list_available_materials

List all available 3D printing materials with properties.

SERVERKiln SOURCEcodeofaxel/Kiln

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/kiln/list-available-materials.md

WHAT IT DOES

What list_available_materials does on Kiln

AI agents call list_available_materials to retrieve information from Kiln without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_available_materials is rated Low

This tool retrieves and displays information about available materials without creating, modifying, deleting, or executing any operations. It is a pure read operation with minimal risk—the worst outcome is stale or incorrect material data presented to the user. No financial, destructive, or code-execution risk is present.

From the tool's definition Tool name 'list_available_materials' and description 'List all available 3D printing materials with properties' indicate a query/retrieval operation with no modifications or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_available_materials safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Kiln, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_available_materials, this is the rule to start with:

list_available_materials Allowed

list_available_materials is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_available_materials": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Kiln, apply this rule, and every list_available_materials call is checked against it from then on.

FAQ

Questions about list_available_materials

What does the list_available_materials tool do? +

List all available 3D printing materials with properties. It is categorised as a Read tool in the Kiln MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_available_materials? +

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

list_available_materials is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_available_materials? +

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

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

list_available_materials 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.

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