muyue

AI-powered development environment assistant by La Légion de Muyue.

What it does

muyue is a single binary (frontend embedded) that transforms your entire development environment:

• Desktop app — React web UI served locally, auto-opens in your browser
• Scans your system for tools, runtimes, and configs
• Installs missing tools automatically (Crush, Claude Code, BMAD, Starship, runtimes...)
• Updates everything in the background
• Profiles you on first run to personalize the experience
• Unifies control of Crush and Claude Code from one interface
• Orchestrates AI agents via MiniMax M2.7
• Configures MCP servers, LSPs, and skills automatically
• i18n — Full FR/EN support with keyboard layout awareness (AZERTY, QWERTY, QWERTZ)
• 4 themes — Cyberpunk Red, Cyberpunk Pink, Midnight Blue, Matrix Green

Browser Extension

Muyue ships a browser extension (Chrome, Edge, Firefox) that replaces the manual snippet injection for the Tests tab:

• Auto-injects the Muyue test client on every HTTP/HTTPS page — no more copy-paste
• Captures console errors/warnings in real-time
• Native screenshots via captureVisibleTab — pixel-perfect
• Side Panel (Chrome/Edge) and Sidebar (Firefox) for status monitoring
• Badge shows active session count or server status

Install from source

cd extension
npm install
npm run build          # Chrome/Edge → .output/chrome-mv3/
npm run build:firefox  # Firefox → .output/firefox-mv2/

Then load the extension:

• Chrome/Edge: chrome://extensions → Developer mode → Load unpacked → select extension/.output/chrome-mv3/
• Firefox: about:debugging#/runtime/this-firefox → Load temporary Add-on → select any file in extension/.output/firefox-mv2/

Download pre-built

Extension .zip files are attached to every release:

• muyue-extension-*-chrome.zip — Chrome Web Store ready
• muyue-extension-*-firefox.zip — Firefox Add-ons ready
• muyue-extension-*-sources.zip — Required source for Firefox Add-ons review

Development

cd extension
npm run dev            # Chrome dev mode with HMR
npm run dev -- --browser firefox  # Firefox dev mode

Tech Stack

Layer	Technology
Backend	Go 1.24 — single binary, no runtime dependencies
Frontend	React 19, Vite 8 — embedded via go:embed
Styling	CSS custom properties, 4 built-in themes
i18n	Custom FR/EN system with keyboard layout awareness
CLI	Charm (Bubble Tea, Huh) — for setup wizard, profiler, and CLI commands
AI	MiniMax M2.7 — orchestration
CI/CD	Gitea Actions — Go + Node build, multi-platform releases

Install

go build -o muyue ./cmd/muyue/

Or with Make:

make build
make install-local

The frontend is built automatically during make build (runs npm ci && npm run build in web/).

Usage

muyue              # Launch desktop app (opens browser)
muyue --port=8080  # Launch on a specific port
muyue --no-open    # Launch without opening the browser
muyue scan         # Scan system
muyue install      # Install missing tools
muyue update       # Check and apply updates
muyue setup        # Run setup wizard
muyue config       # Show configuration
muyue doctor       # Diagnose configuration issues
muyue version      # Show version

LSP Management

muyue lsp scan              # Scan for installed LSP servers
muyue lsp install           # Install LSPs for configured languages
muyue lsp install gopls     # Install a specific LSP

MCP Server Configuration

muyue mcp config            # Configure MCP servers for Crush and Claude Code
muyue mcp scan              # Scan available MCP servers

Skills Management

muyue skills list           # List installed skills
muyue skills init           # Install built-in skills
muyue skills show <name>    # Show skill details
muyue skills generate <name> <desc> [crush|claude|both]  # AI-generate a skill
muyue skills deploy         # Deploy skills to Crush and Claude Code
muyue skills delete <name>  # Delete a skill

Desktop App — 4 Tabs

The web UI is organized into 4 tabs with a cyberpunk dark theme. Navigate with Ctrl+1 through Ctrl+4.

■ Dashboard

System overview with sub-tabs:

• Tools — installed/missing tools with status badges and version info
• Notifications — activity log with colored severity
• Workflows — quick actions (install missing, check updates, rescan, configure MCP)

⟨⟩ Studio

AI chat interface with a sidebar containing 3 panels:

Panel	Description
Chat	AI conversation, /plan <goal> to start workflows
Agents	Status of Crush and Claude Code agents
Workflows	Plan→Execute workflow controls

$ Shell

Split-view: terminal emulator on the left (sends commands to the Go backend), collapsible AI assistant panel on the right. Full command history with ↑/↓ navigation.

