company_select · Evaluar MCP Server MCP: Risk & Policy

WHAT IT DOES

What company_select does on Evaluar MCP Server

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

WHY IT NEEDS A POLICY

Why company_select needs a policy

This tool changes the active context/state of the user's session within the Evaluar platform. While it doesn't create or delete company records, it modifies the user's active working context, which qualifies as a Write operation.

From the tool's definition Tool description states 'Select the active company to work with', which modifies application state by setting an active selection that affects subsequent operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

company_select Rate-limited

company_select 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": {
    "company_select": {
      "limits": [
        {
          "counter": "company_select_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 Evaluar MCP Server, so you can run agents against it safely.

FAQ

Questions about company_select

What does the company_select tool do? +

Select the active company to work with. Use company_list first to see available options. It is categorised as a Write tool in the Evaluar 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 company_select? +

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

What risk level is company_select? +

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

Can I rate-limit company_select? +

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

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

company_select is provided by the Evaluar MCP Server MCP server (yarmijosp94/evaluar-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.