communications_update_preferences

Update communication preferences for a contact

SERVERHubSpot MCP SOURCEblacksand-software/hubspot-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/blacksand-software-hubspot-mcp/communications-update-preferences.md

WHAT IT DOES

What communications_update_preferences does on HubSpot MCP

AI agents use communications_update_preferences to create or update resources in HubSpot MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your HubSpot MCP environment.

RISK

Why communications_update_preferences is rated Medium

This tool modifies contact preference data in HubSpot's CRM system. Update operations are Write-category because they change data but remain reversible (preferences can be changed again).

From the tool's definition Tool description states 'Update communication preferences for a contact' — the verb 'Update' indicates modification of existing data. The context of HubSpot CRM and communication preferences confirms this affects contact records reversibly.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs communications_update_preferences safely

PolicyLayer is an MCP gateway: it sits between your AI agents and HubSpot MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For communications_update_preferences, this is the rule to start with:

communications_update_preferences Rate-limited

communications_update_preferences stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "communications_update_preferences": {
      "limits": [
        {
          "counter": "communications_update_preferences_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect HubSpot MCP, apply this rule, and every communications_update_preferences call is checked against it from then on.

FAQ

Questions about communications_update_preferences

What does the communications_update_preferences tool do? +

Update communication preferences for a contact. It is categorised as a Write tool in the HubSpot MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on communications_update_preferences? +

Register the HubSpot MCP server in PolicyLayer and add a rule for communications_update_preferences: 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.

What risk level is communications_update_preferences? +

communications_update_preferences is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit communications_update_preferences? +

Yes. Add a rate_limit block to the communications_update_preferences 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.

How do I block communications_update_preferences completely? +

Set action: deny in the PolicyLayer policy for communications_update_preferences. 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.

What MCP server provides communications_update_preferences? +

communications_update_preferences is provided by the HubSpot MCP server (blacksand-software/hubspot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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