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Security audit

scaffold-mvp

Security checks for vulnerabilities and agentic risk

Overview

This skill visibly scaffolds a new MVP project and does not show hidden, destructive, or exfiltrating behavior.

Install this only for a new repository where you are comfortable letting the agent create project structure, install normal framework packages, run builds, create local documentation, and add repo-local agent harness files. Review the referenced create-agent-harness behavior and ask for English confirmations if you do not understand Portuguese.

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
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • 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
Findings (2)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The skill hard-codes Portuguese for a required user interaction without first checking the user's preferred language or documenting a legitimate locale requirement. This can cause user confusion, invalid consent/approval, and workflow errors when the user does not understand the prompt, especially because explicit approval is a gate before proceeding.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The skill mandates Portuguese confirmation for stack approval as a blocking step, but does not offer opt-in or an alternative language. Because this confirmation controls technical execution, a language mismatch can lead to misunderstood approval, stalled workflows, or the agent proceeding based on ambiguous user responses.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.