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LangBot/en/plugin/dev/apis/tech-details.mdx
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Xiaoyu SuandJunyan Chin 310c566148 refactor: migration to mintlify
* 重构文档结构:移除 docs 目录,调整文件组织结构

* Reorder "插件 SDK API" section in docs.json

* Refactor and clarify various documentation sections

* Refine warnings and info boxes across multiple docs

* Refactor and simplify Japanese documentation content

* Update package.json to include mintlify as a dependency and add pnpm-lock.yaml for dependency management

* Update blog link and add description in docs.json

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Co-authored-by: Junyan Chin <[email protected]>
2026-02-21 23:55:53 +08:00

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---
title: "Plugin Technical Details"
---
## Architecture
<img width="600" src="/images/zh/plugin/dev/plugin_system_arch.png" />
In version 4.0, we introduced a high-security, high-flexibility production-grade plugin system and provided developers with rich APIs and easy-to-use supporting tools.
Plugin Runtime is used to manage plugin lifecycles and coordinate interactions between LangBot and plugins. It has two operating modes: `stdio` and `websocket`. When LangBot is started directly by users (not running in a container), it uses `stdio` mode, which is common for personal users or lightweight environments. When LangBot runs in a container, it uses `websocket` mode, designed specifically for production environments.
Plugin Runtime automatically starts each installed plugin and interacts through stdio. In plugin development scenarios, developers can use the `lbp` command-line tool to start plugins and connect to the running Runtime via WebSocket for debugging.