copy_custom_node

Copy a public custom node to your library. The copy will be private by default.

SERVERFlowDot MCP Server SOURCEflowdot-llc/mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/flowdot-llc-mcp-server/copy-custom-node.md

WHAT IT DOES

What copy_custom_node does on FlowDot MCP Server

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

RISK

Why copy_custom_node is rated Medium

This tool creates or duplicates data (a custom node) in the user's library, which is a write operation. It is reversible (the copied node can be deleted) and has no destructive capability. The action is scoped to the user's own workspace and involves copying publicly available resources, minimizing blast radius. Severity is low because copying/duplicating data is a low-risk modification operation.

From the tool's definition Tool description states 'Copy a public custom node to your library' - this creates a new private copy of existing data in the user's workspace.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs copy_custom_node safely

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

copy_custom_node Rate-limited

copy_custom_node 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": {
    "copy_custom_node": {
      "limits": [
        {
          "counter": "copy_custom_node_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about copy_custom_node

What does the copy_custom_node tool do? +

Copy a public custom node to your library. The copy will be private by default. It is categorised as a Write tool in the FlowDot 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 copy_custom_node? +

Register the FlowDot MCP Server MCP server in PolicyLayer and add a rule for copy_custom_node: 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 FlowDot MCP Server. Nothing to install.

What risk level is copy_custom_node? +

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

Can I rate-limit copy_custom_node? +

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

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

copy_custom_node is provided by the FlowDot MCP Server MCP server (flowdot-llc/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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