add_mesh_chamfer · Kiln MCP: Risk & Policy

WHAT IT DOES

What add_mesh_chamfer does on Kiln

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

WHY IT NEEDS A POLICY

Why add_mesh_chamfer needs a policy

This tool modifies 3D model geometry (creates a chamfer on mesh edges), which is a reversible Write operation. While the description is empty (lowering confidence slightly), the name and context strongly suggest mesh design modification rather than execution or destruction.

From the tool's definition Tool name 'add_mesh_chamfer' indicates a modification operation on 3D mesh geometry. The 'add_' prefix and sibling tools like 'add_spool', 'add_assembly_part', and 'add_mesh_fillet' all perform reversible modifications to design data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_mesh_chamfer Rate-limited

add_mesh_chamfer 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_mesh_chamfer": {
      "limits": [
        {
          "counter": "add_mesh_chamfer_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 Kiln, so you can run agents against it safely.

FAQ

Questions about add_mesh_chamfer

What does the add_mesh_chamfer tool do? +

add_mesh_chamfer. It is categorised as a Write tool in the Kiln 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_mesh_chamfer? +

Register the Kiln MCP server in PolicyLayer and add a rule for add_mesh_chamfer: 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 Kiln. Nothing to install.

What risk level is add_mesh_chamfer? +

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

Can I rate-limit add_mesh_chamfer? +

Yes. Add a rate_limit block to the add_mesh_chamfer 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_mesh_chamfer completely? +

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

add_mesh_chamfer is provided by the Kiln MCP server (codeofaxel/Kiln). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.