Back to skill

Security audit

Typescript Project Standard

Security checks for vulnerabilities and agentic risk

Overview

This is a documentation-only TypeScript standards skill with no executable behavior, persistence, credential access, or hidden data flow.

Install this if you want general TypeScript project-standard guidance. Be aware that its trigger wording is broad, so it may be invoked for many TypeScript-related requests where a narrower framework-specific skill could be more precise.

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 (8)

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · README.md (reported line 10)May include surrounding context.

md
- ID: `fec-typescript-project-standard`
- Category: `project-standard`
- Version: `2.9.0`
- Source: `skills/fec-typescript-project-standard/SKILL.md`

## Description

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

The description says to use the skill when 'creating, configuring, reviewing, or debugging TypeScript project standards' across a very wide range of TypeScript topics, and then appends a broad list of trigger terms such as 'generics' and 'type narrowing'. These phrases overlap with common TypeScript discussion and lack clear boundaries or exclusion conditions, making activation scope ambiguous.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

The skill description is extremely broad and overlaps with many ordinary TypeScript help requests, which can cause over-invocation and let this skill intercept tasks better handled by narrower framework- or repo-specific skills. In an agentic system, over-broad routing increases the chance of inappropriate context loading, policy bypass through misclassification, or unintended authority over adjacent tasks.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The description uses very broad activation criteria such as creating, configuring, reviewing, or debugging TypeScript standards across many contexts, which can cause the skill to be invoked outside its intended boundary. Over-broad routing increases the chance that a general TypeScript standards skill will override or interfere with more specialized skills, leading to incorrect guidance, missed security-relevant context, or unsafe changes in adjacent domains.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The package description defines a very broad activation scope spanning most common TypeScript project, typing, tsconfig, and API-shaping tasks. In an agent-skill ecosystem, this can cause the skill to trigger for many unrelated or more specialized requests, leading to inappropriate routing, over-collection of user context, or displacement of safer/more precise skills.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

The README explicitly states 'Chinese triggers include ...' but does not present language handling as an optional user choice or explain a region-specific need. This introduces a locale-specific policy choice in the skill description without opt-in language.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
81% confidence
Finding

The description explicitly states 'Chinese triggers include ...' and hard-codes a locale-specific trigger set, but does not indicate that language choice is optional or user-selected. This can be a natural-language policy concern because it introduces a language-specific invocation policy without documenting opt-in or a clear region-specific justification.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
72% confidence
Finding

The natural-language text explicitly introduces 'Chinese triggers' but the listed phrases are English-only, which indicates inconsistent language handling and may imply a language/locale policy issue. This can confuse activation behavior and suggests a language constraint that is not clearly offered as user choice or justified.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.