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Security audit

List Growth Designer

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed email-list growth planning assistant with limited, purpose-aligned memory writes that require user confirmation.

Before installing, understand that this skill can help prepare email list growth plans and consent-capture specifications, and may save those plans to memory after you approve. Review any jurisdiction-specific marketing compliance advice with qualified counsel before launch.

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 · SKILL.md (reported line 71)May include surrounding context.

md
## Save Results

On user confirmation, save to `memory/email/list-growth-designer/YYYY-MM-DD-<audience-or-goal>-growth-plan.md` — see [Skill Contract](../../../references/skill-contract.md) §Save Results Template. Submit the consent-capture spec to `memory/events/consent.ndjson` via an authorized `operation: propose` request to `registry-events.py` for consent-registry. Do not write memory without asking.

## Reference Materials

Static analysis

No suspicious patterns detected.