HA_MistralAI

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Home Assistant custom integration — Mistral AI as conversation agent and Voxtral as speech-to-text engine. ⚠️ Please note this is not an officially supported integration and is not affiliated with Mistral AI in any way.

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<h1>Mistral AI Conversation</h1>
 Home Assistant custom integration — Mistral AI as conversation agent, Voxtral for speech-to-text, and Mistral TTS for text-to-speech.

⚠️ Please note this is not an officially supported integration and is not affiliated with Mistral AI in any way.

[![hacs_badge](https://img.shields.io/badge/HACS-Custom-orange.svg?style=for-the-badge)](https://github.com/hacs/integration)
 [![HA Version](https://img.shields.io/badge/Home%20Assistant-2025.10%2B-blue?style=for-the-badge&logo=home-assistant)](https://www.home-assistant.io/)
 [![Mistral AI](https://img.shields.io/badge/Mistral%20AI-Powered-orange?style=for-the-badge)](https://mistral.ai/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg?style=for-the-badge)](https://raw.githubusercontent.com/SnarfNL/HA_MistralAI/main/LICENSE)
</div>

---

## Table of Contents

1. [About](#about)
2. [Features](#features)
3. [Requirements](#requirements)
4. [Installation](#installation)
5. [Configuration](#configuration)
   - [Creating an API key](#creating-an-api-key)
   - [Setting up the integration](#setting-up-the-integration)
   - [Selecting as voice assistant](#selecting-as-voice-assistant)
6. [Options](#options)
   - [Available models](#available-models)
   - [System prompt](#system-prompt)
   - [Continue conversation (Experimental)](#continue-conversation-experimental)
   - [Web search (Beta)](#web-search-beta)
7. [Controlling devices](#controlling-devices)
8. [Using as a service action](#using-as-a-service-action)
9. [Speech recognition (STT)](#speech-recognition-stt)
10. [Text-to-speech (TTS)](#text-to-speech-tts)
11. [FAQ](#faq)
12. [Release Notes](#release-notes)
13. [License](#license)

---

## About

This integration makes **Mistral AI** available as a fully-featured conversation agent inside Home Assistant's built-in Assist voice pipeline. It also registers **Voxtral** (Mistral's own speech-to-text model) as a native HA STT provider — creating two separate devices, one for conversation and one for transcription, just like the official Google Gemini integration.

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---

## Features

| Feature | Status | Description |
|---|---|---|
| Conversation agent in HA Assist | ✅ | Selectable as agent in Voice Assistants |
| Smart home control | ✅ | Control lights, switches, covers, locks, etc. |
| Speech recognition (STT) | ✅ | Voxtral Mini via `/v1/audio/transcriptions` |
| Text-to-speech (TTS) | ✅ | Mistral TTS via `/v1/audio/speech` with multiple voices |
| Streaming TTS | ✅ | Low-latency SSE WAV with sentence-level pipelining (≥ v0.4.0) |
| Conversation memory | ✅ | Context kept per session until 5 min idle (HA timeout). |
| Jinja2 system prompt | ✅ | Templates with `{{ now() }}`, `{{ ha_name }}` etc. |
| Multilingual | ✅ | Responds in the user's language |
| Continue conversation | ✅ | Keeps microphone open after questions (Experimental) |
| Web search | ✅ | Model-decided web search via the Agents API, or trigger phrases (Beta) |
| Separate devices | ✅ | Conversation and STT appear as separate HA devices |

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---

## Requirements

| Requirement | Minimum version |
|---|---|
| Home Assistant Core | 2025.10 |
| Python | 3.13 |
| Mistral AI account + API key | — |

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---

## Installation

### Via HACS (recommended)

1. HACS → **Integrations** → ⋮ → **Custom repositories**
2. URL: `https://github.com/SnarfNL/HA_MistralAI` — category: **Integration**
3. Search "Mistral AI Conversation" → **Download**
4. **Fully restart** Home Assistant

### Manual

1. Copy `custom_components/mistral_conversation/` to `/config/custom_components/`
2. Remove old `__pycache__` directories if updating from a previous version:
   ```bash
   rm -rf /config/custom_components/mistral_conversation/__pycache__
   ```
3. **Fully restart** Home Assistant (not just reload)

