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Security audit

Linked List Practice Helper

Security checks for vulnerabilities and agentic risk

Overview

This is a simple linked-list practice helper with overly broad activation wording, but it does not request sensitive access, run code, persist changes, or move data.

Before installing, be aware that this helper may activate for broad words like add, linked, or list. It appears safe from a security standpoint, but narrowing its triggers would improve reliability and reduce accidental use in unrelated tasks.

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 (4)

Vague Triggers

High
Category
Not specified by scanner
Confidence
98% confidence
Finding

The skill description says to use the skill for very broad terms such as 'general-help' and 'add', which are common across many unrelated requests. This can cause unintended activation and routing of user tasks into an irrelevant skill, increasing the chance of incorrect guidance, prompt interference, or misuse of downstream workflows.

Content

No source excerpt is available for this finding.

Vague Triggers

High
Category
Not specified by scanner
Confidence
99% confidence
Finding

The keyword list includes vague single-word triggers like 'add', 'frequently', 'asked', 'linked', and 'list', which are likely to appear in many benign conversations. In a skill-routing system, such low-specificity triggers can fire accidentally, causing overbroad invocation and making the assistant easier to steer into the wrong behavior or context.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill enables allow_implicit_invocation without any visible activation constraints, so the agent may trigger this skill from loosely related user requests. Overly broad auto-invocation can cause unintended routing, prompt-scope expansion, and increased exposure to adversarial or irrelevant inputs, which is a real security and reliability concern even for a seemingly benign educational skill.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The trigger sentence is broad enough that ordinary user requests like 'Help me add frequently asked Linked List problems...' could activate this skill outside a clearly scoped invocation path. Overbroad triggers can cause unintended routing, making the agent apply this skill in contexts where it is not the best match and potentially override safer or more appropriate behaviors.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.