quorum

quorum-claude-plugin

Claude Code plugin that adds the /quorum:brainstorm slash command — submits a topic to a multi-agent deliberation against a quorum orchestrator and streams the converged answer back into Claude Code.

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Install (read carefully — the install lines are typed INSIDE Claude Code, not in a terminal)

Step 1 — open Claude Code

In your terminal:

claude

You should now see the Claude Code prompt — the > cursor where you normally type questions.

Step 2 — register this repo as a plugin marketplace

At the Claude Code prompt (not your shell), type:

/plugin marketplace add peeramid-labs/quorum-claude-plugin

The leading / is what makes Claude Code intercept this — it's a built-in slash command, not a message to the model.

Step 3 — install the plugin from that marketplace

Still at the Claude Code prompt:

/plugin install quorum@quorum-marketplace

quorum is the plugin name (defined in .claude-plugin/plugin.json in this repo); quorum-marketplace is the marketplace name (defined in .claude-plugin/marketplace.json).

You'll see Claude Code confirm Plugin "quorum" installed. No restart needed.

Step 4 — use it

Still at the Claude Code prompt:

/quorum:brainstorm Should we adopt elliptic-curve identifiers for agent attestation?

(or whatever topic you want the agent team to deliberate on)

The plugin runs prereq checks, dispatches the deliberation via the local quorum CLI, streams agent activity as it arrives, and surfaces the converged verdict.

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Why two slash commands (not one)?

Claude Code doesn't install plugins from raw GitHub URLs. It installs them from a marketplace — a JSON registry that lists one or more plugins. This repo ships both the marketplace registry and the plugin itself, so step 2 (marketplace add) and step 3 (plugin install) point at the same repo. Two commands; one repo.

claude plugin install peeramid-labs/quorum-claude-plugin typed at a terminal will NOT work — that's not a real shell command. The install machinery is inside Claude Code; the slash-command flow above is the only supported install path today.

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Prerequisites

The skill expects, in your shell environment:

Requirement	How to install / set
quorum CLI ≥ 0.6.0	cargo install --locked --git https://github.com/peeramid-labs/quorum-rs --branch dev quorum-rs
QUORUM_DEMO_TOKEN env var	export QUORUM_DEMO_TOKEN=<token from the demo handout>
nsed.yaml in pwd	curl -fsSL https://raw.githubusercontent.com/peeramid-labs/nsed/demo/zoom-for-ai/examples/demo/nsed.yaml > nsed.yaml

Note on the quorum install: the crates.io quorum-cli package belongs to a different project and is NOT what this skill expects. The git-install above pulls v0.6.0+ from the canonical repo's default branch (peeramid-labs/quorum-rs), which ships the quorum binary as part of the quorum-rs crate. Once a release tag publishes quorum-rs to crates.io, the simpler cargo install quorum-rs will work too. Rust toolchain required (rustup install stable if you don't have one).

If any prerequisite is missing the skill surfaces the exact fix and refuses to proceed — no silent failures.

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Uninstall

At the Claude Code prompt:

/plugin uninstall quorum
/plugin marketplace remove quorum-marketplace

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What the plugin does internally

1. Verifies the four prerequisites above
2. Runs quorum run --room <room> against the orchestrator named in nsed.yaml
3. Streams agent activity (-> CortexA propose, <- CortexA proposed, etc.) back to the user as it arrives
4. Reads verdict.md from the output dir and presents it, with a footer pointing at quorum trace <job_id> for per-round drill-down

The full skill prompt is at skills/brainstorm/SKILL.md in this repo.

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Source

Authored in the nsed repo at examples/demo/plugin/; this repository is a distribution mirror. File issues / PRs against the source repo.