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---

## Configuration

### Creating an API key

1. Sign up at [mistral.ai](https://mistral.ai/)
2. Go to [console.mistral.ai/api-keys](https://console.mistral.ai/api-keys)
3. Click **Create new key** and copy it immediately

### Setting up the integration

1. **Settings → Devices & Services → + Add Integration**
2. Search for **Mistral AI Conversation**
3. Enter your API key → **Submit**

### Selecting as voice assistant

1. **Settings → Voice Assistants** → click your assistant
2. Set **Conversation agent** to **Mistral AI Conversation**
3. Optionally set **Speech-to-text** to **Mistral AI STT (Voxtral)**
4. Save

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---

## Options

Click the integration → **Configure** to change settings.

| Option | Default | Description |
|---|---|---|
| **AI model** | `ministral-8b-latest` | Which Mistral model to use |
| **System prompt** | See below | Jinja2 template with AI instructions |
| **Temperature** | `0.7` | Creativity: 0.0 = deterministic, 1.0 = creative |
| **Max tokens** | `1024` | Maximum response length |
| **Control HA** | On | Allow the AI to control exposed devices |
| **Continue conversation** | Off | Keep listening after questions (Experimental) |
| **Web search** | Off | Allow the AI to search the web (Beta) |
| **Web search routing** | `Let the model decide` | How web search is triggered — see below |
| **Web search trigger phrases** | *(empty)* | Optional phrases that force a web search — see below |
| **STT language** | Auto-detect | Language for Voxtral transcription |
| **TTS mode** | `Streaming` | `Streaming` (SSE WAV with sentence-level pipelining) or `Batch` (single MP3 request) |
### Available models

| Model | Speed | Cost | Best for |
|---|---|---|---|
| `ministral-8b-latest` ⭐ | ★★★★★ | $ | Home automation commands — fast, accurate, cheap |
| `ministral-3b-latest` | ★★★★★ | $ | Ultra-simple commands, lowest latency |
| `mistral-small-latest` | ★★★★ | $$ | Balanced: quality and speed |
| `mistral-large-latest` | ★★★ | $$$$ | Complex reasoning, long conversations |
| `open-mistral-nemo` | ★★★★ | $ | Open-source alternative |

> **Recommendation:** Start with `ministral-8b-latest`. It has excellent instruction-following, handles structured JSON output reliably (needed for device control), and costs a fraction of larger models.

### System prompt

The system prompt supports Jinja2 templates:

```jinja2
You are a helpful voice assistant for {{ ha_name }}.
Answer in the same language the user speaks.
Today is {{ now().strftime('%A, %B %d, %Y') }} and the time is {{ now().strftime('%H:%M') }}.
Be concise and friendly.
For straightforward home control commands, briefly confirm the action taken without asking follow-up questions.
Your responses are read aloud by text-to-speech, so reply in plain text.
Do not use markdown formatting that cannot be read aloud, such as asterisks for bold, underscores for italics, backticks, bullet lists, emojis, or headers.
```

**Available template variables:**

| Variable | Description |
|---|---|
| `{{ ha_name }}` | Your Home Assistant location name |
| `{{ now() }}` | Current datetime object |
| `{{ now().strftime(…) }}` | Formatted date/time string |

### Continue conversation (Experimental)

When enabled, the assistant automatically keeps the microphone open after any response that contains a question (`?`). This is implemented using the native `continue_conversation` flag in HA's `ConversationResult` — no separate automation is needed.

> **Note:** This feature requires a satellite device that supports `assist_satellite.start_conversation`. Behaviour may vary between satellite types.

### Web search (Beta)

Web search is only available through Mistral's **Agents API**, which is a separate,
slower endpoint than the regular chat completions call and **cannot carry Home
Assistant tools**. A turn answered by the Agents API therefore cannot control
your devices. Requires an agent-capable model (`mistral-small-latest`,
`mistral-medium-latest` or `mistral-large-latest`).

**Web search routing** controls when that endpoint is used:

| Mode | Behaviour |
|---|---|
| **Let the model decide** (default) | Web search is offered to the model as a tool. It searches only when it judges a search is needed, and Home Assistant tools stay available — so one turn can search *and* control devices. |
| **Always search** | Legacy behaviour: every request goes to the Agents API. Slower, and device control does not work on those turns. |

> **Performance note:** enabling web search with **Always search** routes *every*
> utterance — including "turn on the lamp" — through the Agents API. Use
> **Let the model decide**, or set trigger phrases, to keep ordinary commands on
> the fast path.

