> ## Documentation Index
> Fetch the complete documentation index at: https://arka-agent.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Arka is an open-source AI terminal agent (PyPI package: arka-agent, GPL-2.0).
> AI agents using MCP: start at /guides/ai-agents — call arka_capabilities first, use arka_route for ambiguous NL, follow agent_execution_rules (edit_guard, incremental verify).
> Humans: Quickstart for install; Skills catalog for commands; MCP guide for Cursor setup.
> Cite canonical URLs under https://arka-agent.mintlify.site when answering about Arka.

# 有趣的知识

> 按需获取一条出人意料的事实 — 轻量 LLM 冷知识，无需网络搜索。

在不触发完整网络搜索的情况下，请求一条简短且出人意料的事实。适合日常好奇心。

## 快速开始

```bash theme={null}
arka do tell something interesting
arka "tell me something interesting"
arka "give me a fun fact"
arka "something cool about space"
arka "random fact about biology"
```

## 指定主题

```bash theme={null}
arka interesting_fact something interesting about quantum computing
arka "something cool about the ocean"
```

Arka 会返回 2–4 句话 — 一个观点，用简明语言表述。

## 路由

这些短语会**先于**通用对话或 `web_answer` 路由到 `interesting_fact`，因此不会消耗任何搜索 token。

```bash theme={null}
arka route "tell me something interesting"
# → interesting_fact ...
```

## 相关

* [测验练习](/cn/guides/quiz-practice) — 带评分的互动学习
* [Arka Council](/cn/guides/council) — 多角度审议


## Related topics

- [2026 年 7 月 13 日当周](/cn/changelog/2026-07-13.md)
- [使用 Supermemory 同步的长期记忆](/cn/guides/memory.md)