v1/youtube/playlist/{id}`. Fetch public playlist metadata and items This operation costs 2 prepaid credits. - `related` — `GET https://api.replynodes.com/v1/youtube/related/{id}`. Fetch related public videos This operation costs 2 prepaid credits. - `transcript` — `GET https://api.replynodes.com/v1/youtube/transcript/{id}`. Fetch a public video transcript when available This operation costs 200 prepaid credits.
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium

Category: Data Exfiltration
Content: - `video` — `GET https://api.replynodes.com/v1/youtube/video/{id}`. Fetch public YouTube video metadata This operation costs 2 prepaid credits. - `channel` — `GET https://api.replynodes.com/v1/youtube/channel/{id}`. Fetch public YouTube channel metadata This operation costs 2 prepaid credits. - `comments` — `GET https://api.replynodes.com/v1/youtube/comments/{id}`. Fetch public top-level video comments This operation costs 2 prepaid credits. - `playlist` — `GET https://api.replynodes.com/v1/youtube/playlist/{id}`. Fetch public playlist metadata and items This operation costs 2 prepaid credits. - `related` — `GET https://api.replynodes.com/v1/youtube/related/{id}`. Fetch related public videos This operation costs 2 prepaid credits. - `transcript` — `GET https://api.replynodes.com/v1/youtube/transcript/{id}`. Fetch a public video transcript when available This operation costs 200 prepaid credits.
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium

Category: Data Exfiltration
Content: - `channel` — `GET https://api.replynodes.com/v1/youtube/channel/{id}`. Fetch public YouTube channel metadata This operation costs 2 prepaid credits. - `comments` — `GET https://api.replynodes.com/v1/youtube/comments/{id}`. Fetch public top-level video comments This operation costs 2 prepaid credits. - `playlist` — `GET https://api.replynodes.com/v1/youtube/playlist/{id}`. Fetch public playlist metadata and items This operation costs 2 prepaid credits. - `related` — `GET https://api.replynodes.com/v1/youtube/related/{id}`. Fetch related public videos This operation costs 2 prepaid credits. - `transcript` — `GET https://api.replynodes.com/v1/youtube/transcript/{id}`. Fetch a public video transcript when available This operation costs 200 prepaid credits. ## Request and response behavior
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium

Category: Data Exfiltration
Content: - `comments` — `GET https://api.replynodes.com/v1/youtube/comments/{id}`. Fetch public top-level video comments This operation costs 2 prepaid credits. - `playlist` — `GET https://api.replynodes.com/v1/youtube/playlist/{id}`. Fetch public playlist metadata and items This operation costs 2 prepaid credits. - `related` — `GET https://api.replynodes.com/v1/youtube/related/{id}`. Fetch related public videos This operation costs 2 prepaid credits. - `transcript` — `GET https://api.replynodes.com/v1/youtube/transcript/{id}`. Fetch a public video transcript when available This operation costs 200 prepaid credits. ## Request and response behavior
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

VirusTotal

64/64 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.