property_yield
AI agents call property_yield to retrieve information from UK Property Intelligence without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name and server purpose indicate this retrieves or calculates rental yield metrics for properties—a read-only analytical query. Despite the empty description reducing confidence slightly, the server's stated function (wrapping Land Registry, Rightmove, EPC data) and the pattern of sibling tools all being Read operations strongly suggest this queries yield data without side effects.
From the tool's definition Tool name 'property_yield' combined with server context listing 'rental_yields' as wrapped data source; sibling tools (property_report, rental_analysis, property_comps) are all data-retrieval operations with no modification capability.
Attacks that exploit this kind of access
property_yield. It is categorised as a Read tool in the UK Property Intelligence MCP Server, which means it retrieves data without modifying state.
Register the UK Property Intelligence MCP server in PolicyLayer and add a rule for property_yield: 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 UK Property Intelligence. Nothing to install.
property_yield 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 property_yield 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 property_yield. 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.
property_yield is provided by the UK Property Intelligence MCP server (paulieb89/uk-property-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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