Behavioral litmus harness for MCP servers — the open @polygraphso/litmus package (CLI, library, MCP server).
Quick Install
Copy the config for your editor. Some servers may need additional setup — check the README.
Add to claude_desktop_config.json:
{
"mcpServers": {
"litmus": {
"command": "npx",
"args": [
"-y",
"polygraphso/litmus"
]
}
}
}
Run in terminal:
claude mcp add litmus npx -y polygraphso/litmus
Add to .cursor/mcp.json:
{
"mcpServers": {
"litmus": {
"command": "npx",
"args": [
"-y",
"polygraphso/litmus"
]
}
}
}