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Security audit

Recipe Reschedule Meeting

Security checks for vulnerabilities and agentic risk

Overview

This recipe transparently reschedules a Google Calendar event and notifies attendees, which matches its stated purpose.

Install or use this only when you intend to modify a real Google Calendar event and notify all attendees. Before running the patch command, verify the event ID, start time, end time, timezone, and whether attendee notifications are desired.

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
95% confidence
Finding
The skill performs a calendar event patch with `sendUpdates: "all"`, which will automatically notify every attendee, but the description and steps do not clearly warn the user about this side effect at the point of action. This can cause unintended external communications, accidental disclosure of scheduling changes, and operational disruption if a user runs the recipe assuming it only edits their own calendar.

Static analysis

No suspicious patterns detected.