**Web search trigger phrases** (optional) is a comma-separated list, for example:

```
search for, look up, google
```

When it is non-empty it **takes precedence over the routing mode**: only utterances
that *start with* one of the phrases search the web (the phrase itself is stripped
from the query), and every other utterance never searches. If several phrases
match, the longest one wins. Matching is case-insensitive. Leave the field empty
to let the routing mode decide.

Trigger phrases are language-specific, so nothing is shipped by default. Dutch
users might use `zoek op, zoek online, google`; German users `suche, google`.

> Note: with trigger phrases set, a matching turn goes straight to the Agents API
> and so cannot control devices — that is the same trade-off as **Always search**,
> just limited to utterances you opt into.

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---

## Controlling devices

Enable **Allow AI to control Home Assistant devices** in the options, then expose the entities you want via **Settings → Voice Assistants → Exposed devices**.

### Example commands

| What you say | What happens |
|---|---|
| "Turn off the kitchen light" | `light.turn_off` |
| "Open the blinds" | `cover.open_cover` |
| "Lock the front door" | `lock.lock` |
| "Play something in the living room" | `media_player.media_play` |
| "Activate the movie scene" | `scene.turn_on` |

### Supported domains

`light` · `switch` · `cover` · `media_player` · `fan` · `climate` · `lock` · `alarm_control_panel` · `scene` · `script` · `automation` · `homeassistant`

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---

## Using as a service action

Use `conversation.process` in automations or scripts:

```yaml
action: conversation.process
data:
  agent_id: conversation.mistral_ai_conversation
  text: "What is the temperature in the living room?"
response_variable: result
```

The response text is in `result.response.speech.plain.speech`.

### Example: Smart doorbell notification

```yaml
alias: Smart doorbell notification
sequence:
  - action: conversation.process
    data:
      agent_id: conversation.mistral_ai_conversation
      text: >
        The doorbell rang at {{ now().strftime('%H:%M') }}.
        Write a short, friendly notification message.
    response_variable: ai_result
  - action: notify.mobile_app
    data:
      title: "Doorbell 🔔"
      message: "{{ ai_result.response.speech.plain.speech }}"
```

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---

## Speech recognition (STT)

A `stt.mistral_ai_stt_voxtral` entity is registered automatically.

### Voxtral specifications

| Property | Value |
|---|---|
| Model | `voxtral-mini-latest` |
| Supported format | WAV (16-bit, 16 kHz, mono PCM) |
| Languages | 60+ with auto-detect |
| Pricing | ~$0.003 per minute |

### Setting STT language

In the options, select a language from the dropdown for best accuracy, or leave it on **Auto-detect**.

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---

## Text-to-speech (TTS)

When the integration is installed, a **Mistral AI TTS** entity is registered automatically as a separate HA TTS provider. It uses Mistral's `/v1/audio/speech` endpoint and supports two operating modes (see [TTS modes](#tts-modes) below): low-latency streaming WAV (default, since v0.4.0) and single-shot MP3.

### TTS modes

Selectable via **Settings → Devices & Services → Mistral AI Conversation → Configure → Text-to-speech mode**:

| Mode | Behaviour | First audio | Best for |
|---|---|---|---|
| **Streaming** *(default)* | Server-Sent Events with chunked WAV. Sentences are extracted from the LLM token stream and dispatched to Mistral in parallel (up to 5 concurrent), with audio reassembled in strict order. | ~0.5–1 s | HA Voice satellites (Voice PE, ESPHome) |
| **Batch** | Single non-streaming POST returns the full MP3 in a JSON body before any audio is yielded. | After full synthesis (~3–5 s for long replies) | Direct `tts.speak` service calls; environments where chunked HTTP is problematic |

> **Note:** Direct `tts.speak` service calls always use the batch path regardless of this setting (the service expects a single audio file, not a stream).

