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Security audit

Construction Quote & Job Costing

Security checks for vulnerabilities and agentic risk

Overview

This is a transparent UK construction estimating skill with no executable code, persistence, credential use, or hidden data handling.

Install only if you want UK-focused construction estimates. Treat outputs as preliminary working estimates, verify current supplier prices and legal or tax requirements, and perform a site visit before relying on a quote commercially.

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 (3)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The description states the skill covers 'UK material prices and labour rates,' which hard-codes a locale-specific behavior. Because the skill is user-invocable and the manifest does not require confirming that the user wants UK assumptions, it may apply a specific regional locale without explicit user choice.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
89% confidence
Finding

The document frames the skill around UK-specific trade rates, VAT, CIS guidance, and GBP pricing, and presents these defaults as the standard output behavior. This can violate language/locale policy expectations when users are not explicitly offered a choice of locale or informed that the skill is UK-only.

Content

No source excerpt is available for this finding.

Vague Triggers

Low
Category
Not specified by scanner
Confidence
87% confidence
Finding

The manifest description and argument hint say to use the skill when someone needs to 'quote a job or estimate costs' from plain English, but they do not define explicit trigger phrases, exclusions, or a narrow invocation context. This creates ambiguity about when the skill should activate versus when a general budgeting or home-improvement conversation should remain with the base assistant.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.