ha-voice-expert

ha-voice-expert is an agent for Claude Code from nodnarbnitram/claude-code-extensions. It costs 59 tokens per session (4,306 once invoked), scanned A, original, MIT.

A specialist for Home Assistant Assist, the voice-control system in Home Assistant. It covers speech recognition, spoken replies, wake words, voice satellites, and local or cloud processing.

In plain words
What is it for?
Use it to set up voice pipelines, speech-to-text and text-to-speech engines, wake-word detection, custom commands, and satellite devices.
Why use it?
It helps configure the separate parts of a voice assistant and troubleshoot how spoken commands become actions and responses.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cce-homeassistant plugin — 7 agents shipped together

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.

agentmods
npx agentmods add agents/nodnarbnitram/claude-code-extensions/ha-voice-expert
Clone the repo
git clone --depth 1 https://github.com/nodnarbnitram/claude-code-extensions

Made for: Claude Code.

Or install cce-homeassistant, the plugin that ships this one along with the rest of its 7 agents.

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.

agentmods badge for ha-voice-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/nodnarbnitram/claude-code-extensions/ha-voice-expert.svg)](https://agentmods.dev/agents/nodnarbnitram/claude-code-extensions/ha-voice-expert)
Your own site
<a href="https://agentmods.dev/agents/nodnarbnitram/claude-code-extensions/ha-voice-expert"><img src="https://agentmods.dev/badge/agents/nodnarbnitram/claude-code-extensions/ha-voice-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,306 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00059 $0.04306
Opus 5 $0.00030 $0.02153
Sonnet 5 $0.00012 $0.00861
Haiku 4.5 $0.00006 $0.00431

Measured 2d ago against content hash d04e8083cc6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

ha-voice-expert scanned grade A with 0 findings 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 2d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/cce-homeassistant/agents/ha-voice-expert.md · 660 lines

How it starts

The opening of the file, as written. The whole thing — 660 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Home Assistant Voice Control Expert

You are an expert in Home Assistant's Assist voice control system, specializing in local voice processing, pipeline configuration, custom sentence patterns, STT/TTS engines, Wyoming protocol satellites, and wake word detection.

Core Capabilities

1. Assist Pipeline Architecture

The Assist pipeline consists of three core components that process voice input:

STT (Speech-to-Text)Intent RecognitionTTS (Text-to-Speech)

Configure pipelines to use local or cloud processing:

# Example pipeline configuration
assist_pipeline:
  # Pipeline auto-configures with available STT/TTS services

Key Principles:

  • Local processing: Complete privacy, requires hardware resources
  • Cloud processing: Simplest setup via Home Assistant Cloud
  • Hybrid: Mix local wake words with cloud STT/TTS for balance

2. Speech-to-Text (STT) Engines

Faster Whisper (Recommended for Local)

Model Selection Guide:

Model Speed (RPi 4) Speed (Intel NUC) Accuracy Use Case
tiny ~3s <1s Basic Simple commands only
base ~5s <1s Good Home control
small ~8s <1s Better General use (recommended)
medium ~15s ~2s High Complex queries
large Very slow ~5s Highest Not recommended for real-time

Installation via Wyoming Protocol:

# Add Whisper via Settings > Add-ons > Add-on Store
# Search for "Whisper" and install
# Configure model size in add-on configuration

Best Practices:

  • Use small model for RPi 4 / HA Green
  • Use medium or large for Intel NUC/powerful hardware
  • Enable GPU acceleration if available
  • Monitor processing time in logs
Speech-to-Phrase (Faster Alternative)

Performance: <1 second even on Raspberry Pi 4

Trade-offs:

  • Extremely fast for home control commands
  • Close-ended model (only recognizes trained phrases)
  • Best for: device control, basic queries
  • Not suitable for: open-ended conversations

Read the full file on GitHub · 660 lines

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.

  1. 2d ago First seen · 660 lines · 59 tokens per session scan A d04e8083cc6c

Subscribe to this mod's changes

ha-voice-expert is an agent published in the GitHub repository nodnarbnitram/claude-code-extensions (16 stars, last pushed 4mo ago), licensed MIT. It adds 59 tokens to every session and 4,306 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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