⚙ Config

Two-column profile settings:

• Profile — name, pseudo, email, editor, shell, default AI, languages
• AI Providers — active provider, API key status, model info
• Theme — 4 swatches (Cyberpunk Red, Cyberpunk Pink, Midnight Blue, Matrix Green)
• Language — FR/EN with keyboard layout selection (AZERTY, QWERTY, QWERTZ)
• Skills — installed skills list

Keyboard Shortcuts

Key	Context	Action
Ctrl+1	Global	Dashboard tab
Ctrl+2	Global	Studio tab
Ctrl+3	Global	Shell tab
Ctrl+4	Global	Config tab
Enter	Studio	Send message
Shift+Enter	Studio	New line
Enter	Shell	Run command
↑/↓	Shell	Command history

API Endpoints

The Go backend serves 15 REST endpoints under /api/:

Endpoint	Method	Description
/api/info	GET	App name, version, author
/api/system	GET	OS, arch, platform info
/api/tools	GET	Tool scan results
/api/config	GET	Profile, terminal, BMAD config
/api/providers	GET	AI provider list
/api/skills	GET	Installed skills
/api/lsp	GET	LSP server scan
/api/mcp	GET	MCP server scan
/api/updates	GET	Update check results
/api/scan	POST	Trigger system rescan
/api/install	POST	Install tools {"tools": [...]}
/api/terminal	POST	Execute command {"command": "...", "cwd": "..."}
/api/mcp/configure	POST	Configure MCP servers
/api/preferences	PUT	Save language/keyboard preferences

Project Structure

.
├── cmd/muyue/main.go          # CLI entry point + command routing
├── internal/
│   ├── api/                   # HTTP server + handlers (15 endpoints)
│   ├── config/                # YAML config + XDG paths
│   ├── daemon/                # Background daemon
│   ├── desktop/               # Desktop mode (HTTP server + SPA)
│   ├── installer/             # Tool installation logic
│   ├── lsp/                   # LSP server scan + install
│   ├── mcp/                   # MCP server configuration
│   ├── orchestrator/          # AI agent orchestration
│   ├── platform/              # Cross-platform abstractions
│   ├── preview/               # HTML preview server
│   ├── profiler/              # First-run setup wizard
│   ├── proxy/                 # AI proxy agents
│   ├── scanner/               # System tool/runtime scanner
│   ├── secret/                # AES-256-GCM key encryption
│   ├── skills/                # Skills management (CRUD, deploy, AI-generate)
│   ├── updater/               # Tool auto-updater
│   ├── version/               # Version constants
│   └── workflow/              # Plan→Execute workflow engine
├── web/                       # Frontend (React 19 + Vite)
│   ├── embed.go               # go:embed dist/
│   ├── src/
│   │   ├── api/client.js      # API client
│   │   ├── components/        # App, Dashboard, Studio, Shell, Config
│   │   ├── i18n/              # FR/EN translations + keyboard layouts
│   │   ├── styles/global.css  # Full CSS theme system
│   │   └── themes/index.js    # 4 themes with CSS variable injection
│   └── vite.config.js         # Vite + dev proxy to :8095
├── extension/                 # Browser extension (WXT, Chrome/Edge/Firefox)
│   ├── src/entrypoints/       # background, content, popup, sidepanel
│   ├── src/lib/               # config, page-rpc (shared logic)
│   └── src/styles/            # cyberpunk panel CSS
├── .gitea/workflows/          # CI/CD (PR check, beta, stable)
└── Makefile                   # build, test, lint, cross-compile

Configuration

Config stored at $XDG_CONFIG_HOME/muyue/config.yaml (defaults to ~/.config/muyue/config.yaml).

API keys are encrypted at rest using AES-256-GCM with a machine-local key stored in ~/.muyue_key.

First run launches an interactive profiling wizard that:

1. Asks your name, pseudo, email
2. Detects your languages and editor
3. Chooses your AI provider
4. Scans your system
5. Installs missing tools

Themes

4 built-in themes, selectable from the Config tab:

Theme	Accent Color
Cyberpunk Red	#FF0033
Cyberpunk Pink	#FF1A8C
Midnight Blue	#0088FF
Matrix Green	#00FF41

Themes are applied via CSS custom properties injected at runtime. All colors (30+ variables) adapt automatically.

i18n & Keyboard Layouts

• Languages: Français, English
• Keyboard layouts: AZERTY (fr-FR), QWERTY (en-US), QWERTZ (de-DE)
• Keyboard layout affects displayed shortcuts in the status bar (e.g., Ctrl+&-é-"-' on AZERTY vs Ctrl+1-4 on QWERTY)
• Preferences saved to backend and synced across sessions

Security

• API keys encrypted at rest (AES-256-GCM) with a per-machine key
• Config files use restrictive permissions (0600)
• MCP config files use restrictive permissions (0600)
• Terminal API executes commands via shell — only accessible on localhost

Cross-Platform

Built for Linux (primary), macOS, and Windows. WSL supported.

