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Security audit

Alter Actions

Security checks for vulnerabilities and agentic risk

Overview

This skill is a documented macOS shortcut-style bridge for triggering Alter actions, with privacy caveats around selected content but no artifact-backed malicious behavior.

Install only if you are comfortable sending selected text or files to Alter actions. Avoid invoking it on sensitive email, private documents, code, or business data unless you trust Alter and understand which connected services the chosen action uses.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • 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
Confidence
92% confidence
Finding
The skill explicitly notes that actions operate on currently selected text/files in Alter, but it does not clearly disclose that triggering an action may send that selected content into Alter workflows and potentially to external AI or web-backed processing. This creates a meaningful data exposure risk because users may invoke the skill assuming it is only local URL routing, while sensitive clipboard, document, email, or code content could be processed outside the local environment.

Static analysis

No suspicious patterns detected.