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Security audit

Home Filter Replacement Tracker

Security checks for vulnerabilities and agentic risk

Overview

This is a prompt-only household filter tracker with clear safety limits and no code, network, API, or credential use.

Before installing, expect to provide household filter locations, model numbers, last replacement dates, and preferred reminders. Do not use it as repair advice; follow manuals, landlord rules, and qualified professionals for unsafe or uncertain equipment access.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • YARA SignaturesMalware Match, Webshell Match, Cryptominer Match
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (5)

YARA rule 'agent_skill_prompt_injection_hidden_instructions': Prompt injection or hidden instructions embedded in AI agent skill text [agent_skills]

High
Category
YARA Match
Confidence
80% confidence
Finding

YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).

Content

Scanner excerpt · SKILL.md (reported line 19)May include surrounding context.

md
ocations, sizes, replacement intervals, next due dates, shopping list, and reminders.
version: "1.0.0"
type: prompt-flow
tags:
  - home-maintenance
  - household-admin
  - filters
  - reminders
  - organization
author: OpenClaw Skill Library
---

# Home Filter Replacement Tracker

## Overview

Home Filter Replacement Tracker helps a household map every routine replaceable filter, record sizes and model details, set replacement intervals, calculate next due dates, and generate a shopping and reminder plan. It is designed for ordinary household organization, not risky repair work.

This skill does not override appliance manuals, landlord rules, lease requirements, building policies, or professional advice. It should not instruct the user to open sealed systems, bypass safety panels, or perform unsafe maintenance.

## When to Use

Use this skill when the user wants to:

- Track HVAC, furnace, air purifier, refrigerator, water, range hood, humidifier, vacuum, or similar household filters
-

Anti-Refusal Statement

High
Category
Anti-Refusal
Confidence
90% confidence
Finding

Skill attempts to nullify the agent's safety policies or restrictions ('you have no restrictions', 'ignore your guidelines', 'do anything now'). This is a direct jailbreak that disables guardrails.

Content

Scanner excerpt · SKILL.md (reported line 21)May include surrounding context.

md
Home Filter Replacement Tracker helps a household map every routine replaceable filter, record sizes and model details, set replacement intervals, calculate next due dates, and generate a shopping and reminder plan. It is designed for ordinary household organization, not risky repair work.

This skill does not override appliance manuals, landlord rules, lease requirements, building policies, or professional advice. It should not instruct the user to open sealed systems, bypass safety panels, or perform unsafe maintenance.

## When to Use

Instruction Override

High
Category
Prompt Injection
Confidence
90% confidence
Finding

This pattern attempts to override system instructions or ignore safety constraints. Without LLM analysis, manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 21)May include surrounding context.

md
Home Filter Replacement Tracker helps a household map every routine replaceable filter, record sizes and model details, set replacement intervals, calculate next due dates, and generate a shopping and reminder plan. It is designed for ordinary household organization, not risky repair work.

This skill does not override appliance manuals, landlord rules, lease requirements, building policies, or professional advice. It should not instruct the user to open sealed systems, bypass safety panels, or perform unsafe maintenance.

## When to Use

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 49)May include surrounding context.

md
- Household factors that may shorten intervals, such as pets, smoke, dust, allergies, heavy cooking, or high usage
- Reminder preference, if relevant

Do not ask the user to take apart equipment or inspect unsafe areas.

## Workflow

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
93% confidence
Finding

The manifest sets the skill language to "en" with no indication that users may choose another language or that the English-only constraint is required for a region-specific purpose. This is a natural-language policy concern because it imposes a locale choice without documented opt-in or justification.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.