resource_set_property

Set a single property on a resource file and save it. DESTRUCTIVE (writes a file) — gated by confirmation. The value uses 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-set-property.md

WHAT IT DOES

What resource_set_property does on Breakpoint

AI agents use resource_set_property 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
`path`	string	Yes	Resource res:// path
`value`	object	—	New value (JSON scalar or __type__-tagged Variant)
`confirm`	boolean	—	Auto-approve this destructive action (skip the confirmation prompt)
`property`	string	Yes	Property name

Parameters from the server's own tool schema.

RISK

Why resource_set_property is rated Medium

The tool creates or modifies data reversibly by setting a property on a resource file. Although the description uses the word 'DESTRUCTIVE,' the functionality is property modification with a confirmation gate, which is characteristic of Write rather than Destructive. A Destructive action would irreversibly delete or overwrite entire data structures without recovery.

From the tool's definition Tool description explicitly states 'writes a file' and is described as modifying a resource file property.

Risk signalsAccepts file system path (path)

Attacks that exploit this kind of access

RECOMMENDED RULE

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

resource_set_property Rate-limited

resource_set_property 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_set_property": {
      "limits": [
        {
          "counter": "resource_set_property_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_set_property call is checked against it from then on.

FAQ

Questions about resource_set_property

What does the resource_set_property tool do? +

Set a single property on a resource file and save it. DESTRUCTIVE (writes a file) — gated by confirmation. The value uses 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_set_property accept? +

resource_set_property accepts 4 parameters: path, value, confirm, property. Required: path, property. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on resource_set_property? +

Register the Breakpoint MCP server in PolicyLayer and add a rule for resource_set_property: 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_set_property? +

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

Can I rate-limit resource_set_property? +

Yes. Add a rate_limit block to the resource_set_property 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_set_property completely? +

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

resource_set_property 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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