update_deploy_script · Ploi MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_deploy_script does on Ploi MCP Server

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

WHY IT NEEDS A POLICY

Why update_deploy_script needs a policy

This tool modifies site deployment scripts without permanent deletion, making it a Write operation rather than Destructive. However, the high severity is justified because incorrect deployment script replacements could break live sites or cause service disruption.

From the tool's definition Tool name 'update_deploy_script' and description 'Replace a site' indicate modification of deployment configuration. The term 'Replace' suggests overwriting existing site deployment scripts, which is a reversible write operation on critical infrastructure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_deploy_script Rate-limited

update_deploy_script 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_deploy_script": {
      "limits": [
        {
          "counter": "update_deploy_script_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 Ploi MCP Server, so you can run agents against it safely.

FAQ

Questions about update_deploy_script

What does the update_deploy_script tool do? +

Replace a site. It is categorised as a Write tool in the Ploi 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 update_deploy_script? +

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

What risk level is update_deploy_script? +

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

Can I rate-limit update_deploy_script? +

Yes. Add a rate_limit block to the update_deploy_script 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_deploy_script completely? +

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

update_deploy_script is provided by the Ploi MCP Server MCP server (sudanese/ploi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.