"Who Entered the Server Room Last Night?" — Answered in One Prompt

Rhombus + Claude Series

A door at your data center opens at 2:30 in the morning. By breakfast, you want to know who it was, whether they were authorized, and what they did while they were inside.

In most organizations, that question kicks off a fifteen-minute investigation across three systems. Someone logs into the access control platform to pull the badge event. They cross-reference the badge ID against an HR directory to get a name. Then they open the camera system — a completely separate tool, on a completely separate login — and manually scrub the footage around the timestamp to see what happened. If the clocks between the two systems drift by a few seconds, they scrub for longer.

This isn’t a hard problem. It’s just a problem that’s been split across three tools for no reason other than that’s how physical security has always been sold.

Rhombus puts access control and cameras on the same platform, with the same API. An event and the footage that captured it are one query apart.

For the developers:

With Claude Code and the Rhombus plugin, the investigation is a single prompt:

“Show me every server room door event between 10pm and 6am last night, with a clip from the nearest camera for each one.”

Claude pulls the access events, matches them to camera footage, and returns the results with badge holder names and timestamped video.

The payoff: Incident investigation stops being a multi-system forensics exercise and starts being a conversation. The time from question to answer drops from fifteen minutes to fifteen seconds — and scales to every person on the team, not just the ones trained on three dashboards.