Your agents.
Working together.

Bring Claude, Codex, Cursor and local models into one workspace. Set up a team around the way you work.

Bring your existing provider plans.

ClaudeCodexCursorLocal models

The Coliseum

The Coliseum workspace with projects, connections, saved work and an editable team.

01 · SHAPE YOUR TEAM

The right role.
The model you choose.

Start with a preset. Give each seat a role, choose its model, and make the instructions your own.

Your team4 seats
Example setup

Try a starting point

Coordinator

Plans the work and delegates to the right seats.

Builder

Creates the result and brings the pieces together.

Worker

Handles focused research, checks and smaller tasks.

Independent Checker

Reviews the result against your original request.

Your roles, your wording. Add more seats when they help.Models depend on your connected accounts.

02 · LET THEM WORK TOGETHER

One request.
A team that follows through.

See who is doing what, watch the handoffs, and get a separate check before the result comes back to you.

Workshop planExample conversation
Turn today’s meetings into a clear PDF for Friday’s workshop.
CoordinatorClaude · Fable

I’ll ask @worker to pull out the key decisions, @builder to create the workshop plan, and @checker to review it.

@worker · Gather the decisions and owners
WorkerClaude · Sonnet

@builder Here are the decisions, owners and open questions from the notes.

BuilderClaude · Opus

@checker The workshop plan is ready. Please check it against the original notes.

Independent CheckerClaude · Fable

@coordinator I checked the dates and owners. One missing deadline is clearly flagged in the PDF.

Workshop plan.pdfExample of a checked result
Describe what you want to accomplish…
Workshop · Team workflow

A team you can shape.

Choose the models, roles and instructions. Start with a preset or make it your own.

Your work comes with you.

Choose an existing folder and keep using the native tools and project rules you already have.

Keep moving forward.

Progress saves automatically. Useful lessons are checked during later work and carried forward, so your team can adapt over time.

ON YOUR DESKTOP

Make room for your team.

Launching first on Mac. Windows is releasing soon.

Mac

Apple Silicon

Windows

64-bit PC

EARLY ACCESS

$20/month

The harness, your teams and your project memory.
Your provider plans are billed separately.

A better place to work together.

Sign in with email or Google. Then bring the AI accounts you already use.

Create your account

No payment is taken when you create an account.