musepi-extension-dev skillA
musepi-extension-dev is agent-read markdown (skill) from muselinn/musepi: 为 MusePi（TUI/CLI + 桌面 GUI）开发扩展——custom tools、extensions（生命周期/事件）、hooks、plugins、slash commands、skills。触发：用户要求"加个工具/扩展/命令/hook/插件"、"给 musepi 加 X 支持"、修改扩展加载机制、写 MCP 相关集成。桌面 GUI 会话（daemon）与 TUI 共享同一扩展系统，扩展天然两形态可用。.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# MusePi 扩展开发
扩展系统在 `packages/coding-agent/src/extensibility/`。六种形态，各有用途：
| 形态 | 是什么 | 关键文件 |
|---|---|---|
| **Custom tool** | 模型可调用的函数（execute + Zod schema） | `extensibility/custom-tools/loader.ts` |
| **Extension** | 生命周期/事件框架——可注册工具、拦截/修改事件 | `extensibility/extensions/`（loader/runner） |
| **Hook** | 外部 pre/post 命令脚本（如 tool_call 拦截） | `extensibility/hooks` |
| **Plugin** | 可安装的扩展包（`omp.extensions` 清单） | `extensibility/plugins` |
| **Slash command** | 斜杠命令（`/xxx`） | `extensibility/slash-commands.ts` |
| **Skill** | 静态知识包（SKILL.md） | `extensibility/skills.ts` + `discovery/builtin.ts` |
## 快速路径：最小扩展（够用 90% 场景）
写一个 TS 文件（默认导出 factory），放到 `~/.musepi/agent/extensions/<name>/index.ts`（用户级）或 `<cwd>/.musepi/extensions/<name>/index.ts`（项目级）：
```ts
import type { ExtensionAPI } from "@musepi/pi-coding-agent";
export default function (pi: ExtensionAPI) {
const z = pi.zod;
pi.setLabel("My Extension");
pi.on("tool_call", async (event) => {
if (event.toolName === "bash" && /rm -rf/.test(event.input.command ?? "")) {
return { block: true, reason: "Blocked by extension policy" };
}
});
pi.registerTool({
name: "my_tool",
label: "My Tool",
description: "…",
…Read the whole file at its exact version.
How to install
mdr add muselinn/musepi/musepi-extension-dev@git:20260817.c5cdd0emdr add muselinn/musepi/musepi-extension-dev@sha256:e33b8bed74fcb9d0Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_t5i77s6meipwta7b)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4929 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
muselinn/musepi · 17 stars · license MIT · pushed 2026-09-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_t5i77s6meipwta7b GET https://markdownregistry.com/api/v1/resolve?ref=muselinn/musepi/musepi-extension-dev GET https://markdownregistry.com/api/v1/blob/e33b8bed74fcb9d03065dc21b12daa23d38a7937732a74f6c4d7372637656fdf
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.