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Security audit

Zsh Themes

Security checks for vulnerabilities and agentic risk

Overview

The skill does not appear to steal data or run harmful commands, but it is materially mislabeled: a Zsh themes reference mostly returns generic infrastructure guidance unrelated to Zsh themes.

Install only if you are comfortable with a low-specificity reference skill. It does not show evidence of credential theft or system modification, but its Zsh theme labeling is misleading enough that agents may surface irrelevant operational advice when you expect shell-theme guidance.

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
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • 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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (3)

Credential Access

High
Category
Privilege Escalation
Confidence
70% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · scripts/script.sh (reported line 64)May include surrounding context.

sh
## Prerequisites
- Basic understanding of devtools concepts
- Required tools and access credentials
- System meeting minimum requirements

## Installation

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The top-level description claims this is a zsh-themes reference tool, but the embedded material discusses broad service-management, networking, migration, and security topics instead. In an agent skill ecosystem, deceptive or mislabeled capabilities increase the risk of misuse, bad operator decisions, and trust abuse because consumers rely on metadata to select appropriate tools.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The script presents itself as a Zsh Themes reference tool, but nearly all command output is generic devtools and infrastructure guidance unrelated to zsh themes. This mismatch can mislead users and downstream agents into trusting irrelevant or unsafe advice in the wrong operational context, which is a supply-chain integrity problem even without code execution.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.