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Security audit

Calendar Handoff Reader and Coordination Calendar Desk

Security checks for vulnerabilities and agentic risk

Overview

This skill is a narrow calendar-coordination helper with no evidence of hidden execution, credential use, private-file access, or persistence beyond creating the requested calendar output.

Before installing, consider that the skill is intended to transform meeting handoff data into a calendar artifact or entry, so users should review the generated calendar details before adding them to a real calendar. I found no artifact evidence of hidden code, credential access, private-file reading, or remote execution.

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
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

Static analysis

No suspicious patterns detected.