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Security audit

Chart Library

Security checks for vulnerabilities and agentic risk

Overview

This skill is a coherent stock chart research integration that calls Chart Library APIs and does not show hidden persistence, destructive actions, or unrelated data access.

Before installing, understand that chart queries, optional screenshots if used, and any configured Chart Library API key may be sent to chartlibrary.io. Treat outputs as historical research rather than financial advice, and prefer runtimes that restrict this skill's outbound network access to the documented Chart Library endpoints.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

Vague Triggers

Medium
Confidence
88% confidence
Finding
The example query `discover picks` is a short, generic phrase that lacks domain-specific constraints and could plausibly appear in ordinary conversation unrelated to this skill. The README does not provide exclusion conditions or clarify the context in which this phrase should activate the skill.

Lp3

Medium
Category
MCP Least Privilege
Confidence
82% confidence
Finding
The skill declares external network usage via API endpoints and a required status URL, but it does not define any explicit tool scope such as permissions or allowed-tools. This creates an authorization ambiguity where an agent runtime may permit broader network or environment access than the skill actually needs, increasing the risk of unintended outbound requests or misuse of available capabilities.

Static analysis

No suspicious patterns detected.