This tool manages Rhombus door controller rules and door policies. It has the following modes of operation, determined by the "requestType" parameter: - get-door-controller-rules: Get all rules for a specific door controller. Requires doorControllerUuid. - create-door-controller-rule: Create a ne...
Part of the Rhombus Node server.
Free to start. No card required.
AI agents use door-tool to create or modify resources in Rhombus Node. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call door-tool repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Rhombus Node.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"door-tool": {
"limits": [
{
"counter": "door-tool_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Rhombus Node policy for all 31 tools.
These attack patterns abuse exactly the kind of access door-tool gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
This tool manages Rhombus door controller rules and door policies. It has the following modes of operation, determined by the "requestType" parameter: - get-door-controller-rules: Get all rules for a specific door controller. Requires doorControllerUuid. - create-door-controller-rule: Create a new rule for a door controller. Requires doorControllerUuid and ruleConfig (JSON string). - get-door-policies: Get all door alert policies in the organization. - create-door-policy: Create a new door policy. Requires policyName and policyConfig (JSON string). Use the get-entity-tool to find door controller and access controlled door UUIDs. Output filtering (all tools): - includeFields (string[]): Dot-notation paths to keep in the response (e.g. "vehicleEvents.vehicleLicensePlate"). Omit to return all fields. - filterBy (array): Predicates to filter array items. Each entry: {field, op, value} where op is one of = != > >= < <= contains. All conditions are ANDed. Example: [{field:"vehicleLicensePlate", op:"=", value:"ABC123"}] WARNING: some tool responses exceed 400k characters — use these params to request only the data you need.. It is categorised as a Write tool in the Rhombus Node MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Rhombus Node MCP server in PolicyLayer and add a rule for door-tool: 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 Rhombus Node. Nothing to install.
door-tool is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the door-tool 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.
Set action: deny in the PolicyLayer policy for door-tool. 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.
door-tool is provided by the Rhombus Node MCP server (rhombus-node-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 31 Rhombus Node tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.