Security audit

SwiftButler

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward SwiftButler CLI guide, with disclosed source-formatting behavior and no hidden code or persistence.

Before using recursive reindent or distribute commands, run dry-run where available and review version-control diffs, because these commands can rewrite or create Swift source files by design.

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)

Missing User Warnings

Medium

Category: Not specified by scanner
Confidence: 92% confidence
Finding: The skill recommends butler reindent as a normal workflow and shows multiple in-place examples, but it does not clearly warn that the command rewrites source files unless --dry-run is used. In an agent setting, this can cause unintended modification of user code or large-scale workspace churn when the user only expected analysis or preview behavior.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.