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Security audit

Deduplicator

Security checks for vulnerabilities and agentic risk

Overview

This skill only gives session-scoped instructions for filtering duplicate list items and links, with no code execution, external access, or persistence beyond the current conversation.

Before installing, understand that the skill may automatically omit repeated items during list-processing tasks and uses Chinese duplicate/reset messages by default. It does not appear to access external systems or store data beyond the active session.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (3)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description in L03 requires the reset command to be '重置去重', and later lines define duplicate-return messages in Chinese, while the rest of the document is in English. This creates a language policy issue because the skill appears to require a specific language without user opt-in or justification.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

Line L23 says to 'simply include the items you want to check in your request' and that the skill will 'automatically' filter duplicates, but it does not define a specific invocation phrase, boundary, or exclusion condition. This ambiguity could cause unintended activation during ordinary conversation about lists or links.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

Line L25 instructs users to issue the command '重置去重' to reset the session, but no alternative language option is provided. Requiring a single language command can violate language/locale policy when the skill otherwise targets general users.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.