place_ceiling · Minecraft Survival MCP Server MCP

WHAT IT DOES

What place_ceiling does on Minecraft Survival MCP Server

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

WHY IT NEEDS A POLICY

Why place_ceiling needs a policy

This tool creates/places blocks in the Minecraft world, which is a reversible write operation. It modifies the game world state by adding a ceiling structure, but this can be undone by breaking the blocks. No code execution, deletion, or financial operations are involved.

From the tool's definition Place a rectangular ceiling plane from a start coordinate along x/z directions at a fixed y level.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

place_ceiling Rate-limited

place_ceiling 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": {
    "place_ceiling": {
      "limits": [
        {
          "counter": "place_ceiling_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 Minecraft Survival MCP Server, so you can run agents against it safely.

FAQ

Questions about place_ceiling

What does the place_ceiling tool do? +

Place a rectangular ceiling plane from a start coordinate along x/z directions at a fixed y level. It is categorised as a Write tool in the Minecraft Survival 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 place_ceiling? +

Register the Minecraft Survival MCP Server MCP server in PolicyLayer and add a rule for place_ceiling: 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 Minecraft Survival MCP Server. Nothing to install.

What risk level is place_ceiling? +

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

Can I rate-limit place_ceiling? +

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

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

place_ceiling is provided by the Minecraft Survival MCP Server MCP server (netherite-stack/minecraft-survival-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.