AI agents call get_stairs_types to retrieve information from IFC Bonsai MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves or queries stair type data from IFC models without modifying state. No side effects are apparent from the naming pattern. The empty description lowers confidence slightly, but the 'get_' prefix and context among modification tools strongly suggests read-only classification. Severity is low as data retrieval poses minimal risk of harm if misused by an AI agent.
From the tool's definition Tool name 'get_stairs_types' indicates retrieval of stair type definitions from an IFC model. The 'get_' prefix is characteristic of query/read operations.
Documented attack patterns abuse exactly the kind of access get_stairs_types gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and IFC Bonsai MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_stairs_types:
{
"version": "1",
"default": "deny",
"tools": {
"get_stairs_types": {}
}
}get_stairs_types is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_stairs_types. It is categorised as a Read tool in the IFC Bonsai MCP MCP Server, which means it retrieves data without modifying state.
Register the IFC Bonsai MCP server in PolicyLayer and add a rule for get_stairs_types: 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 IFC Bonsai MCP. Nothing to install.
get_stairs_types is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_stairs_types 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.
Set action: deny in the PolicyLayer policy for get_stairs_types. 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.
get_stairs_types is provided by the IFC Bonsai MCP server (show2instruct/ifc-bonsai-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 52 IFC Bonsai MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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52 IFC Bonsai MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.