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Security audit

backend-developer

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward backend-development guide with no bundled code, hidden execution, persistence, or credential-handling behavior beyond normal backend engineering guidance.

Installers should treat this as a general-purpose backend engineering assistant: it may recommend substantial application changes, migrations, authentication, caching, and deployment work, so use it on repositories where you want that kind of backend implementation assistance and review generated changes before applying them.

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