Low Risk

get_construction_details

Get construction details — layers, R-value, U-factor, thermal mass for each material.

How to control get_construction_details ↓

What get_construction_details does on Openstudio

AI agents call get_construction_details to retrieve information from Openstudio without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why get_construction_details needs a policy

This tool queries and retrieves construction metadata (layers, R-value, U-factor, thermal mass) from an OpenStudio building energy model. It performs no side effects, creates no new data, executes no simulations, and makes no destructive changes. It is a straightforward data retrieval operation with minimal blast radius if misused by an agent.

From the tool's definition Tool name 'get_construction_details' uses 'get' verb and description states 'Get construction details' without any modification, creation, deletion, or execution semantics. It retrieves thermal and material properties from an existing model.

Documented attack patterns abuse exactly the kind of access get_construction_details gives an agent:

How to control get_construction_details

PolicyLayer is an MCP gateway — it sits between your AI agents and Openstudio, and nothing reaches the server without passing your rules. This is the rule we recommend for get_construction_details:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_construction_details": {}
  }
}

get_construction_details is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Openstudio — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about get_construction_details

What does the get_construction_details tool do? +

Get construction details — layers, R-value, U-factor, thermal mass for each material. It is categorised as a Read tool in the Openstudio MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_construction_details? +

Register the Openstudio MCP server in PolicyLayer and add a rule for get_construction_details: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Openstudio. Nothing to install.

What risk level is get_construction_details? +

get_construction_details is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_construction_details? +

Yes. Add a rate_limit block to the get_construction_details rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block get_construction_details completely? +

Set action: deny in the PolicyLayer policy for get_construction_details. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides get_construction_details? +

get_construction_details is provided by the Openstudio MCP server (natlabrockies/openstudio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Openstudio tool call.

Start from Openstudio, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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146 Openstudio tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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