Quorum

Compare multiple AI models at once. Quorum runs a panel — a council — of AI models that deliberate, disagree, and converge on one recommendation instead of a single model's guess: a built-in second opinion for code review, debugging, architecture, design, and more. Copilot-first.

Quorum sidebar

Features

7 council types — Spec Review, Debugging, Code Review, Design Review, Research Synthesis, Architecture Tradeoff, PM Strategy
Multi-model panels — 3–5 models deliberate, disagree, and converge on a recommendation
Decision memos — Structured output with recommendation, dissent, confidence, and evidence
Council Threads — Continue the conversation with follow-up questions in an editor tab
Code context (opt-in) — Ground councils on your repository: selected files and their direct imports are captured as a redacted, content-hashed snapshot and cited in the memo
Auto-routing — Describe your problem and let Quorum pick the right council type
Copilot-first — Works with your existing GitHub Copilot subscription out of the box

Quick Start

1. Install

Search for Quorum in the VS Code Extensions view, or install from the Marketplace.

2. First Run

Open the Quorum sidebar (activity bar icon)
Type your question or paste a spec/code snippet into the composer
Select a council type (or let auto-routing choose)
Click Run Council — models deliberate and produce a decision memo

Recent runs and decisions

3. Follow Up

Once a memo is produced, open the Council Thread to ask follow-up questions. The thread maintains full context from the original deliberation.

Council thread follow-up

Council Types

Council	Purpose
Spec Review	Find contradictions, missing requirements, ambiguity
Debugging	Compare hypotheses, map evidence, eliminate weak explanations
Code Review	Multi-perspective review with explicit disagreement
Design Review	Evaluate design decisions and tradeoffs
Research Synthesis	Identify flaws, blind spots, and missing evidence
Architecture Tradeoff	Structured tradeoff analysis with weighted criteria
PM Strategy	Product strategy evaluation and prioritization

Configuration

Setting	Default	Description
`routerCouncil.provider.mode`	`copilot-only`	Provider strategy: `copilot-only`, `copilot-preferred`, or `mixed`
`routerCouncil.models.defaultPanelSize`	`3`	Number of models per council run (1–5)
`routerCouncil.councils.maxExtraIterations`	`2`	Extra critique rounds when disagreement is high (0–2)

Requirements

VS Code 1.100+
GitHub Copilot subscription (for copilot-only and copilot-preferred modes)
For mixed mode: an OpenAI-compatible API endpoint (see Developer Guide)

Development

See the Developer Guide for provider setup, architecture notes, troubleshooting, and test commands.

Naming & research

Quorum was previously named Router Council. That earlier name is intentionally retained in some internal identifiers for backward compatibility — command and setting IDs (routerCouncil.*), the on-disk router-council run-storage folder, and prompt-template IDs — so existing keybindings, settings, and saved runs keep working. All end-user-facing text is "Quorum".

The extension is also the software artifact studied in the research paper "When Does Iteration Pay? Characterizing Dissent-Driven Deliberation in Multi-Model AI Councils", which refers to the tool by its development name Router Council for citation stability. The paper and the extension are distinct publications.

License

See LICENSE.

Quorum — Multi-Model AI Council

Dvir Shamay