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Security audit

echo-chamber

Security checks for vulnerabilities and agentic risk

Overview

This is a simple echo skill that repeats user-provided text and does not request tools, credentials, persistence, or external access.

Before installing, understand that the skill may repeat exactly what you provide to it, including sensitive text if you choose to include any. The artifact shows no evidence that it stores, sends, modifies, or accesses anything beyond the text supplied in the request.

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)

Vague Triggers

Medium
Confidence
95% confidence
Finding
The manifest says to use this skill when the user asks to "echo or repeat something," which is a very general activation description that can overlap with ordinary conversational requests. It does not provide tighter trigger constraints, examples, or exclusion conditions to clarify when the skill should or should not activate.

Static analysis

No suspicious patterns detected.