### Voxtral TTS specifications

| Property | Value |
|---|---|
| Model | `voxtral-mini-tts-2603` |
| Stream container | WAV (24 kHz, 16-bit, mono PCM) |
| Batch container | MP3 (base64-wrapped JSON response) |
| Voices | EN-US (Paul), GB (Jane, Oliver), FR (Marie) — emotion variants |

### Selecting a voice

In **Settings → Devices & Services → Mistral AI Conversation → Configure**, choose from the available voices.
The available voices are retrieved dynamically. Currently there are only voices for EN, GB and FR available.

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---

## FAQ

**Q: The integration does not appear in the Voice Assistants dropdown.**
A: Make sure you performed a full restart (not just reload) and cleared any `__pycache__` directories.

**Q: I get a 400 Bad Request error.**
A: Check the HA logs for the full error body. A common cause is an invalid model name or a temperature value outside 0.0–1.0.

**Q: Can I use TTS with this integration?**
A: Now that Mistral has a TTS model, yes. Please refer to Text-to-speech (TTS) section for details.

**Q: How much does it cost?**
A: With `ministral-8b-latest` and typical home use, expect less than €1–2 per month. Voxtral STT adds ~€0.003/minute. See [mistral.ai/pricing](https://mistral.ai/pricing/).

**Q: Does continue conversation work on all satellites?**
A: It requires a satellite that supports the `assist_satellite` integration and `start_conversation`. It has been tested with ESPHome voice satellites. Behaviour on other devices may vary.

**Q: Are my conversations stored?**
A: Mistral AI processes requests via their servers. See their [privacy policy](https://mistral.ai/privacy-policy) for details.

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---

## Release Notes

### Unreleased
- **Fixed:** With web search enabled, *every* utterance was routed through the Agents API — including plain device commands. That path never passed Home Assistant tools, so device control silently failed on it (the model replies "I can't perform physical actions"). Web search is now opt-in per turn. Fixes #29.
- **Added:** `web_search_mode` option. Default `model` advertises web search to the model as a tool and services the call against the Agents API, so a turn keeps its HA tools and can search *and* control devices. `always` preserves the previous behaviour.
- **Added:** `web_search_trigger` option — optional comma-separated phrases (empty by default). When set it takes precedence over `web_search_mode`: only utterances starting with a phrase search (phrase stripped, longest match wins, case-insensitive); all others never search.
- **Fixed:** Assistant turns carrying neither text nor tool calls are no longer sent to Mistral — they were rejected with HTTP 400 `Assistant message must have either content or tool_calls, but not none.` (code 3240).
- **Added:** 29 unit tests for trigger resolution, tool-call interception, and the content-less-assistant-turn guard.

---

### 2026.05 — 2026-05-04
- **Changed:** Version numbering from digits to year.month.version format.
- **Added:** New AI task entity that lets Mistral generate structured data, handle image attachments, and respect output schemas defined in HA automations.
- **Added:** Streaming TTS via Mistral's SSE WAV endpoint (`response_format=wav`, `stream=true`). End-of-speech-to-first-audio drops from ~5 s to ~1 s for long responses — audio chunks arrive while synthesis is in progress instead of waiting for the full MP3.
- **Added:** Sentence-level pipelining — incoming LLM tokens are segmented into complete sentences and dispatched to Mistral in parallel (up to 5 concurrent requests bounded by an `asyncio.Semaphore`). Audio is reassembled in strict order with the WAV header from sentence 0 followed by raw PCM samples from sentences 1..N.
- **Added:** `tts_mode` integration option — choose between `stream` (default) and `batch`. Direct `tts.speak` service calls always use the batch path regardless of this setting.
- **Added:** `tests/` directory with 64 unit tests covering `_streaming` helpers (sentence segmenter, SSE parser), const sanity (defaults reference valid values, voice naming convention, WAV header pin), `_pcm_to_wav` (round-trips RIFF/WAVE, fmt subchunk, data subchunk), and `_async_stream_delta` (chat-completions SSE: text deltas, `[DONE]` termination, tool-call accumulation, frame-split tolerance, malformed JSON resilience). Run with `python -m unittest discover -t . -s tests`.
- **Added:** MIT `LICENSE` file at the repo root.
- **Fixed:** `async_unload_entry` now unloads platforms *before* clearing runtime data — previously the order was reversed, which could race with in-flight streaming TTS that resolves `self._runtime` lazily on each chunk.
- **Changed:** Minimum Home Assistant version bumped to **2025.10.0** — required for `async_stream_tts_audio` (HA streaming TTS API, shipped 2025.7).

