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Security audit

Nimble

Security checks for vulnerabilities and agentic risk

Overview

This is a documentation-only Nimble scooter helper skill with no executable code, persistence, credential handling, or hidden behavior found.

Installers should understand that this skill is written for Chinese-language use and includes user-facing commands for scooter configuration and reset; review those device actions before using them, but the package itself is documentation-only and shows no unsafe execution behavior.

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
  • 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 (1)

Natural-Language Policy Violations

Medium
Confidence
93% confidence
Finding
The manifest description, headings, and all example commands are written in Chinese, including required invocation phrases such as `Nimble 连接` and `Nimble 状态`. This indicates a language-specific interaction model without any user opt-in, alternative locale, or explanation that the skill is intentionally limited to a Chinese-speaking region.

Static analysis

No suspicious patterns detected.