Hand-drawn whiteboard for system design mock interviews; your AI watches, asks and gives feedback.
Connect Runs on your machine
claude mcp add sysdesign-board -e SYSDESIGN_PORT=<SYSDESIGN_PORT> -- npx -y [email protected]{
"mcpServers": {
"sysdesign-board": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"SYSDESIGN_PORT": "<SYSDESIGN_PORT>"
}
}
}
}{
"mcpServers": {
"sysdesign-board": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"SYSDESIGN_PORT": "<SYSDESIGN_PORT>"
}
}
}
}{
"servers": {
"sysdesign-board": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"SYSDESIGN_PORT": "<SYSDESIGN_PORT>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
SYSDESIGN_PORTOptional | Local port for the whiteboard page (http://localhost:<port>). Defaults to 4321. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 21 Oct 2026 |
| Last updated | 21 Oct 2026 |
| Registry name | io.github.tGhattas/sysdesign-board |
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