---

### v0.3.6 — 2026-04-10
- **Changed** :Setting default voices and language has been clarified

### v0.3.5 — 2026-04-10
- **Fixed:** : Update available TTS voices and set new default by @kalon33 in #12
- **Changed:** :Translate in French by @kalon33 in #13

### v0.3.1.2 — 2026-04-09
- **Fixed:** TTS voice list corrected — previous lists contained non-existent voice IDs. Replaced with the complete official list of 20 voices from Mistral TTS documentation, covering English (casual, cheerful, neutral), French, Spanish, German, Italian, Portuguese, Dutch, Arabic, and Hindi. Default changed to `neutral_female`.

---

### v0.3.1.1 — 2026-04-09
- **Fixed:** Mistral TTS returned HTTP 400 `Invalid model` — corrected model name from `mistral-tts-latest` to `voxtral-mini-tts-2603`.
- **Fixed:** TTS API returns base64-encoded audio in a JSON `audio_data` field, not raw bytes — the response is now decoded correctly via `base64.b64decode()`.
- **Fixed:** Voice parameter renamed from `voice` to `voice_id` to match the Mistral API spec.
- **Updated:** Voice list replaced with actual Mistral TTS voices in `language_name_style` format (e.g. `gb_oliver_excited`). New default: `s3_rachel`. Added voices for EN-GB, EN-US, FR, DE, ES, NL, IT, PT.

---

### v0.3.1 — 2026-04-09
- **Fixed (HA 2026.4):** `TypeError: can only concatenate str (not "list") to str` — HA 2026.4 changed `chat_log.async_add_delta_content_stream` to expect the generator to yield plain types directly: `str` for text deltas, `llm.ToolInput` for completed tool calls. Our generator was still yielding wrapper dicts (`{"content": ..., "tool_calls": [...]}`), causing HA to attempt concatenating a list onto a string. Fixed `_async_stream_delta` to yield `str` and `llm.ToolInput` objects directly. Tool calls are still buffered until all arguments are streamed before being yielded.
- **Added:** Text-to-speech (TTS) platform using Mistral TTS (`mistral-tts-latest`) via `/v1/audio/speech`. Returns MP3 audio. Registers as a third separate HA device alongside Conversation and STT.
- **Added:** Six selectable TTS voices: nova (default), alloy, echo, fable, onyx, shimmer — all multilingual.
- **Added:** TTS voice selector in the integration options (Settings → Configure).

---

### v0.2.2.3 — 2026-03-05
- **Fixed:** `422 Unprocessable Entity` from Mistral API — HA tool parameters were being sent in HA's own intermediate list format `[{"type": "string", "name": "area", ...}]` instead of the OpenAI-compatible JSON Schema format Mistral requires (`{"type": "object", "properties": {...}, "required": [...]}`). Added `_ha_params_to_json_schema()` which performs the full conversion, including: `string/integer/float/boolean` primitives, `select` → `enum`, `multi_select` → array of enum, `list` → string array, `dict` → object. The `required` list is only populated for parameters that have `required: true` and no `optional: true`.

---

### v0.2.2.2 — 2026-03-05
- **Fixed:** `TypeError: Type is not JSON serializable: function` — voluptuous validators (`str`, `int`, `bool`, etc.) are Python callables and were ending up as values inside tool parameter schemas. Two-part fix:
  1. `_format_tool` now uses `voluptuous_serialize.convert()` with HA's `cv.custom_serializer` — the same approach used by HA's own OpenAI and Gemini integrations — to produce a proper JSON Schema dict from `tool.parameters`.
  2. `_sanitize` extended to handle non-serializable values (functions, types, voluptuous validators): anything that is not a JSON scalar, dict, or list is now converted to `repr(obj)` instead of being passed through, so a single unexpected value can never crash serialization.

