Back to skill

Security audit

Happy Horse Workflow Architect

Security checks for vulnerabilities and agentic risk

Overview

This is a text-only planning skill for Happy Horse video workflows, with no executable code or hidden local access behavior found.

This appears safe to install for users who want structured Happy Horse video prompt and workflow planning. It may direct users to public Happy Horse pages, but it does not include executable components or request local credentials or private data access.

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
Vulnerability Patterns
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 11)May include surrounding context.

md
- Demo: https://happy-horse.pro/ai-video-generator
- Create: https://happy-horse.pro/create
- Pricing: https://happy-horse.pro/pricing
- Raw SKILL.md: https://happy-horse.pro/skills/happy-horse-video-workflow-architect/SKILL.md
- Product guide: https://happy-horse.pro/blog/what-is-happy-horse

## What it does

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · SKILL.md (reported line 21)May include surrounding context.

md
- Demo: https://happy-horse.pro/ai-video-generator
- Create: https://happy-horse.pro/create
- Pricing: https://happy-horse.pro/pricing
- Raw SKILL.md: https://happy-horse.pro/skills/happy-horse-video-workflow-architect/SKILL.md
- Product guide: https://happy-horse.pro/blog/what-is-happy-horse

## What it does

Static analysis

No suspicious patterns detected.