Retrieve ancestors for a given person ID
AI agents call get_ancestors to retrieve information from WikiTree MCP server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves (reads) family relationship data from the WikiTree API. It has no side effects, does not modify data, execute code, delete records, or involve financial transactions. It is a straightforward data retrieval operation analogous to a search or fetch, making it a Read category risk with low severity.
From the tool's definition Tool name 'get_ancestors' and description 'Retrieve ancestors for a given person ID' indicate a query operation that fetches genealogical data without modification.
Attacks that exploit this kind of access
Retrieve ancestors for a given person ID. It is categorised as a Read tool in the WikiTree MCP server MCP Server, which means it retrieves data without modifying state.
Register the WikiTree MCP server MCP server in PolicyLayer and add a rule for get_ancestors: 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 WikiTree MCP server. Nothing to install.
get_ancestors 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_ancestors 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_ancestors. 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_ancestors is provided by the WikiTree MCP server MCP server (pewu/wikitree-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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