farmbot_add_point · Farmbot Agent MCP: Risk & Policy

WHAT IT DOES

What farmbot_add_point does on Farmbot Agent

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

WHY IT NEEDS A POLICY

Why farmbot_add_point needs a policy

This tool creates new point records in the FarmBot database (weeds or generic markers) which the robot may subsequently act upon. While adding points itself is not destructive, the combination with sibling tools like farmbot_emergency_stop and the fact that weeds added will trigger mowing/removal actions makes this a Write operation with medium severity—an AI agent could add bogus weed points causing the robot to…

From the tool's definition Tool name and description indicate 'Add a... point to the FarmBot' which creates new data records (Weed or GenericPointer markers) in the FarmBot system. This is reversible creation of data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

farmbot_add_point Rate-limited

farmbot_add_point 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": {
    "farmbot_add_point": {
      "limits": [
        {
          "counter": "farmbot_add_point_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 Farmbot Agent, so you can run agents against it safely.

FAQ

Questions about farmbot_add_point

What does the farmbot_add_point tool do? +

Add a Weed or GenericPointer point to the FarmBot. Use Weed for weeds detected by the camera/agent that you want the bot to mow or remove. Use GenericPointer for arbitrary markers (soil samples, obstacles, locations). It is categorised as a Write tool in the Farmbot Agent MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on farmbot_add_point? +

Register the Farmbot Agent MCP server in PolicyLayer and add a rule for farmbot_add_point: 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 Farmbot Agent. Nothing to install.

What risk level is farmbot_add_point? +

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

Can I rate-limit farmbot_add_point? +

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

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

farmbot_add_point is provided by the Farmbot Agent MCP server (kieranklaassen/farmbot-agent-cli-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.