How do I install the X Mirror skill?

Run npx skillmds@latest add dvcrn/x-mirror in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is X Mirror safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with X Mirror?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is X Mirror free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published X Mirror?

dvcrn (@dvcrn) published this skill. Their other Agent Skills are listed on their SkillMD profile.

X Mirror by dvcrn — Agent Skill

Name: X Mirror
Rating: 4.2 (5 reviews)
Author: dvcrn

X Mirror

x-mirror is a comprehensive mirror source management tool for various package managers. Use this skill whenever users need to configure, switch, or query package manager download mirrors. This skill handles: setting up and switching mirrors for package managers (pip, npm, brew, apt, go, cargo, gem, etc.), viewing available mirror options, checking current mirror configuration, restoring default official sources, and optimizing download speeds in China regions. Triggered by queries like "set npm mirror", "change pip source", "npm mirror speed", "pip Tsinghua mirror", "brew Chinese mirror", "x mirror apt", "how to speed up npm download", "configure pip mirror", "switch npm registry", or any request related to package manager mirrors, registry settings, or download acceleration. This skill is essential for developers in China or anyone needing to optimize package download speeds.

dvcrn Updated Sep 8, 2026 32 repo stars

File contents

x mirror - Mirror Source Manager

Prerequisites

Load x-cmd before use:
```
. ~/.x-cmd.root/X
```
x-cmd not installed? → data/install.md

Core Functions

List mirror sources: x mirror <pkgmgr> ls
Set mirror source: x mirror <pkgmgr> set <mirror-name>
View current mirror: x mirror <pkgmgr> current
Restore default source: x mirror <pkgmgr> unset

Supported Package Managers

System Package Managers

Command	Description
apt	Debian/Ubuntu
brew	Homebrew
pacman	Arch Linux
dnf	Fedora/RHEL
yum	CentOS/RHEL
apk	Alpine Linux

Language Package Managers

Command	Description
pip	Python
npm	Node.js
pnpm	Node.js
yarn	Node.js
go	Go modules
cargo	Rust
gem	Ruby

Container

Command	Description
docker	Docker registry

Usage Examples

List available mirrors

x mirror npm ls
x mirror pip ls
x mirror brew ls

Set mirror source

x mirror npm set npmmirror    # Set npm to use Alibaba Cloud mirror
x mirror pip set tuna         # Set pip to use Tsinghua mirror
x mirror brew set tuna        # Set brew to use Tsinghua mirror

View current mirror

x mirror npm current
x mirror pip current

Restore default source

x mirror npm unset
x mirror pip unset

Common Scenarios

Check available npm mirrors: x mirror npm ls
Set pip to Tsinghua mirror: x mirror pip set tuna
Check current brew mirror: x mirror brew current
Restore npm to official: x mirror npm unset

Get Help

Run x mirror --help or x mirror <subcmd> --help for full documentation.

---name: x-mirrordescription: x-mirror is a comprehensive mirror source management tool for various package managers. Use this skill whenever users need to configure, switch, or query package manager download mirrors. This skill handles: setting up and switching mirrors for package managers (pip, npm, brew, apt, go, cargo, gem, etc.), viewing available mirror options, checking current mirror configuration, restoring default official sources, and optimizing download speeds in China regions. Triggered by queries like "set npm mirror", "change pip source", "npm mirror speed", "pip Tsinghua mirror", "brew Chinese mirror", "x mirror apt", "how to speed up npm download", "configure pip mirror", "switch npm registry", or any request related to package manager mirrors, registry settings, or download acceleration. This skill is essential for developers in China or anyone needing to optimize package download speeds.---# x mirror - Mirror Source Manager## Prerequisites1. Load x-cmd before use: ```bash . ~/.x-cmd.root/X ```2. x-cmd not installed? → [data/install.md](data/install.md)## Core Functions- **List mirror sources**: `x mirror <pkgmgr> ls`- **Set mirror source**: `x mirror <pkgmgr> set <mirror-name>`- **View current mirror**: `x mirror <pkgmgr> current`- **Restore default source**: `x mirror <pkgmgr> unset`## Supported Package Managers### System Package Managers| Command | Description ||---------|-------------|| apt | Debian/Ubuntu || brew | Homebrew || pacman | Arch Linux || dnf | Fedora/RHEL || yum | CentOS/RHEL || apk | Alpine Linux |### Language Package Managers| Command | Description ||---------|-------------|| pip | Python || npm | Node.js || pnpm | Node.js || yarn | Node.js || go | Go modules || cargo | Rust || gem | Ruby |### Container| Command | Description ||---------|-------------|| docker | Docker registry |## Usage Examples### List available mirrors```bashx mirror npm lsx mirror pip lsx mirror brew ls```### Set mirror source```bashx mirror npm set npmmirror # Set npm to use Alibaba Cloud mirrorx mirror pip set tuna # Set pip to use Tsinghua mirrorx mirror brew set tuna # Set brew to use Tsinghua mirror```### View current mirror```bashx mirror npm currentx mirror pip current```### Restore default source```bashx mirror npm unsetx mirror pip unset```## Common Scenarios- **Check available npm mirrors**: `x mirror npm ls`- **Set pip to Tsinghua mirror**: `x mirror pip set tuna`- **Check current brew mirror**: `x mirror brew current`- **Restore npm to official**: `x mirror npm unset`## Get HelpRun `x mirror --help` or `x mirror <subcmd> --help` for full documentation.

Frequently asked questions