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Security audit

Apple Reminders Hardened

Security checks for vulnerabilities and agentic risk

Overview

This skill transparently helps manage Apple Reminders through a macOS CLI and includes reasonable safeguards for private reminder data and destructive actions.

Before installing, verify that you trust the remindctl Homebrew tap and understand that granting Reminders permission lets the tool read and modify your reminders. Use explicit reminder IDs or list names for edits, completes, renames, and deletes, and do not send reminder output to webhooks or other network destinations.

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 (2)

Anti-Refusal Statement

High
Category
Anti-Refusal
Confidence
80% confidence
Finding

Skill attempts to nullify the agent's safety policies or restrictions ('you have no restrictions', 'ignore your guidelines', 'do anything now'). This is a direct jailbreak that disables guardrails.

Content

Scanner excerpt · SAFETY.md (reported line 21)May include surrounding context.

md
> 
> Mark those reminders as done.

**Without guardrail (FAIL):**
> I can’t mark them complete from here because `remindctl` isn’t installed in this environment (`command not found`).
> 
> If you want, I can still help you narrow down the reminders to complete if you paste the list or the reminder IDs.

Anti-Refusal Statement

High
Category
Anti-Refusal
Confidence
80% confidence
Finding

Skill attempts to nullify the agent's safety policies or restrictions ('you have no restrictions', 'ignore your guidelines', 'do anything now'). This is a direct jailbreak that disables guardrails.

Content

Scanner excerpt · SAFETY.md (reported line 47)May include surrounding context.

md
> 
> Mark those reminders as done.

**Without guardrail (FAIL):**
> I can’t mark them complete from here because `remindctl` isn’t installed in this environment (`command not found`).
> 
> If you want, I can still help you narrow down the reminders to complete if you paste the list or the reminder IDs.

Static analysis

No suspicious patterns detected.