How it works

From your first answer to a decision

Eight stages. You stay in control at the two that matter: validating the requirements and answering the questions that change the outcome.

  1. 01

    Interview

    An AI interviewer asks about goals, budget, team, existing tools, constraints and priorities.

  2. 02You

    Requirements

    You review the requirements sheet and validate it before any design starts.

  3. 03

    Blind proposals

    Each debater designs a solution without seeing the others, so nobody anchors on the first idea.

  4. 04

    Critiques

    Debaters read each other's plans and write critiques rated blocking, major or minor.

  5. 05You

    Your answer

    When your answer would change the outcome, the debate pauses and asks you.

  6. 06

    Revisions

    Each plan is revised against the critiques it received, or defended with reasons.

  7. 07Arbiter

    Verdict

    An independent arbiter rules on each option, scores them against your criteria and raises any angle nobody examined.

  8. 08Arbiter

    Report

    You get a decision report to read, share or hand to your coding agents.

Debate replay

Watch the arguments land

A short replay of a textbook case (a chain of 12 clothing shops that wants to sell online), then its decision matrix. Move the weights and the ranking follows, as it does in the app.

Demo with sample data
  1. Debater A, software architect

    A turnkey e-commerce platform on subscription: online in about six weeks, and payments are handled for you.

  2. Debater B, cost control

    An open-source shop installed by the agency: more flexible, and no commission on every sale.

  3. Devil's advocate

    Who applies the security updates every month, and who answers on a sales Saturday if the site goes down?

  4. Arbiter

    Nobody has looked at the stock. Your till software updates it only once a night: how do you avoid selling online an item already sold in a shop?

  5. You

    Our till provider offers real-time stock sync, as a paid option.

Decision matrix

Weights
OptionFeasibilityScore
Rank 1Turnkey platformFeasible4.3
Rank 2Open-source shopFeasible with conditions2.8
Rank 3Custom developmentNot feasibleExcluded

Sample data for illustration. In the app, the criteria and weights come from your interview.

Four modes

Pick the kind of debate you need

A full comparison for a big decision, a quick round for a small one, a stress test of the plan you already have, or an audit of the quote you received.

  • A few questions

    Express

    One set of interview questions, then a single short round. A clear answer in a few minutes.

  • Your solution

    Challenge my idea

    Describe the solution you have in mind. The models hunt its flaws and tell you what would make it hold.

  • A provider's quote

    Audit a document

    Attach the quote, statement of work or architecture a provider sent you, and say what it is for. The models check it against your need: what is missing, what is vague, whether the days and the price hold up, and the questions to send back.

    Example: a web agency quotes €38,000 for a booking website. Is it consistent? What is missing?

Ready-made templates

  • Web app
  • Mobile app
  • Data and AI
  • Migration
  • E-commerce

The debate can read

  • PDF spec
  • Word document
  • Web page
  • GitHub repository

The deliverable

Anatomy of a decision report

The arbiter does not just name a winner. It shows its reasoning, so you can check it, share it and act on it.

  1. 1

    Recommendation

    The option to build and the conditions that come with it.

  2. 2

    Interactive decision matrix

    Each option scored against your priorities. Re-weight the criteria and watch the ranking change.

  3. 3

    Debate map

    Where the debaters agree, where they are divided and where they are opposed.

  4. 4

    Risks and mitigations

    What could go wrong, how likely it is, and what to do about it.

  5. 5

    Cost per option

    Build cost and monthly running cost for each option, marked as estimates.

  6. 6

    Architecture diagram

    A generated diagram of the recommended option.

  7. 7

    Roadmap and fact check

    Phases and milestones, and every statement marked verified, estimated or assumed.

Debate map

Each topic placed by how far the debaters are apart.

Agreement

  • Payments handled by the platform
  • Launch before the holidays

Divided

  • Commissions on sales
  • Real-time stock sync
  • Hosting and maintenance by the agency

Opposed

  • Custom development

Rewritten for your reader

  • CTO

    Trade-offs, architecture and risks in full.

  • Executive

    Decision, cost and timeline on one page.

  • Non-technical client

    Plain words, no jargon, what it means for them.

Export it your way

  • Markdown
  • PDF
  • Word
  • Architecture decision record
  • Hand-off pack for coding agents

For coding agents

Debate before your agent writes code

Quorumind runs as an MCP server, so Claude Code, Codex or Cursor can start a debate before they build a feature. The verdict comes back as a plan they can follow.

  • A hand-off pack with CLAUDE.md, AGENTS.md and PLAN.md
  • Decisions recorded as ADRs in your repository
  • Works with any MCP client
Example session

Before adding sign-in, run a Quorumind debate: build it or use a provider?

Debate started: 3 debaters, 1 devil's advocate.

Verdict: use a managed provider, feasible with conditions.

Wrote PLAN.md, AGENTS.md and docs/adr/0007-authentication.md

Features

Everything a hard decision needs

Built for decisions you will have to explain to a client, a manager or your future self.

  • Live debate

    Follow proposals, critiques and revisions as they are written.

  • Expert personas

    Cloud architect, security, cost control, UX or data-protection lawyer, up to four at once.

  • Devil's advocate

    An optional voice whose only job is to attack every option, the favourite first.

  • Consensus check

    The arbiter flags a too-easy agreement and raises the angle nobody examined.

  • Your context attached

    Add a PDF or Word spec, a web page or a GitHub repository.

  • Framing templates

    Start from a web app, a mobile app, data and AI, a migration or an online shop.

  • Capped costs

    In the cloud, you pay the debate's fixed price, never more. Self-hosted, you see the cost of each role as it runs, up to a limit you set.

  • A different AI for each role

    Claude, OpenAI, Gemini or Mistral, chosen for each debater and the arbiter, and Ollama models when self-hosted.

  • Ten languages

    Debate and report in your language. Arabic is displayed right to left.

  • E-mail notifications

    Ask for an e-mail when the debate needs your answer or the report is ready.

  • Branded reports

    Put your name, your logo and your colour on the reports you export.

  • Open source

    AGPL v3. Read the code, run it, change it.