---

### v0.2.2.1 — 2026-03-05
Community contributions merged with priority fix applied.

- **Fixed (priority):** `TypeError: Dict key must be a type serializable with OPT_NON_STR_KEYS` — root cause identified as voluptuous schema objects (`vol.Required`, `vol.Optional`) being used as dict keys in tool parameter schemas from HA's LLM API. A recursive `_sanitize()` helper now converts all dict keys to plain strings before any payload is passed to aiohttp. Applied to messages, tools, and all nested structures.
- **Fixed:** `_convert_chat_log_to_messages` now explicitly casts all `id`, `tool_name`, `content` values to `str`, and `tool_result`/`tool_args` dicts are also sanitized before `json.dumps`.
- **Added (community):** `MistralRuntimeData` dataclass in `__init__.py` — shared `aiohttp.ClientSession` and auth headers stored in `hass.data`, avoiding repeated header construction per request.
- **Added (community):** Re-authentication flow (`async_step_reauth`) — when the API key becomes invalid, HA now shows a re-auth notification instead of leaving the integration broken.
- **Added (community):** Native HA LLM API integration via `CONF_LLM_HASS_API` — replaces the custom `CONF_CONTROL_HA` approach. Device control now uses HA's standard `Assist` API, identical to how Google Gemini and OpenAI integrations work.
- **Added (community):** Streaming responses via `chat_log.async_add_delta_content_stream` — words appear progressively in the HA UI.
- **Added (community):** Tool-call loop (max 10 iterations) for multi-step HA device control commands.
- **Added (community):** Web search option (Beta) — uses Mistral's Agents/Conversations API. Requires `mistral-medium-latest` or `mistral-large-latest`.
- **Added (community):** STT now uses the shared runtime session from `hass.data` instead of creating a new client per request.
- **Kept:** `continue_conversation` (Experimental) — re-integrated into the new streaming architecture. Reads the final speech text from `ConversationResult` and sets `continue_conversation=True` when a `?` is detected.

---

### v0.2.2 — 2026-03-05
- **Fixed:** `TypeError: Dict key must be a type serializable with OPT_NON_STR_KEYS` — caused by a community contribution that passed HA `ChatLog` objects into the aiohttp JSON payload. The `_async_handle_message` method now intentionally ignores the `chat_log` argument and manages its own rolling history using `_make_message()`, which explicitly casts all keys and values to plain Python strings before serialization.
- **Fixed:** `service_data` keys returned by the model are also explicitly cast to `str` as an additional safeguard against non-string keys in nested payload structures.

---

### v0.2.1 — 2026-02-23
- **Fixed:** Service confirmation responses are now fully dynamic and language-aware. The AI generates the confirmation text itself (in whatever language the user is speaking) via a `"confirmation"` field in the JSON action payload. The hardcoded English `_SERVICE_PAST_TENSE` dictionary has been removed entirely.
- **Fixed:** `volume_set` service call was incorrectly blocked — added `volume_set`, `volume_mute`, `select_source`, `select_sound_mode`, `media_next_track`, `media_previous_track` to the media_player allowlist.
- **Fixed:** Service calls with extra parameters (e.g. `volume_level`, `temperature`) now work correctly via a `"service_data"` field in the JSON payload.
- **Improved:** Extended allowlist with `cover.set_cover_position`, `fan.set_percentage`, `fan.set_preset_mode`, `climate.set_temperature`, `climate.set_hvac_mode`, `input_boolean`, `input_number`, and `number` domains.

---

### v0.2.0 — 2026-02-23
**Breaking:** Removed Agent mode — integration now uses Model mode only.

- **Removed:** Agent mode and all Mistral Console agent configuration. All configuration is now done directly in Home Assistant.
- **Added:** `continue_conversation` option — when enabled, the assistant automatically keeps the microphone open after responses containing a question. Implemented natively via HA's `ConversationResult.continue_conversation` flag (no external automation required). Labelled *Experimental*.
- **Updated:** Model list — removed deprecated `ministral-7b-latest` and `open-codestral-mamba`. Added `ministral-8b-latest` (new default) and `ministral-3b-latest`. `ministral-8b-latest` is the recommended model for home automation: fast, cost-effective, and excellent at structured instruction-following.
- **Fixed:** All hardcoded Dutch strings in Python code replaced with English fallbacks. UI labels remain available in both English and Dutch via translation files.
- **Fixed:** Service confirmation messages no longer start with "Done!" / "Klaar!". Format is now e.g. *"Kitchen light has been turned off."*
- **Fixed:** Wrong GitHub URL in documentation corrected from `SnarfNL/mistral_conversation` to `SnarfNL/HA_MistralAI`.
- **Fixed:** Removed "(only in Model mode)" labels from all UI options since Agent mode no longer exists.
- **Optimised:** `_post_chat` error handling consolidated; `HomeAssistantError` and `aiohttp.ClientError` caught in a single handler. Error messages are now in English.
- **Optimised:** History trimming now preserves exactly the last 40 messages (20 turns) using a single slice operation.

