place_tiles_batch · Ice Puzzle MCP: Risk & Policy

WHAT IT DOES

What place_tiles_batch does on Ice Puzzle

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

WHY IT NEEDS A POLICY

Why place_tiles_batch needs a policy

This tool creates or modifies tiles in an Ice Puzzle level design, which is reversible (tiles can be removed, replaced, or levels cleared via sibling tools like clear_level). It does not delete data irreversibly, execute arbitrary code, incur financial obligations, or cause permanent harm. The auto-solve feature is a secondary computed consequence, not an independent destructive action.

From the tool's definition "Place multiple tiles at once" indicates the tool creates/modifies level data. The inclusion of "Auto-solves" suggests it also triggers solving logic as a side effect, but the primary action is tile placement (creation/modification of level state), not…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

place_tiles_batch Rate-limited

place_tiles_batch 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_tiles_batch": {
      "limits": [
        {
          "counter": "place_tiles_batch_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 Ice Puzzle, so you can run agents against it safely.

FAQ

Questions about place_tiles_batch

What does the place_tiles_batch tool do? +

Place multiple tiles at once. Auto-solves. It is categorised as a Write tool in the Ice Puzzle 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_tiles_batch? +

Register the Ice Puzzle MCP server in PolicyLayer and add a rule for place_tiles_batch: 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 Ice Puzzle. Nothing to install.

What risk level is place_tiles_batch? +

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

Can I rate-limit place_tiles_batch? +

Yes. Add a rate_limit block to the place_tiles_batch 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_tiles_batch completely? +

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

place_tiles_batch is provided by the Ice Puzzle MCP server (wmoten/ice-puzzle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.