remove_spool

Remove a filament spool from inventory.

SERVERKiln SOURCEcodeofaxel/Kiln

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/kiln/remove-spool.md

WHAT IT DOES

What remove_spool does on Kiln

AI agents call remove_spool to permanently remove resources in Kiln, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why remove_spool is rated Critical

Removing a spool from inventory is a destructive operation that deletes or purges a record from the filament inventory. This is likely irreversible (the spool entry is gone), making it Destructive. The blast radius is medium since it affects inventory tracking data but does not directly damage physical hardware or financial systems.

From the tool's definition 'Remove a filament spool from inventory' — permanently removes an inventory record

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs remove_spool 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 remove_spool, this is the rule to start with:

remove_spool Hidden

remove_spool is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "remove_spool"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about remove_spool

What does the remove_spool tool do? +

Remove a filament spool from inventory. It is categorised as a Destructive tool in the Kiln MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on remove_spool? +

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

remove_spool is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit remove_spool? +

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

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

remove_spool 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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