---

### v0.1.8 — 2026-02-21
- **Added:** `icon.png` (128 px) and `icon@2x.png` (256 px) — Mistral M-logo on orange rounded-square background.
- **Added:** `images/` folder with 256 px and 512 px versions for submission to the home-assistant/brands repository.
- **Added:** Comprehensive `README.md` modelled after the BlaXun integration.
- **Fixed:** STT and conversation entities now have **separate `DeviceInfo`** with distinct `identifiers`, matching the pattern used by the Google Gemini integration.
- **Fixed:** `MistralSTTEntity` was missing `DeviceInfo` entirely — caused WebSocket handler errors (`Received binary message for non-existing handler`).
- **Fixed:** PCM-to-WAV wrapping now always applied regardless of `metadata.format`, fixing 400 errors on the Voxtral endpoint.
- **Fixed:** Full HTTP response body now logged on any 4xx/5xx from the chat API, making debugging possible.

---

### v0.1.7 — 2026-02-21
- **Fixed:** STT 400 error: HA always delivers raw PCM bytes; the WAV wrapper was incorrectly skipped when `metadata.format == WAV`.
- **Fixed:** Conversation 400 error: error response body was silently discarded; now logged at ERROR level.
- **Fixed:** `HomeAssistantError` raised inside `_post_chat` was not caught by the `aiohttp.ClientError` handler — added combined except clause.
- **Fixed:** `DeviceInfo` added to `MistralSTTEntity` to allow correct HA device registration.

---

### v0.1.6 — 2026-02-21
- **Added:** Speech-to-text (STT) platform using Mistral's **Voxtral Mini** (`voxtral-mini-latest`).
- **Added:** Agent mode — use a pre-configured agent from Mistral Console via `agent_id`.
- **Added:** STT language selector (dropdown with 60+ languages + Auto-detect).
- **Changed:** Conversation and STT entities registered as separate HA devices.

---

### v0.1.5 — 2026-02-21
- **Added:** `icon.png` and `icon@2x.png` in the component directory.
- **Added:** Full `README.md` with installation guide, option descriptions, automation examples and FAQ.

---

### v0.1.4 — 2026-02-21
- **Fixed:** Mistral API rejects `temperature` values above 1.0 — clamped to `0.0–1.0`.
- **Fixed:** Removed `top_p` from API payload (cannot be sent together with `temperature`).
- **Added:** `ConversationEntityFeature.CONTROL` to enable device control.
- **Improved:** JSON extraction from AI response now handles markdown code fences.

---

### v0.1.3 — 2026-02-21
- **Fixed:** `MistralOptionsFlow.__init__` tried to set `self.config_entry` which is a read-only property in HA 2024.x — removed `__init__`.
- **Added:** `_async_handle_message` (HA 2024.6+ API) with `async_process` fallback for older versions.

---

### v0.1.2 — 2026-02-21
- **Fixed:** Conversation agent did not appear in the Voice Assistants dropdown because entities were registered directly instead of via the `conversation` platform.
- **Changed:** Switched to `async_forward_entry_setups` with `PLATFORMS = ["conversation"]`.

---

### v0.1.1 — 2026-02-21
- **Fixed:** 500 error in config flow caused by incorrect OptionsFlow structure.
- **Changed:** Deprecated `conversation.async_set_agent()` replaced by proper platform setup.

---

### v0.1.0 — 2026-02-21
- Initial release.
- Mistral AI selectable as conversation agent in HA Assist.
- Configurable model, system prompt, temperature and max tokens via the UI.
- Home Assistant device control via spoken commands.
- Conversation history per session.

(<a href="#readme-top">back to top</a>)

---

## License

Distributed under the MIT License. See `LICENSE` for more information.

(<a href="#readme-top">back to top</a>)

---

<div align="center">
 Made with ❤️ for the Home Assistant community 
 Inspired by the work of <a href="https://github.com/BlaXun/home_assistant_mistral_ai">BlaXun</a>
</div>

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