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, add the mumo marketplace, then install the plugin from it. Claude Code prompts for your API key during install and stores it in your system keychain.

/plugin marketplace add mumo-chat/mumo-claude
/plugin install mumo@mumo

Why not the built-in plugin manager? mumo isn't in Claude Code's bundled plugin directory, so searching there won't find it. The two commands above install the current release straight from our repo; mumo@mumo names the plugin and the marketplace you just added.

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.