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Security audit

Unit Test Coverage Helper

Security checks for vulnerabilities and agentic risk

Overview

This is a documentation-only helper for adding unit tests and improving coverage, with broad activation wording but no hidden execution, persistence, credential access, or exfiltration behavior.

This skill is reasonable to install for help with unit tests and coverage. Be aware that its automatic invocation rules are broad, so it may activate for generic testing or quality requests; explicit invocation is preferable when you want predictable routing.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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 (12)

Vague Triggers

High
Category
Not specified by scanner
Confidence
98% confidence
Finding

The trigger sentence is broad enough to match ordinary requests about help, workflows, or tests without strong scoping, which can cause the skill to activate when the user did not intend it. In an agent system, overbroad activation can route prompts to the wrong behavior, produce irrelevant actions, and increase the chance that other safeguards or more appropriate skills are bypassed.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The trigger sentences are broad, generic help-seeking phrases that could cause the skill to activate outside narrowly intended test-coverage scenarios. In an agent ecosystem, overbroad invocation increases the chance of unintended routing, context capture, or the skill being applied to requests it was not designed to handle, which can degrade safety and predictability.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The trigger phrases are broad enough to activate on very common testing-related requests, which can cause the skill to be invoked outside its intended scope. In an agent ecosystem, overly permissive activation increases the chance of incorrect routing, prompt collisions, or unintended exposure of the skill’s instructions in contexts where a different skill should handle the task.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The skill description and invocation guidance are broad enough to match many ordinary software-testing requests, which can cause this skill to activate outside its narrowly intended context. Over-broad routing increases the chance of misselection, hidden prompt influence, or unreviewed workflow insertion into unrelated user tasks.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

Generic keywords like 'testing', 'regression', and 'quality' are too common across software requests and can spuriously invoke this skill in contexts where it is not appropriate. That broad match surface makes prompt-routing less reliable and can let the skill override or interfere with more suitable specialized skills.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

The description defines applicability in very broad terms, covering multiple generic software activities without clear boundaries. In an agent-routing system, ambiguous scope can cause this skill to be selected for loosely related requests, increasing the chance of irrelevant guidance, prompt collisions, or interference with more specialized skills.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The trigger keywords are broad and include common terms such as 'testing', 'regression', and 'quality', which can cause the skill to activate in contexts far beyond its intended scope. This is not code-execution dangerous by itself, but it can lead to over-invocation, misrouting, and unintended handling of user requests by this skill instead of a more appropriate one.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The default prompt embeds a very broad invocation phrase tied to generic concepts like software, unit tests, testing, and implementation support. Because these terms appear frequently in normal developer conversations, the skill may be invoked in contexts where the user did not explicitly intend to use it, increasing the risk of prompt-routing mistakes or unintended data exposure to the skill.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

Implicit invocation is enabled without any visible constraints, exclusions, or confirmation step. In a broadly applicable domain like test coverage and unit testing, this creates a realistic risk that the agent is auto-selected during unrelated or only tangentially related requests, which can cause unnecessary prompt injection surface, context leakage, or unintended actions.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The trigger block lacks explicit scope boundaries, so the skill may be selected for generic software requests that mention tests or implementation help only incidentally. This ambiguity is risky because it expands the skill's activation surface, making prompt routing less predictable and easier to manipulate with loosely related phrasing.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
71% confidence
Finding

The file states that there are English and Chinese instruction and guide files, but it does not explain how the user's language preference is selected or whether language choice is user-driven. Because language/locale policy findings apply to natural-language content, this can be interpreted as an undocumented locale behavior.

Content

No source excerpt is available for this finding.

Vague Triggers

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

The example trigger uses everyday phrasing that is broad enough to normalize invocation for loosely related requests, reinforcing imprecise routing behavior. While not directly exploitable as code execution, it widens the set of prompts that may activate the skill and reduces invocation fidelity.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.