Get all properties for contacts
AI agents call crm_get_contact_properties to retrieve information from HubSpot 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 contact property metadata/schema from HubSpot's CRM without modifying, creating, or deleting any data. It is a straightforward query operation with no side effects, fitting the Read category. Severity is low because exposure of property definitions poses minimal risk compared to actual contact data exfiltration or destructive operations.
From the tool's definition Tool name 'crm_get_contact_properties' and description 'Get all properties for contacts' indicate a retrieval operation with no data modification, deletion, or external execution.
Attacks that exploit this kind of access
Get all properties for contacts. It is categorised as a Read tool in the HubSpot MCP Server MCP Server, which means it retrieves data without modifying state.
Register the HubSpot MCP Server MCP server in PolicyLayer and add a rule for crm_get_contact_properties: 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 Server. Nothing to install.
crm_get_contact_properties 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 crm_get_contact_properties 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 crm_get_contact_properties. 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.
crm_get_contact_properties is provided by the HubSpot MCP Server MCP server (kozo93/hubspot-mcp). 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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