Install mumo in Claude Code.

Generate your API key

Sign in, create a mumo API key, and copy the value that starts with mmo_live_. You'll paste it in the next step when Claude Code prompts for it.

Install the mumo plugin

In Claude Code, open the plugin manager and search for mumo. Install, then paste your API key when prompted. Your key is stored in your system keychain.

/plugin
# search for "mumo", install, paste API key

Can't find mumo in the marketplace? No problem — install directly from our repo while the Plugin Directory listing rolls out:

/plugin marketplace add mumo-chat/mumo-mcp
/plugin install mumo

Same flow either way — Claude Code prompts for your API key during install and stores it in the keychain.

Run your first deliberation

Ask Claude Code to use mumo on a contested decision. Name mumo explicitly the first time so the agent reaches for the panel.

Ask mumo to compare Postgres and MongoDB for our event store.
Include the constraints from this repo and tell me where the models disagree.

The plugin auto-triggers on architecture decisions, design reviews, red-team pressure-testing, and other contested calls — explicit invocation just guarantees the first run.