generate_class

THE RISK

Medium Risk

Why generate_class needs a policy

This tool creates new Apex class files and metadata, which are reversible modifications to the org's codebase. While the created code could have side effects when deployed or executed, the generation act itself is Write (creation of new artifacts). The high severity reflects that generating malicious Apex classes could enable subsequent Execute or Destructive actions.

From the tool's definition Tool name 'generate_class' and description 'Generates the Apex *.cls file and associated metadata file' indicates creation of new code files in a Salesforce organization.

Documented attack patterns abuse exactly the kind of access generate_class gives an agent:

POLICY

How to control generate_class

PolicyLayer is an MCP gateway — it sits between your AI agents and Salesforce MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for generate_class:

policy.json

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

generate_class 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.

Create a free account and register Salesforce MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Salesforce MCP Server tools

Destructive clear_default_org Clear the default target org from the Salesforce CLI configuration. After clearing, all to Destructive delete_record Delete a record from a Salesforce org using the REST API. Permanently removes the specifie Destructive package_uninstall Uninstall a second-generation package from the target org. Specify the package ID (starts Destructive logout Log out of a Salesforce org. Use targetOrg to logout of a specific org, or set all to true Execute deploy_start Deploy metadata to Salesforce org with test execution options. Execute execute_anonymous_apex Execute Apex code in a Salesforce Org. This command allows you to run Apex code directly a Execute run_apex_tests Run Apex tests in a Salesforce Org. This command allows you to execute unit tests with var Execute run_code_analyzer Analyze code for quality and security issues. Run list_code_analyzer_rules first to select

All 41 Salesforce MCP Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about generate_class

What does the generate_class tool do? +

Generates the Apex *.cls file and associated metadata file. These files must contained in a parent directory called. It is categorised as a Write tool in the Salesforce MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_class? +

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

What risk level is generate_class? +

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

Can I rate-limit generate_class? +

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

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

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

Enforce policy on every Salesforce MCP Server tool call.

Start from Salesforce MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →