update_firm · Smokeball MCP: Risk & Policy

WHAT IT DOES

What update_firm does on Smokeball

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

WHY IT NEEDS A POLICY

Why update_firm needs a policy

This tool creates or modifies data reversibly by updating firm profile settings. While the blast radius is significant (firm-wide configuration changes could affect operations, user access, or billing settings), it remains in the Write category because updates are not inherently destructive and can typically be reverted.

From the tool's definition Tool name 'update_firm' and description 'Update firm profile fields' indicate modification of firm-level configuration data. The phrase 'Only pass fields you want to change' confirms the tool performs selective updates rather than deletions or reads.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_firm Rate-limited

update_firm 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": {
    "update_firm": {
      "limits": [
        {
          "counter": "update_firm_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 Smokeball, so you can run agents against it safely.

FAQ

Questions about update_firm

What does the update_firm tool do? +

Update firm profile fields. Only pass fields you want to change. It is categorised as a Write tool in the Smokeball MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_firm? +

Register the Smokeball MCP server in PolicyLayer and add a rule for update_firm: 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 Smokeball. Nothing to install.

What risk level is update_firm? +

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

Can I rate-limit update_firm? +

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

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

update_firm is provided by the Smokeball MCP server (rosenadvertising/smokeball-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.