AI agents call get_postcode_profile to retrieve information from Homedata without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple data query operation that returns read-only information about a postcode. It has no side effects, cannot modify or delete data, does not execute code or trigger external operations, and does not involve financial transactions. The risk is low as misuse would only result in unauthorized access to publicly-queryable property data rather than damage or unintended consequences.
From the tool's definition Tool name 'get_postcode_profile' and description 'Return a one-shot rollup for a postcode' indicate a retrieval operation.
Attacks that exploit this kind of access
Return a one-shot rollup for a postcode. It is categorised as a Read tool in the Homedata MCP Server, which means it retrieves data without modifying state.
Register the Homedata MCP server in PolicyLayer and add a rule for get_postcode_profile: 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 Homedata. Nothing to install.
get_postcode_profile 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_postcode_profile 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_postcode_profile. 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_postcode_profile is provided by the Homedata MCP server (wehomemove/homedata-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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