Single binary includes both CLI and embedded web frontend.

Contributing — GitFlow Workflow

This project uses a lightweight GitFlow with 2 permanent branches and conventional commits.

Branch model

feature/xxx  ──PR (squash)──▶  develop  ──PR (merge)──▶  main
fix/xxx      ──PR (squash)──▶  develop
hotfix/xxx   ──PR (squash)──▶  main (+ backport develop)

Branch	Purpose	Permanent?
main	Production — stable releases only	Yes
develop	Integration — all features merge here first	Yes
feature/*	New feature or enhancement	No (deleted after merge)
fix/*	Bug fix	No
hotfix/*	Urgent fix on production	No

Release channels

Event	Channel	Tag format	Prerelease?
PR merge → develop	Beta	vX.Y.Z-beta.N	Yes
Merge develop → main	Stable	vX.Y.Z	No

CI/CD Pipelines

Workflow	Trigger	What it does
ci-pr.yml	PR to main or develop	vet + test + build (no release)
ci-develop.yml	Push to develop	vet + test + build all platforms + create beta release
ci-main.yml	Push to main	vet + test + build all platforms + update CHANGELOG.md + create stable release

All CI pipelines build the frontend (npm ci && npm run build) before Go vet/test/build.

Step-by-step: contribute a feature

# 1. Create your branch from develop
git checkout develop
git pull
git checkout -b feature/my-feature

# 2. Work, commit with conventional messages
git commit -m "feat: add amazing thing"
git commit -m "docs: update usage"

# 3. Push and create a PR to develop (squash merge)
git push -u origin feature/my-feature
# → Create PR on Gitea: feature/my-feature → develop
# → CI runs ci-pr.yml (test + vet + build)
# → Squash & merge the PR
# → ci-develop.yml triggers: beta release created

Step-by-step: release a stable version

# 1. Bump the version in internal/version/version.go
#    Change: Version = "0.2.1"  →  Version = "0.3.0"
#    Commit on develop:
git checkout develop
# (edit internal/version/version.go)
git commit -m "chore: bump version to 0.3.0"
git push

# 2. Create a PR from develop to main
# → CI runs ci-pr.yml (test + vet + build)
# → Merge the PR
# → ci-main.yml triggers:
#    - Builds all platforms
#    - Auto-generates changelog from conventional commits
#    - Updates CHANGELOG.md
#    - Creates stable release v0.3.0

Step-by-step: hotfix on production

# 1. Create hotfix branch from main
git checkout main
git pull
git checkout -b hotfix/critical-fix

# 2. Fix and commit
git commit -m "fix: resolve critical issue"

# 3. Create PR to main (squash merge)
# → CI runs, then ci-main.yml creates a new stable release

# 4. Backport to develop
git checkout develop
git merge hotfix/critical-fix
git push

Versioning — How it works

The base version (X.Y.Z) is manual. It lives in internal/version/version.go:

const (
    Version = "0.2.1"  // ← bump this before a release
)

The prerelease suffix is automatic:

• Beta: ci-develop.yml auto-increments beta.N by counting existing vX.Y.Z-beta.* tags
• Stable: ci-main.yml uses the exact version from version.go (no suffix)

Binary version is injected at build time via -ldflags:

# Beta build (automatic in CI)
go build -ldflags="-X github.com/muyue/muyue/internal/version.Prerelease=beta.3" ./cmd/muyue/
# → muyue v0.2.1-beta.3

# Stable build (automatic in CI)
go build -ldflags="-s -w" ./cmd/muyue/
# → muyue v0.2.1

Conventional commits

Use Conventional Commits for all commit messages:

Prefix	Use for	Example
feat:	New feature	feat: add Docker support
fix:	Bug fix	fix: correct config path on Windows
docs:	Documentation	docs: add API reference
chore:	Maintenance	chore: bump version to 0.3.0
refactor:	Code restructuring	refactor: split scanner module
perf:	Performance	perf: cache scanner results
test:	Tests	test: add config unit tests
ci:	CI/CD changes	ci: add beta release workflow
security:	Security fixes	security: encrypt API keys at rest

Branch protection (configure in Gitea UI)

• main: Require PR + passing CI + at least 1 approval
• develop: Require PR + passing CI
• Squash merge: Enabled by default for PRs to develop
• Merge commit: For PRs from develop to main

License

MIT