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Security audit

Pytest Code Review

Security checks for vulnerabilities and agentic risk

Overview

This skill is a pytest test-review checklist made of Markdown guidance, with no hidden execution, persistence, or unrelated data access.

Installers should understand that this skill will guide an agent to inspect pytest test files and cite review findings. It does not itself run commands or modify files, but normal code review use may involve reading the relevant test files the user asks the agent to review.

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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • 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 (1)

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
75% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · references/mocking.md (reported line 49)May include surrounding context.

md
mock_db.insert.return_value = {"id": 1}

    await create_user(mock_db, "Alice")
    # No verification! Did it call insert? With what args?

# GOOD - verify mock calls
@pytest.mark.asyncio

Static analysis

No suspicious patterns detected.