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Security audit

Crypto Tax Calc

Security checks for vulnerabilities and agentic risk

Overview

This skill is a local crypto tax reference script with no apparent credential use, network access, persistence, or hidden execution, though users should verify the tax guidance for their jurisdiction and tax year.

Use this as a quick reference only. Before relying on it for filing or tax planning, confirm the rules against current official guidance for your jurisdiction and tax year or consult a qualified tax professional.

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
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The script presents itself as a general cryptocurrency tax reference while mixing U.S. and non-U.S. rules, thresholds, and interpretations. In a tax guidance skill, this can mislead users into applying the wrong jurisdiction's rules or assuming country-specific statements are universally valid, causing filing errors, penalties, or noncompliance.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.