AI agents call get-document-ancestors 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 hierarchical information about a document's ancestors in Umbraco CMS. The 'get' verb and the passive retrieval nature of the operation confirm this is a Read category tool. The severity is low because querying document structure poses minimal risk even if misused by an AI agent—it cannot modify, delete, or execute operations. Confidence is high due to the clear and explicit retrieval semantics.
From the tool's definition Tool name 'get-document-ancestors' and description 'Gets ancestor items for a document' indicate a retrieval operation with no modification, deletion, or execution of code.
Attacks that exploit this kind of access
Gets ancestor items for a document. 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-document-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 Mcp Dev. Nothing to install.
get-document-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-document-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-document-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-document-ancestors 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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