apex_execute · MCP Salesforce Connector MCP: Risk & Policy

WHAT IT DOES

What apex_execute does on MCP Salesforce Connector

AI agents invoke apex_execute to trigger actions in MCP Salesforce Connector. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why apex_execute needs a policy

This tool executes arbitrary Apex code on Salesforce servers. While not inherently destructive (it could be read-only), the execution capability with user-controlled arguments creates high risk—an AI agent could inadvertently execute code that modifies records, deletes data, or triggers business logic with unintended consequences.

From the tool's definition Tool name 'apex_execute' combined with description 'Executes an Apex REST request' indicates execution of arbitrary Apex code, which is Salesforce's proprietary server-side language.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apex_execute Rate-limited

apex_execute stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "apex_execute": {
      "limits": [
        {
          "counter": "apex_execute_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about apex_execute

What does the apex_execute tool do? +

Executes an Apex REST request. It is categorised as a Execute tool in the MCP Salesforce Connector MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on apex_execute? +

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

What risk level is apex_execute? +

apex_execute is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit apex_execute? +

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

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

apex_execute is provided by the MCP Salesforce Connector MCP server (smn2gnt/mcp-salesforce). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.