Security audit

Youtube Public Api

Security checks for vulnerabilities and agentic risk

Overview

This is a coherent read-only YouTube public data connector that uses a disclosed ReplyNodes API key and prepaid credits for public lookups.

Install only if you are comfortable sending YouTube lookup parameters to ReplyNodes and using its prepaid credit model. Store the bearer key only in the agent secret store, monitor credit usage, and revoke or rotate the key if it is exposed.

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 (9)

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 48)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 49)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 50)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 51)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 52)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 53)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 54)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 67)May include surrounding context.
md
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.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 50% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · SKILL.md (reported line 69)May include surrounding context.
md
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.

Static analysis

No suspicious patterns detected.