Instructions for building Node-RED visual automation flows that control Home Assistant, a platform for managing smart-home devices.

Use it to create trigger-based automations, call Home Assistant services, run functions, store context, and build timer or error-handling patterns.

It helps produce flows with current node names, required files, error handling, and recovery guidance so the automation can be installed and maintained.

Node-RED — Skill for Claude Code by tonylofgren

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add tonylofgren/aurora-smart-home --skill node-red

Clone the repo

git clone --depth 1 https://github.com/tonylofgren/aurora-smart-home

Made for: Claude Code.

Or install aurora, the plugin that ships this one along with the rest of its 6 skills, 1 command.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/tonylofgren/aurora-smart-home/node-red.svg)](https://agentmods.dev/skills/tonylofgren/aurora-smart-home/node-red)

Your own site

<a href="https://agentmods.dev/skills/tonylofgren/aurora-smart-home/node-red"><img src="https://agentmods.dev/badge/skills/tonylofgren/aurora-smart-home/node-red.svg" alt="Measured on agentmods" height="20"></a>

Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,161 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00076	$0.03161
Opus 5	$0.00038	$0.01580
Sonnet 5	$0.00015	$0.00632
Haiku 4.5	$0.00008	$0.00316

Measured 7d ago against content hash 9f395d902a49, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

Node-RED scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

const response = await axios.get(msg.url);

node-red/SKILL.md · 396 lines

How it starts

The opening of the file, as written. The whole thing — 396 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Node-RED for Home Assistant

Build Node-RED flows using node-red-contrib-home-assistant-websocket nodes (v0.80+).

Requirements: Node-RED 4.x (Node.js 18+), Home Assistant 2024.3.0+.

The Iron Law

USE CURRENT NODE NAMES - NEVER OUTDATED ONES

The node-red-contrib-home-assistant-websocket package has renamed several nodes. Using old names produces broken flows that silently fail.

Delivery Contract (read first, applies to every output)

Every flow ships as files in a project folder on disk. Chat output is not delivery. A flow JSON pasted in chat is not a delivered flow. Create <project-slug>/ (or write into the existing project folder in a multi-agent build), write the flow JSON under node-red-flows/, and write a README.md per Iron Law 3 in ../aurora/souls/river.md. README sections follow ../aurora/references/deliverables/manual-format.md: What this does, Installation, Troubleshooting, Recovery. No chat-only output option.

The Process

User request
    │
    ▼
HA server config node exists in Node-RED?
    │ no ─────────────────────────┐
    │ yes                          ▼
    │                       Set up `server` config first
    │                       (URL, access token, allow self-signed if needed)
    │                              │
    ▼ ◀────────────────────────────┘
Pick trigger node (current names only — see table below)
    │
    │  time-based?    ──▶  inject (time) or trigger-state with cron
    │  state-change?  ──▶  trigger-state OR events:state
    │  event?         ──▶  events:all (filtered by event_type)
    │  external?      ──▶  http in (webhook) / mqtt in
    │
    ▼
Add filter/condition (current-state, switch, template)
    │
    ▼
Pick action node (current names only)
    │
    │  call HA service?     ──▶  call-service (`action`, not `service`)
    │  set entity state?    ──▶  call-service light.turn_on / etc.
    │  send HTTP?           ──▶  http request
    │  notify?              ──▶  call-service notify.*
    │
    ▼
Battery-drain risk? ──yes──▶ Add throttle/delay (rate-limit msgs/sec)
    │ no
    ▼
Add status indicators (debug node OR catch node for error path)
    │
    ▼
Test in editor with debug node, fix wiring
    │
    ▼
Deploy and verify in HA
    │
    ▼
Document the flow (description on key nodes)

Read the full file on GitHub · 396 lines

Files

What ships with it

45 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

7d ago First seen · 396 lines · 76 tokens per session scan A 9f395d902a49

Subscribe to this mod's changes

Node-RED is a skill published in the GitHub repository tonylofgren/aurora-smart-home (104 stars, last pushed yesterday), licensed MIT. It adds 76 tokens to every session and 3,161 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude Code Hardware and IoT claude-skill esphome hacs home-assistant home-automation

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Run bot acceptance tests to validate MCP tools work correctly from a real AI agent's perspective. Use when testing PRs, detecting regressions, or verifying tool changes end-to-end with Claude/Gemini CLIs.

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my-pr-checker

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Node-RED