> For the complete documentation index, see [llms.txt](https://docs.stacks.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stacks.co/learn/zh/sbtc/auxiliary-features.md).

# 支持功能

本节涵盖了增强 sBTC 系统功能和安全性的附加功能。这些辅助功能有助于提升 sBTC 生态系统的整体稳健性和用户友好性。

{% stepper %}
{% step %}
**交易费用赞助**

允许由赞助方承担 sBTC 交易。
{% endstep %}

{% step %}
**签名者钱包轮换**

为 sBTC 签名者启用安全的密钥轮换。
{% endstep %}
{% endstepper %}


---

# Agent Instructions
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## Querying This Documentation
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```
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