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Security audit

QuickNote Timestamp

Security checks for vulnerabilities and agentic risk

Overview

This skill does only what it says: append a timestamped note to a local markdown file.

Install this if you want quick persistent notes in your workspace. Be aware that vague note-taking requests may cause the agent to append to or create notes.md unless you specify another file or ask before writing.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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
Findings (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The skill description is broad enough to match routine requests about jotting down thoughts or reminders, which increases the chance of over-invocation. Because the skill writes to the local filesystem, overly broad triggering can cause unintended file creation or modification without the user clearly intending a persistence action.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
96% confidence
Finding

The usage text says to pick or create a target file and append a note, but it does not clearly warn the user that the skill will modify or create a local file as a side effect. This can mislead users about persistence and cause accidental writes, especially when invoked from general note-taking requests.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.