resource_create

Instantiate a Resource subclass and save it as a new file. DESTRUCTIVE (writes a file) — gated by confirmation. Optional initial properties use the tagged-Variant convention.

SERVERBreakpoint SOURCEbreakpoint-mcp

Medium RISK CLASS

Category Write

Parameters 42 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/breakpoint-mcp/resource-create.md

WHAT IT DOES

What resource_create does on Breakpoint

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

Parameter	Type	Required	Description
`confirm`	boolean	—	Auto-approve this destructive action (skip the confirmation prompt)
`to_path`	string	Yes	Destination res:// path, e.g. res://styles/panel.tres
`class_name`	string	Yes	Resource subclass to instantiate, e.g. StyleBoxFlat, Theme, GDScript
`properties`	object	—	Initial property values (JSON scalars or __type__-tagged Variants)

Parameters from the server's own tool schema.

RISK

Why resource_create is rated Medium

Although the description mentions 'DESTRUCTIVE', the action is file creation with confirmation gates, which is a Write operation—it creates new data reversibly. The file could be deleted or modified afterward. The 'gated by confirmation' qualifier significantly reduces the severity from the destructive category.

From the tool's definition Tool description explicitly states 'writes a file' and instantiates a Resource subclass, creating new persistent data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs resource_create safely

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

resource_create Rate-limited

resource_create 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": {
    "resource_create": {
      "limits": [
        {
          "counter": "resource_create_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 Breakpoint, apply this rule, and every resource_create call is checked against it from then on.

FAQ

Questions about resource_create

What does the resource_create tool do? +

Instantiate a Resource subclass and save it as a new file. DESTRUCTIVE (writes a file) — gated by confirmation. Optional initial properties use the tagged-Variant convention. It is categorised as a Write tool in the Breakpoint MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does resource_create accept? +

resource_create accepts 4 parameters: confirm, to_path, class_name, properties. Required: to_path, class_name. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on resource_create? +

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

What risk level is resource_create? +

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

Can I rate-limit resource_create? +

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

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

resource_create is provided by the Breakpoint MCP server (breakpoint-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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