AI agents call get-relation-type-by-id to retrieve information from Mcp Dev without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about a relation type in Umbraco CMS using its ID. It performs a read-only lookup with no capability to modify, delete, or execute code. The blast radius of misuse is minimal—an attacker could enumerate relation type metadata but cannot alter system state or access sensitive user data beyond what the relation type schema itself exposes.
From the tool's definition Tool name 'get-relation-type-by-id' and description 'Gets a relation type by Id' indicate a retrieval operation with no side effects. The verb 'get' and lack of any modification language confirm this is a query/fetch operation.
Attacks that exploit this kind of access
Gets a relation type by Id. It is categorised as a Read tool in the Mcp Dev MCP Server, which means it retrieves data without modifying state.
Register the Mcp Dev MCP server in PolicyLayer and add a rule for get-relation-type-by-id: 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 Mcp Dev. Nothing to install.
get-relation-type-by-id 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-relation-type-by-id 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-relation-type-by-id. 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-relation-type-by-id is provided by the Mcp Dev MCP server (@umbraco-cms/mcp-dev). 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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