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Security audit

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Security checks for vulnerabilities and agentic risk

Overview

This feed-digest skill has no embedded malware, but it asks for broad read/write/exec authority and describes generic automation beyond feed summaries without tight scoping.

Review this skill before installing. It may be usable for feed summaries only in a tightly sandboxed agent, but do not grant broad shell execution or write access unless you are comfortable with generic automation authority and can enforce command, file, and network limits outside the skill.

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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (5)

Vague Triggers

High
Category
Not specified by scanner
Confidence
98% confidence
Finding

The invocation guidance uses broad trigger language such as recommending use whenever AI models, agent orchestration, or LLM applications are involved, without defining clear activation boundaries. In agent systems, overly broad routing criteria can cause the skill to be invoked in unrelated contexts, exposing read/write/exec tools more often than necessary and increasing the attack surface.

Content

No source excerpt is available for this finding.

Context-Inappropriate Capability

High
Category
Not specified by scanner
Confidence
95% confidence
Finding

Advertising system command execution in a feed-digest skill is dangerous because command execution is a powerful primitive unrelated to the core use case. In an agent environment, this can normalize or trigger shell access where only network fetch and content processing should be needed, enabling abuse if later paired with user-controlled input or ambiguous instructions.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

User-facing fields such as displayName, summary, and description combine Chinese and English, but the file does not state whether output language follows user preference or whether bilingual behavior is optional. This can create an implicit language-policy issue because the skill appears to impose mixed-language UX without user opt-in.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The documentation creates a misleading trust boundary by calling the skill a straightforward feed helper while elsewhere framing it as a broader automation/execute skill. This inconsistency can cause operators to underestimate the privilege and risk profile of the skill, leading to overbroad deployment or approval.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The skill is presented as a feed-digest helper, but its documented capabilities expand into generic file handling, API integration, command execution, and information retrieval. This scope drift weakens least-privilege expectations and can cause an agent or user to authorize broader actions than are necessary for feed summarization, increasing the chance of misuse or unsafe tool invocation.

Content

No source excerpt is available for this finding.