Drive and inspect a whole Windows machine from Bun — apps, windows, input, screen, OCR, registry, and OS — exposed as a security-gated, profile-based MCP server. Pure TypeScript over bun:ffi, zero native deps.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add umbriel -- npx -y umbriel~/.codex/config.toml
[mcp_servers.umbriel]
command = "npx"
args = ["-y", "umbriel"]
# codex mcp add umbriel -- npx -y umbriel~/.cursor/mcp.json
{
"mcpServers": {
"umbriel": {
"command": "npx",
"args": [
"-y",
"umbriel"
]
}
}
}.vscode/mcp.json
{
"servers": {
"umbriel": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"umbriel"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"umbriel": {
"command": "npx",
"args": [
"-y",
"umbriel"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"umbriel": {
"command": "npx",
"args": [
"-y",
"umbriel"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"umbriel": {
"command": "npx",
"args": [
"-y",
"umbriel"
]
}
}
}