Back to skill

Security audit

Elixir Performance Review

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly a normal Elixir performance-review checklist, but it requires loading a separate sibling instruction file that is not included in the reviewed package.

Install only if you trust the environment that will provide review-verification-protocol/SKILL.md, or ensure that dependency is bundled, pinned, or otherwise controlled. The included Elixir guidance itself is straightforward and non-executable, but the missing external instruction file can change how agents behave during reviews.

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
Findings (1)

T01 · Skill Instruction Hijacking

Warning
Location
SKILL.md:46
Finding

Mandatory Loading of Untrusted Instructions Outside the Skill Package

Content
View full analysis
Remediation
View remediation
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