This tool manages Rhombus door schedule exceptions. A door lock/unlock exception is a one-time rule used to change an access controlled door's locked/unlocked state. If a lock/unlock exception is enabled, it will overwrite the existing lock/unlock schedule. A schedule exception allows you to crea...
Risk signalsHigh parameter count (11 properties)
Part of the Rhombus Node server.
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AI agents use door-schedule-exception-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-schedule-exception-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-schedule-exception-tool": {
"limits": [
{
"counter": "door-schedule-exception-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-schedule-exception-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 schedule exceptions. A door lock/unlock exception is a one-time rule used to change an access controlled door's locked/unlocked state. If a lock/unlock exception is enabled, it will overwrite the existing lock/unlock schedule. A schedule exception allows you to create a custom schedule that is only active for the specified dates/times. Once the date/time a schedule exception is set for passes, the original schedule will resume. Door schedule exceptions can be either expired or not expired. If its scheduled date is in the past, then it is expired. Users through the web console can toggle whether to see expired door schedule exceptions or not. Please mirror this behavior when responding to the user. It has the following modes of operation, determined by the "requestType" parameter: - create-exception: Create a door schedule exception. Requires exception (DoorScheduleExceptionType object). If locationUuid is missing but doorUuids are provided, the tool will resolve the location automatically. - delete-exception: Delete a door schedule exception. Requires exceptionUuid. - find-exceptions: Find door schedule exceptions across the organization, optionally filtered by date range. - find-exceptions-for-location: Find door schedule exceptions for a location. Requires locationUuid. Supports optional date range filters. - find-exceptions-for-door: Find door schedule exceptions for a door. Requires doorUuid. Supports optional date range filters. - get-exception: Get a single door schedule exception by UUID. Requires exceptionUuid. - update-exception: Update a door schedule exception. Requires exception (DoorScheduleExceptionType object). If intervals are omitted but defaultState and date range are provided, the tool will generate a full-day interval. Use get-entity-tool to look up location and door UUIDs when needed. --- Mutating doorUuids on an existing exception (add/remove/replace doors): update-exception REPLACES doorUuids with whatever you pass — it is not a delta operation. To safely remove or add doors while preserving the others: 1. Call find-exceptions (or get-exception) to fetch the exception. The response includes the full doorUuids array for that exception — that IS the current door list. 2. Compute the new array yourself: - Remove doors: filter the existing doorUuids array, dropping the ones to remove. - Add doors: append the new UUIDs to the existing array (deduped). - Replace wholesale: just use the new set. 3. Call update-exception with exception.uuid and exception.doorUuids set to your computed array. Other fields (name, dates, intervals, defaultState) are optional — omit them to leave them unchanged. You already have the current door list in the find-exceptions response. Do not ask the user for it, do not claim you need additional lookups, and do not refuse the mutation citing missing context. The doorUuids array you got back IS the context. 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-schedule-exception-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-schedule-exception-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-schedule-exception-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-schedule-exception-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-schedule-exception-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.
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