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Security audit

checkpoint

Security checks for vulnerabilities and agentic risk

Overview

This skill is a small checkpoint-writing helper whose local file creation is disclosed and fits its purpose.

Install only if you want agents to create or update a local CHECKPOINT.md for resumable work. For sensitive projects, specify the destination and review the checkpoint so it does not preserve secrets, private transcript details, or unnecessary confidential material.

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

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

This markdown file instructs the skill to perform a file write operation, which falls under the missing user warnings category for markdown files. Although the behavior is described procedurally, it does not explicitly warn the user about modifying files in their workspace or that the default location is the working directory.

Content

No source excerpt is available for this finding.