add_bind · DDNet MCP Server MCP: Risk & Policy

WHAT IT DOES

What add_bind does on DDNet MCP Server

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

WHY IT NEEDS A POLICY

Why add_bind needs a policy

The tool creates or adds new key bindings to DDNet game configuration. This is a Write operation—it modifies data (key bindings) in a reversible manner. While not destructive, a malicious agent could rebind critical keys to unexpected actions (e.g., rebind movement/jump keys), potentially disrupting gameplay or user intent.

From the tool's definition Tool name 'add_bind' and description '增加bind' (meaning 'add bind') indicate creation of key binding configurations. This modifies game settings reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_bind Rate-limited

add_bind 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": {
    "add_bind": {
      "limits": [
        {
          "counter": "add_bind_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 DDNet MCP Server, so you can run agents against it safely.

FAQ

Questions about add_bind

What does the add_bind tool do? +

增加bind. It is categorised as a Write tool in the DDNet 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 add_bind? +

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

What risk level is add_bind? +

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

Can I rate-limit add_bind? +

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

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

add_bind is provided by the DDNet MCP Server MCP server (silverhi/ddnet-mcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.