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Security audit

Image Prompt Engineer

Security checks for vulnerabilities and agentic risk

Overview

This is a text-only image prompt writing skill with no hidden execution, persistence, credential use, or data access.

This skill appears safe to install for image-prompt assistance. Be aware that it will default to Midjourney and English prompt text unless you ask otherwise, and its built-in style examples may influence outputs unless you specify a different aesthetic.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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 (5)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The skill description is broad enough to activate on many generic creative or image-related requests, which can cause incorrect routing and unintended use of this skill outside its intended scope. In an agent system, over-broad dispatch increases the chance of prompt interception, policy bypass by misclassification, or degraded handling by stealing requests from more appropriate specialized skills.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The instruction requires the final prompt text to be in English unless the user explicitly requests another language. This imposes a language choice by default rather than offering the user a neutral language option or opt-in, which fits the locale/language policy violation criteria.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The default invocation phrase is very generic and closely matches ordinary user requests about creating or refining image prompts. This can cause the skill to trigger unexpectedly on routine conversation, expanding its scope without clear user intent and increasing the chance of prompt-routing misuse or accidental delegation.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
81% confidence
Finding

The phrase "soft diffuse North-European daylight" recommends a specific regional locale aesthetic as a default prompt ingredient. Because the guide does not frame this as optional user preference or offer alternatives, it can be read as imposing a locale-specific style without opt-in.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

The sample prompt uses "North-European daylight," which hard-codes a regional/locale-specific aesthetic in natural language. The file does not indicate that this should only be used when the user wants that style, so it may violate language/locale choice expectations.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.