AI agents call list_domain_trusts to retrieve information from BloodHound MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves trust relationship metadata from Active Directory, which is a read-only query operation. While it does not modify, delete, or execute arbitrary code, it provides reconnaissance data that could inform attack paths in a multi-domain environment.
From the tool's definition Tool name 'list_domain_trusts' and description 'List domain trust(s)' indicate retrieval/enumeration of existing trust relationships without modification. This is a query operation that retrieves information about Active Directory domain trust configurations.
Documented attack patterns abuse exactly the kind of access list_domain_trusts gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BloodHound MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_domain_trusts:
{
"version": "1",
"default": "deny",
"tools": {
"list_domain_trusts": {}
}
}list_domain_trusts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List domain trust(s). It is categorised as a Read tool in the BloodHound MCP MCP Server, which means it retrieves data without modifying state.
Register the BloodHound MCP server in PolicyLayer and add a rule for list_domain_trusts: 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 BloodHound MCP. Nothing to install.
list_domain_trusts 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 list_domain_trusts 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 list_domain_trusts. 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.
list_domain_trusts is provided by the BloodHound MCP server (stevenyu113228/bloodhound-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 106 BloodHound MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
106 BloodHound MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.