Nr FAQs

Question 1

How does Nr ensure safe deployments and prevent Node-RED tab reordering?

Accepted Answer

Nr utilizes a correct `GET → POST /flows` pattern instead of `PUT /flow/:id` to prevent silent tab reordering. It also incorporates optimistic locking using the Node-RED `rev` field to detect and prevent data loss from concurrent modifications, ensuring integrity.

Question 2

What specific tasks can an AI assistant perform using Nr?

Accepted Answer

AI assistants can perform a wide range of tasks including getting flow summaries, searching nodes by various criteria, extracting function code, creating/deleting nodes in batches, managing Node-RED modules, triggering inject nodes, and reading debug output, all programmatically.

Question 3

What is Nr (nr-mcp) and how does it help with Node-RED?

Accepted Answer

Nr is a Model Context Protocol (MCP) server that empowers AI assistants to interact with and manage Node-RED flows. It provides 13 comprehensive tools for tasks like reading flows, searching nodes, editing function code, and deploying changes safely.

Question 4

Is Nr suitable for production Node-RED environments?

Accepted Answer

Yes, Nr is production-tested and designed for managing complex Node-RED installations, such as those used in home automation, IoT, and energy management systems, offering reliable and secure operation.

Question 5

What are the prerequisites for installing and configuring Nr?

Accepted Answer

You need Python 3.11+, `uv` (recommended) or `pip`, and an enabled Node-RED Admin API. Configuration involves setting environment variables like `NR_URL`, `NR_TOKEN`, or `NR_USER`/`NR_PASS` for secure connection to your Node-RED instance.

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