sf_update_lead · Salesforce Marketing MCP: Risk & Policy

WHAT IT DOES

What sf_update_lead does on Salesforce Marketing

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

PARAMETERS

Parameter	Type	Required	Description
`id`	string	Yes	Salesforce Lead ID
`fields`	object	Yes	Fields to update

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why sf_update_lead needs a policy

This tool modifies existing Lead records but does not delete or destroy data (thus not Destructive), does not execute arbitrary code (thus not Execute), and does not involve financial transactions (thus not Financial).

From the tool's definition Tool description states 'Update one or more fields on an existing Salesforce Lead record' — this is a modification operation that creates or changes data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sf_update_lead Rate-limited

sf_update_lead 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": {
    "sf_update_lead": {
      "limits": [
        {
          "counter": "sf_update_lead_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Salesforce Marketing, so you can run agents against it safely.

FAQ

Questions about sf_update_lead

What does the sf_update_lead tool do? +

Update one or more fields on an existing Salesforce Lead record. Pass the 18-character Lead ID and a fields object with any standard or custom field API names (e.g. Status, LeadSource, Title, Phone). Returns the updated record on success. It is categorised as a Write tool in the Salesforce Marketing MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does sf_update_lead accept? +

sf_update_lead accepts 2 parameters: id, fields. Required: id, fields. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on sf_update_lead? +

Register the Salesforce Marketing MCP server in PolicyLayer and add a rule for sf_update_lead: 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 Salesforce Marketing. Nothing to install.

What risk level is sf_update_lead? +

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

Can I rate-limit sf_update_lead? +

Yes. Add a rate_limit block to the sf_update_lead 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 sf_update_lead completely? +

Set action: deny in the PolicyLayer policy for sf_update_lead. 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 sf_update_lead? +

sf_update_lead is provided by the Salesforce Marketing MCP server (salesforce-marketing-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.