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Security audit

Cron Worker Guardrails

Security checks for vulnerabilities and agentic risk

Overview

This is a Markdown-only guardrail skill for cron and background-worker reliability, with no hidden code, dependency installation, exfiltration, or persistence behavior found.

Review the skill as reliability guidance for unattended jobs, not as a complete implementation. The referenced files under references/ are not present in this artifact, so users should not assume extra hardening material is installed. Use exec-enabled workflows only in repos you intend the agent to inspect or modify.

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
  • 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
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

This markdown includes substantial natural-language content in Chinese for core capability, scenarios, differentiation, and trigger keywords, while other sections are in English. The file does not indicate that the skill is region-specific or give users an option to choose language, which can violate a language/locale policy requiring user opt-in.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

The manifest description and scope sections frame the skill as POSIX-focused hardening guidance for OpenClaw cron/background workers, especially bash/sh usage. Later documentation expands applicability to Windows and arbitrary AI agent platforms, which broadens the advertised behavior beyond the manifest's stated scope.

Content

No source excerpt is available for this finding.