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Security audit

TypeScript

Security checks for vulnerabilities and agentic risk

Overview

This is a TypeScript style-guide skill with broad but disclosed activation and no evidence of hidden code, data access, persistence, or unsafe actions.

Install this if you want TypeScript style guidance to apply automatically. Be aware that it may activate on casual TypeScript mentions, so users who prefer explicit opt-in behavior may want narrower activation wording, but no hidden or high-impact behavior was found.

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 (3)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill is configured to activate whenever a user says or merely implies 'TypeScript', which is an overly broad trigger for a prompt-based skill. Broad auto-activation can cause the skill to inject its instructions into unrelated conversations, increasing the chance of prompt-scope interference, accidental invocation, or untrusted context being treated as a coding request.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The skill is configured to activate whenever the user says or implies 'TypeScript', which is a very broad trigger likely to fire during ordinary discussion rather than explicit invocation. This can cause unsolicited style-guide behavior to override user intent, create prompt-routing confusion, and increase the chance that the skill influences unrelated tasks.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The natural-language activation section states that simply mentioning TypeScript activates the skill, but it does not define boundaries for context, intent, or precedence. In a multi-skill or instruction-following environment, this ambiguity can lead to inappropriate activation, instruction conflicts, and unintended application of the skill to requests that only reference TypeScript tangentially.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.