equip_item · DM20 Protocol MCP: Risk & Policy

WHAT IT DOES

What equip_item does on DM20 Protocol

AI agents use equip_item to create or update resources in DM20 Protocol — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your DM20 Protocol environment.

WHY IT NEEDS A POLICY

Why equip_item needs a policy

Based on the name alone, 'equip_item' likely toggles or sets an item as equipped on a character sheet, which is a reversible state change (Write). Confidence is reduced significantly due to the empty description. Given sibling tools like 'add_item_to_character' and 'apply_effect', this tool likely modifies character data rather than deletes or executes code.

From the tool's definition Tool name 'equip_item' suggests modifying a character's equipped state; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

equip_item Rate-limited

equip_item 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": {
    "equip_item": {
      "limits": [
        {
          "counter": "equip_item_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 DM20 Protocol, so you can run agents against it safely.

FAQ

Questions about equip_item

What does the equip_item tool do? +

equip_item. It is categorised as a Write tool in the DM20 Protocol MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on equip_item? +

Register the DM20 Protocol MCP server in PolicyLayer and add a rule for equip_item: 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 DM20 Protocol. Nothing to install.

What risk level is equip_item? +

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

Can I rate-limit equip_item? +

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

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

equip_item is provided by the DM20 Protocol MCP server (polloinfilzato/dm20-protocol). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.