Security audit

Cost Estimation Resource

Security checks for vulnerabilities and agentic risk

Overview

This skill is a coherent construction cost estimation helper, with only a minor note that Excel export writes to a chosen file path.

This skill appears safe for its intended use. Before using the Excel export example, verify the destination path so you do not accidentally overwrite an existing estimate file.

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
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
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (1)

Missing User Warnings

Low

Confidence: 90% confidence
Finding: This is a markdown file, so SQP-2 applies to omissions in the skill description about behaviors affecting user data or system state. The documented `export_to_excel` functionality writes an output file, but the surrounding skill documentation does not warn users that running this operation creates or may overwrite files at the specified path.