reprint_with_material · Kiln MCP: Risk & Policy

WHAT IT DOES

What reprint_with_material does on Kiln

AI agents invoke reprint_with_material to trigger actions in Kiln. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why reprint_with_material needs a policy

Based on the name, this tool likely triggers a reprint job on a 3D printer using a specified material, which constitutes an external operation (starting a physical print job). This falls under Execute as it triggers external operations. Severity is high because misuse could waste materials, damage equipment, or cause physical hazards. Confidence is low due to the empty description.

From the tool's definition Tool name 'reprint_with_material' on a 3D printer control server; description is empty.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

reprint_with_material Rate-limited

reprint_with_material stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "reprint_with_material": {
      "limits": [
        {
          "counter": "reprint_with_material_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 reprint_with_material

What does the reprint_with_material tool do? +

reprint_with_material. It is categorised as a Execute tool in the Kiln MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on reprint_with_material? +

Register the Kiln MCP server in PolicyLayer and add a rule for reprint_with_material: 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 reprint_with_material? +

reprint_with_material is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit reprint_with_material? +

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

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

reprint_with_material 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.