create_tree · Tiling Trees MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_tree does on Tiling Trees MCP Server

AI agents use create_tree 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 create_tree needs a policy

This tool creates a new hierarchical data structure (a tiling tree) for organizing research ideas. Creation of data structures is a Write operation. Severity is low because: (1) the effect is reversible (deletion is available), (2) it only affects the user's own research organization, (3) there is no access to external systems or sensitive data, and (4) the blast radius of misuse is confined to the user's data.

From the tool's definition Tool name is 'create_tree' and description states 'Create a new tiling tree', indicating data creation. The tree is a reversible organizational structure (can be deleted via 'delete_tree' sibling tool).

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_tree Rate-limited

create_tree 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": {
    "create_tree": {
      "limits": [
        {
          "counter": "create_tree_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 create_tree

What does the create_tree tool do? +

Create a new tiling tree to explore a problem/challenge. The tree starts with a root tile representing the complete solution space, which you. 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 create_tree? +

Register the Tiling Trees MCP Server MCP server in PolicyLayer and add a rule for create_tree: 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 create_tree? +

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

Can I rate-limit create_tree? +

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

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

create_tree 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.