update_tile · Tiling Trees MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_tile does on Tiling Trees MCP Server

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

WHY IT NEEDS A POLICY

Why update_tile needs a policy

The update_tile tool modifies existing tiles (nodes representing questions, hypotheses, methods, results) in the research hierarchy. This is a reversible write operation that changes data but does not delete it.

From the tool's definition Tool name 'update_tile' combined with description 'Update a tile' indicates modification of existing data within the hierarchical tile-based research system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_tile Rate-limited

update_tile 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": {
    "update_tile": {
      "limits": [
        {
          "counter": "update_tile_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 Tiling Trees MCP Server, so you can run agents against it safely.

FAQ

Questions about update_tile

What does the update_tile tool do? +

Update a tile. It is categorised as a Write tool in the Tiling Trees 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 update_tile? +

Register the Tiling Trees MCP Server MCP server in PolicyLayer and add a rule for update_tile: 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 Tiling Trees MCP Server. Nothing to install.

What risk level is update_tile? +

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

Can I rate-limit update_tile? +

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

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

update_tile is provided by the Tiling Trees MCP Server MCP server (k-chrispens/tiling-trees-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.