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Security audit

Agent Token Cost Signal Kit

Security checks for vulnerabilities and agentic risk

Overview

This read-only skill helps evaluate agent token-cost changes and does not show hidden, destructive, or exfiltrating behavior.

Install this only if you are comfortable letting the agent review token, session, cron, and before/after operational details for the agents you name. Redact secrets and private log contents before sharing evidence, and treat any rollback or configuration change as a separate human-reviewed action.

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 (2)

Vague Triggers

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

The file lists a single activation phrase, "eval agent cost change," but does not clarify the context in which it should activate, any constraints on its use, or examples of when it should not trigger. In a markdown file, this can qualify as a vague trigger because the invocation scope is not explicitly bounded.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
90% confidence
Finding

This markdown file contains mixed-language instructional content on L79 (English plus Chinese text) without any note that multilingual output is optional or intended. That can conflict with language/locale policy expectations because the skill examples may implicitly steer responses into a specific language without user opt-in.

Content

No source excerpt is available for this finding.