plugin-security-scan

Scan plugin markdown for prompt injection, credential exfiltration, and privilege escalation threats.

520|175|Updated Apr 8, 2026
One-click install
npx skills add https://github.com/evolution-foundation/evo-nexus --skill plugin-security-scan
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: plugin-security-scan
Source: https://github.com/evolution-foundation/evo-nexus/tree/main/.claude/skills/plugin-security-scan
Command: npx skills add https://github.com/evolution-foundation/evo-nexus --skill plugin-security-scan

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It helps prevent unsafe or malicious behavior in plugin/skill content by detecting prompt injection, credential exfiltration, and privilege-escalation instructions that simple regex checks can miss.

Core Features & Use Cases

  • Semantic threat detection: Identifies instruction-level prompt injection patterns, including system-prompt override attempts and persona replacement.
  • Credential exfiltration risk spotting: Flags directives to read or transmit secrets via commands or file path targeting (e.g., .env, .ssh).
  • Privilege escalation detection: Detects claims or directives that expand authority beyond the intended sandbox/scope.

Quick Start

Ask your EvoNexus plugin install gate to run the plugin-security-scan on the provided plugin markdown files to receive a strict JSON verdict and findings.

Frequently Asked Questions about plugin-security-scan

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I scan plugin markdown for prompt injection before activation?

To scan plugin markdown for prompt injection, submit the plugin files to an automated security gate for semantic analysis. The scan detects instruction-level system-prompt override attempts and persona replacement patterns that simple regex checks miss.

What is semantic threat detection for plugin validation?

Semantic threat detection for plugin validation identifies malicious instructions embedded in plugin documentation by analyzing for credential exfiltration, privilege escalation, and prompt injection. It returns categorized severities and a JSON verdict to block or warn during installs.

How do I detect credential exfiltration risks in plugin documentation?

Detecting credential exfiltration risks in plugin documentation involves analyzing markdown for directives that read or transmit secrets via file path targeting, such as .env or .ssh references. The scan flags these attempts and returns strict JSON findings.

Can I use semantic security scanning for an automated plugin install gate?

Yes, you can use semantic security scanning for an automated plugin install gate. The scan evaluates plugin markdown content and returns a strict JSON verdict with categorized severities that either blocks or warns based on your configured thresholds.

Does regex scanning catch privilege escalation instructions in plugins?

Regex scanning does not reliably catch privilege escalation instructions in plugins, as it misses semantic context. Semantic analysis detects directives that expand authority beyond an intended sandbox scope, identifying threats that pattern matching cannot.

What JSON output format does a plugin security scan return?

A plugin security scan returns strict JSON output containing categorized threat severities and a final verdict. This structured output enables automated install gates to programmatically block or warn based on configured security thresholds.