Security audit

home-care-calendar

Security checks for vulnerabilities and agentic risk

Overview

This skill is a local home-maintenance calendar tool whose file writes and stored household details are disclosed and fit its purpose.

Install only if you are comfortable storing home inventory, install/service dates, notes, and completion history in a local JSON file and exporting those details into calendar files that may be imported into third-party calendar apps. Keep the ICS output path intentional and avoid putting sensitive notes in item descriptions if the calendar is shared.

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

Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code

Findings (14)

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 48)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 51)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 52)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 53)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 56)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 61)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 64)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 67)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 70)May include surrounding context.
md
python3 scripts/home_care.py inventory

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 76)May include surrounding context.
md
python3 scripts/home_care.py inventory

Undeclared Tool Scope

Medium

Category: MCP Least Privilege
Confidence: 93% confidence
Finding: The skill documentation instructs use of local file operations via an ICS export command, which implies file write capability, yet the skill declares no explicit tool scope or permission boundaries. This creates a least-privilege and transparency problem: an agent may be allowed to read/write files without the manifest clearly constraining where or when those operations are permitted.
Content: No source excerpt is available for this finding.

Missing User Warnings

Low

Category: Not specified by scanner
Confidence: 89% confidence
Finding: The markdown describes persistence in a local JSON file and ICS export to external calendar apps, both of which affect user data handling. There is no accompanying warning or disclosure about what information is stored or that exported files may contain household details and maintenance history.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.