rules-lawyer

Warn

Audited by Snyk on Apr 21, 2026

Risk Level: MEDIUM
Full Analysis

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (high risk: 0.70). This skill explicitly scrapes and downloads public third-party content — e.g., the SKILL.md's "download-rules" step that scrapes the Comprehensive Rules landing page for MagicCompRules*.txt and the "download-bulk"/"rulings-lookup" steps that fetch Scryfall bulk data — and the agent is required to read and act on that fetched text to produce rule-cited answers, so external content can materially influence tool use and decisions.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

  • Potentially malicious external URL detected (high risk: 0.90). The skill's setup requires running download-rules, which at runtime scrapes the Comprehensive Rules landing page to fetch the MagicCompRules*.txt download URL (the external "MagicCompRules*.txt" download link) and then uses that downloaded CR text verbatim to construct and cite answers, so the fetched remote file directly controls the agent's prompts/outputs.

Issues (2)

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

W012
MEDIUM

Unverifiable external dependency detected (runtime URL that controls agent).

Audit Metadata
Risk Level
MEDIUM
Analyzed
Apr 21, 2026, 11:23 PM
Issues
2