AI agents call emails_get to retrieve information from HubSpot MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves email details from HubSpot CRM without creating, modifying, deleting, or executing any side effects. It is a straightforward read operation that queries existing data. The low severity reflects minimal risk even if misused by an AI agent, as it only exposes existing email information already stored in the system.
From the tool's definition Tool name 'emails_get' and description 'Get details of a specific email' indicate a retrieval operation with no modification or deletion.
Documented attack patterns abuse exactly the kind of access emails_get gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and HubSpot MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for emails_get:
{
"version": "1",
"default": "deny",
"tools": {
"emails_get": {}
}
}emails_get is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get details of a specific email. It is categorised as a Read tool in the HubSpot MCP MCP Server, which means it retrieves data without modifying state.
Register the HubSpot MCP server in PolicyLayer and add a rule for emails_get: 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 HubSpot MCP. Nothing to install.
emails_get 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 emails_get 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 emails_get. 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.
emails_get is provided by the HubSpot MCP server (shinzo-labs/hubspot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 112 HubSpot MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
112 HubSpot MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.