Xiaomi MiMo provider profile - sends reasoning_effort to MiMo API

The bundled Xiaomi profile lacks build_api_kwargs_extras, so reasoning_effort
was parsed from config but silently dropped. This user plugin overrides the
profile with the missing method.

Mapping: xhigh->high, high->high, medium->medium, low->low, none->omit

SKILL.md

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+# Xiaomi MiMo Provider Profile
+
+Sends `reasoning_effort` as a top-level API parameter to the Xiaomi MiMo API.
+
+## What it fixes
+
+The bundled Xiaomi provider profile in Hermes does not include a `build_api_kwargs_extras` method, so the `reasoning_effort` parameter from config is parsed but silently dropped. This plugin overrides that profile with the missing method.
+
+## Mapping
+
+- `xhigh` → `high` (MiMo API only accepts low/medium/high)
+- `high` → `high`
+- `medium` → `medium`
+- `low` → `low`
+- `none`/empty → omitted
+
+## Installation
+
+Deployed as a user plugin to `/opt/data/plugins/model-providers/xiaomi/`. User plugins load after bundled ones with last-writer-wins, so this persists across container restarts without modifying the image.
+
+## Files
+
+- `plugins/model-providers/xiaomi/__init__.py` — Provider profile override

plugins/model-providers/xiaomi/__init__.py

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+"""Xiaomi MiMo provider profile — user override.
+
+Extends the bundled Xiaomi profile to send ``reasoning_effort`` as a
+top-level API parameter.  The MiMo API accepts ``low``, ``medium``,
+``high`` (``xhigh`` is clamped to ``high``).
+"""
+
+from __future__ import annotations
+
+from typing import Any
+
+from providers import register_provider
+from providers.base import ProviderProfile
+
+
+class XiaomiProfile(ProviderProfile):
+    """Xiaomi MiMo — top-level reasoning_effort."""
+
+    def build_api_kwargs_extras(
+        self, *, reasoning_config: dict | None = None, model: str | None = None, **context
+    ) -> tuple[dict[str, Any], dict[str, Any]]:
+        extra_body: dict[str, Any] = {}
+        top_level: dict[str, Any] = {}
+
+        if isinstance(reasoning_config, dict):
+            effort = (reasoning_config.get("effort") or "").strip().lower()
+            if effort in ("xhigh",):
+                top_level["reasoning_effort"] = "high"
+            elif effort in ("low", "medium", "high"):
+                top_level["reasoning_effort"] = effort
+
+        return extra_body, top_level
+
+
+xiaomi = XiaomiProfile(
+    name="xiaomi",
+    aliases=("mimo", "xiaomi-mimo"),
+    env_vars=("XIAOMI_API_KEY",),
+    base_url="https://api.xiaomimimo.com/v1",
+    supports_health_check=False,
+)
+
+register_provider(xiaomi)